HP | E6380-90019 | User's Manual | HP E6380-90019 User's Manual

HP 8935 CDMA Cellular/PCS Base Station
Test Set
Reference Guide
Firmware Version: A.01.00 and above
HP Part Number E6380-90019
Revision A
Printed in U.S.A.
November 1997
© Copyright 1997 Hewlett-Packard Company
Main Menu
Notice
Information contained in this document is subject to change without
notice.
All Rights Reserved. Reproduction, adaptation, or translation without
prior written permission is prohibited, except as allowed under the
copyright laws.
This material may be reproduced by or for the U.S. Government
pursuant to the Copyright License under the clause at DFARS
52.227-7013 (APR 1988).
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Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
In This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Conventions Used in this Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1. Getting Started
Before Connecting a Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Test Set’s Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Measurement Screen . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Control Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How do I Verify that the Test Set is Operating Properly? . . . . . . . . .
Instrument Quick Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
25
25
26
31
31
2. Operating Overview
Displaying CDMA Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Channel Power, Rho, EVM, Average Power . . . . . . . . . . . . . . . . . . . 34
Code Domain Measurements (Power, Timing, Phase) . . . . . . . . . . . 35
Displaying Analog Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Displaying AF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Displaying Analog Measurement Results on a Meter Scale . . . . . . 39
Using Channel Numbers to Set Analyzer and Generator Frequencies40
Calibrating the Channel Power Measurement . . . . . . . . . . . . . . . . . . 41
Changing the Increment or Decrement Setting. . . . . . . . . . . . . . . . . . 42
Specifying An Increment Value for the Arrow Keys or Knob . . . . . 42
Using the Factor of 10 Increment/Decrement Keys . . . . . . . . . . . . . 42
Using Measurement Limit Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 43
Setting A Measurement Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Averaging Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
How the Test Set Averages Measurements . . . . . . . . . . . . . . . . . . . 46
Setting an RF Generator/Analyzer Offset . . . . . . . . . . . . . . . . . . . . . . 47
Saving and Recalling Instrument Setups. . . . . . . . . . . . . . . . . . . . . . . 48
Register Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Memory Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Instrument Hardware Changes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Using USER Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Using Pre-Defined USER Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Assigning and Releasing USER Keys . . . . . . . . . . . . . . . . . . . . . . . . 52
Replacing Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3. Overview of the Test Set’s
Built-In Tools
Using RF Tools Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Swept Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Discrete Freq Insertion Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Swept Insertion Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Swept Return Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replot Data Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Transfer Stored Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SA (spectrum analyzer) Self Calibration ON/OFF . . . . . . . . . . . . . .
Catalog PC (Memory) Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Set Up Printer/Data Collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Code Domain Analyzer. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Code Domain Analyzer’s Controls Menus . . . . . . . . .
Using the Spectrum Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Resolution Bandwidth and Sweep Rate . . . . . . . . . . . . . . . .
Selecting the Spectrum Analyzer’s Controls Menus. . . . . . . . . . . . .
Using the Voltmeter and Audio Frequency Counter . . . . . . . . . . . . . .
Using the Oscilloscope (Scope) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Oscilloscope’s Input . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Oscilloscope’s Filters . . . . . . . . . . . . . . . . . . . . . . . . . .
Triggering the Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Oscilloscope’s Marker . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using IB_UTIL Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COPY_PL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FILE_XFER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RAM_USAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing a Test Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearing RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the LISTOPTS (list options) Program . . . . . . . . . . . . . . . . . . . .
Using the DEMO Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the ST_PLT (store or plot) Program . . . . . . . . . . . . . . . . . . . . .
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4. CDMA Measurements - Screens
and Control Fields
CDMA Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Average Power Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Channel Power Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Rho Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Error Vector Magnitude (EVM) Measurements . . . . . . . . . . . . . . . . 88
Code Domain Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Control Fields for CDMA Measurements . . . . . . . . . . . . . . . . . . . . . . . 93
ADCfs or ADC FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Analyzer (CDMA analyzer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Analyzer (code domain analyzer). . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Anl Dir. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Anl Special . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Auto Zero. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Car FT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Chn Pwr Cal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
CW RF Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Data Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Data Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Even Sec In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
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Freq Err. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gen Dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gen Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gen Special . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Atten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lvl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Meas Intvl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Num Avgs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ofs Trnsfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PN Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pwr Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pwr Intvl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pwr Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pwr Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Qual Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Gen Freq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF In/Ant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TmOfs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trig Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tune Freq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Walsh Chan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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5. Analog Measurements - Screens
and Control Fields
Analog Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AM Depth Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AF Freq Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distn (Distortion) Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . .
FM Deviation Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency Error Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TX Power Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FM Deviation Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AF Freq (Audio Frequency) Measurement . . . . . . . . . . . . . . . . . . .
SINAD Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNR Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Fields for Analog Measurements. . . . . . . . . . . . . . . . . . . . . .
AF Anl In. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AF Cnt Gate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AFGen1 Freq. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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AFGen1 To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AFGen2 Freq. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AFGen2 To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Atten Hold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio In Lo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto/Norm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto Zero. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Freq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cont/Single . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
De-Emp Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
De-Emphasis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ext Load R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FM Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freq (marker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain Cntl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IF Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Atten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Level (div) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lvl (marker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Marker To Peak+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Marker To Peak- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Marker To (spectrum analyzer) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mod In To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No Pk/Avg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normalize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notch Freq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notch Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Offset Freq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pk Det To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Port/Sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ref Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Cnt Gate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Gen Freq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF In/Ant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensitivity (RF analyzer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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124
125
125
126
126
127
127
127
128
128
128
128
129
129
130
131
131
132
133
133
134
135
135
136
136
137
137
138
139
139
139
140
140
141
141
142
142
143
143
144
145
146
146
147
147
148
148
149
150
Contents
Sensitivity (spectrum analyzer) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Span. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speaker ALC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speaker Vol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time/div . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Track/Fixed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trig-Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tune Freq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TX Pwr Meas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TX Pwr Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vert/div . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vert Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
150
151
151
152
152
153
154
154
154
155
156
156
157
158
158
6. Configuration - Screens and Control Fields
Configuring the Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Date and Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Beeper’s Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turning Off User Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring for Printing A Screen . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printing a Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Fields on the Configuration Screens . . . . . . . . . . . . . . . . . . .
Abort Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antenna In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Freq (User Defined) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Beeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chan Space (User Defined) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display User Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duplex Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ext Ref In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FF at End: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FF at Start: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firmware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frame Clock Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Gen)-(Anl) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Gen)-(Anl) (User Defined) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP-IB Adrs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IBASIC Echo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inst Echo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lines/Page: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notch Coupl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Opt CDMA TB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
160
160
160
160
161
161
162
162
162
163
164
164
165
165
165
166
166
167
167
167
168
169
169
169
170
170
170
171
171
171
171
172
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Contents
Parity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printer Port: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Print Title:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Range Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ref Select. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Chan Std . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Gen Volts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF In/Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Level Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Save/Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Baud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial_9 In. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial No. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
172
172
172
173
174
175
176
176
177
178
178
179
180
180
180
181
181
181
7. Connectors
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 MHz REF OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16 × CHIP CLOCK 19.6608 MHz OUT . . . . . . . . . . . . . . . . . . . . . .
ANALOG MODULATION IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ANT IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AUDIO IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AUDIO OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BASEBAND OUT (I and Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chassis Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHIP CLOCK 1.2288 MHz OUT . . . . . . . . . . . . . . . . . . . . . . . . . . .
DATA IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DUPLEX OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EVEN SECOND SYNC IN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXT REF IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXT SCOPE TRIG IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRAME CLOCK OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP-IB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MEMORY CARD Slot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARALLEL PORT 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARALLEL PORT 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF IN/OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCOPE MONITOR OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERIAL PORTs 9, 10, and 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TRIGGER QUALIFIER IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIDEO OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
184
184
184
184
185
186
187
187
188
188
188
188
189
189
189
190
190
191
191
191
192
192
193
194
194
8. Accessories, Manuals, Support
Modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
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Contents
Accessories . . . . . . . . . . . . . . . . . . . . . . .
External Monitor . . . . . . . . . . . . . . . .
Manuals (English and non-English) .
Test Software . . . . . . . . . . . . . . . . . . .
Options . . . . . . . . . . . . . . . . . . . . . . . .
HP Support for Your Instrument . . . . .
Getting Help . . . . . . . . . . . . . . . . . . . .
Customer Training . . . . . . . . . . . . . . .
9.
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197
197
197
198
198
199
199
200
Error Messages
General Information About Error Messages . . . . . . . . . . . . . . . . . . .
Positive Numbered Error Messages . . . . . . . . . . . . . . . . . . . . . . . .
Negative Numbered Error Messages. . . . . . . . . . . . . . . . . . . . . . . .
IBASIC Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP-IB Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Text Only Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Message Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-Recoverable Firmware Error . . . . . . . . . . . . . . . . . . . . . . . . . .
Text Only Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
204
204
205
205
206
206
207
207
208
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Contents
10
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Product Information
11
Main Menu
Manufacturer’s
Declaration
This statement is provided to comply with the requirements of the
German Sound Emission Directive, from 18 January 1991.
This product has a sound pressure emission (at the operator position)
< 70 dB(A).
• Sound Pressure Lp < 70 dB(A).
• At Operator Position.
• Normal Operation.
• According to ISO 7779:1988/EN 27779:1991 (Type Test).
Herstellerbescheinigung
Diese Information steht im Zusammenhang mit den Anforderungen der
Maschinenlärminformationsverordnung vom 18 Januar 1991.
• Schalldruckpegel Lp < 70 dB(A).
• Am Arbeitsplatz.
• Normaler Betrieb.
• Nach ISO 7779:1988/EN 27779:1991 (Typprüfung).
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GENERAL
Safety
Considerations
This product and related documentation must be reviewed for
familiarization with safety markings and instructions before operation.
This product has been designed and tested in accordance with IEC
Publication 1010, "Safety Requirements for Electronic Measuring
Apparatus," and has been supplied in a safe condition. This instruction
documentation contains information and warnings which must be
followed by the user to ensure safe operation and to maintain the
product in a safe condition.
SAFETY EARTH GROUND
A uninterruptible safety earth ground must be provided from the main
power source to the product input wiring terminals, power cord, or
supplied power cord set.
CHASSIS GROUND TERMINAL
To prevent a potential shock hazard, always connect the chassis ground
terminal to earth ground when operating this instrument from a dc
power source.
SAFETY SYMBOLS
!
Indicates instrument damage can occur if indicated operating limits are
exceeded. Refer to the instructions in this guide.
Indicates hazardous voltages.
Indicates earth (ground) terminal
WARNING
A WARNING note denotes a hazard. It calls attention to a
procedure, practice, or the like, which, if not correctly
performed or adhered to, could result in personal injury. Do not
proceed beyond a WARNING sign until the indicated conditions
are fully understood and met.
CAUTION
A CAUTION note denotes a hazard. It calls attention to an operation
procedure, practice, or the like, which, if not correctly performed or
adhered to, could result in damage to or destruction of part or all of the
product. Do not proceed beyond an CAUTION note until the indicated
conditions are fully understood and met.
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Safety Considerations for this Instrument
WARNING
!
!
!
This product is a Safety Class I instrument (provided with a
protective earthing ground incorporated in the power cord).
The mains plug shall only be inserted in a socket outlet
provided with a protective earth contact. Any interruption of
the protective conductor inside or outside of the product is
likely to make the product dangerous. Intentional interruption
is prohibited.
Do not expose to or operate this instrument in outdoor
atmospheric conditions such as direct rain, hail, sleet, snow,
icing, sunshine or wind. Operate this instrument only within its
specified temperature humidity conditions.
This instrument is equipped with internal ground fault circuit
interrupter class A.
• This device does not protect against electrical shock due to
contact with both circuit conductors or a fault in supply
wiring to product.
• Do not use extension cord to connect this product to power
receptacle. Attention-ne pas utiliser de rallonge pour
raccorder le detecteur-disjoncteur a la prise de courant.
• Replace cordset only with HP 8120 series. Attention Remplacer uniquement par un cordon amovible numero
8120.
• Do not use in wet location. Ne pas utiliser dans un
emplacement mouille.
WARNING
Whenever it is likely that the protection has been impaired, the
instrument must be made inoperative and be secured against
any unintended operation.
If this instrument is to be energized via an autotransformer (for
voltage reduction), make sure the common terminal is
connected to the earth terminal of the power source.
If this product is not used as specified, the protection provided
by the equipment could be impaired. This product must be used
in a normal condition (in which all means for protection are
intact) only.
No operator serviceable parts in this product. Refer servicing to
qualified personnel. To prevent electrical shock, do not remove
covers.
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Main Menu
Servicing instructions are for use by qualified personnel only.
To avoid electrical shock, do not perform any servicing unless
you are qualified to do so.
The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the product from all voltage
sources while it is being opened.
Adjustments described in the manual are performed with
power supplied to the instrument while protective covers are
removed. Energy available at many points may, if contacted,
result in personal injury.
The power cord is connected to internal capacitors that my
remain live for 5 seconds after disconnecting the plug from its
power supply.
For Continued protection against fire hazard, replace the line
fuse(s) only with 250 V fuse(s) or the same current rating and
type (for example, normal blow or time delay). Do not use
repaired fuses or short circuited fuseholders. FUSE: T 5.0A
CAUTION
Always use the three-prong ac power cord supplied with this product.
Failure to ensure adequate earth grounding by not using this cord may
cause personal injury and/or product damage.
This product is designed for use in Installation Category II and
Pollution Degree 2 per IEC 1010 and IEC 664 respectively. For indoor
use only.
This product has autoranging line voltage input, be sure the supply
voltage is within the specified range.
Ventilation Requirements: When installing the product in a cabinet,
the convection into and out of the product must not be restricted. The
ambient temperature (outside the cabinet) must be less than the
maximum operating temperature of the product by 4° C for every 100
watts dissipated in the cabinet. If the total power dissipated in the
cabinet is greater than 800 watts, then forced convection must be used.
To prevent electrical shock, disconnect instrument from mains (line)
before cleaning. Use a dry cloth or one slightly dampened with water to
clean the external case parts. Do not attempt to clean internally.
Product Markings
CE - the CE mark is a registered trademark of the European
Community. A CE mark accompanied by a year indicated the year the
design was proven.
CSA - the CSA mark is a registered trademark of the Canadian
Standards Association.
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CERTIFICATION
Hewlett-Packard Company certifies that this product met its published
specifications at the time of shipment from the factory.
Hewlett-Packard further certifies that its calibration measurements
are traceable to the United States National Institute of Standards and
Technology, to the extent allowed by the Institute’s calibration facility,
and to the calibration facilities of other International Standards
Organization members.
WARRANTY
This Hewlett-Packard instrument product is warranted against defects
in material and workmanship for a period of one year from date of
shipment. During the warranty period, Hewlett-Packard Company will
at its option, either repair or replace products which prove to be
defective.
For warranty service or repair, this product must be returned to a
service facility designated by HP. Buyer shall prepay shipping charges
to HP and HP shall pay shipping charges, duties, and taxes for products
returned to HP from another country.
HP warrants that its software and firmware designated by HP for use
with an instrument will execute its programming instructions when
properly installed on that instrument. HP does not warrant that the
operation of the instrument, or software, or firmware will be
uninterrupted or error free.
LIMITATION OF
WARRANTY
The foregoing warranty shall not apply to defects resulting from
improper or inadequate maintenance by Buyer, Buyer-supplied
software or interfacing, unauthorized modification or misuse, operation
outside of the environmental specifications for the product, or improper
site preparation or maintenance.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP
SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
EXCLUSIVE
REMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND
EXCLUSIVE REMEDIES. HP SHALL NOT BE LIABLE FOR ANY
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, WHETHER BASE ON CONTRACT,
TORT, OR ANY OTHER LEGAL THEORY.
ASSISTANCE
Product maintenance agreements and other customer assistance
agreements are available for Hewlett-Packard products. For any
assistance, contact your nearest Hewlett-Packard Sales and Service
Office.
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Table 1
Regional Sales and Service Offices
Eastern USA
Sales Office
Hewlett-Packard Company
2101 Gather Rd.
Rockville, MD 20850
Tel: (301) 258-2000
Eastern USA
Sales Office
Hewlett-Packard Company
2101 Gather Rd.
Rockville, MD 20850
Tel: (301) 258-2000
Midwestern USA
Sales and Service
Hewlett-Packard Company
5201 Tollview Drive
Rolling Meadows, IL 60008
Tel: (708) 342-2000
Southern USA
Sales and Service
Hewlett-Packard Company
1995 North Park Place
Atlanta, GA 30339
Sales
Tel: (404) 955-1500
Fax: (404) 980-7292
Service
Tel: (404) 850-2544
Fax: (404) 980-7292
Southern USA
Service Center
Hewlett-Packard Company
930 E. Campbell Road
Richardson, TX 75081
Tel: (214) 699-4331
Western USA
Service Center
Hewlett-Packard Company
301 E. Evelyn Avenue
Mountain View, CA 94041
Tel: (415) 694-2000
Fax: (415) 694-0601
Western USA
Sales and Service
Hewlett-Packard Company
24 Inverness Place East
Englewood, CO 80112
Sales
Tel: (303) 649-5000
Fax: (303) 649-5787
Service
Tel: (303) 649-5512
Fax: (303) 649-5787
Western USA
Sales and Service
Hewlett-Packard Company
1421 South Manhattan Avenue
Fullerton, CA 92631
Sales
Tel: (714) 999-6700
Fax: (714) 778-3033
Service
Tel: (714) 758-5490
Fax: (714) 778-3033
United States of America
Customer Information Center
Hewlett-Packard Company
Tel: (800) 752-0900
6:00 am to 5:00 pm Pacific Time
Parts Direct: 1-800-227-8164
South Eastern Europe
Sales and Service
Hewlett-Packard Ges. m.b.h.
Liebigasse 1
P.O. Box 72
A-1222 Vienna, Austria
Telephone: 43 222 2500 0
Telex: 13 4425
European Multicountry Region
Sales and Service
Hewlett-Packard S.A.
P.O. Box 95
150, Route dv Nant_dl_AVRIL
CH-1217 Meyrin 2
Geneva, Switzerland
Telephone: (41/22) 780-8111
Fax: (41/22) 780-8542
Northern Europe
Sales and Service
Hewlett-Packard Nederland B.V.
Startbaan 16
1187 XR
Amstelveen, The Netherlands
P.O. Box 667
Telephone: 31/20 5476911 X 6631
Fax: 31-20-6471825NL
17
Main Menu
Asia
Sales and Service
Hewlett-Packard Asia Ltd.
22-30/F Peregrine Tower
Lippo Center
89 Queensway, Central
Hong Kong
G.P.O. Box 863 Hong Kong
Telephone: 852-848-7777
Fax: 852-868-4997
Japan
Sales and Service
Yokogawa-Hewlett-Packard Ltd.
3-29-21, Takaido-Higashi
Suginami-Ku, Tokyo 168
Telephone: 81 3 3331-6111
Fax: 81 3 3331-6631
International Sales Branch
Headquarters
Sales and Service
Hewlett-Packard S.A.
39 Rue Veyrot
P.O. Box 365
1217 Meyrin 1
Geneva, Switzerland
Telephone: 41-22-780-4111
Fax: 41-22-780-4770
Australia, New Zealand
Sales and Service
Hewlett-Packard Ltd.
P.O. Box 221
31-41 Joseph Street
Blackburn, Victoria 3130
Telephone: (61/3) 895-2895
Fax: (61/3) 898-9257
Canada
Sales and Service
Hewlett-Packard (Canada) Ltd.
5150 Spectrum Way
Mississauga, Ontario L4W 5G1
Canada
Telephone: (416) 206-4725
Fax: (416) 206-4739
Canada
Service Center
Hewlett-Packard Company
17500 Transcanada Highway
S. Serv Road
Kirkland, Quebec H9J 2X8
Canada
Telephone: (416) 206-3295
Canada
Service Center
Hewlett-Packard Ltd.
11120 178 Street
Edmonton, Alberta T5S 1P2
Canada
Telephone: (403) 486-6666
Fax: (403) 489-8764
Latin America
Hewlett-Packard Company
LAHQ Mexico City
Col. Lomas de Virreyes
11000 Mexico D.F.
Mexico
Telephone: (52/5) 326-4000
Fax: (52/5) 202 7718
United Kingdom
Sales and Service
Hewlett-Packard Ltd.
Cain Road
Amen Corner
Bracknell, Berkshire
RG12 1HN
United Kingdom
Telephone: 44 344 360000
18
Main Menu
Product Description
The HP 8935 CDMA Cellular/PCS Base Station Test Set offers full
signal generation and analysis capability and support for cellular
frequency bands and international PCS frequency bands.
You can perform the following CDMA measurements using the
Test Set:
• Signal Quality Measurements
•
•
•
•
Rho (ρ)
Time Offset
Frequency Error
Carrier Feedthrough
• Code Domain Measurements
• Code Domain Power
• Code Domain Timing
• Code Domain Phase
• Average Power
• Channel Power
• Error Vector Magnitude
The Test Set’s CDMA generator also has the following capabilities:
• Reverse Channel Source with Data Buffer
• AWGN (built-in calibrated Eb/No levels)
The Test Set also supports CDMA reference clocks and triggers.
In addition to its CDMA measurements and capabilities, the Test Set
also provides the following analog measurements:
•
•
•
•
•
•
•
•
•
•
•
AC Level
AM Depth
AF Frequency
DC Level
Distortion
Frequency and Frequency Error
Transmitter Power
FM Deviation
Audio Frequency
SINAD
SNR
19
Main Menu
In This Book
• Chapter 1, “Getting Started,” on page 23 familiarizes you with the
front panel controls. It introduces the different types of control fields
that are used to make measurements
• Chapter 2, “Operating Overview,” on page 33 provides general
information about how to change measurement screens and change
control field settings. This chapter also provides some utility
procedures: calibrating channel power, setting a reference, setting
measurement limits, setting a generator/analyzer offset, averaging
measurements, saving and recalling setups, and using USER keys.
• Chapter 3, “Overview of the Test Set’s Built-In Tools,” on page 55
introduces the RFTOOLS program. This program automates some
measurements: cable fault location, swept return loss, swept and
discrete insertion loss, spectrum analyzer self-calibration. The
program also includes utilities for printing and data collection.
Basic operation of the built-in signal strength meter, spectrum
analyzer, oscilloscope, and code domain analyzer is also included in
this chapter.
• Chapter 4, “CDMA Measurements - Screens and Control Fields,” on
page 81 explains the measurements that can be made from these
screens and the fields that control the measurement’s parameters.
CDMA measurements include average power measurements,
channel power measurements, rho measurements (including
frequency error, time offset, and carrier feedthrough), EVM
measurements (including phase error and magnitude error), and
code domain measurements (including timing, phase, and power).
• Chapter 5, “Analog Measurements - Screens and Control Fields,” on
page 115 explains the measurements that can be made from these
screens and the fields that control the measurement’s parameters.
Analog measurements include ac/dc level, AM depth, AF frequency,
distortion, frequency and frequency error, transmitter power, FM
deviation, SINAD, and SNR.
• Chapter 6, “Configuration - Screens and Control Fields,” on page
159 explains the configuration controls for the Test Set.
• Chapter 7, “Connectors,” on page 183 describes the function and
physical attributes of each connector on the Test Set.
• Chapter 8, “Accessories, Manuals, Support,” on page 195 describes
any available upgrades, accessories, training and support for the
Test Set.
• Chapter 9, “Error Messages,” on page 203 provides any available
information about error recovery when messages are displayed.
20
Main Menu
Conventions Used in this Book
Screen names are shown as follows: CODE DOM.
Keys are shown in the following typeface: CDMA Gen. Shifted functions
(labeled in blue above the keys) are accessed by pressing and releasing
the blue Shift key, and then the key below the blue label.
Fields and messages displayed on the CRT are shown in the following
typeface: Input Atten.
The term “Test Set” is used to refer to the HP 8935.
The screens shown in this manual may not exactly match the screens
displayed on the Test Set’s CRT. Some differences may be due to control
field settings, while other differences may be due to instrument
revisions.
Which Document is
Required?
The following documents are part of the HP 8935 document set. Use the
table to help you decide which document you need.
Table 2
Document Navigation
Document
Part Number
Usage
CDMA Application Guide
E6380-90016
Use this manual for basic CDMA measurements and
for getting started with the Test Set.
AMPS Application Guide
E6380-90017
Use this manual for making AMPS base station
measurements.
Reference Guide
E6380-90019
Use this manual for screen and field descriptions and
general operation information about the Test Set.
Programmer’s Guide
E6380-90018
Use this manual to learn HP-IB syntax and for learning
how to program the Test Set.
Assembly Level Repair
Guide
E6380-90015
Use this manual to perform calibration on the Test Set
and for general service information.
21
Main Menu
22
Main Menu
1
Getting Started
•
•
•
•
“Before Connecting a Radio” on page 24
“Changing the Measurement Screen” on page 25
“Changing the Control Fields” on page 26
“Instrument Quick Check” on page 31
23
Main Menu
Getting Started
Before Connecting a Radio
Before Connecting a Radio
NOTE
The RF IN/OUT port should be used for all transmitter
tests when the radio is connected directly to the Test Set.
(All UUT transmitter power measurements are made
through this port). Off-the-air measurements can be made
using the ANT IN port.
CAUTION
Overpower Damage — Refer to the Test Set’s side panel
for maximum input power level at the RF IN/OUT,
DUPLEX OUT, and ANT IN connectors. Exceeding these
levels can cause permanent instrument damage.
24
Chapter 1
Main Menu
Getting Started
Changing the Test Set’s Display
Changing the Test Set’s Display
Changing the Measurement Screen
The measurement screen is changed using the titlebar at the top of the
screen and the cursor-control knob, using the
GENERATOR/ANALYZER keys, or by using the UTILS keys. Rotate
the knob to move the cursor from field to field or to change settings.
Press the knob to make selections (see “Changing the Control Fields” on
page 26 for more information about fields).
Figure 1-1 Using the cursor-control Knob or Screen Keys
Titlebar
Push the knob to
make a selection.
Rotate the knob
to move the
cursor, or change
settings.
USER
Press one of the
GENERATOR/ANALYZER or
UTILS keys for a shortcut to
the measurement or
configuration screens.
SOFTWARE
GENERATOR/ ANALYZER
STATE
k1’
k1
Menu
k2’
Reset
k2
Pause/
CDMA
Gen
RF
Gen
Continue
k3’
CDMA
Anl
Code
Dom
Preset
AF Anl
Scope
Meas
Reset
RF
Anl
Spec
Anl
Hold
Save
DATA ENTRY
k3
Ref Set
Meter
Avg
Incr
10
Incr
Set
Incr
x 10
7
8
Hi limit
E
F
4
5
Recall
9
Enter
k4’
ADRS
k4
Local
Lo Limit
Release
dB
6
GHz
dBm
UTILS
k5
Push to Select
Shift
B
C
1
2
D
%
3
MHz
V
EEX
s
Prev
Printer
Config
Print
A
Out of Lock
0
.
+/-
kHz
mV
Yes
No
ms
mW
On/Off
ppm
W
%D
dB V
Hz
V
I/O
Config
Inst
Config
Volume
Squelch
Cancel
Error
Message
Help
To change the measurement screen
Step 1. Select the titlebar at the top of the screen (placement of the
titlebar may vary slightly on some screens).
Step 2. Select the measurement screen from the list of choices.
OR
Step 1. Press a screen key: CDMA Gen, CDMA Anl, Code Dom, RF Gen, RF Anl,
Spec Anl, AF Anl, Scope, Prev, Inst Config, Help, Printer Config, I/O Config,
Error Message.
AF Anl, Scope, Printer Config, I/O Config, and Error Message
are shifted functions (labeled in blue above a key). You must
press and release the blue Shift key then the key below the blue
label to access the screen (or other function) labeled in blue.
Pressing the Prev key displays the previous screen.
Chapter 1
25
Main Menu
Getting Started
Changing the Test Set’s Display
Changing the Control Fields
There are several types of control fields in the Test Set. This section
describes some of the different types of fields.
Unit-of-Measure Field
Unit-of-measure can be changed to display measurements in different
values or magnitudes. The unit-of-measure field can also be used to
turn a measurement on or off (use the On/Off Yes key).
Figure 1-2 Unit-of-Measure Field
Unit-of-Measure
To change a unit-of-measure field
Step 1. Position the cursor at the unit field on the display.
Step 2. Press a key labeled with a different unit-of-measure
(such as W).
If the new units are valid, the measurement value is displayed
in the unit.
If the new units are not valid, the message Invalid
keystroke. is displayed and the units are not changed.
26
Chapter 1
Main Menu
Getting Started
Changing the Test Set’s Display
Underlined Entry Field
Underlined entry fields provide a choice of two settings (toggle).
Figure 1-3 Underlined Entry Field
Underlined
Entry Field
To Change an underlined entry
Step 1. Position the cursor at the field.
Step 2. Push the cursor-control knob or the
underline under the desired choice.
Enter
key to move the
The underlined setting is immediately activated when
selected.
Chapter 1
27
Main Menu
Getting Started
Changing the Test Set’s Display
One-of-Many Field
One-of-many fields display a list of choices when selected.
Figure 1-4 One-of-Many Field
One-of-Many
Field
Choices:
Chan Pwr
Rho
EVM
Avg Pwr
To make a one-of-many choice
Step 1. Position the cursor at the field.
Step 2. Push the cursor-control knob or the Enter key to display the
choices.
Step 3. Move the cursor through the choices by turning the knob.
Step 4. Push the cursor-control knob or the Enter key to make the
choice.
The choice is immediately activated when selected.
28
Chapter 1
Main Menu
Getting Started
Changing the Test Set’s Display
Numeric-Entry Fields
Values for numeric entry fields can be entered and changed using
various methods, depending on your testing needs.
Figure 1-5 Numeric-Entry Field
Numeric Entry Field
To change a value
Step 1. Position the cursor at the field.
Step 2. Key in the desired number using the DATA ENTRY keys.
Step 3. Press Enter to select the choice.
OR
Step 1. Position the cursor at the field.
Step 2. Push the cursor-control knob (the flashing >> cursor appears).
Step 3. Turn the knob to increment or decrement the value. (The
current increment value may not be appropriate for your
operation. See See “Changing the Increment or Decrement
Setting” on page 42.)
Step 4. Push the cursor-control knob or the
choice.
Enter
key to select the
OR
Step 1. Position the cursor at the field.
Step 2. Push the cursor-control knob to highlight the desired choice.
Step 3. Use the up-arrow or down-arrow keys to increment or
decrement the value.
Chapter 1
29
Main Menu
Getting Started
Changing the Test Set’s Display
Decimal Values
Decimal values are used for most numeric entry fields. The acceptable
entries for decimal values are 0 through 9, , +/-, and EEX.
The +/- key is used for entering negative numbers.
The EEX key is used to enter values in exponential notation. For
example to enter 10-9 you would enter 1, 0, EEX (Shift, +/-), +/-, 9.
Hexadecimal Values
Hexadecimal (Hex) values are used for entering some signaling
parameters. The acceptable entries values are 0 through 9 and A
through F. No unit-of-measure is associated with these values.
Hexadecimal values are either entered from the keypad (A through F
are shifted functions) or for some fields, values are selected from a list
of choices.
30
Chapter 1
Main Menu
Getting Started
How do I Verify that the Test Set is Operating Properly?
How do I Verify that the Test Set is Operating
Properly?
If your Test Set powers-up and displays the CDMA ANALYZER screen,
but you suspect an instrument problem, use the Instrument Quick
Check to verify operation of the basic instrument functions.
If no failure is indicated by this test, but you still suspect a problem,
refer to the “Performance Tests” information in the Assembly Level
Repair Manual.
Instrument Quick Check
Step 1. Set up the quick check:
a. Remove any connected cables (except for AC or DC power).
b. Turn instrument power on (if it is not already on).
c. Press Preset.
d. Press Inst Config and set the RF Display field to Freq.
e. Press CDMA Anl and select the Avg Pwr field, then select Rho
from the Choices: menu.
f. Set the Tune Freq field to 800 MHz.
g. Set the Anl Dir field to Rev.
h. Press CDMA Gen and set the Output Port field to RF Out.
i. Set the RF Gen Freq field to 800 MHz.
j. Set the Amplitude field to −40 dBm
k. Set the Gen Dir. field to Fwd. (The EQ In/Out field is
displayed.)
Step 2. Check the following reading:
a. Rho should be greater than 0.96.
Step 3. Press Spec Anl to access the SPEC ANL screen.
You should see the characteristic CDMA spectrum.
Chapter 1
31
Main Menu
Getting Started
How do I Verify that the Test Set is Operating Properly?
Figure 1-6 CDMA Spectrum
32
Chapter 1
Main Menu
2
Operating Overview
• "Displaying CDMA Measurements" on page 34
• "Displaying Analog Measurements" on page 36
• "Using Channel Numbers to Set Analyzer and Generator
Frequencies" on page 40
• "Calibrating the Channel Power Measurement" on page 41
• "Changing the Increment or Decrement Setting" on page 42
• "Using Measurement Limit Indicators" on page 43
• "Setting A Measurement Reference" on page 45
• "Averaging Measurements" on page 46
• "Setting an RF Generator/Analyzer Offset" on page 47
• "Saving and Recalling Instrument Setups" on page 48
• "Using USER Keys" on page 51
• "Replacing Batteries" on page 53
33
Main Menu
Operating Overview
Displaying CDMA Measurements
Displaying CDMA Measurements
Channel Power, Rho, EVM, Average Power
You can select channel power, rho, EVM, or average power on the
CDMA ANALYZER or CDMA GENERATOR screen as shown in
Figure 2-1.
For more information about these measurements see "CDMA
Measurements" on page 82.
Figure 2-1 Displaying Channel Power, Rho, EVM, or Average
Power
Choices:
Chan Pwr
Rho
EVM
Avg Pwr
Time Offset, Frequency Error, Carrier Feedthrough
When you select Rho, the Time Offset, Frequency Error, and
Carrier Feedthru measurements are displayed. Time offset and
carrier feedthrough are also displayed on the CODE DOM screen along
with frequency offset.
Frequency Offset
Frequency offset is displayed on the CODE DOM screen.
Magnitude Error, Phase Error
When you select EVM, the Magnitude Error and Phase Error
measurements are displayed.
34
Chapter 2
Main Menu
Operating Overview
Displaying CDMA Measurements
Code Domain Measurements (Power, Timing, Phase)
Code domain measurements are displayed on the CODE DOM screen.
To select a code domain measurement, go to the CODE DOM screen
and select a measurement from the Measurement field in the Main
controls menu.
For more information about code domain measurements see "Code
Domain Measurements" on page 89.
Figure 2-2 Selecting Code Domain Measurements
Choices:
Power
Fast Pwr
Timing
Phase
Chapter 2
35
Main Menu
Operating Overview
Displaying Analog Measurements
Displaying Analog Measurements
RF Measurements
Frequency Error, Frequency
RF Frequency Error and RF Frequency are displayed on the RF
ANALYZER, RF GENERATOR, and AF ANALYZER screens.
Figure 2-3 Displaying RF Frequency Error or RF Frequency,
and TX Power
Choices:
Freq Error
Frequency
TX
Power
Transmitter (TX)Power
TX Power is only measured and displayed here when the Input Port
on the RF ANALYZER screen is set to RF In. If Ant (antenna) is
selected, the measurement is replaced by four dashes (- - - -).
You can measure low power levels on the ANT IN port using the
spectrum analyzer.
Refer to the "TX Power Measurement" field on page 120 and the "TX
Pwr Zero" field on page 157 for more information on measuring
transmitter power.
CAUTION
Connecting a signal of >60 mW to the ANT IN (antenna)
port can cause instrument damage (although internal
protection circuits can typically withstand a
short-duration signal of 1 or 2 Watts). If the overpower
circuit is triggered, remove the signal from the ANT IN
port and turn the Test Set off and on to reset it.
36
Chapter 2
Main Menu
Operating Overview
Displaying Analog Measurements
Displaying AF Measurements
FM Deviation, AM Depth, AC Level
The AF Anl In setting determines the AF analyzer’s input and the
measurement displayed in the top-right corner of the measurement
area (see figure 2-4). These measurements are displayed on the RF
GENERATOR, RF ANALYZER, and AF ANALYZER screens.
Table 2-1 lists the measurement displayed for each AF Anl In setting.
Figure 2-4 Displaying FM Deviation, AM Depth, or AC Level
Choices:
FM Demod
AM Demod
SSB Demod
Audio In
Ext Mod
FM Mod
AM Mod
Table 2-1 Measurements Selected with the AF Anl In field
Measurement
AF Anl In Setting
FM Deviation
FM Demod, FM Mod
AM Depth
AM Demod, AM Mod
AC Level
SSB Demod, Audio In, Ext Mod, Audio Out
Chapter 2
37
Main Menu
Operating Overview
Displaying Analog Measurements
SINAD, Distortion, SNR, AF Frequency, DC Level,
These measurements are available on the RF GENERATOR,
RF ANALYZER, and AF ANALYZER screens. See figure 2-5.
Figure 2-5 Displaying SINAD, Distortion, SNR, DC Level, or
AF Frequency
Choices:
SINAD
Distn
SNR
AF Freq
DC Level
The Distortion measurement is only for a 1 kHz tone.
Selecting SNR (Signal/Noise Ratio) turns off any other audio
measurement. For more information on making this measurement, see
the RF Gen Freq field description, on page 148.
38
Chapter 2
Main Menu
Operating Overview
Displaying Analog Measurements
Displaying Analog Measurement Results on a Meter Scale
Figure 2-6 Displaying the Meter Scale
Unit-of -Measure
Fields
Meters:
On/Off
Lo End
Hi End
Intervals
Measurement results can be displayed on a meter scale. The digital
numeric value is still displayed (but smaller) under the meter scale.
To display the meter scale
Step 1. Move the cursor to the unit-of-measure field for the
measurement you want displayed on the meter.
Step 2. Press and release the blue Shift key, then the Incr Set key to
access the meter function.
Step 3. Select On/Off from the Meters: menu (or press the
On/Off
key).
To set the meter’s end points and scale intervals
Step 1. Use the knob to select the unit-of-measure field for the
measurement you want displayed on the meter.
Step 2. Press and release the blue Shift key, then the Incr Set key to
access the meter function.
Step 3. Select Hi End, Lo End, or Interval from the Meters: menu
and enter the value for your selection, then press the Enter key.
Step 4. Repeat steps 2 and 3 until you have set the desired
parameters for the meter’s scale.
Chapter 2
39
Main Menu
Operating Overview
Using Channel Numbers to Set Analyzer and Generator Frequencies
Using Channel Numbers to Set Analyzer and Generator
Frequencies
RF analyzer and RF generator frequencies can be entered by channel
number (the default setting) or by discrete frequencies (in MHz). The
RF Display field on the INSTRUMENT CONFIGURE screen controls
which way frequencies are entered. This screen is accessed by pressing
the Inst Config key.
If the RF Display field is set to Chan for channel tuning, you also need
to set the RF Chan Std field to indicate the standard for your base
station (such as North American PCS). This automatically sets the
correct frequency offset needed to generate reverse channel signals and
analyze forward channel signals for base stations.
If you do not know the channel number of your base station, but know
the transmit and receive frequencies, set the RF Display field to Freq.
You can then enter these frequencies directly for the RF generator and
RF analyzer during tests.
Figure 2-7 Configuration to Use Channel Numbers for RF
Generator and Analyzer Settings
Set the RF Display field to Chan
to turn on channel tuning.
Select the RF Chan Std field to
display a list of system types.....
..and then select the channel standard
for testing your base stations.
40
Chapter 2
Main Menu
Operating Overview
Calibrating the Channel Power Measurement
Calibrating the Channel Power Measurement
To calibrate a channel power measurement at the RF IN/OUT port
using the internal CDMA generator
Step 1. Go to the CDMA ANALYZER screen and choose the Chan Pwr
measurement.
Step 2. Set the Tune Freq field (or RF Channel field) to the center
frequency of your CDMA signal.
Step 3. Select the Chn Pwr Cal field and wait until the calibration is
complete.
Chapter 2
41
Main Menu
Operating Overview
Changing the Increment or Decrement Setting
Changing the Increment or Decrement Setting
Specifying An Increment Value for the Arrow Keys or Knob
The Incr Set key is used to assign a specific increment value. The
increment value may use different units than the field you are
incrementing/decrementing. For instance; if the RF generator’s
Amplitude setting is displayed in dBµV, you could increment in units
of dB or mV.
To change the increment/decrement value
Step 1. Move the cursor to the numeric entry field to be changed.
Step 2. Press Incr Set, and enter the desired incremental value and
unit-of-measure using the DATA ENTRY keys.
Step 3. Use the down-arrow and up-arrow keys
or cursor
control knob to increment the field’s value. The field’s value
changes by the value you set for each key press or knob click.
Using the Factor of 10 Increment/Decrement Keys
The Incr × 10 and Incr ÷ 10 keys change the increment/decrement value by a
factor of 10.
For example, if you set the increment for Tune Freq to 10 MHz for
every click of the knob or push of the down-arrow or up-arrow keys,
pushing Incr ×10 changes the increment value to 100 MHz.
42
Chapter 2
Main Menu
Operating Overview
Using Measurement Limit Indicators
Using Measurement Limit Indicators
The Lo Limit and Hi Limit functions are used to define a measurement
“window.” You can set a high limit, a low limit, or both. When limits are
assigned, Lo, Hi or both are indicated on the screen.
A measurement that goes above or below the defined limits causes
three things to happen:
1. A message appears at the top of the screen indicating a limit was
exceeded.
2. The Lo or Hi indicator flashes.
3. The beeper beeps (if it is has been enabled in the INSTRUMENT
CONFIGURE screen).
Limits are helpful when you can’t watch the Test Set’s display while
you are making an adjustment on the equipment you are testing or
repairing. They are also a convenient way of alerting you to long-term
measurement drift.
To set high and low limits
Step 1. Position the cursor in front of the unit-of-measure for the
measurement for which you are setting limits.
Step 2. Press and release the Shift key, then the down-arrow key to
access the Lo Limit function, and enter the measurement’s
low-limit value and its unit-of-measure.1
Step 3. Press and release the Shift key, then the up-arrow key to access
the Hi Limit function, and enter the measurement’s high-limit
value and its unit-of-measure.2
1. The fundamental unit for the limits does not have to be the same as the measurement’s units. For instance; when measuring AC Level in Volts, you can set
high and low limits in units of dBm.
Chapter 2
43
Main Menu
Operating Overview
Using Measurement Limit Indicators
To reset or remove limits
To reset a limit that has been exceeded
Step 1. Position the cursor in front of the measurement’s
unit-of-measure.
Step 2. Press and release the Shift key, then the down-arrow (or
up-arrow key) to access the Lo Limit (or Hi Limit) function.
Step 3. Press Enter or Shift then Hold to access the Meas Reset function.
To remove a limit
Step 1. Position the cursor in front of the unit-of-measure for the
assigned limit.
Step 2. Press and release the Shift key, then the down-arrow (or
up-arrow key) to access the Lo Limit (or Hi Limit) function, then
press the On/Off key.
44
Chapter 2
Main Menu
Operating Overview
Setting A Measurement Reference
Setting A Measurement Reference
The reference set (Ref Set) function establishes a measurement
reference point. This allows you to make a direct comparison between
two measurement results, or between a measurement standard and the
actual measurement results.
Depending on the type of measurement, referenced measurements are
displayed in one of two ways:
1. Displayed value = Measurement − Reference. The difference between
the measured value and the reference value is displayed.
or
2. Displayed value = Measurement ÷ Reference. A ratio of the measured
value to the reference value is displayed. This ratio is expressed in
dB.
To set a reference
Step 1. Position the cursor in front of the unit-of-measure for the
measurement you want to set the reference for.
Step 2. Press and release the Shift key, then the Incr ÷10 key to access
the Ref Set function.
Step 3. Enter a reference value, then press Enter. (To use the currently
measured value as a reference, just press Enter.)
Step 4. The Reference indicator shows that an internal reference has
been set.
Step 5. To turn the reference off press and release the Shift key, then
the Incr ÷10 key to access the Ref Set function, and then press the
On/Off key.
Chapter 2
45
Main Menu
Operating Overview
Averaging Measurements
Averaging Measurements
The Avg (average) function allows you to display the average value of a
number of measurements. You enter the number of measurement
samples used to calculate and display the measurement average. This
dampens the effects of rapidly changing measurements, providing a
more usable measurement display.
To use measurement averaging
Step 1. Position the cursor in front of the measurement’s
unit-of-measure.
Step 2. Press and release the Shift key, then the Incr ×10 key to access
the Avg function.
Step 3. Enter the desired number of measurement samples to be used
for calculating the average, then press the knob or the Enter
key.
or
Press On/Off to use the currently-displayed number of samples.
Step 4. To turn averaging off, position the cursor in front of the
unit-of-measure and press and release the Shift key, then the
Incr ×10 key to access the Avg function, then press the On/Off key.
How the Test Set Averages Measurements
When the averaging function is first enabled, a numeric average is
calculated and displayed each time a measurement is made. This
continues until the specified number of samples is reached. From that
point on, the averaging function performs an exponential filtering
operation that mimics an RC filter.
Because of the exponential response, any large measurement changes
result in a displayed value that ramps up or down to the actual
measured value.
A measurement reset clears the measurement history for all
measurements and starts the averaging process over. (Press and
release the Shift key then the Hold key (Meas Reset) to reset the
measurement.)
46
Chapter 2
Main Menu
Operating Overview
Setting an RF Generator/Analyzer Offset
Setting an RF Generator/Analyzer Offset
You can set a fixed frequency offset between the RF generator and the
RF analyzer. This feature is convenient for testing radios with a fixed
transmit/receive frequency offset.
To set an RF Offset
Step 1. Go to the INSTRUMENT CONFIGURE screen.
Step 2. Set the RF Display field to Freq.
Step 3. Set the RF Offset field to On.
Step 4. Select the (Gen)-(Anl) field and enter the frequency offset
value.
Step 5. Go to the RF GENERATOR screen.
Step 6. Select the RF Gen Freq field, and rotate the cursor control
knob to vary the RF generator’s frequency.
Step 7. Go to the RF ANALYZER screen. Notice that the Tune Freq
value changes to maintain the offset between the generator
and the analyzer. (You can use the Prev key to switch between
the generator and analyzer screens.)
Chapter 2
47
Main Menu
Operating Overview
Saving and Recalling Instrument Setups
Saving and Recalling Instrument Setups
The save and recall functions allow you to store different instrument
setups and retrieve them later, eliminating the task of re-configuring
the Test Set.
The number of available save registers depends on how many changes
were made to the base instrument setup for each save. (See "BASE
Settings" on page 50.) The smaller the number of changes, the greater
the number of save registers that can be used (typically over 200).
Save/Recall register settings can be saved to internal RAM or to a PC
card. Saving registers to a PC card allows you to “back up” the settings
in case you need to clear them from memory for running large
programs, or when a firmware upgrade is performed (see "Memory
Considerations" on page 50).
To save an instrument setup
Step 1. Go to the I/O CONFIGURE screen.
Step 2. Select the storage media using the Save/Recall field. (The
default is internal memory.)
Step 3. Make any changes to the instrument that you want to save in
a register.
Step 4. Press and release the Shift key then the Recall key to access the
Save function.
Step 5. Use the DATA ENTRY keys or the Save: menu to enter the
register’s name.
To recall an instrument setup
Step 1. Select the I/O CONFIGURE screen.
Step 2. Select the media to recall settings from using the
Save/Recall field. The default is internal memory.
Step 3. Press Recall.
Step 4. Use the knob to select the desired setup to be recalled from the
Recall menu.
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Chapter 2
Main Menu
Operating Overview
Saving and Recalling Instrument Setups
To remove (clear) an individual save register
Step 1. Specify where the register is stored using the Save/Recall
field on the I/O CONFIGURE screen.
Step 2. Press Recall.
Step 3. Use the knob to position the cursor in front of the register to
be removed from the Recall menu at the bottom-right of the
screen. The register name and percentage of memory occupied
by that register are indicated at the top of the screen.
Step 4. Press Yes On/Off. A prompt appears, asking if you want to delete
the save register.
Step 5. Press Yes On/Off.
To clear all save registers
Step 1. Press Recall.
Step 2. Use the knob to position the cursor in front of the *Clr All*
entry in the Recall menu at the bottom-right of the screen.
Step 3. Press the knob or press Enter. A prompt appears at the top of
the screen to verify that you want to clear all registers.
Step 4. Press Yes On/Off.
Register Names
You can use any number, letter, or combination of numbers and letters
as a name for storing instrument settings. For instance; if you want to
save a setup for testing a “Vulcan7” radio, you can save the setting as
“VULCAN7”.
Two register names are reserved for special purposes: POWERON and
BASE.
POWERON Settings
When the Test Set is turned on, it uses a set of instrument setup
parameters specified at the time of manufacture. You can have the
instrument power up in a different state by making the desired changes
to the original settings, and then saving them using the name
POWERON.
The next time the instrument is turned on, the instrument returns to
the state present when you saved the POWERON setting. For instance;
if the SCOPE screen was displayed when POWERON was saved, it is
the screen that is displayed when you turn the instrument on.
Chapter 2
49
Main Menu
Operating Overview
Saving and Recalling Instrument Setups
BASE Settings
The BASE register contains any field settings the user has saved that
are different from the instrument preset state. It establishes a
reference point for all future saves. If a base is not saved, the preset
state is used as the reference.
When you save an instrument setup, the new setup is compared to the
base settings, and any differences are stored under the register name
you supply. Because only differences are stored, a much larger number
of instrument setups can be saved than if the contents of every field was
saved.
When you recall an instrument setting, every field is reset to the base
settings. The saved settings are then used to re-establish the desired
instrument setup.
You can define your own base setting. If your desired settings are very
different from the preset values, you may want to change the BASE
register. This will decrease the amount of memory used to save each
setup, and allow you to save many more setups.
CAUTION
Since each save/recall register only contains the
differences between the setup being saved and the present
base register settings, changing the base settings causes
all other saved setups to be erased from memory
(including the POWERON setting if one has been saved).
Unless you consistently change the same fields to the
same value each time you use the instrument, you should
avoid creating your own BASE settings.
Memory Considerations
When the Save/Recall field of the I/O CONFIGURE screen is set to
Internal, programs are saved to the same non-volatile RAM used to
create RAM disk(s) and run IBASIC programs. By saving a large
number of instrument setups, you reduce the amount of RAM available
to run programs. If you get a “memory overflow” message while trying
to load a program, you must clear one or more save/recall registers to
free RAM space.
Instrument Hardware Changes
Recalling a saved register that uses a hardware option that has been
removed results in unspecified operation. Re-install the needed option
before attempting to recall the associated register(s).
50
Chapter 2
Main Menu
Operating Overview
Using USER Keys
Using USER Keys
You can use user keys to move quickly between fields on the same
screen, and to access fields that are not normally available on the
screen you are using.
Local user keys are used to move between settings on the screen that is
displayed. Five local user keys are available for each screen: k1, k2, k3, k4,
and k5. When the user key is pressed, the cursor instantly moves to, and
selects, the assigned field; eliminating the need to turn and push the
knob. Using these keys removes any other local user keys you may have
set up.
Global user keys are used to access settings that are not available on
the current screen. Three global user keys are available: k1’, k2’, and k3’.
(Use the Shift key to access the global user keys)
Using Pre-Defined USER Keys
To Use the Pre-Assigned Local USER Keys
Step 1. Press and release the Shift key, the k4 key; then the Enter key.
The numbers 1 through 5 appear in front of various fields.
(See figure 2-8.)
Step 2. Press the USER keys (k1 to k5) and notice how the cursor
immediately moves to the corresponding field.
Step 3. To stop using the default user keys, press and release the Shift
key, then the k5 key to access the Release function; then press
the Enter key.
Figure 2-8 An Example of Pre-Assigned Local User Keys
USER
k1’
k1
k2’
k2
k3’
k3
Assign
k4
Release
k5
Chapter 2
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Main Menu
Operating Overview
Using USER Keys
Assigning and Releasing USER Keys
When defining user keys, the Assign function is used to create key
definitions; the Release function removes the definitions. Re-assigning a
user key to a different field automatically releases it from its previous
setting.
To assign local user keys
Step 1. Move the cursor to the field that you want to assign to a local
user key.
Step 2. Press and release the Shift key, then the k4 key to access the
Assign function. Then press a USER key (k1-k5). The user key
number appears in front of the field you assigned it to. (Since
the cursor is at the newly assigned field, the USER key
number is hidden until the cursor is moved.)
To release local user keys
Step 1. Display the screen containing the user key assignment to be
removed.
Step 2. Press and release the Shift key, then the k5 key to access the
Release function; then press the USER key (k1- k5).
To assign global user keys
Step 1. Move the cursor to the field you want to assign a global USER
key to.
Step 2. Press and release the Shift key, then the k4 key to access the
Assign function. Then press Shift and a USER key (k1’- k3’).
Unlike a local user key, the user key number does not appear
at this field; instead, a prompt appears at the top of the screen
confirming the key assignment.
To release global user keys
Step 1. Move the cursor to the field with the global user key assigned
to it.
Step 2. Press and release the Shift key, then the k5 key to access the
Release function. Then press Shift and the user key to be
released.
52
Chapter 2
Main Menu
Operating Overview
Replacing Batteries
Replacing Batteries
There are two methods by which the Test Set backs up its RAM. One is
a set of two AA batteries mounted behind the rear panel of the Test Set.
You must periodically change these batteries. The second method of
RAM backup is an internal battery. It is not user serviceable.
CAUTION
Failure to take prompt action may result in loss of RAM
data including IBASIC programs and SAVE / RECALL
states stored in the RAM.
NOTE
Do not use rechargeable batteries.
To change the AA batteries, use the following procedure:
1. Turn off power and unplug the Test Set.
2. Remove the six screws in the rear panel using a TX-15 TORX (R)
screwdriver.
3. Remove the rear cover.
4. Replace the AA batteries.
5. Replace and reconnect the rear panel. Dispose of used batteries
properly.
Chapter 2
53
Main Menu
Operating Overview
Replacing Batteries
54
Chapter 2
Main Menu
3
Overview of the Test Set’s
Built-In Tools
• "Using RF Tools Program" on page 56
• "Using the Code Domain Analyzer" on page 67
• "Using the Spectrum Analyzer" on page 68
• "Using the Voltmeter and Audio Frequency Counter" on page 70
• "Using the Oscilloscope (Scope)" on page 71
• "Securing a Test Procedure" on page 75
• "Clearing RAM" on page 76
• "Using the LISTOPTS (list options) Program" on page 77
• "Using the DEMO Program" on page 78
• "Using the ST_PLT (store or plot) Program" on page 79
55
Main Menu
Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Using RF Tools Program
The RF Tools Program resides in the Test Set’s ROM. The following
tests and utility programs are available in this program.
See Figure 3-1 on page 57 for instructions on loading the RFTOOLS
program.
To run the tests or utilities in the RFTOOLS program:
1. Choose the test or utility you want to run from the list of choices.
2. Fill in the parameters that are displayed for each test.
The following tests and utility programs are available in this program.
• "Swept Gain" on page 58
• "Discrete Freq Insertion Loss" on page 59
• "Swept Insertion Loss" on page 59
• "Swept Return Loss" on page 60
• "Cable Fault" on page 62
• "Replot Data Files" on page 65
• "Transfer Stored Data" on page 65
• "SA (spectrum analyzer) Self Calibration ON/OFF" on page 65
• "Catalog PC (Memory) Card" on page 66
• "Set Up Printer/Data Collection" on page 66
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Chapter 3
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Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Figure 3-1
Loading and Running RF Tools
1
Press Menu to display the Software Menu
screen.
2
Position the cursor at Select Procedure
Location: and select it.
3
Position the cursor at ROM and select it.
4
Position the cursor at Select Procedure
Filename: and select it.
ROM
5
Position the cursor at Choices: and
select RFTOOLS.
6
Position the cursor at Run Test and
select it. The Software is now loading.
Loading Time:
First time:
approximately
three minutes.
RFTOOLS
XXXXXX
YYYYYY
After first time:
approximately
15 seconds.
Chapter 3
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Main Menu
Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Swept Gain
This test measures the gain of a device by sweeping it over the specified
frequency range. In the menu for this test, you can enter the frequency
range over which the device is to be swept, the level into the device from
the DUPLEX OUT port, and the maximum expected gain.
This test requires two 6-dB pads (attenuators). The pads are put on the
Test Set’s ANT IN and DUPLEX OUT ports to reduce impedance
mismatch error at these ports. A reference level is obtained by
connecting a short calibration cable between the pads on the DUPLEX
OUT and ANT IN ports. Next, the test device is added between the
calibration cable and one of the pads, and a measurement is made of the
additional gain from the reference level. The trace of the device gain
over the frequency range swept is displayed. The maximum gain is also
displayed on the screen.
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Chapter 3
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Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Discrete Freq Insertion Loss
This test measures the loss of a cable or device at a specified frequency.
This test is the most accurate method for measuring insertion loss. In
the menu for this test, you can enter the discrete frequency and signal
level at which the measurement will be made.
This test requires two 6-dB pads. The pads are put on the ANT IN and
DUPLEX OUT ports on the Test Set to reduce impedance mismatch
error at these ports. A reference level is obtained by connecting a short
calibration cable between the pads on the DUPLEX OUT and ANT IN
ports. Next, the test cable or device is added between the calibration
cable and one of the pads, and a measurement is made of the addition
loss from the reference level. The insertion loss at the specified
frequency is displayed on the screen.
NOTE
The insertion loss at the specified frequency is displayed twice. The
second display is enlarged for easier reading.
Swept Insertion Loss
This test measures the loss of a cable or device by sweeping it over the
specified frequency range. In the menu for this test, you can enter the
frequency range over which the cable is to be swept.
This test requires two 6-dB pads. The pads are put on the ANT IN and
DUPLEX OUT ports on the Test Set to reduce impedance mismatch
error at these ports. A reference level is obtained by connecting a short
calibration cable between the pads on the DUPLEX OUT an ANT IN
ports. Next, the test cable or device is added between the calibration
cable and one of the pads, and a measurement is made of the addition
loss from the reference level. The trace of the cable loss over the
frequency range swept is displayed. The average loss is also displayed
on the screen.
Chapter 3
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Main Menu
Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Swept Return Loss
This test radiates a test signal when testing antennas or cables with
antennas attached to them. Verify that the level and frequency span
used for the test cannot result in interference to other nearby antennas.
To minimize interference when running the program, set the power
level at the DUPLEX OUT port to the minimum value needed for good
measurement resolution. Set the frequency range carefully.
This test measures the return loss of a cable or device in the swept
mode. A SWR bridge and two 6 dB pads are connected to the Test Set.
The pads are used to reduce impedance mismatch errors between the
SWR bridge and the DUPLEX OUT and ANT IN ports on the Test Set.
You will be prompted at the start of the test to enter the start and stop
frequencies. A reference level is measured first with a short or open on
the DUT port of the SWR bridge. Then the return loss is measured with
the cable or antenna-under-test. The trace showing return loss over the
frequency band selected is displayed on the screen. Measured values for
best and worst case return loss are printed at the top of the screen.
VSWR can be calculated from the return loss.
The following formula can be used to determine the VSWR from the
return loss:
VSWR
– RL
----------
1 + 10 20
VSWR = ----------------------– RL
1 – 10
---------20
VSWR is sometimes stated as a ratio. For example: 1.2:1 or “one point
two to one” VSWR. The first number in the ratio is calculated from the
formula above. The second number in the ratio is always one. Table 3-1
and Table 3-2 contain some of the values from this calculation.
Table 3-1
Return Loss (0 to 20 dB) to VSWR
Return Loss (dB)
0
VSWR
∞
2
4
6
8
10
12
14
16
18
20
8.7
4.4
3.0
2.3
1.92
1.67
1.50
1.38
1.29
1.22
Table 3-2
Return Loss (20 to 40 dB) to VSWR
Return Loss (dB)
20
22
24
26
28
30
32
34
36
38
40
VSWR
1.22
1.17
1.13
1.11
1.08
1.07
1.05
1.04
1.03
1.03
1.02
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Chapter 3
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Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Estimating Antenna Return Loss
If you are measuring the return loss of an antenna connected to the end
of a known good feed line, you can determine the approximate return
loss of the antenna by subtracting twice the line loss. For example, if
you measure a return loss of 24 dB and the line is known to have 2 dB
loss, the estimated return loss of the antenna is 20 dB (since there is a
total of 4 dB of loss as the signal is sent to the SWR bridge and reflected
back to the Test Set). This estimate is in error if the coaxial line and
connectors do not have a return loss somewhat greater than 24 dB.
Chapter 3
61
Main Menu
Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Cable Fault
NOTE
Test Signal Can Cause Interference
When testing cables attached to antennas, test signals will be radiated.
Verify that the signal used for the test cannot result in interference to
another antenna.
This test operates over a wide frequency band. The test will always
operate with a center frequency of 505 MHz. The frequency span
however will be determined by the length of the cable measured. Longer
cables will use a narrower frequency span. The frequency span equals
990 MHz for cables less than 50 feet long and gets narrower as the
cable length increases. It is always safe to assume that the frequency
span is less than or equal to 990 MHz.
This test displays the return loss of a transmission line as a function of
the distance down the line. A frequency-swept signal from the DUPLEX
OUT port is applied through a resistive power divider to the
cable-under-test. Signals reflected from faults in the cable are combined
with the DUPLEX OUT signal in the power divider and applied to the
ANT IN port. The changing interference of the forward and reflected
signals, over the swept frequency band, contains information about the
distance to one or more faults. The software uses a Fast Fourier
Transform (FFT) to convert the frequency domain into the distance
domain. The distance displayed on the Test Set’s CRT is the physical
distance to the fault with correction for the velocity factor of the cable.
Cable Fault Performance
Measurements of the cable fault location can typically be made up to
500 feet on low-loss cables and 300 feet on higher-loss cables.
Resolution of the fault location is approximately 0.4 feet for cable
lengths up to 50 feet and then linearly increases to 4 feet for a 500 foot
cable.
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Chapter 3
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Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Selecting Cable Type
In the menu for this test, you can enter the following information:
• Cable length
• Cable length units
• Pressing the knob toggles the selection between feet and meters.
• Cable class
• Pressing the knob allows selection of Heliax, RG, and custom
options.
• The next menu varies depending on the selection for cable class:
• If Custom is selected, you can enter the cable’s velocity of
propagation constant and attenuation per 100 feet (or meters).
The propagation velocity must be a value between 0 and 1.
• If RG is selected, you can enter the cable type with the example
[RG 58/U = 58]. You must enter a value between 0 and 1000.
• If Heliax is selected, you can enter the cable type. A list of
choices (foam, air, and flex of varying thickness) is displayed. Use
the knob to select the desired cable type.
• Press k1 (or select Begin Test) when all the appropriate entries
have been made.
• Connect the cables as instructed, and press k1 (Proceed).
Velocity factors and attenuation. Cables that use polyethylene
dielectric typically have a propagation velocity of 0.66, cables that use a
teflon dielectric typically have a propagation velocity of 0.70. If the
cable attenuation is unknown, enter 0 dB per 100 feet (or meters).
Entering 0 dB/100 will produce return loss values lower than actual,
but fault distance can be accurately detected.
Chapter 3
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Main Menu
Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Typical cable fault return loss measurements. Return loss is a
ratio of input power to reflected power. For example, if 100 Watts was
applied to a cable and 10 Watts was returned, the return loss is 10 dB
(10 log (100/10)). In the same example, if 1 Watt was returned, the
return loss is 20 dB (10 log (100/1)). Typical return loss measurements
for the cable loss test are listed below:
• Open-Circuit Cable = 0 dB
• Short-Circuit Cable = 0 dB
• 50-Ohm Terminated Cable = 20 to 30 dB
• Antenna = 10 to 20 dB
Return loss measurements below 25 dB should be considered
excellent. For best results, the cable output should be terminated in
50 ohms.
Entering Cable Length
The greatest accuracy is obtained when you enter a cable length
slightly greater than the actual cable length, considering length
uncertainty. If you are not sure of the cable length, enter a value 1.5
times the estimated length. Depending on the return loss of the
antenna or device at the end of the cable, you may see a high relative
mismatch displayed at the actual length of the cable.
64
Chapter 3
Main Menu
Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Replot Data Files
This utility allows you to easily retrieve and display plots which were
previously stored on an SRAM PC card. One or two plots may be
displayed at one time.
No measurements are performed.
Transfer Stored Data
This utility may be used to easily transfer data collection files (test
results) from an SRAM PC card over the serial or HP-IB port. You do
not need to write an IBASIC program. No measurements are
performed.
SA (spectrum analyzer) Self Calibration ON/OFF
This test allows you to check the status of the Test Set’s spectrum
analyzer, and change the status if you desire.
The RFTOOLS program uses the Test Set’s internal spectrum analyzer
for making network analyzer measurements. The internal spectrum
analyzer performs an automatic self calibration every 5 minutes. This
automatic self calibration insures that the spectrum analyzer operates
within specified limits regardless of the operating temperature.
However, this self calibration can introduce instability in spectrum
analyzer output after the Test Set is operating at a constant
temperature (after approximately 30 minutes).
Each RFTOOLS test includes two parts; calibration and measurement.
If the spectrum analyzer performs a self calibration between the
calibration and measurement of the RFTOOLS test, the spectrum
analyzer automatic self calibration instability will increase RFTOOLS
test measurement error. To avoid this problem, you may use this test to
turn off the spectrum analyzer self calibration. This self calibration
should only be turned off after the unit has reached a constant
powered-on operating temperature (approximately 30 minutes after
power-on). By turning the self calibration off, the measurement
accuracy and stability of RFTOOLS tests will improve.
Chapter 3
65
Main Menu
Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Catalog PC (Memory) Card
This utility lists all the files contained on the PC card. The PC card that
you want to catalog must be inserted prior to selecting this test.
• LIF file types are denoted by the following prefixes and suffixes:
• c prefix denotes a program code file
• l prefix denotes a library file
• p prefix denotes a procedure file
• _d suffix denotes a data file
• _p suffix denotes a plot file
• DOS file types are denoted by the following suffixes:
• .PGM suffix denotes a program code file
• .LIB suffix denotes a library file
• .PRC suffix denotes a procedure file
• .DAT suffix denotes a data file
• .PLT suffix denotes a plot file
Set Up Printer/Data Collection
This utility allows you to collect measurement data using a printer or a
PCMCIA card. The following table shows the parameters that can be
set using this utility. These parameters can also be found on the
PRINTER CONFIGURE screen and the I/O CONFIGURE screen.
Table 3-3
Parameters for Set Up Printer and Data Collection
• Data Collection
• Off
• Serial 9
•
•
•
•
•
Serial Baud
Parity
Data Length
Stop Length
Flow Control
• None
• Xon/Xoff
• Hardware
• PCMCIA
• Printer
Configuration
• Printer
• Off
• Serial 9
•
•
•
•
•
Serial Baud
Parity
Data Length
Stop Length
Flow Control
• Lines/Page
• Form feed at
start of page
• Form feed at
end of page
• HPIB Address
• Output
Heading 1
• Output
Heading 2
• None
• Xon/Xoff
• Hardware
• Parallel 15
• HPIB 701
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Chapter 3
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Overview of the Test Set’s Built-In Tools
Using the Code Domain Analyzer
Using the Code Domain Analyzer
The code domain analyzer graphically displays the power, phase, and
timing of the CDMA signal’s 64 Walsh channels. It is a correlated
measurement, requiring an external timing signal, such as the even
second clock or the 16 × chip (19.6608 MHz) clock, to initiate a valid
measurement.
Selecting the Code Domain Analyzer’s Controls Menus
Several levels of menus are used to access the various controls
associated with the code domain analyzer. "Control Fields for CDMA
Measurements" on page 93 provides a description for each field on the
code domain analyzer’s menus. See "CDMA Measurements" on page 82
and the HP 8935 CDMA Base Station Tests Applications Guide for more
information about code domain measurements.
Figure 3-2
Code Domain Analyzer Menus
Chapter 3
67
Main Menu
Overview of the Test Set’s Built-In Tools
Using the Spectrum Analyzer
Using the Spectrum Analyzer
Automatic Calibration
During operation, the spectrum analyzer pauses for approximately
2 seconds every 5 minutes to recalibrate itself. This does not affect the
accuracy of displayed measurements, but does cause a brief
interruption of the displayed information during the process.
Setting Resolution Bandwidth and Sweep Rate
The resolution bandwidth and sweep rate are determined by the span
setting, and cannot be set independently.
These settings are listed in the following table.
Table 3-4
Relationship Between Span, Resolution Bandwidth, and Sweep Rate
Span
Resolution BW
(kHz)
Sweep Rate
<50 kHz
0.3
28.6 kHz/second
<200 kHz
1.0
329.0 kHz/second
<1.5 MHz
3.0
3.0 MHz/second
<3 MHz
30.0
21.4 MHz/second
<18 MHz
30.0
36.3 MHz/second
<200 MHz
300.0
257.0 MHz/second
1 GHz
300.0
1.0 GHz/second
68
Chapter 3
Main Menu
Overview of the Test Set’s Built-In Tools
Using the Spectrum Analyzer
Selecting the Spectrum Analyzer’s Controls Menus
Several levels of menus are used to access the various controls
associated with the spectrum analyzer (see "Spectrum Analyzer
Controls Menus" on page 69).
"Control Fields for Analog Measurements" on page 123 provides a
description for each field on the spectrum analyzer’s menus.
Figure 3-3
Spectrum Analyzer Controls Menus
Chapter 3
69
Main Menu
Overview of the Test Set’s Built-In Tools
Using the Voltmeter and Audio Frequency Counter
Using the Voltmeter and Audio Frequency Counter
The voltmeter can be used to measure ac and dc voltages. The input to
the voltmeter is determined by the AF Anl In field on the AF
ANALYZER screen.
To measure external voltages:
1. Select the AF ANALYZER screen.
2. Set the AF Anl In field to Audio In.
3. Set the Audio In Lo field to match the source you are measuring
(600 ohm impedance, floating output amplifier, ground referenced
voltage). See the "Audio In Lo" field on page 127 for more
information.
4. Connect the signal to be measured to the AUDIO IN connector(s).
The AUDIO IN HI connector can be used alone as long as the Audio
In Lo field is set to Gnd. The AUDIO IN LO connector must also be
used if the Audio In Lo field is set to 600 to Hi or Float.
The ac level is displayed. See Figure 3-4 .
5. Select the lower-right measurement display field. See Figure 3-4 .
• Select DC Level to display the dc level.
• Select AF Freq to display the audio frequency.
Figure 3-4
Measuring AC and DC Voltages
AC Level
Set to
DC Level or
AF Freq.
Set to
Audio In.
Set to match
source.
70
Chapter 3
Main Menu
Overview of the Test Set’s Built-In Tools
Using the Oscilloscope (Scope)
Using the Oscilloscope (Scope)
The built-in 50 kHz oscilloscope provides
• multiple triggering formats (internal and external)
• single-shot and pre-trigger viewing for single events
• full marker capability with automatic level and time readout
Time/division, volts/division and vertical offset are displayed and can be
changed using the front-panel knob.
Input to the oscilloscope is provided from various sources including
direct inputs to the AUDIO IN (HI and LO) and ANALOG
MODULATION IN connectors. Oscilloscope functions are accessed from
the AF ANALYZER and SCOPE screens.
Figure 3-5
FM Demod
AM Demod
Inputs and Filters for the Oscilloscope
Controlled by
AF Anl In
field
Input
SSB Demod
Audio In connector
Controlled by
Scope To
field
Filters
Ext Mod connector
De-emp
FM Mod
AM Mod
Notch
Audio Out
Chapter 3
To
Scope
To
Scope Monitor
Output connector
71
Main Menu
Overview of the Test Set’s Built-In Tools
Using the Oscilloscope (Scope)
Selecting the Oscilloscope’s Input
Step 1. Press Shift, then
screen.
RF Anl (AF Anl)
to select the AF ANALYZER
Step 2. Select the AF Anl In field. A list of choices appears.
Step 3. Select the desired input to the scope:
• FM Demod for FM demodulated audio from input signals connected
to the RF IN/OUT or ANT IN connectors.
• AM Demod for AM demodulated audio from input signals connected
to the RF IN/OUT or ANT IN connectors.
• SSB Demod for SSB demodulated audio from input signals
connected to the RF IN/OUT or ANT IN connectors.
• Audio In for a signal connected to the AUDIO IN connector.
• Ext Mod for a signal connected to the ANALOG MODULATION IN
connector.
• FM Mod for the FM modulated audio from the RF generator section.
• AM Mod for the AM modulated audio from the RF generator section.
• Audio Out for the signal present at the SCOPE MONITOR
OUTPUT connector.
The input to the oscilloscope is displayed on the SCOPE screen.
Selecting the Oscilloscope’s Filters
Step 1. Press Shift, then RF Anl (AF Anl) to select the AF ANALYZER
screen.
Step 2. Select the Scope To field. A list of choices should appear.
Step 3. Select the desired filtering for the signal:
• Input if you want no filtering (dc coupled)
• Filters to route the audio to the oscilloscope after passing through
Filters 1 and 2 (ac coupled).
• De-emp to route the audio to the oscilloscope after passing through
Filters 1 and 2, and the de-emphasis circuitry (ac coupled).
• Notch to route the audio to the oscilloscope after passing through
Filters #1 and #2, the de-emphasis circuitry, and notch circuitry (ac
coupled).
72
Chapter 3
Main Menu
Overview of the Test Set’s Built-In Tools
Using the Oscilloscope (Scope)
Triggering the Oscilloscope
You can control following triggering features of the oscilloscope:
• Trigger external or internal
• Automated or normal triggering
• Continuous or single shot triggering
• Trigger level
• Trigger delay
The oscilloscope is triggered using the Trigger menu. Select this menu
with the following procedure:
Step 1. Press Shift, then
Spec Anl (Scope)
to go to the SCOPE screen.
Step 2. Select the Controls field, then choose Trigger from the list
of choices.
Using the Oscilloscope’s Marker
The marker is used to help you make measurements with the
oscilloscope. By repositioning the marker, you can measure the level
and time.
The marker is controlled using the marker menu. Select this menu with
the following procedure:
Step 1. Press Shift, then
Spec Anl (Scope)to
go to the SCOPE screen.
Step 2. Select the Controls field, the choose Marker from the list of
choices.
Chapter 3
73
Main Menu
Overview of the Test Set’s Built-In Tools
Using IB_UTIL Programs
Using IB_UTIL Programs
See "Securing a Test Procedure" on page 75 for information about the
SECURE_IT program. See "Clearing RAM" on page 76 for information
about the RAM_MANAGER program.
COPY_PL
The COPY_PL program allows you to copy procedures and libraries
from one PC card to another. See the HP 8935 Programmer’s Guide for
more information about procedures and libraries.
FILE_XFER
The FILE_XFER (file transfer) program transfers files on a PC card to a
device attached to either the HP-IB or to SERIAL PORT 9.
RAM_USAGE
The RAM_USAGE program lists the following information about the
Test Set’s RAM:
• Total RAM installed
• RAM disk allocations
• Save register allocations
• Approximate RAM available for IBASIC programs
74
Chapter 3
Main Menu
Overview of the Test Set’s Built-In Tools
Securing a Test Procedure
Securing a Test Procedure
The password option for securing a test procedure is accessed by
loading and running the SECURE_IT ROM program. This program is
accessed by running the IB_UTIL program.
Step 1. Select the SOFTWARE MENU screen.
Step 2. Select the Select Procedure Location: field and choose
ROM.
Step 3. Select the Select Procedure Filename: field.
a. Select IB_UTIL from the list of programs. Press Run Test to
display a list of procedures; select SECURE_IT and follow
directions to secure the desired information.
Chapter 3
75
Main Menu
Overview of the Test Set’s Built-In Tools
Clearing RAM
Clearing RAM
RAM can be cleared using the RAM_MANAGER program in the Test Set’s
ROM. This program clears all RAM, including any SAVE/RECALL
registers saved to Internal RAM.
This program is accessed by running the IB_UTIL program.
Step 1. Select the SOFTWARE MENU screen.
Step 2. Select the Select Procedure Location: field and choose
ROM.
Step 3. Select the Select Procedure Filename: field.
•Select IB_UTIL from the list of programs. Press Run Test to
display a list of procedures; select RAM_MANAGER and follow
directions to clear RAM.
To preserve the SAVE/RECALL registers, do not use the RAM_MANAGER
program. Instead, load any other test program from a card or from RAM
to clear the previous test program, and then reload the desired test.
See the "Save/Recall" field on page 179, and "Saving and Recalling
Instrument Setups" field on page 48 for more information about
save/recall registers.
76
Chapter 3
Main Menu
Overview of the Test Set’s Built-In Tools
Using the LISTOPTS (list options) Program
Using the LISTOPTS (list options) Program
You can list the options that are installed in your Test Set (if any) using
the LISTOPTS program. LISTOPTS also displays the firmware version
of your Test Set.
To run the LISTOPTS program
Step 1. Select the SOFTWARE MENU screen.
Step 2. Select the Select Procedure Location: field and choose
ROM.
Step 3. Select the Select Procedure Filename: field.
Step 4. Select LISTOPTS from the list of programs.
Step 5. Press Run Test to run the program and follow the directions
on the screen.
Chapter 3
77
Main Menu
Overview of the Test Set’s Built-In Tools
Using the DEMO Program
Using the DEMO Program
You can use the DEMO program to learn about the capabilities of the
Test Set. This program demonstrates some of the most useful features
of the Test Set.
To run the DEMO program
Step 1. Select the SOFTWARE MENU screen.
Step 2. Select the Select Procedure Location: field and choose
ROM.
Step 3. Select the Select Procedure Filename: field.
Step 4. Select DEMO from the list of programs.
Step 5. Press Run Test to run the program and follow the directions
on the screen.
78
Chapter 3
Main Menu
Overview of the Test Set’s Built-In Tools
Using the ST_PLT (store or plot) Program
Using the ST_PLT (store or plot) Program
This program allows you to store a spectrum analyzer, or oscilloscope
trace on PC card or to plot a stored trace from a PC card.
To run the ST_PLT program
Step 1. Select the SOFTWARE MENU screen.
Step 2. Select the Select Procedure Location: field and choose
ROM.
Step 3. Select the Select Procedure Filename: field.
Step 4. Select ST_PLT from the list of programs.
Step 5. Press k1 (Run Test) to run the program and follow the
directions on the screen.
Step 6. Press k2 (Show Info) to display the trace’s parameters (such
as frequency, level, span, and so forth).
Chapter 3
79
Main Menu
Overview of the Test Set’s Built-In Tools
Using the ST_PLT (store or plot) Program
80
Chapter 3
Main Menu
4
CDMA Measurements - Screens
and Control Fields
•
•
•
•
•
•
“Average Power Measurements” on page 82
“Channel Power Measurements” on page 83
“Rho Measurements” on page 84
“Error Vector Magnitude (EVM) Measurements” on page 88
“Code Domain Measurements” on page 89
“Control Fields for CDMA Measurements” on page 93
81
Main Menu
CDMA Measurements - Screens and Control Fields
Average Power Measurements
Average Power Measurements
CDMA Measurements
Average Power Measurements
Avg Pwr
Avg Pwr displays the average power level of all signals at the RF
IN/OUT port. The units (watts, volts, or dBm) can be changed by
positioning the cursor in front of the units field and then pressing the
desired units key. (See "Input Port" field on page 136.) Refer to the
HP 8935 CDMA Base Station Tests Applications Guide for more
information about average power measurements.
Screens on which this measurement is displayed.
• CDMA ANALYZER
• CDMA GENERATOR
ADC FS
ADC FS is displayed when average power is measured. ADC FS
indicates how close the measured power level is to the maximum
allowed input level at the RF IN/OUT port for a particular Pwr Gain
setting (on the CDMA ANALYZER screen). Changes to ADC FS can be
made by altering the Pwr Gain field setting and by altering the signal
level into the RF IN/OUT port. ADC FS should be between −1.0 and −10
dB when the Pwr Gain field is set to Auto, and can be manually set up
to −0.5 dB when set to Hold. The measurement will be aborted if ADC
FS goes above −0.5 dB. Measurement accuracy may be degraded if ADC
FS goes below −10 dB.
Screens on which this measurement is displayed.
• CDMA ANALYZER
• CDMA GENERATOR
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Chapter 4
Main Menu
CDMA Measurements - Screens and Control Fields
Channel Power Measurements
Channel Power Measurements
Channel Power Measurements
Chan Pwr
Channel power is the absolute power level of the RF signal in a
1.23 MHz bandwidth centered around the RF channel or tune
frequency setting. This measurement must be calibrated using the
Chan Pwr Cal field each time the tune frequency is changed. Refer to
the HP 8935 CDMA Base Station Tests Applications Guide for more
information about channel power measurements.
ADC FS
ADC FS is displayed when channel power is measured. ADC FS
indicates how close the measured power level is to the maximum
allowed input level at the RF IN/OUT port for a particular Gain setting
(on the CDMA ANALYZER screen). Changes to ADC FS can be made
by altering the Gain field setting and by altering the signal level into
the RF IN/OUT port. ADC FS should be between −1.0 and −10 dB when
the Gain field is set to Auto, and can be manually set up to −0.5 dB
when set to Hold. The measurement will be aborted if ADC FS goes
above −0.5 dB. Measurement accuracy may be degraded if ADC FS goes
below −10 dB.
Screens on which this measurement is displayed.
• CDMA ANALYZER
• CDMA GENERATOR
Chapter 4
83
Main Menu
CDMA Measurements - Screens and Control Fields
Rho Measurements
Rho Measurements
Rho Measurements
Rho
Rho is a measure of CDMA waveform quality which indicates how well
the measured signal (the pilot signal transmitted by the base station
under test) correlates with the ideal reference waveform (the ideal pilot
generated by the Test Set which is mathematically perfect). This
measurement is done through a complex DSP algorithm. Perfect
correlation is when rho is equal to 1. The CDMA standard specifies
0.912 as the minimum accepted performance for CDMA base stations.
To make rho measurements, the base station needs to be configured to
transmit only a pilot signal. The test equipment is then triggered by
any of the selectable CDMA clocks.
Many different things can contribute to rho failure; this is a short list of
them:
• compression in the linear power amplifier
• phase non-linearities (group delay)
• carrier feedthrough (see "Carrier Feedthrough" on page 87)
• I/Q magnitude and phase errors (see "Magnitude Error" on page 88
and "Phase Error" on page 88)
Figure 4-1 Rho
ρ
ρ
ρ
Power that correlates with ideal
Total Power
4OTAL 0OWER
0OWER THAT CORRELATES WITH IDEAL
Signal Power
3IGNAL 0OWER
Signal Power + Error Power
3IGNAL 0OWER %RROR 0OWER
0.912
Screens on which this measurement is displayed.
• CDMA ANALYZER
• CDMA GENERATOR
84
Chapter 4
Main Menu
CDMA Measurements - Screens and Control Fields
Rho Measurements
Rho Measurements
Frequency Error
Frequency error is displayed when the Rho measurement is selected.
Frequency error is the difference between the base station’s transmitter
frequency and the frequency you enter in the Tune Freq field.
Screens on which this measurement is displayed.
• CDMA ANALYZER
• CDMA GENERATOR
Time Offset
Time offset is displayed when the Rho measurement is selected. Time
offset is the time difference between the base station’s even second and
the start of the short sequence. It indicates how well your transmitter’s
signal is time-aligned to system time. Time offset is measured at the
base station’s antenna. The displayed value is based on the value
entered in the PN Offset field. (See the PN Offset field description, on
page 106.)
In Figure 4-2 on page 86 the first example is a measurement with a
time offset of zero. The beginning of the received data block aligns with
the first pilot PN chip of the reference signal. Zero time offset indicates
that the trigger event to the CDMA Analyzer coincided with the arrival
of the base station signal’s first pilot PN chip.
When the base station’s signal is delayed relative to the trigger event,
time offset will be a positive value. The second example is a
measurement with a positive time offset. The beginning of the data
block will align with a portion of the reference signal toward the end of
a pilot PN sequence. This indicates that the trigger event to the CDMA
Analyzer occurred when the base station was still transmitting a pilot
PN sequence prior to the first pilot PN chip of the expected sequence.
When the base station’s signal is early relative to the trigger event,
time offset will be a negative value. The third example is a
measurement with a negative time offset. The beginning of the data
block will align with a portion of the reference signal after the first pilot
PN chip. This indicates that the trigger event to the CDMA Analyzer
occurred after arrival of the base station signal’s first pilot PN chip.
Screens on which this measurement is displayed.
• CDMA ANALYZER
• CDMA GENERATOR
• CODE DOM (Code Domain Analyzer)
Chapter 4
85
Main Menu
CDMA Measurements - Screens and Control Fields
Rho Measurements
Figure 4-2
Rho Measurements
Time Offset
86
Chapter 4
Main Menu
CDMA Measurements - Screens and Control Fields
Rho Measurements
Rho Measurements
Carrier Feedthrough
Carrier feedthrough is displayed when the Rho measurement is
selected. Carrier feedthrough is a common cause of bad rho
measurements. Carrier feedthrough is a result of RF carrier signal
feeding through the I/Q modulator and getting on the output circuitry
without getting modulated. A good carrier feedthrough level is lower
than −25 dB (such as −29 dB).
As shown in the diagram, a perfect constellation is offset by the
magnitude of the carrier feedthrough. In the frequency domain, carrier
feedthrough can show up as an uncorrelated energy spike that can be
seen on the spectrum analyzer by closely scanning the top of the trace.
The effects of carrier feedthrough can also show up as higher noise
levels on the CODE DOM screen. The inactive Walsh codes will be
pushing the −27 dB specification for noise. Carrier feedthrough can be
caused by the lack of isolation across the mixer and cavity of the
transmitter’s I/Q modulator. Shielding can help reduce carrier
feedthrough.
Figure 4-3 Carrier Feedthrough
Amplitude
!MPLITUDE
1
#ARRIER
&EEDTHROUGH
Carrier
Feedthrough
Id
ea
Rl
ORIGIN
ea
l
)
Signal
Power+%RROR
Error 0OWER
Power
3IGNAL
0OWER
origin
Frequency
Frequency
Domain
&REQUENCY $OMAIN
&REQUENCY
I/Q Domain
)1 $OMAIN
Screens on which this measurement is displayed.
• CDMA ANALYZER
• CDMA GENERATOR
• CODE DOM (Code Domain Analyzer)
Chapter 4
87
Main Menu
CDMA Measurements - Screens and Control Fields
Error Vector Magnitude (EVM) Measurements
Error Vector Magnitude (EVM) Measurements
Error Vector Magnitude (EVM) Measurements
EVM
EVM is a measurement of the accuracy of the phase and amplitude of the
QPSK (Quadrature Phase Shift Keying) or Offset QPSK (OQPSK)
modulation. Expressed as a percentage, it is the RMS magnitude value
of the error vector which connects the ideal signal phasor to a measured
signal phasor at the detection decision points.
Figure 4-4 Components of Error Vector Magnitude
Magnitude Error
M
ea
s
ur
ed
Si
gn
al
r
or
ect
Ph
ro
Er
e
as
or V
Err
Q
S
al
I de
i gn
al
I
evm1.ds4
The magnitude of this error vector represents the “error” between the
ideal signal and the measured signal.
As part of the measurement, the signal is corrected for clock delay,
carrier frequency, carrier phase, and amplitude scaling.
Screens on which this measurement is displayed.
• CDMA ANALYZER
• CDMA GENERATOR
Magnitude Error
Magnitude Error is the difference in the RMS magnitude value (in
percent) between the ideal signal phasor and the compensated,
measured signal phasor at the detected decision points.
Phase Error
Phase Error is the RMS value of the difference in phase (degrees)
between the ideal signal phasor and the compensated, measured signal
phasor at the detection decision points.
88
Chapter 4
Main Menu
CDMA Measurements - Screens and Control Fields
Code Domain Measurements
Code Domain Measurements
Code Domain Measurements
The following measurements are displayed on the CODE DOM (code
domain analyzer) screen: power, fast power, timing and phase.
Measurements are selected from the Measurement field on the Main
controls menu.
Time offset (Tm Ofs) and frequency offset (FreqOfs) are always
displayed when any code domain measurement is made. Carrier
feedthrough (CarFT) is also displayed except when fast power is
measured.
Code Domain Power
Other users & noise
Synch
&REQUENCY
$OMAIN
Frequency
Domain
Paging
Pilot
User #2
User #1
freq
1.2288 MHz
Code Domain
#ODE $OMAIN
Walsh Code
0
1
Pilot Paging
2
3
4
5
6
7
8
User
1
9
User
2
32
Synch
Chapter 4
63
User
3
89
Main Menu
CDMA Measurements - Screens and Control Fields
Code Domain Measurements
Code Domain Measurements
Code Domain Power (Power)
Code domain power displays the power in each of the 64 Walsh
channels, relative to the total power inside 1.23 MHz bandwidth
centered at the tune frequency. The 64 Walsh codes (0 through 63) are
represented by a vertical bar on the analyzer’s display. Because this is a
relative measurement, the unit-of-measure is always dB. This allows a
comparison of signal levels between the pilot, sync, paging and traffic
channels. (Pilot is about two-thirds of the total energy.)
Figure 4-5 Reading Code Domain Power
Walsh 0
(Pilot)
Marker
Set to
Marker.
Select the Walsh
channel.
Read code
domain power.
Screens on which this measurement is displayed.
• CODE DOM (Code Domain Analyzer)
90
Chapter 4
Main Menu
Code Domain Measurements
CDMA Measurements - Screens and Control Fields
Code Domain Measurements
Fast Power
Fast power is a faster method of measuring code domain power. A value
for Time Offset must be transferred from a non-fast power
measurement before fast measurements begin, or when changes to any
of the following fields occur: Data Rate, PN Offset, CDMA TB, Synth
Ref.
See the "Ofs Trnsfer" field on page 105 for more information.
The number of measurement averages can be entered in the Num Avgs
field on the FP Setup menu. This number is used to calculate and
display successive code domain power measurements.
Screens on which this measurement is displayed.
• CODE DOM (Code Domain Analyzer)
Code Domain Timing (Timing)
Code domain timing is the difference in time between pilot (Walsh 0)
and other Walsh codes with the same forward CDMA channel. In the
CODE DOM screen, this measurement is indicated as positive or
negative bar with the size of the bar indicating how far ahead or behind
the other Walsh channels are relative to the pilot. Signals above the
reference are leading in time; signals below the reference are lagging.
(See figure 4-6.)
Screens on which this measurement is displayed.
• CODE DOM (Code Domain Analyzer)
Chapter 4
91
Main Menu
CDMA Measurements - Screens and Control Fields
Code Domain Measurements
Code Domain Measurements
Code Domain Phase (Phase)
Code domain phase is the difference in phase between the pilot and
other code channels (Walsh codes) within the same forward CDMA
channel. It displays the phase error for each of the 64 Walsh channels
relative to the pilot channel (Walsh 0). This measurement is indicated
as positive or negative bars on the Test Set’s CODE DOM screen. The
size of the bar indicates how much the phase of other Walsh codes lead
or lag the pilot. Signals above the reference are leading in phase;
signals below the reference are lagging.
Figure 4-6 Code Domain Timing and Phase
4IME
7ALSH #ODE
7ALSH #ODE
0HASE
Screens on which this measurement is displayed.
• CODE DOM (Code Domain Analyzer)
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Chapter 4
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CDMA Measurements - Screens and Control Fields
Amplitude
ADCfs or ADC FS
Control Fields for CDMA Measurements
ADCfs or ADC FS
ADCfs indicates how close the measured power level is to the maximum
allowed input level for the analyzer’s Analog-to-Digital Converter
(ADC). This level is affected by the Gain setting on the CODE DOM
screen, the Input Atten, Gain, and, Pwr Gain settings on the CDMA
ANALYZER screen, and the RF level of the signal connected to the Test
Set.
For best measurement performance, ADCfs should be between −1.0 and
−10 dB. The measurement will be aborted if ADCfs goes above 0 dB.
Measurement accuracy may be degraded if ADCfs goes below −10 dB.
Screens on which this field is present
CODE DOM (Code Domain Analyzer) screen: gain controls menu
CDMA ANALYZER (ADC FS)
CDMA GENERATOR (ADC FS)
Amplitude
This field sets the output level of the RF generator to the RF IN/OUT or
DUPLEX OUT port. Use the DUPLEX OUT port for signal levels
greater than −26 dBm.
Screens on which this field is present
CDMA GENERATOR
Chapter 4
93
Main Menu
CDMA Measurements - Screens and Control Fields
Analyzer (CDMA analyzer)
Analyzer (code domain analyzer)
Analyzer (CDMA analyzer)
The Analyzer field controls three functions:
• Arm Meas arms the CDMA analyzer. The CDMA analyzer needs to
be armed only when Single (see below) is selected.
• Single/Cont selects between “single” measurements and
“continuous” measurements.
• When Single is chosen, you must arm each measurement by
selecting the Arm Meas field (see above).
• When Cont (continuous) is chosen, measurements are
automatically armed.
The default selection is Cont.
• Disarm disarms the CDMA analyzer during single operation. To
stop continuous measurements, select Single. Selecting Disarm
does not prevent the analyzer from being re-armed during
continuous measurements
Screens on which this field is present
CDMA ANALYZER
Analyzer (code domain analyzer)
This field is used to arm or disarm measurements when making a
single measurement (does not affect continuous measurements).
Selecting Disarm stops the analyzer during a single measurement.
See the "Measurement" field on page 104 for more information.
Screens on which this field is present
COD DOM (Code Domain Analyzer): main controls menu
94
Chapter 4
Main Menu
CDMA Measurements - Screens and Control Fields
Auto Zero
Anl Dir
Anl Dir
This field is used to select the type of signal (forward or reverse link) to
analyze.
• Fwd sets the analyzer to look for base station transmitter data
(forward link).
• Rev sets the analyzer to look for mobile transmitter data (reverse
link).
Default selection: Fwd
Screens on which this field is present
CDMA ANALYZER
Anl Special
Analyzer special modes change how IQ modulated signals are analyzed.
• Normal sets the CDMA generator and CDMA analyzer to create and
analyze signals with standard rotation.
• Inverted sets reverse rotation for I and Q signals; opposite to the
direction specified in the IS-95 standards. In this mode, the CDMA
generator creates reverse-rotation IQ signals and the CDMA
analyzer expects reverse-rotation IQ signals.
Screens on which this field is present
CDMA ANALYZER
Auto Zero
This field is displayed for average power measurements.
Auto is used to automatically zero the average power measurement
periodically during operation.
Manual is used to override the Auto feature. When Manual is selected,
you must manually zero the average power measurement by selecting
the Pwr Zero field.
Screens on which this field is present
CDMA ANALYZER
Chapter 4
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Main Menu
CDMA Measurements - Screens and Control Fields
Car FT
Chn Pwr Cal
Car FT
This field is a measurement display field. See "Carrier Feedthrough" on
page 87 for more information about this measurement.
Screens on which this field is present
COD DOM (Code Domain Analyzer)
Chn Pwr Cal
This field is displayed when the channel power measurement is
selected. It is used to calibrate the channel power measurement. When
this field is selected, an internally generated calibration signal is
measured using the average power technique. Channel power is also
measured and a correction factor is generated. This correction factor is
applied to subsequent channel power measurements. Calibration
should be performed whenever a new set of measurements is made and
whenever the frequency of the measured signal is changed. See
"Calibrating the Channel Power Measurement" on page 41 for more
information.
Screens on which this field is present
CDMA ANALYZER
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Chapter 4
Main Menu
Controls
CDMA Measurements - Screens and Control Fields
Controls
Controls
Code domain analyzer settings are arranged into several menus that
are accessed using the Controls field. The control groups are:
• Main accesses the RF In/Ant, Tune Freq (or RF Channel),
Measurement, and Analyzer fields.
• Marker controls the marker to look at the level of individual Walsh
channels.
• Trigger accesses the trigger controls: Qual Event and Trig
Event.
• Aux accesses the PN Offset, measurement Threshold, and
measurement Interval fields.
• Gain lets you alter the gain into the CDMA analyzer while reading
the ADCfs value.
• FP Setup accesses the offset transfer and number of averages fields
used to make fast power measurements.
Many of these controls are duplicates from the CDMA ANALYZER and
CDMA GENERATOR screens.
Screens on which this field is present
COD DOM (Code Domain Analyzer): all menus
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Main Menu
CDMA Measurements - Screens and Control Fields
CW RF Path
Data Rate
CW RF Path
This field selects the path for the RF generator’s signal.
• Bypass disables the IQ modulator. This mode is used when
generating standard AM, FM, or CW signals in the Test Set.
• IQ enables the IQ modulator.
See the "Data Source" field on page 99 for more information.
Screens on which this field is present
CDMA GENERATOR
Data Rate
This field allows receiver testing at data rates of 9.6 or 14.4 Kbps.
If the data buffer is the selected data source, and the data rate is
changed, the transmission state will change to Idle. Select Send to
resume data output at the new rate.
Choices
• 14.4 Kbps
• 9.6 Kbps
Default selection: 9.6 Kbps
Screens on which this field is present
CDMA GENERATOR
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CDMA Measurements - Screens and Control Fields
Data Source
Data Source
Data Source
This field selects where the baseband quadrature spreader gets its
data. This field is removed when the Gen Mode field is set to Noise.
• Zeroes uses a data stream of all 0’s that is not encoded before being
applied to the baseband quadrature spreader and output.
• Ext uses external data from the DATA IN connector. This data is not
encoded before being applied to the baseband quadrature spreader.
• Random uses 300 frames of random, error-free data. (See Data Buff
(below) for Single/Cont, Idle/Send operation.)
• Data Buff uses data previously loaded into the data buffer. You can
load your own data into the buffer over HP-IB. This data is encoded
before baseband quadrature spreading. Choosing this selection
displays these additional fields:
• Single/Cont
• Single causes the data stream to be output once when Send
is selected.
• Cont causes the data stream to be repeated continuously when
Send is selected. Changing to single operation while sending
causes the data to be interrupted after the current 20 ms
frame.
• Send/Idle
• Send causes the data stream to be output after two rising
edges of the internal 80 ms clock are detected.
• Idle indicates that data from the buffer is not being
transmitted. Selecting Idle while sending data interrupts the
data at the completion of the current 20 ms frame. A data
stream of all zeroes (encoded) continues to be transmitted after
the initial data stream is interrupted. This is different from
the Zeroes selection above where the data is not encoded.
• Start Frame specifies the first frame of data to send.
• # of Frames specifies how many frames of data to send.
Screens on which this field is present
CDMA GENERATOR
Chapter 4
99
Main Menu
CDMA Measurements - Screens and Control Fields
Even Sec In
Gain
Even Sec In
This field controls the internal connection of the EVEN SECOND
SYNC IN connector to the CDMA analyzer.
• When Enable is selected, signals applied to the EVEN SECOND
SYNC IN connector synchronize the timing circuits.
• When Not is selected, input signals applied to the EVEN SECOND
SYNC IN are ignored. This mode may be useful when signals other
than an even-second clock are used for synchronization. For
example, when using a one-second clock, you would select Not after
synchronization to prevent the internal even-second clock from being
retriggered half-way through its cycle.
Screens on which this field is present
CDMA ANALYZER
CDMA GENERATOR
Freq Err
This measurement display field displays the frequency offset (frequency
error). See "Frequency Error" on page 85 for more information about
this measurement.
Screens on which this field is present
COD DOM (Code Domain Analyzer)
Gain
This field sets the IF gain of the CDMA analyzer for rho, EVM, and
channel power measurements. (Range: 0 dB to 36 dB in 6 dB steps.)
Gain is adjusted two ways:
• Auto measures the signal level and automatically adjusts the gain.
• Hold disables automatic operation to allow you to manually enter
the desired gain by selecting the current gain setting and entering a
new value using the keypad or cursor control knob.
This field is replaced by the Pwr Gain field when measuring average
power. See the "Input Atten" field on page 102 for more information.
Screens on which this field is present
CDMA Analyzer
COD DOM (Code Domain Analyzer): gain controls menu
100
Chapter 4
Main Menu
CDMA Measurements - Screens and Control Fields
Gen Mode
Gen Dir
Gen Dir
This field sets the link direction of the CDMA signal.
• Fwd (forward) sets the CDMA generator to produce QPSK
modulation to imitate a base station. The EQ Filter field is
automatically set to EQ In to apply an equalizing filter to the I and
Q paths as part of the baseband filtering, but it can be changed to
Out.
• Rev (reverse) sets the CDMA generator to produce OQPSK
modulation to imitate a mobile station. The EQ Filter field is
automatically set to Out (and cannot be changed) to remove the
equalizing filter from the I and Q paths.
Screens on which this field is present
CDMA GENERATOR
Gen Mode
This field selects the type of modulation information sent to the CDMA
generator’s IQ modulator.
• Data allows data to be transmitted to simulate a traffic channel with
no additive noise. (See the"Data Source" field on page 99.)
• Eb/No causes a combination of data and White Gaussian Noise
(AWGN) noise to be transmitted. The value entered is the ratio
between the energy of each information bit (Eb) and the noise
spectral density (N o), expressed in dB.
• Noise causes a signal modulated by White Gaussian Noise to be
generated. The noise is band limited to 2 MHz and white inside a
1.25 MHz bandwidth centered around the RF Gen Freq. This
selection removes the Data Source, Start Frame, and # of
Frames fields from the screen; those fields are only used with the
Data and Eb/No entries.
Screens on which this field is present
CDMA GENERATOR
Chapter 4
101
Main Menu
CDMA Measurements - Screens and Control Fields
Gen Special
Input Atten
Gen Special
Generator special modes change how IQ modulated signals are
generated.
• Normal sets the CDMA generator and CDMA analyzer to create and
analyze signals with standard rotation.
• Inverted sets reverse rotation for I and Q signals; opposite to the
direction specified in the IS-95 standards. In this mode, the CDMA
generator creates reverse-rotation IQ signals and the CDMA
analyzer expects reverse-rotation IQ signals.
Screens on which this field is present
CDMA GENERATOR
Input Atten
This field controls the RF attenuators of the Test Set. If an ADC
Overdriven message is displayed at the top of the screen while
making measurements, increase the attenuator setting until the
message is no longer displayed. This is the coarse level adjustment for
the signal level into the CDMA analyzer. Fine level adjustment is
performed using the Gain field.
See the "Gain" field on page 100 for more information.
NOTE
The Input Atten setting does not affect, and is not
displayed with, the average power measurement.
Screens on which this field is present
CDMA ANALYZER
CODE DOM (Code Domain Analyzer): gain controls menu
102
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Main Menu
CDMA Measurements - Screens and Control Fields
Meas Intvl
Input Port
Input Port
This field selects which Test Set port to use as the RF input. This field
is not displayed when measuring average power, since you must use the
RF IN/OUT port to measure average power.
CAUTION
Instrument Damage
To prevent instrument damage, do not exceed the
maximum power level labeled at the connectors on your
Test Set. The ANT IN connector is for measuring low level
RF signals. High level (>60 mW) transmitter signals must
be measured using the RF IN/OUT port.
Screens on which this field is present
CDMA ANALYZER
CODE DOM (Code Domain Analyzer): main controls menu
Lvl
This measurement displays the relative level of the selected Walsh
channel when compared to the total power in a 1.23 MHz bandwidth
centered around the Tune Freq setting. The measurement is displayed
when the code domain analyzer’s main controls Measurement field is
set to Power or Fast Pwr.
Screens on which this field is present
COD DOM (Code Domain Analyzer): marker controls menu
Meas Intvl
This field determines the length of the data block. The data block is a
time record over which correlated measurements are computed. As the
interval is increased, measurement time is increased. Increasing the
interval gives more accurate measurement results, particularly with
frequency error and phase error measurements.
This field is displayed on the CDMA ANALYZER screen when a rho or
EVM measurement is selected. It is also displayed on the CODE DOM
(Code Domain Analyzer) controls menu.
Screens on which this field is present
CDMA ANALYZER
CODE DOM (Code Domain Analyzer): controls menu
Chapter 4
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Main Menu
CDMA Measurements - Screens and Control Fields
Measurement
Num Avgs
Measurement
This field controls the type of code domain measurement to make:
power, timing, or phase. It also controls the measurement "mode."
• Single is used when you want to make one measurement. You must
select the Arm Meas function of the Analyzer field before a
measurement can be made.
• Cont is used to continuously make measurements. Measurements
are automatically re-armed after each measurement.
Screens on which this field is present
COD DOM (Code Domain Analyzer): main controls menu
Num Avgs
The number of averages determines how many measurements are
averaged when measuring fast power. Averaging reduces measurement
speed.
Screens on which this field is present
COD DOM (Code Domain Analyzer): fast power setup controls menu
104
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Main Menu
CDMA Measurements - Screens and Control Fields
Output Port
Ofs Trnsfer
Ofs Trnsfer
This field transfers the time offset value from the time offset
measurement (displayed in TmOfs) to the Time Offset field
automatically. Before selecting Ofs Trnsfer, you must make at least
one of the following code domain measurements:
• Power
• Timing
• Phase
Operating Considerations
When using this command programmatically, be sure a value for Tm
Ofs has been obtained from a power, timing, or phase measurement.
(One method of ensuring the measurement has been completed would
be to send an HP-IB command to query the results of the Tm Ofs field
before sending the transfer command).
Screens on which this field is present
COD DOM (Code Domain Analyzer): fast power setup controls menu
Output Port
This field selects the output port for the signal from the Test Set’s RF
and CDMA generators.
RF Out selects the RF IN/OUT connector.
Dupl selects the DUPLEX OUT connector.
Screens on which this field is present
CDMA GENERATOR
Chapter 4
105
Main Menu
CDMA Measurements - Screens and Control Fields
PN Offset
Pwr Gain
PN Offset
Use this field to enter the PN sequence offset index for your base
station. Each whole offset is equal to 64 chips (= 52.08 µs). Fractional
values are rounded off, and can be entered, in increments of 0.015625
(1 chip). Once entered, this value is shared by all CDMA screens.
This value is used by the analyzer when the Even Sec In field on the
CDMA GENERATOR screen is set to Enable.
NOTE
When the Even Sec In field is set to Not, changes to the
PN Offset field have no effect on the analyzer.
Screens on which this field is present
CDMA ANALYZER
CDMA GENERATOR
CODE DOM (Code Domain Analyzer): auxiliary controls menu
Pwr Gain
This field is used to set the level into the CDMA analyzer when making
average power measurements. Levels are set in 6 dB increments. The
IF signal level is displayed as ADC FS when average power is
measured, and should be between −1.0 and −5 dB for best measurement
results.
• Auto automatically sets the gain for an ADC FS value in the range
of −1 to −5 dB. This is the recommended mode of operation.
• Hold lets you override the automatic setting to manually set the
gain.
This field is only displayed when an average power measurement is
selected.
Screens on which this field is present
CDMA ANALYZER
106
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CDMA Measurements - Screens and Control Fields
Pwr Zero
Pwr Intvl
Pwr Intvl
This field determines the length of the data block when measuring
average power. The data block is a time record over which correlated
measurements are computed.
Range: 0.25 to 5.00 ms
Screens on which this field is present
CDMA ANALYZER
Pwr Scale
The upper part of this field is used to select the reference level for power
measurements (relative to the total power of the entire CDMA
channel). The reference is the top line of the screen and defaults to
0 dB.
The lower part of this field is used to select the display resolution for
the power measurement; 1, 2 or 5 dB per vertical division.
The power scale fields are displayed in the Marker menu when the
Main controls Measurement field is set to Power or Fast Pwr.
Screens on which this field is present
COD DOM (Code Domain Analyzer): marker controls menu
Pwr Zero
Selecting this field calibrates (zeroes) the average power meter. This
operation should be performed immediately before making an average
power measurement. This field is only displayed if the average power
measurement is selected.
Operating Considerations
The Auto Zero field causes average power to be periodically calibrated
when set to Auto. If the Auto Zero field is set to Manual, you must use
the Pwr Zero field to zero average power. (See the "Auto Zero" field on
page 95 for more information.)
Screens on which this field is present
CDMA ANALYZER
Chapter 4
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Main Menu
CDMA Measurements - Screens and Control Fields
Qual Event
Qual Event
Qual Event
This field selects a trigger qualifier. The trigger qualifier serves as a
precursor to the CDMA analyzer trigger event. Selecting a trigger
qualifier is required when a time-delayed trigger event is desired, or if
the trigger signal is externally supplied at the TRIGGER QUALIFIER
IN connector.
If a time-delayed trigger is used (see the "Trig Event" field on page 112),
the qualifier starts the delay timer. When the timer expires, a trigger
event occurs and a measurement is made.
• None causes the trigger event to be determined solely by the
selection in the Trig Event field.
• 27 ms is an internally generated clock signal.
• 20 ms is an internally generated clock signal.
• 80 ms is an internally generated clock signal (default selection).
• 2 s is an internally generated clock signal.
• Ampl Lo qualifies a trigger each time the input to the CDMA
analyzer rises above −18 dB ADC FS. ADC FS is displayed when the
average power measurement is selected, or when adjusting the Gain
field on the CODE DOMAIN ANALYZER screen.
• Ampl Mid qualifies a trigger each time the input to the CDMA
analyzer rises above −12 ADC FS.
• Ampl Hi qualifies a trigger each time the input to the CDMA
analyzer rises above −6 ADC FS.
• External must be selected if the trigger qualifier is provided by an
external source. The external signal connects to the TRIGGER
QUALIFIER IN connector. A qualifier occurs on the input signal’s
rising edge.
Screens on which this field is present
CDMA ANALYZER
CODE DOM (Code Domain Analyzer): trigger controls menu
108
Chapter 4
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CDMA Measurements - Screens and Control Fields
RF Gen Freq
RF Channel
RF Channel
The RF Channel field is displayed when the RF Display field on the
INSTRUMENT CONFIGURE screen is set to Chan.
This field displays the current channel number. Channel tuning
eliminates the need to enter transmit and receive frequencies directly
into the Test Set. Once the radio’s RF channel standard is selected, you
only have to enter the channel number to automatically set the RF
Generator and RF Analyzer to the correct frequency.
Operating Considerations
To utilize the correct transmit and receive frequencies select the
appropriate channel standard from the RF Chan Std field on the
INSTRUMENT CONFIGURE screen.
Screens on which this field is displayed
CDMA ANALYZER
CDMA GENERATOR
CODE DOM (Code Domain Analyzer): main controls menu
RF Gen Freq
This field specifies the center frequency of the generated CDMA signal.
This field is displayed only when the RF Display field on the
INSTRUMENT CONFIGURE screen is set to Freq.
NOTE
Channel Tuning
You can configure the Test Set to allow direct entry of
channel numbers (instead of entering the frequency) by
using the RF Display field on the INSTRUMENT
CONFIGURE screen. See the "RF Channel" field (this
page) for more information.
Screens on which this field is present
CDMA GENERATOR
Chapter 4
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Main Menu
CDMA Measurements - Screens and Control Fields
RF In/Ant
Threshold
RF In/Ant
This field selects the Test Set’s RF input.
CAUTION
The maximum safe level into the ANT IN connector is
60 mW. Exceeding this level could cause permanent
damage to the Test Set.
Screens on which this field is present
CODE DOM (Code Domain Analyzer): main controls menu
Threshold
Enter the measurement display threshold for making code domain
timing and phase measurements. Walsh channels that have power
levels below the threshold value are not displayed.
Operating Considerations
Querying these measurements for Walsh channels that are below the
threshold level using HP-IB will return a default value of 9e99.
Screens on which this field is present
COD DOM (Code Domain Analyzer): auxiliary controls menu
110
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CDMA Measurements - Screens and Control Fields
TmOfs
Time Offset
Time Offset
This field allows you to manually enter a time offset. To obtain a value
to enter in this field you must make at least one of the following
measurements.
•
•
•
•
Power
Timing
Phase
Rho
After making the measurement, access the FP Setup menu on the
CODE DOM screen, and enter the value obtained from the Time Ofs
field or, for rho measurements, the Time Offset measurement field on
the CDMA ANALYZER screen.
An entry into the Time Offset field can also be made automatically,
using the Ofs Trnsfer field. See the "Ofs Trnsfer" field on page 105.
When measuring fast power, the code domain analyzer uses the value
in the Time Offset field instead of re-measuring the time offset
parameters each time a code domain measurement is made.
Screens on which this field is present
COD DOM (Code Domain Analyzer): fast power setup controls menu
TmOfs
This measurement field displays the time offset when a rho
measurement is made. See the "Time Offset" field (this page) for more
information about this measurement.
Screens on which this field is present
COD DOM (Code Domain Analyzer): all menus
Chapter 4
111
Main Menu
CDMA Measurements - Screens and Control Fields
Trig Event
Tune Freq
Trig Event
This field determines when the trigger event to the CDMA analyzer
occurs. When the selected trigger in this field is qualified by the
selection in the Qual Event field, the CDMA analyzer is triggered.
Choices
• 27 ms is an internally generated clock.
• 20 ms is an internally generated clock.
• 80 ms is an internally generated clock.
• 2 s is an internally generated clock.
• Delay controls a trigger delay timer, beginning from the positive
edge of the selected qualifier. A delay of 20 µs to 10,000,000 µs is
valid. Initially, the time delay will be 100 µs.
• Immed triggers immediately after receiving the Qual Event signal.
Default selection: Immed.
Screens on which this field is present
CDMA ANALYZER
COD DOM (Code Domain Analyzer): trigger controls menu
Tune Freq
Use this field to enter the center frequency of the CDMA channel you
are analyzing. This field is displayed only when the RF Display field
on the INSTRUMENT CONFIGURE screen is set to Freq.
NOTE
Channel tuning
You can configure the Test Set to allow direct entry of
channel numbers (instead of entering the frequency) by
using the RF Display field on the INSTRUMENT
CONFIGURE screen. See the "RF Channel" field on page
109 for more information.
Screens on which this field is present
CDMA ANALYZER
COD DOM (Code Domain Analyzer): main controls menu
112
Chapter 4
Main Menu
Walsh Chan
CDMA Measurements - Screens and Control Fields
Walsh Chan
Walsh Chan
This field selects the Walsh channel to move the marker to. The marker
can be moved by either entering the Walsh channel number using the
keypad, or by using the cursor-control knob.
Screens on which this field is present
COD DOM (Code Domain Analyzer): marker controls menu
Chapter 4
113
Main Menu
CDMA Measurements - Screens and Control Fields
Walsh Chan
Walsh Chan
114
Chapter 4
Main Menu
5
Analog Measurements - Screens
and Control Fields
•
•
•
•
•
•
•
•
•
•
•
•
•
"AC Level Measurement" on page 116
“AM Depth Measurement” on page 116
“AF Freq Measurement” on page 117
“DC Level Measurement” on page 117
“Distn (Distortion) Measurement” on page 118
“Frequency Measurement” on page 119
“Frequency Error Measurement” on page 119
“TX Power Measurement” on page 120
“FM Deviation Measurement” on page 121
“AF Freq (Audio Frequency) Measurement” on page 121
“SINAD Measurement” on page 122
“SNR Measurement” on page 122
“Control Fields for Analog Measurements” on page 123
115
Main Menu
Analog Measurements - Screens and Control Fields
AC Level Measurement
AM Depth Measurement
Analog Measurements
AC Level Measurement
The type of measurement shown is dependent on the AF Anl In
settings. AC Level is displayed when the AF Anl In field is set to SSB
Demod, Audio In, Ext Mod, or Audio Out.
The AC Level measurement field displays either rms potential
(voltage) or audio power (Watts or dBm).
See "Displaying AF Measurements" on page 37, or the
"AF Anl In" field on page 123 for more information.
Screens on which this field is displayed
AF ANALYZER
RF ANALYZER
RF GENERATOR
AM Depth Measurement
This measurement field displays the percent depth of modulation of the
AM signal. This measurement is displayed when the AF Anl In field is
set to AM MOD or AM DEMOD.
See "Displaying AF Measurements" on page 37, or the
"AF Anl In" field on page 123 for more information.
Screens on which this field is displayed
AF ANALYZER
RF ANALYZER
RF GENERATOR
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Analog Measurements - Screens and Control Fields
DC Level Measurement
AF Freq Measurement
AF Freq Measurement
The AF frequency measurement is the audio frequency of the signal
present at the input selected in the AF Anl In field (on the AF
ANALYZER screen). Four dashes (- - - -) indicate that no audio
frequency is present to measure.
See "SINAD, Distortion, SNR, AF Frequency, DC Level," on page 38 for
more information. See also the "AF Anl In" field on page 123.
Screens on which this measurement is displayed
AF ANALYZER
RF GENERATOR
RF ANALYZER
DC Level Measurement
This measurement field displays the dc voltage entering at the source
set in the AF Anl In field (on the AF ANALYZER screen).
See "SINAD, Distortion, SNR, AF Frequency, DC Level," on page 38 for
more information. See also the "AF Anl In" field on page 123.
Operating Considerations
When the AF Anl In field is set to FM Demod or AM Demod, the
unit-of-measure is kHz (for FM Demod) or % (for AM Demod). For these
two settings this measurement indicates the dc modulation component
of the received signal.
Screens on which this field is displayed
AF ANALYZER
RF GENERATOR
RF ANALYZER
Chapter 5
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Analog Measurements - Screens and Control Fields
Distn (Distortion) Measurement
FM Deviation Measurement
Distn (Distortion) Measurement
This measurement field displays the percent of distortion for an audio
signal tone.
See "SINAD, Distortion, SNR, AF Frequency, DC Level," on page 38 for
more information.
Operating Considerations
Set the Notch Freq field (on the AF ANALYZER screen) to match the
AF frequency used for your distortion measurement.
Screens on which this field is displayed
AF ANALZYER
RF ANALYZER
RF GENERATOR
FM Deviation Measurement
This measurement field displays the deviation of FM signals. This
measurement is displayed when the AF Anl In field (on the AF
ANALYZER screen) is set to FM Demod or FM Mod.
See "Displaying AF Measurements" on page 37 for more information.
Screens on which this field is displayed
AF ANALZYER
RF ANALYZER
RF GENERATOR
118
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Analog Measurements - Screens and Control Fields
Frequency Error Measurement
Frequency Measurement
Frequency Measurement
This measurement field displays the center frequency the signal being
measured.
Operating Considerations
This measurement cannot be used for measuring CDMA signals; use
the CDMA analyzer.
Screens on which this field is displayed
AF ANALZYER
RF ANALYZER
RF GENERATOR
Frequency Error Measurement
This measurement field displays the difference between the Test Set’s
RF channel or tune frequency setting set and measured signal’s
frequency.
You can display the frequency error in ppm by pressing the ppm W key.
Operating Considerations
This measurement cannot be used for measuring CDMA signals; use
the CDMA analyzer.
Screens on which this field is displayed
AF ANALZYER
RF ANALYZER
RF GENERATOR
Chapter 5
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Main Menu
Analog Measurements - Screens and Control Fields
TX Power Measurement
TX Power Measurement
TX Power Measurement
Transmitter power measures RF power at the RF IN/OUT port.
Operating Considerations
Only the RF IN/OUT port can be used for measuring TX power. When
the Input Port is set to Ant, four dashes (- - - -) appear in place of
digits for this measurement.
Use the spectrum analyzer to measure low-level RF power (≤60 mW) at
the ANT IN port.
See the "Input Port" field on page 136 or the "TX Pwr Zero" field on
page 157 for more information.
CAUTION
Connecting a signal of >60 mW to the ANT IN port can
cause instrument damage (although internal protection
circuits can typically withstand a short-duration signal of
several Watts). If the overpower circuit is triggered
(signified by a warning message at the top of the screen),
remove the signal from the ANT IN port, and reset using
Meas Reset (press and release the Shift key, then the Hold key)
or turn the Test Set off and on to reset it.
Screens on which this field is displayed
AF ANALYZER
RF ANALYZER
RF GENERATOR
120
Chapter 5
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FM Deviation Measurement
Analog Measurements - Screens and Control Fields
AF Freq (Audio Frequency) Measurement
FM Deviation Measurement
This is the default setting for this measurement field. The FM deviation
measurement is the frequency deviation of the carrier. This
measurement field is only displayed when the AF Anl In field (on the
AF ANALYZER screen) is set to FM Demod or FM Mod.
See the "Displaying AF Measurements" on page 37 for more
information. See also the "AF Anl In" field on page 123.
Screens on which this field is displayed
AF ANALYZER
RF ANALYZER
RF GENERATOR
AF Freq (Audio Frequency) Measurement
The audio frequency measurement field displays the audio frequency of
the signal at the source selected in the AF Anl In field (on the AF
ANALYZER screen).
See "SINAD, Distortion, SNR, AF Frequency, DC Level," on page 38 for
more information. See also the "AF Anl In" field on page 123.
Screens on which this field is displayed
AF ANALZYER
RF ANALYZER
RF GENERATOR
Chapter 5
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Main Menu
Analog Measurements - Screens and Control Fields
SINAD Measurement
SNR Measurement
SINAD Measurement
SINAD is the measure of the ratio of the signal+noise+distortion to the
noise+distortion produced at the output of a receiver that is the result
of a modulated signal input. This ratio is expressed in dB.
See "SINAD, Distortion, SNR, AF Frequency, DC Level," on page 38 for
more information.
Screens on which this field is displayed
AF ANALYZER
RF GENERATOR
RF ANALYZER
SNR Measurement
The is signal to noise ratio of the audio input signal.
See "SINAD, Distortion, SNR, AF Frequency, DC Level," on page 38 for
more information.
Operating Considerations
• Selecting SNR turns off any other audio measurements.
• The RF generator and audio frequency generator 1 (AFGen1) must
be set up to provide the radio’s carrier. (AFGen1 is automatically
turned on and off repeatedly during this measurement.)
• The AFGen2 To field on the RF GENERATOR screen must be set to
Off.
• The audio output of the radio’s receiver must be connected to the
AUDIO IN port (set the AF Anl In field on the AF ANALYZER
screen to Audio In).
Screens on which this measurement is displayed
AF ANALYZER
RF GENERATOR
RF ANALYZER
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Analog Measurements - Screens and Control Fields
AF Cnt Gate
AF Anl In
Control Fields for Analog Measurements
AF Anl In
The audio frequency analyzer input selects the input for the analyzer.
When selected, this field displays a list of choices.
Signals can be analyzed from three different types of inputs:
• The output of the AM, FM, or SSB demodulators.
• The AUDIO IN, ANALOG MODULATION IN, and AUDIO OUT
connectors.
• The signal present at the AM or FM modulators for the RF
generator.
Operating Considerations
Changing this field changes the audio measurement (in the upper-right
of the screen) to correspond to the selected signal.
See "Selecting the Oscilloscope’s Input" on page 72 for more
information.
Screens on which this field is displayed
AF ANALYZER
AF Cnt Gate
Audio frequency counter gate specifies how long the AF counter
samples the signal before displaying the frequency. Specifying a shorter
gate time may enable you to see frequency fluctuations that might not
be seen using a longer gate time.
Screens on which this field is displayed
AF ANALYZER
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Analog Measurements - Screens and Control Fields
AFGen1 Freq
AFGen1 To
AFGen1 Freq
This field sets the frequency for the first audio frequency sinewave
generator.
Screens on which this field is displayed
RF GENERATOR
AFGen1 To
This field has two subfields:
• The upper field sets the destination port for audio frequency
generator 1
• FM -RF generator FM modulator
• AM -RF generator AM modulator
• Audio Out -AUDIO OUT connector
• The lower field
• sets FM modulation deviation if the upper field set to FM
• sets AM modulation depth if the upper field set to AM
• sets the amplitude of audio signal (volts RMS) at the AUDIO
OUT connector if upper field is set to Audio Out
• turns off the AF generator if the Yes On/Off key is pressed.
Operating Considerations
Simultaneous FM and AM, using both AF generators is not allowed.
AF generators 1 and 2 are automatically turned off any time the CDMA
screens are displayed. This prevents accidental amplitude or frequency
modulation of the CDMA carrier. The AF generators are turned back on
when you exit the CDMA screens (if they were previously turned on).
Screens on which this field is displayed
RF GENERATOR
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Analog Measurements - Screens and Control Fields
AFGen2 To
AFGen2 Freq
AFGen2 Freq
This field sets the frequency for the second audio frequency sinewave
generator.
Screens on which this field is displayed
RF GENERATOR
AFGen2 To
This field has two subfields:
• The upper field sets the destination port for audio frequency
generator 2
• FM -RF generator FM modulator
• AM -RF generator AM modulator
• Audio Out -AUDIO OUT connector
• The lower field
• sets FM modulation deviation if the upper field set to FM
• sets AM modulation depth if the upper field set to AM
• sets the amplitude of audio signal (volts RMS) at the AUDIO
OUT connector if upper field is set to Audio Out
• turns off the AF generator if the Yes On/Off key is pressed.
Operating Considerations
Simultaneous FM and AM, using both AF generators is not allowed.
AF generators 1 and 2 are automatically turned off any time the CDMA
screens are displayed. This prevents accidental amplitude or frequency
modulation of the CDMA carrier. The AF generators are turned back on
when you exit the CDMA screens (if they were previously turned on).
Screens on which this field is displayed
RF GENERATOR
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Analog Measurements - Screens and Control Fields
Amplitude
Atten Hold
Amplitude
This field adjusts the amplitude of the RF generator.
See for Atten Hold (below) for more information.
Screens on which this field is displayed
RF GENERATOR
SPEC ANL: RF generator controls menu
Atten Hold
Attenuator hold prevents the fixed RF output attenuators from
switching in and out, eliminating the loss of the output signal as the
level is changed. This function is helpful when making squelch
measurements.
Operating Considerations
When this function is set to On, the RF output level is restricted to a
range around the present Amplitude setting. This range varies with
the amplitude setting. Attempting to set an amplitude outside the
allowed range results in an error message and beep (if the beeper is on).
RF output level accuracy is greatly degraded outside the allowed range.
Screens on which this field is displayed
RF GENERATOR
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Analog Measurements - Screens and Control Fields
Auto/Norm
Audio In Lo
Audio In Lo
This field sets the AUDIO IN LO connector’s state.
• Gnd causes the center pin of the connector to be connected directly to
chassis ground.
• Float isolates the center pin of the connector from ground,
providing a floating input to the AF analyzer.
• 600 To Hi establishes a 600-ohm impedance between the center
pins of the AUDIO IN LO and AUDIO IN HI connectors. Also, the
Ext Load R field is removed, since the load is now fixed to 600
ohms.
Screens on which this field is displayed
AF ANALYZER
Audio Out
Audio output coupling selects ac or dc coupling of the AF generator to
the AUDIO OUT connector.
Screens on which this field is displayed
RF GENERATOR
Auto/Norm
This field specifies how the trigger level is set.
• Auto automatically triggers if a triggering signal is not detected
within approximately 50 ms of the last trigger.
• Norm requires a specific triggering signal before triggering.
Operating Considerations
Automatic triggering should be used for signals >20 Hz. Normal
triggering should be used for signals ≤20 Hz.
Also, when measuring ≤1 Hz signals, you should set the Scope To field
in the AF ANALYZER screen to Input to provide dc coupling to the
oscilloscope’s input.
Screens on which this field is displayed
SCOPE: trigger controls menu
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Analog Measurements - Screens and Control Fields
Auto Zero
Cont/Single
Auto Zero
This field is displayed for average power measurements.
Auto is used to automatically zero the TX power measurement
periodically during operation.
Manual is used to override the Auto feature. When Manual is selected,
you must manually zero the TX power measurement by selecting the
TX Pwr Zero field.
Screens on which this field is present
RF ANALYZER
Center Freq
This field sets the tune frequency for the center of the spectrum
analyzer’s screen. The center frequency field is displayed when the RF
Display field on the INSTRUMENT CONFIGURE screen is set to
Freq.
Operating Considerations
This field also changes the center frequency of the tracking generator
and the RF analyzer.
Screens on which this field is displayed
SPEC ANL: main controls menu
Controls
The spectrum analyzer and oscilloscope settings are arranged in
several menus that are accessed using the Controls field. A list of menu
options is displayed when the controls field is selected.
See the descriptions for the individual control fields on each menu for
more information.
Screens on which this field is displayed
SPEC ANL: all menus
SCOPE: all menus
Cont/Single
This field specifies whether the oscilloscope is continuously triggered
(Cont), or if it is only triggered each time Reset is selected (Single).
Screens on which this field is displayed
SCOPE: trigger controls menu
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Analog Measurements - Screens and Control Fields
De-Emphasis
De-Emp Gain
De-Emp Gain
De-emphasis gain displays and selects the desired AF analyzer
de-emphasis amplifier gain.
See the "Gain Cntl" field on page 134 for more information.
Screens on which this field is displayed
AF ANALYZER
De-Emphasis
This setting selects or bypasses the 750 µs de-emphasis networks in the
audio analyzer and internal speaker circuitry.
Screens on which this field is displayed
AF ANALYZER
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Analog Measurements - Screens and Control Fields
Detector
Detector
Detector
This setting selects the type of detector used when measuring and
displaying AF signal levels.
Detector Types
• RMS displays the root mean square (rms) value of signals.
• RMS*SQRT2 displays the rms value of a signal multiplied by 2 .
• Pk+ displays the positive peak value.
• Pk− displays the negative peak value.
• Pk±/2 adds the positive and negative peak values, and divides the
sum by 2.
• Pk±Max compares the positive and negative peaks and displays the
greater value (polarity is not indicated).
• Pk+ Hold displays and holds the positive peak value until the
measurement is reset. To reset, use Meas Reset (press and release the
Shift key, then the Hold key), select a different detector, or re-select the
same detector.
• Pk− Hold displays and holds the negative peak value until the
measurement is reset. To reset, use Meas Reset (press and release the
Shift key, then the Hold key), select a different detector, or re-select the
same detector.
• Pk±/2 Hold divides the sum of the positive and negative peak
values by 2, and displays the value until the measurement is reset.
To reset, use Meas Reset (press and release the Shift key, then the Hold
key), select a different detector, or re-select the same detector.
• Pk±Mx Hold compares the positive and negative peaks and displays
the greater value until the measurement is reset. To reset, use Meas
Reset (press and release the Shift key, then the Hold key), select a
different detector, or re-select the same detector.
HP-IB Example
Operating Considerations
Screens on which this field is displayed
AF ANALYZER
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Analog Measurements - Screens and Control Fields
Filter 1
Ext Load R
Ext Load R
External load resistance is used to calculate and display AF power.
Power is calculated using the voltage measured at the AUDIO IN
connections and the resistance value you enter into this field.
This field is displayed only when the Audio In field on the AF
ANALYZER screen is set to GND or Float.
Operating Considerations
To display audio power, set the AC Level measurement’s unit of
measure to W (watts).
Screens on which this field is displayed
AF ANALYZER
Filter 1
This field selects an audio frequency filter which can be used to
condition the audio signal before it is analyzed by the audio frequency
analyzer.
The following filter choices are available:
• <20 Hz HPF
• 50 Hz HPF
• 300Hz HPF
• C MESSAGE
Operating Considerations
The audio from the Test Set’s speaker is not affected by Filter 1 or
Filter 2 settings.
Screens on which this field is displayed
AF ANALYZER
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Analog Measurements - Screens and Control Fields
Filter 2
Filter 2
Filter 2
This field selects an audio frequency filter which can be used to
condition the audio signal before it is analyzed by the audio frequency
analyzer.
The following filter choices are available:
• 300Hz LPF
• 3kHz LPF
• 15kHz LPF
• >99kHz LP
• 6kHz BPF
Operating Considerations
The audio from the Test Set’s speaker is not affected by Filter 1 or
Filter 2 settings.
Screens on which this field is displayed
AF ANALYZER
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Analog Measurements - Screens and Control Fields
Freq (marker)
FM Coupling
FM Coupling
This field alters the FM modulator to allow DCFM from internal and
external modulation sources. This field also selects ac or dc coupling
between the RF generator’s frequency modulator and the ANALOG
MODULATION IN connector.
Operating Considerations
This field should be set to DC whenever the AFGen2 To field is set to FM;
this provides better modulation response at low data rates.
Screens on which this field is displayed
RF GENERATOR
Freq (marker)
Marker frequency displays the frequency at the marker’s present
position on the spectrum analyzer.
Screens on which this field is displayed
SPEC ANL: all control menus
Figure 5-1
Freq and Lvl Display Fields
Chapter 5
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Main Menu
Analog Measurements - Screens and Control Fields
Gain Cntl
Gain Cntl
Gain Cntl
AF analyzer gain control specifies whether the AF analyzer’s gain
settings are controlled automatically by AF autoranging (Auto), or by
manual control (Hold).
The following settings are affected by AF autoranging:
• Input Gain
• De-Emp Gain
• Notch Gain
Operating Considerations
The normal mode of operation for the Gain Cntl field is Auto,
allowing the instrument to adjust the AF gain settings for optimum
measurement accuracy.
This field can be set to Hold to disable the autoranging routines to
increase measurement speed. However, this requires you to select the
desired gain settings manually for each measurement.
Autoranging Interference. After a signal is input, the RF autoranging
function (Auto) takes a small amount of time to determine the required
input attenuator setting. If your transmitter begins sending
information the instant it transmits, the initial part of the demodulated
signal may not appear on the oscilloscope. When trying to capture the
initial modulation waveform of a signal on the oscilloscope, set the
upper field to Hold and set the lower field to an appropriate level for
the signal being decoded (start with 40 dB).
Setting the upper field to Hold also prevents the RF autoranging
process from interrupting spectrum analyzer operation when a signal is
first measured. This can be helpful when you need to see the signal the
instant the source is input, but requires you to set the needed amount of
input attenuation.
Screens on which this field is displayed
AF ANALYZER
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Analog Measurements - Screens and Control Fields
Input Atten
IF Filter
IF Filter
This field selects the desired IF filter bandwidth for modulated signals
being analyzed.
Screens on which this field is displayed
RF ANALYZER
Input Atten
Input attenuation sets the amount of input attenuation for the RF
IN/OUT and ANT IN connectors. This function controls two settings:
• The upper field determines if you want the instrument to set the
attenuation automatically (Auto), or if you want to set the value
manually (Hold).
• The lower field displays the present attenuation value, and is used to
set the desired attenuation level when the upper area is set to Hold.
Operating Considerations
Autoranging Interference. After a signal is input, the RF autoranging
function (Auto) takes a small amount of time to determine the required
input attenuator setting. If your transmitter begins sending
information the instant it transmits, the initial part of the demodulated
signal may not appear on the oscilloscope. When trying to capture the
initial modulation waveform of a signal on the oscilloscope, set the
upper field to Hold and set the lower field to an appropriate level for
the signal being decoded (start with 40 dB).
Setting the upper field to Hold also prevents the RF autoranging
process from interrupting spectrum analyzer operation when a signal is
first measured. This can be helpful when you need to see the signal the
instant the source is input, but requires you to set the needed amount of
input attenuation.
Screens on which this field is displayed
RF ANALYZER
SPEC ANL: auxiliary controls menu
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Analog Measurements - Screens and Control Fields
Input Gain
Input Port
Input Gain
This field displays and selects the gain of the AF analyzer’s input
amplifier. The choices are 0 dB, 20 dB, or 40 dB. Refer to the Gain
Cntl field more information.
Screens on which this field is displayed
AF ANALZYER
Input Port
This field selects the RF IN/OUT or ANT IN port for making RF
measurements. The RF IN/OUT port must be used for making TX
power measurements.
Operating Considerations
If the RF power at the RF IN/OUT port exceeds allowable limits, a loud
warning signal sounds and a message appears at the top of the screen.
If this occurs, disconnect the RF power, reset using Meas Reset (press and
release the Shift key, then the Hold key), and allow the Test Set to cool off
for approximately two minutes before making any other measurements
on this port.
The ANT IN (antenna input) connector provides a highly-sensitive
input for very low level signals (such as “off the air” measurements).
You cannot measure TX (RF) power on the RF ANALYZER screen
using the ANT IN port.
CAUTION
Connecting a signal of >60 mW to the ANT IN port can
cause instrument damage (although internal protection
circuits can typically withstand a short-duration signal of
several Watts).
If the overpower circuit is triggered (signified by a
warning message at the top of the screen), remove the
signal from the ANT IN port, and reset using Meas Reset
(press and release the Shift key, then the Hold key) or turn
the Test Set off and on.
Maximum signal levels at the RF IN/OUT, DUPLEX OUT,
and ANT IN ports are printed on the connector panel.
Exceeding these levels can cause permanent instrument
damage.
Screens on which this field is displayed
SPEC ANL: RF IN/ANT main controls menu
RF ANALYZER
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Internal
Analog Measurements - Screens and Control Fields
Level (div)
Internal
This field selects the trigger source.
• Internal uses the signal being displayed for triggering.
• Ext (TTL) uses the EXT SCOPE TRIGGER INPUT for triggering.
This is a TTL level trigger (approximately 2.5 V).
Screens on which this field is displayed
SCOPE: trigger controls menu
Level (div)
This control is divided into two fields:
The upper field (0.00) sets the internal trigger level as a function of
vertical divisions. The trigger level is indicated by small pointers that
appear on each side of the screen (only used for internal triggering).
The lower field (Pos/Neg) specifies whether triggering happens when
the waveform being measured is positive-going (Pos), or negative-going
(Neg).
Screens on which this field is displayed
SCOPE: trigger controls menu
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Analog Measurements - Screens and Control Fields
Lvl (marker)
Lvl (marker)
Lvl (marker)
This measurement field displays the signal level of the signal at the
current marker position on the spectrum analyzer. (See Figure 5-1 on
page 133.)
Operating Considerations
The unit-of-measure for this field is dependent on the source of the
signal being measured. For instance, when measuring a signal from the
AUDIO IN connector, the amplitude is measured in Volts. When
looking at a signal from the FM demodulator, the amplitude is given in
units of kHz.
When the Vert Offset field is ≠0.00, the displayed marker level is
referenced to the center line generated by the vertical offset feature, not
the center line of the screen.
The Ref Set function can be used with this measurement to display levels
relative to a specific value. (See "Setting A Measurement Reference" on
page 45.)
Screens on which this field is displayed
SCOPE: all control menus
SPEC ANL: all control menus
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Analog Measurements - Screens and Control Fields
Marker To (spectrum analyzer)
Marker To Peak+
Marker To Peak+
Peak+ causes the marker to move to the maximum value of the average
level measured on the display.
Because this functions look at the average value for each displayed
pixel, the marker may not appear directly on the displayed peak of a
noisy signal.
Screens on which this field is displayed
SCOPE: marker controls menu
Marker To PeakPeak− causes the marker to move to the minimum value of the average
level measured on the display.
Because this functions look at the average value for each displayed
pixel, the marker may not appear directly on the displayed peak of a
noisy signal.
Screens on which this field is displayed
SCOPE: marker controls menu
Marker To (spectrum analyzer)
These two fields position the marker as follows.
• Peak moves the marker to the highest peak and enters the location
in the Position field.
• Next Peak moves the marker to the next peak to the right and
enters the location in the Position field.
• Center Freq changes the center frequency value to match the
current position of the marker.
• Ref Level changes the reference level setting to match the current
position of the marker.
Screens on which this field is displayed
SPEC ANL: marker controls menu
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Analog Measurements - Screens and Control Fields
Mod In To
No Pk/Avg
Mod In To
This modulation input field defines how an external modulation source
is used with the RF generator. Two fields are used:
• The upper field determines whether the ANALOG MODULATION
IN signal is set for AM or FM modulation of the RF GENERATOR.
• The lower field sets the modulation sensitivity. For instance, if FM
(/Vpk) is selected for the upper field, and you set the lower field to
1.0000 kHz, the RF generator will deviate 1 kHz for every 1 Volt
peak at the ANALOG MODULATION IN connector.
Screens on which this field is displayed
RF GENERATOR
No Pk/Avg
This field performs two functions:
Pk Hold (peak hold) prevents the spectrum analyzer from erasing the
previous trace each time it sweeps. This causes the traces to ‘build-up’
on the screen until Off, No Pk/Avg or measurement reset (using Meas
Reset (press and release the Shift key, then the Hold key) is performed.
This allows the capture of transient signals that are not displayed long
enough to view during normal operation.
Avg 1 through 100 (video averaging) enables the spectrum analyzer to
display a trace representing the average of several measurements. The
number of samples used for measurement averaging range from 1 to
100 (see below). No Pk/Avg and Off function identically. Off is
provided to maintain backwards compatibility with earlier firmware
and software.
• No Pk/Avg means that peak hold and video averaging are off.
• Pk Hold means that peak hold is on.
• Avg [n] enables video averaging over [n] measurements,
where n = 1, 2, 3, 4, 5, 10, 20, 50, or 100
• Off means that peak hold and video averaging are off.
Operating Considerations
After capturing the desired signal, you can use the hold function (press
Hold key) to prevent additional signals from building-up on the display.
Screens on which this field is displayed
SPEC ANL: auxiliary controls menu
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Analog Measurements - Screens and Control Fields
Notch Freq
Normalize
Normalize
This area performs three display operations:
• Save B saves the currently-displayed trace for the A-B operation.
• A only provides a continuously-updated display (the “normal” mode
of operation).
• A-B displays the difference between the trace saved using Save B
and the currently displayed trace. The comparison can yield either
losses or gains in amplitude.
Operating Considerations
The A-B function works correctly only if the center frequency and span
settings are the same for both signals.
The reference level (Ref Level) can be changed (on the Main controls
menu) to move the trace below the top line of the display if the A-B
function results in a gain.
The Hold key can be used to “freeze” the display at any time. This allows
you to view a trace before performing the Save B or A-B functions.
Screens on which this field is displayed
SPEC ANL: auxiliary controls menu
Notch Freq
This field sets the center frequency for the variable frequency notch
filter. It is typically used for distortion and SINAD measurements at
frequencies below or above the standard 1 kHz notch filter.
Operating Considerations
When the Notch Coupl field on the INSTRUMENT CONFIGURE
screen is set to AFGen1, this filter and the AFGen1 Freq field match
their settings. A warning message is then displayed if you attempt to
set the AFGen1 Freq value outside the 300 Hz to 10 kHz range of this
filter. When the Notch Coupl field is set to None, this filter and
AFGen1 Freq operate independently.
Screens on which this field is displayed
AF ANALYZER
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Analog Measurements - Screens and Control Fields
Notch Gain
Offset Freq
Notch Gain
This field displays and selects the gain of the AF analyzer’s notch filter
amplifier. This amplifier is only used for making SINAD and distortion
measurements. (See the "Gain Cntl" field on page 134 for more
information.)
Screens on which this field is displayed
AF ANALYZER
Offset Freq
Frequency offset (RF generator) sets the difference between the
instantaneous frequencies of the tracking generator and the center
frequency of the spectrum analyzer.
This field is displayed only when Track is selected in the Track/Fixed
field on the RF Gen controls menu.
Operating Considerations
The offset can be a positive or negative value. When set to zero, the
tracking generator produces a sweeping signal that matches the
spectrum analyzer’s tune frequency.
Screens on which this field is displayed
SPEC ANL: RF generator controls menu
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Analog Measurements - Screens and Control Fields
Pk Det To
Output Port
Output Port
This field selects the RF generator’s output port. Higher RF generator
levels are available at the DUPLEX OUT port than at the RF IN/OUT
port.
Operating Considerations
CAUTION
Applying reverse RF power to the DUPLEX OUT
connector can damage the instrument. (A message is
displayed when an overpower conditions occurs.)
Whenever possible, use the RF IN/OUT connector when
testing transceivers to prevent damage from accidental
transmitter keying.
If a reverse-power condition triggers the internal
protection circuit, remove the reverse-power signal and
reset using Meas Reset (press and release the Shift key, then
the Hold key) or turn the Test Set off and on to reset it.
Maximum signal levels at the RF IN/OUT, DUPLEX OUT,
and ANT IN ports are printed on the connector panel.
Exceeding these levels can cause permanent instrument
damage.
Screens on which this field is displayed
RF GENERATOR
SPEC ANL: (Fixed) RF generator controls menu
Pk Det To
This field selects the signal source for the peak detectors. This allows
you to bypass certain sections of the AF analyzer’s circuitry when
making ac-level measurements.
• Filters analyzes the signal after filtering through Filter 1.
• De-Emp analyzes the signal after filtering through Filter 1 and
Filter 2, and after de-emphasis.
Screens on which this field is displayed
AF ANALYZER
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Main Menu
Analog Measurements - Screens and Control Fields
Port/Sweep
Port/Sweep
Port/Sweep
This control performs two functions:
• The upper field specifies the output port of the tracking generator.
• The lower field specifies whether the tracking generator sweeps from
low-to-high frequencies (Norm), or from high-to-low frequencies
(Invert). (The spectrum analyzer always sweeps from low to high
frequencies.) The swept frequency range is determined by the Span
setting in the spectrum analyzer’s main controls menu.
This field is displayed only when Track is selected in the Track/Fixed
field on the spectrum analyzer’s RF Gen controls menu.
Operating Considerations
When using the tracking generator, if the output port is set to RF Out,
or the main menu Input Port is set to RF In, internal instrument
coupling can occur. For the best isolation between the tracking
generator and the spectrum analyzer, use Dupl for the output, and Ant
for the input.
For measurements on high-power devices, such as amplifiers, use the
RF IN/OUT port for the input.
Screens on which this field is displayed
SPEC ANL: RF generator controls menu
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Position
Analog Measurements - Screens and Control Fields
Position
Position
This field indicates the number of scale divisions from the left side of
the screen to the marker.
Use the DATA ENTRY keys or cursor-control knob to move the marker
to any point on the displayed signal.
Screens on which this field is displayed
SCOPE: marker controls menu
SPEC ANL: marker controls menu
Chapter 5
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Main Menu
Analog Measurements - Screens and Control Fields
Ref Level
Reset
Ref Level
Reference level sets the amplitude reference level for the top line of the
display. All signals displayed are referenced to this line.
Operating Considerations
The unit-of-measure for the reference can be changed as needed. For
instance, 0 dBm, 0.224 V, 107.0 dBmV, and 0.00100 W can all be used
to represent the same level.
Screens on which this field is displayed
SPEC ANL: main controls menu
Reset
Reset retriggers the measurement when Single triggering is selected.
See the "Cont/Single" field on page 128.
Screens on which this field is displayed
SCOPE: trigger controls menu
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Analog Measurements - Screens and Control Fields
RF Cnt Gate
RF Channel
RF Channel
The RF Channel field is displayed on the screens listed below when the
RF Display field on the INSTRUMENT CONFIGURE screen is set to
Chan.
This field displays the current channel number. Channel tuning
eliminates the need to set transmit and receive frequencies directly into
the Test Set. Once the radio’s RF channel standard is selected, you only
have to enter the channel number to automatically set the RF
Generator and RF Analyzer to the correct frequency.
Operating Considerations
To utilize the correct transmit and receive frequencies select the
appropriate channel standard from the RF Chan Std field on the
INSTRUMENT CONFIGURE screen.
The lower subfield of the RF Channel field on the spectrum analyzer’s
RF Gen controls menu also sets the RF channel standard.
Screens on which this field is displayed
RF ANALYZER
SPEC ANL: RF generator or main controls menu
RF Cnt Gate
RF counter gate specifies how long the RF counter samples the signal
before displaying the frequency. Specifying a shorter gate time may
enable you to see frequency fluctuations that might not be seen using a
longer gate time.
Screens on which this field is displayed
RF ANALYZER
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Analog Measurements - Screens and Control Fields
RF Gen Freq
RF In/Ant
RF Gen Freq
This field sets the RF generator’s frequency.
This field is displayed on the screens listed below when the RF
Display field on the INSTRUMENT CONFIGURE screen is set to
Freq.
Screens on which this field is displayed
SPEC ANL (When the Controls field is set to “RF Gen”)
RF GENERATOR
RF In/Ant
This field selects the input port for the spectrum analyzer.
Operating Considerations
Maximum signal levels are printed on the connector panel.
CAUTION
Connecting a signal of >60 mW to the ANT IN port can
cause instrument damage (although internal protection
circuits can typically withstand a short-duration signal of
several Watts).
If the overpower circuit is triggered (signified by a
warning message at the top of the screen), remove the
signal from the ANT IN port, and reset using Meas Reset
(press and release the Shift key, then the Hold key) or turn
the Test Set off and on to reset it.
Using the ANT IN port with the Sensitivity field set to High can
result in uncalibrated operation (a message appears on the screen when
this happens). The purpose for the high sensitivity setting is to allow
you to look and listen to very low level signals when absolute accuracy
is not essential.
See the "Sensitivity (spectrum analyzer)" field on page 150 for more
information.
Screens on which this field is displayed
SPEC ANL
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Analog Measurements - Screens and Control Fields
Scope To
Scope To
Scope To
This field selects the signal source for the oscilloscope. This allows you
to bypass certain sections of the AF analyzer’s circuitry when viewing
and measuring a signal. It also allows you to select measurement paths
that include additional gain stages, improving the oscilloscope’s
resolution when measuring low-level signals.
• Input looks at the unfiltered signal directly from the input.
• Filters looks at the signal after filtering through Filter 1 and
Filter 2.
• De-Emp looks at the signal after filtering through Filter 1 and
Filter 2, and after 750 µs de-emphasis (if the De-emphasis field is
set to 750 us.)
• Notch looks at the signal after filtering through Filter 1 and Filter
2, after de-emphasis (if used), and after the notch filter.
Screens on which this field is displayed
AF ANALYZER
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Sensitivity (RF analyzer)
Sensitivity (spectrum analyzer)
Sensitivity (RF analyzer)
RF analyzer sensitivity adds about 6 dB of sensitivity for the ANT IN
port when High is selected and the Input Atten field is set to 0 dB.
Operating Considerations
Selecting High sensitivity may cause spectrum analyzer measurements
to be uncalibrated when the ANT IN port is used (a message appears
when this occurs).
High-level AM measurements may be distorted when high sensitivity is
used with the ANT IN port.
Screens on which this field is displayed
RF ANALYZER
Sensitivity (spectrum analyzer)
This area performs two functions:
• The lower field selects the vertical resolution of the display. You can
choose from 1 dB, 2 dB, or 10 dB per graticule.
• The upper field selects Normal or High sensitivity for the RF input.
The High setting adds about 6 dB of sensitivity to the ANT IN port
(when the Input Atten field is set to 0 dB) for looking at very low
level signals. However, this setting can cause measurements to be
uncalibrated (indicated by a message on the screen). High
sensitivity can also cause high-level AM signals to be distorted.
Screens on which this field is displayed
SPEC ANL: auxiliary controls menu
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Analog Measurements - Screens and Control Fields
Span
Settling
Settling
This field selects the settling time for making AF measurements. Lower
frequency signals require additional settling time (Slow). Higher
frequency measurements require less settling time (Fast).
Operating Considerations
Use Slow for ≤200 Hz signals. Use Fast for >200 Hz signals.
If the signal being measured is a composite of different frequencies
above and below 200 Hz, select the appropriate filtering to analyze the
desired signal component.
Screens on which this field is displayed
AF ANALZYER
Span
Sets the span of frequencies to be displayed on the screen.
Operating Considerations
When the tracking generator is used, the span also defines the
frequency sweep range.
Spans >1.5 MHz disable the AF analyzer when the analyzer’s AF Anl
In field is set to FM Demod, AM Demod, or SSB Demod. This disables all
the AF analyzer’s measurement and output functions. When the AF
analyzer’s AF Anl In field is set to any of the other available inputs,
such as Audio In or Ext Mod, the speaker and SCOPE MONITOR
OUTPUT are not affected when the spectrum analyzer’s span is
changed.
Screens on which this field is displayed
SPEC ANL: main controls menu
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Speaker ALC
Speaker Vol
Speaker ALC
Speaker automatic level control enables/disables the ALC function for
the instrument’s internal speaker. When On is selected, the speaker
volume is independent of the signal level being measured. When Off is
selected, the speaker volume is dependent on the signal level being
measured.
Screens on which this field is displayed
AF ANALYZER
Speaker Vol
Speaker Volume enables/disables the instrument’s internal speaker.
When Pot is selected, the VOLUME control knob operates normally.
When Off is selected, the speaker is disconnected.
Screens on which this field is displayed
AF ANALYZER
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Squelch
Squelch
Squelch
This setting determines the squelch operation when demodulating FM,
AM, or SSB signals. Three settings are available:
• Pot uses the front-panel SQUELCH knob for squelch level
adjustment.
• Open disables squelch operation.
• Fixed sets the squelch to a fixed level, disabling the front-panel
SQUELCH knob control.
Operating Considerations
Most measurements are not displayed on the screen if the incoming
signal falls below the squelch level (with the exception of TX Power).
The measurements are replaced by four dashes (- - - -) to indicate they
have been squelched.
Oscilloscope measurements are also disabled when the signal has been
squelched.
Spectrum analyzer measurements are not affected by the squelch
setting (although squelch still affects whether the demodulated signal
can be heard while viewing the RF signal).
Trying to read a squelched measurement using HP-IB will cause your
program to halt until the squelch is either turned down, a measurement
is made, or until a program time-out aborts the measurement.
Screens on which this field is displayed
RF ANALYZER
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Analog Measurements - Screens and Control Fields
Time
Track/Fixed
Time
This measurement displays the time elapsed from the trigger point to
the current marker position.
The Ref Set function can be used with this measurement to display time
relative to a specific position. (See "Setting A Measurement Reference"
on page 45.)
Screens on which this field is displayed
SCOPE: all control menus
Time/div
This field selects the horizontal sweep time per division.
Operating Considerations
The time-per-division is selected from a list of choices.
Screens on which this field is displayed
SCOPE: main controls menu
Track/Fixed
When this field is set to Track, the tracking generator is enabled. The
tracking generator performs a frequency sweep operation. The start
and stop frequencies are determined by the Span setting (main controls
menu). The tracking generator allows you to characterize devices (such
as filter networks) over wide span of frequencies.
An RF offset can be set between the tracking generator and the center
frequency of the spectrum analyzer. This allows you to look at a signal
that is related to a source whose frequency is outside the displayed
span.
Screens on which this field is displayed
SPEC ANL: RF generator controls menu
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Trig-Delay
Trig-Delay
Trig-Delay
The trigger delay is used to specify the time relationship between the
trigger and displayed signal.
• Positive values delay the measurement trigger by a specific
period. The delayed trigger point is the left edge of the screen.
• Negative values perform a pre-trigger function, displaying a
section of the waveform before the trigger point. The trigger point is
indicated by small pointers that appear at the top and bottom of the
screen.
Operating Considerations
Negative Value. The maximum negative delay cannot exceed ten
divisions of the current time-per-division setting. For example; if the
Time/Div field is set to 1 ms, the maximum allowed negative delay is
−10 ms. Larger negative numbers cause an Excessive negative
Trig-Delay will be truncated. message.
Positive Values. For Time/Div settings of 50 ms/div and smaller, the
maximum delay is 400 ms.
For Time/Div settings of 100 ms/div and larger, the maximum delay is
3200 ms.
Resolution. For delays of 400 ms and less, the resolution is 6.4 ms. For
delays greater than 400 ms, the resolution is 51.2 ms. All entries are
rounded to the nearest multiple of 6.4 ms or 51.2 ms (depending on the
delay value).
Screens on which this field is displayed
SCOPE: trigger controls menu
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Tune Freq
TX Pwr Meas
Tune Freq
This field is displayed when the RF Display field on the
INSTRUMENT CONFIGURE screen is set to Freq.
RF analyzer tune frequency sets the center frequency for the RF signal
to be analyzed.
Screens on which this field is displayed
RF ANALYZER
TX Pwr Meas
The transmitter power measurement field specifies how transmitter
power measurements are made:
• Peak can be used to measure AM, FM, and un-modulated (CW)
signals.
• Sample can be used to measure FM or CW signals with increased
measurement speed. This method can only be used with signals
having no amplitude modulation component.
Operating Considerations
If you change this field, zero the power measurement (using the TX Pwr
Zero field) before measuring power.
Screens on which this field is displayed
RF ANALYZER
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TX Pwr Zero
TX Pwr Zero
TX Pwr Zero
The transmitter power zero function establishes a 0.0000 W reference
for measuring RF power at the RF IN/OUT port.
Operating Considerations
When power is applied to the RF IN/OUT connector, the temperature of
the internal circuitry increases. This can cause changes in the TX
power measurement when low power levels are measured immediately
following high power measurements.
When alternately making high and low power measurements, always
zero the power meter immediately before making the low power
measurements; this provides the best measurement accuracy.
If the Auto Zero field is set to Auto, the TX power measurement is
periodically zeroed (automatically). Manual calibration is only needed if
Auto Zero is set to Manual, or if you are measuring highly variable
signal levels (as mentioned above).
Screens on which this field is displayed
RF ANALYZER
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Vert/div
Vert Offset
Vert/div
Vertical sensitivity sets the vertical amplitude per division.
Operating Considerations
The value for this field is selected from a list of choices.
Depending on the AF analyzer’s AF Anl In setting, the units for this
field may be in Volts, kHz, or Percent (AM). For example; if the AF Anl
In field is set to FM Demod, the amplitude is displayed in kHz/div.
Screens on which this field is displayed
SCOPE: main controls menu
Vert Offset
Vertical offset moves the displayed signal above or below the
oscilloscope’s fixed centerline.
Operating Considerations
A centerline is displayed for the signal when an offset is used.
When the vertical offset is ≠0.00, the marker level is referenced to the
center line generated by the vertical offset feature, not the center line of
the screen.
Screens on which this field is displayed
SCOPE: main controls menu
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6
Configuration - Screens and
Control Fields
• "Configuring the Instrument" on page 160
• "Setting the Date and Time" on page 160
• "Changing the Beeper’s Volume" on page 160
• "Turning Off User Messages" on page 160
• "Configuring for Printing A Screen" on page 161
• "Control Fields on the Configuration Screens" on page 162
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Main Menu
Configuration - Screens and Control Fields
Setting the Date and Time
Turning Off User Messages
Configuring the Instrument
Setting the Date and Time
The Test Set has a built-in clock that keeps track of the date and time.
It is powered by an internal battery to keep it operating when the
instrument is off.
To set the date and time
Step 1. Access the INSTRUMENT CONFIGURE screen.
Step 2. Select the Date field and use the DATA ENTRY keys to enter
the date (MMDDYY -- October 31, 1997 = 103197).
Step 3. Select the Time field and use the DATA ENTRY keys to enter
the time (HH.MM -- 2:13 pm = 14.13).
Changing the Beeper’s Volume
The beeper alerts you to important operating and measurement
conditions. It beeps any time a message is displayed at the top of the
screen. These messages warn you of conditions such as exceeding the
RF input level or trying to set a field to an unacceptable value.
Therefore, it is recommended that you do not disable the beeper.
To change the beeper’s volume
Step 1. Access the INSTRUMENT CONFIGURE screen.
Step 2. Select the Beeper field to display the volume choices.
Step 3. Select the desired choice.
Turning Off User Messages
To turn off user messages
Step 1. Access the INSTRUMENT CONFIGURE screen.
Step 2. Set the Display User Mssgs field to No.
To display user messages
Step 1. Access the INSTRUMENT CONFIGURE screen.
Step 2. Set the Display User Mssgs field to Yes.
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Printing a Screen
Printing a Screen
Configuring for Printing A Screen
Printing a Screen
To Print A Screen’s Contents
Step 1. Connect a printer to the appropriate connector (SERIAL 9,
PARALLEL 15, HP-IB).
Step 2. Go to the PRINTER CONFIGURE screen set the Printer
Port: field to the appropriate type of printer connection.
If HP-IB is selected, enter the HP-IB address (Printer Adrs)
of the printer.
Step 3. Select the type of printer you are using in the Model field. If
your printer is not listed, configure your printer to emulate
one that is listed. (Some Windows1-only printers are not
supported.)
Step 4. Enter a Print Title if desired. This text will appear at the
top of your printout.
a. Use the knob to select letters, numbers, or symbols from
the list (up to 50 characters).
b. Select Done from the list when you have finished the title.
Step 5. Display the screen you want to print and press Print.
To interrupt printing
Step 1. Go to the PRINTER CONFIGURE screen.
Step 2. Select the Abort Print field.
1. Windows is a U.S. trademark of Microsoft Corp.
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Abort Print
Antenna In
Control Fields on the Configuration Screens
Abort Print
Select this field to interrupt the printing job in progress.
Abort Print is not directly programmable over the HP-IB.
Screen(s) Where Field is Present
PRINTER CONFIGURE
Antenna In
This field is used to indicate losses or gains between the ANT IN port
and the device-under-test.
Enter a positive value to indicate a gain (such as an amplifier). The
spectrum analyzer’s marker level (Lvl) measurement is automatically
reduced by that amount. The spectrum analyzer’s Ref Level is
automatically decreased by the same amount, so the trace position does
not appear to change.
Enter a negative value to indicate a loss (such as cable loss). The
spectrum analyzer marker’s level (Lvl) measurement is automatically
increased by that amount. The spectrum analyzer’s Ref Level is
automatically increased by the same amount, so the trace position does
not appear to change.
This field is only used when the RF Level Offset field is set to On.
See "RF Level Offset" on page 178.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Base Freq (User Defined)
Base Freq (User Defined)
Base Freq (User Defined)
The base frequency field sets the RF generator reference for channel 0
(zero) when the RF Chan Std field is set to USER-DEF, and the RF
Display field is set to Chan.
Channel frequencies are calculated using the following formula:
Channel N = Base Frequency + (N)(Channel Spacing)
The Base Frequency is calculated using the following formula:
Base Frequency = Channel 1 Frequency − Channel Spacing
For example, if your multi-channel radio’s lowest receive channel
frequency is 870.030 MHz and the system channel spacing is 30 kHz,
you would enter 870 MHz in this field. You would also use the Chan
Space and (Gen)-(Anl) fields to tell the Test Set where other
transmit and receive channel frequencies are in relation to the base
frequency, and whether or not the system is duplex.
For more information see the following related topics:
"Chan Space (User Defined)" field on page 164
"(Gen)-(Anl)" field on page 169
"RF Chan Std" field on page 175
"RF Display" field on page 176
Operating Considerations
The value of this field is only used if the RF Display field is set to
Chan, and the RF Chan Std field is set to USER-DEF.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Beeper
Chan Space (User Defined)
Beeper
This field changes the audio beeper volume by selecting the desired
level from a list of choices (Off, Quiet, Loud). The beeper always beeps
when the instrument is turned on, regardless of this setting.
Operating Considerations
The beeper alerts you any time a message is displayed. Since a message
may be removed from the screen before you notice it, it is better to leave
the beeper on to alert you to errors during operation.
The beeper’s volume setting is retained when the instrument is turned
off.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
Chan Space (User Defined)
This field specifies the RF channel spacing when the RF Display field
is set to Chan, and the RF Chan Std field is set to USER-DEF.
For example, entering 25 kHz causes a 25 kHz spacing between each
channel. If the receive frequency for channel 1 is 150.500 MHz, channel
2’s receive frequency would be 150.525 MHz.
Operating Considerations
The value of this field is only used if the RF Display field is set to
Chan, and the RF Chan Std field is set to USER-DEF.
For more information see the following related topics:
"Base Freq (User Defined)" field on page 163
"(Gen)-(Anl)" field on page 169
"RF Chan Std" field on page 175
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Display User Messages
Data Length
Data Length
This field specifies the number of bits used for each word of serial data
when using the serial port.
This setting is retained when the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIGURE
Date
This field specifies the current date for the internal clock. The date can
be read by a controller using HP-IB and printed on test results.
The format is MMDDYY (Month Day Year), using two digits for each
term. When entering months January through September (01-09), the
leading zero is not displayed when entered. Example; May 5, 1993 is
entered as 050593, but is displayed as 50593.
The internal clock still functions when the instrument is turned off.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
Display User Messages
This field controls whether or not user messages and prompts are
displayed at the top of the screen when a user action is required or an
error occurs.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Duplex Out
Ext Ref In
Duplex Out
This field is used to indicate losses or gains between the DUPLEX OUT
port and the device-under-test.
• Enter a positive value to indicate a gain (such as an amplifier gain).
The RF generator’s level is automatically set that amount below
what is indicated in the RF generator’s Amplitude field. (Example;
if this value is 10 dB, and the Amplitude field shows 0 dBm, the
actual level out this port is −10 dBm.) The value at the output of the
external amplifier should then be at the level indicated in the
Amplitude field.
• Enter a negative value to indicate a loss (such as cable loss). The RF
generator’s level is automatically set that amount above what is
indicated in the RF generator’s Amplitude field to compensate. The
value at the opposite end of the cable (loss) should then be at the
level indicated in the Amplitude field; unless the resulting RF
generator setting exceeds the maximum output level, then an error
occurs: Input value out of range. In that case, reduce the
Amplitude setting, or decrease the Duplex Out value.
This field is only used when the RF Level Offset field is set to On.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
Ext Ref In
This field selects the reference frequency of the signal at the EXT REF
IN connector. You can select 1, 2, 5, or 10 MHz; 1x, 2x, 4x, 8x, or 16x
chip.
Operating Considerations
This signal is used as a reference for, and directly affects, these
functions:
•
•
•
•
•
RF Generator Frequency (including the Tracking Generator)
RF Frequency Counter
AF Frequency Counter
RF Analyzer Tune Frequency
Spectrum Analyzer Center Frequency
AF generators 1 and 2 are not affected by the external reference; they
use their own reference.
See "EXT REF IN" on page 189 for more information.
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Firmware
FF at End:
FF at End:
This field is used to specify if you want the printer to make a form feed
(blank page) at the end of printing.
Screen(s) Where Field is Present
PRINTER CONFIGURE
FF at Start:
This field is used to specify if you want the printer to make a form feed
(blank page) at the start of printing.
Screen(s) Where Field is Present
PRINTER CONFIGURE
Firmware
This field displays the current firmware revision for your Test Set. The
revision number is automatically changed when updated firmware is
installed.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Flow Control
Flow Control
Flow Control
The flow control field is used when sending or receiving serial data.
• None disables the Xon/Xoff function.
• Xon/Xoff lets the Test Set “talk/listen” to the transceiver to alter
the rate of the data being sent.
• Hardware uses the serial port’s RTS and CTS lines to transfer data
at high baud rates.
NOTE
Do not turn flow control on (set Flow Cntl to Hardware
in the I/O CONFIGURE screen) for the serial port until
you have a device attached to the port that can respond to
the flow control communications.
Example: You have a printer attached to SERIAL PORT 9.
Before you run any IBASIC software (for example, the
RFTOOLS program), you must make sure that the printer
is properly connected and that its power is turned on.
Operating Considerations
This setting is retained when the instrument is turned off.
Baud rates of 38400 and above must use Hardware flow control.
Screen(s) Where Field is Present
I/O CONFIGURE
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(Gen)-(Anl) (User Defined)
Frame Clock Output
Frame Clock Output
This field selects the frame clock signal to send to the FRAME CLOCK
OUT connector.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
(Gen)-(Anl)
This field is used with the RF Offset field to specify the amount of
frequency offset between the RF generator and RF analyzer.
This field is always displayed when the RF Display field is set to
Freq.
See "Setting an RF Generator/Analyzer Offset" on page 47 for more
information.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
(Gen)-(Anl) (User Defined)
This field defines the receiver-transmitter frequency offset when using
user-defined channel operation.
Use a positive value (such as 45 MHz) when the radio’s receive
frequency is higher than the transmit frequency.
Use a negative value (such as −45 MHz) when the radio’s receive
frequency is lower than the transmit frequency.
Operating Considerations
The value of this field is only used if the RF Display field is set to
Chan, and the RF Chan Std field is set to USER-DEF.
For more information see the following related topics:
"Chan Space (User Defined)" field on page 164
"RF Chan Std" field on page 175
"RF Display" field on page 176
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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HP-IB Adrs
Inst Echo
HP-IB Adrs
This field is used to display and change the HP-IB address of the Test
Set.
Operating Considerations
The address can be set from 0 to 30 by using the DATA keys, or by
pushing and then turning the cursor-control knob.
This setting is retained when the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIGURE
IBASIC Echo
This field enables/disables screen and error message echoing from
IBASIC.
This setting is retained when the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIGURE
Inst Echo
This field enables/disables character and screen echoing when using an
external ASCII RS-232 terminal or computer to enter or edit IBASIC
programs.
This setting is retained when the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIGURE
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Notch Coupl
Lines/Page:
Lines/Page:
This field is used to specify how many lines are printed per page.
Screen(s) Where Field is Present
PRINTER CONFIGURE
Mode
This field sets the HP-IB operating mode. Talk&Lstn is used for
normal HP-IB operation. Control is used to control external
instruments using the Test Set.
This setting is retained when the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIGURE
Model:
This field is used to specify the type of printer used. If your printer is
not listed in the Choices menu when you select this field, configure
your printer to emulate one of those that is listed. (Some Windows-only
printers are not supported.)
Screen(s) Where Field is Present
PRINTER CONFIGURE
Notch Coupl
This field selects if the Notch Freq setting of the AF ANALYZER
screen is coupled to the AF Gen1 Freq setting. When set to None, the
notch filter and AF generator 1 do not interact. When set to AFGen1
(coupled), the settings track each other unless the AF generator’s
frequency is set outside the 300 Hz to 10 kHz limits of the notch filter.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Opt CDMA TB
Print Title:
Opt CDMA TB
This control is provided for future enhancements. It must be set to
Internal until options are available.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
Parity
This field specifies the serial communication parity setting when using
the serial ports.
This setting is retained when the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIGURE
Printer Port:
This field is used to select the port your printer is connected to
(Parallel 15, Serial 9, HP-IB).
Screen(s) Where Field is Present
PRINTER CONFIGURE
Print Title:
This field is used to enter up to 50 characters to be displayed at the top
of the printout.
Screen(s) Where Field is Present
PRINTER CONFIGURE
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Range Hold
Range Hold
Range Hold
These fields enable/disable several autoranging and autotuning
routines.
Auto All enables these routines, providing automatic adjustment
when making AF or RF measurements.
Hold All disables these routines, requiring you to manually set the
affected settings.
The following fields are affected by the Range Hold field:
• Input Atten in the RF ANALYZER and SPEC ANL screens.
• Gain Cntl in the AF ANALYZER screen. This field controls three
AF gain setting fields:
Input Gain
De-Emp Gain
Notch Gain
Operating Considerations
The Hold All setting is primarily used when the instrument is
operated by remote control, such as in an automated test system.
Unless you have very specific reasons for disabling the automatic
functions, you should set this field to Auto All when operating the
instrument manually.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Ref Select
Ref Select
Ref Select
This field selects the timebase reference signal to use for generating
and analyzing signals.
• Auto automatically selects an external reference if a signal of
sufficient level is detected at the EXT REF IN.
• Internal uses the Test Set’s internal timebase and ignores signals
connected to the EXT REF IN connector.
• External requires a valid reference signal to be connected to the
EXT REF IN connector.
Operating Considerations
The front-panel REFERNCE indicators show which source is selected
and whether or not the timebase is phase locked. The Test Set will not
operate correctly if it is unlocked.
Locking to an external reference may take several seconds. The lower
the frequency the longer it may take to lock to the signal.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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RF Chan Std
RF Chan Std
RF Chan Std
Use the RF channel standard field to select the channel standard for
the radio-under-test. The RF generator’s and the RF analyzer’s
frequencies are automatically set to correspond to the channel number
entered in the RF Channel field. RF Channel replaces the RF Gen
Freq and Tune Freq fields on several screens when the RF Display
field on the INSTRUMENT CONFIGURE screen is set to Chan.
Each standard has a prefix code that indicates what type of radio to
test; mobile station (MS) or land station (LS). For example, if you are
testing an AMPS base station, select LS AMPS.
For the NAMPS standards, a third letter is added indicating which
frequency band is used: upper, middle, or lower. For example, when
testing a base station using the upper band you would select
LSU NAMPS.
The USER-DEF selection is used to define your own channel
assignments. When selected, you enter the Base Freq, Chan Space,
and (Gen)-(Anl) settings.
For more information see the following related topics:
"Base Freq (User Defined)" field on page 163
"Chan Space (User Defined)" field on page 164
"(Gen)-(Anl)" field on page 169
Operating Considerations
The channel standard can also be changed in the lower subfield of the
RF Channel field on the SPEC ANL, RF GENERATOR, and RF
ANALYZER screen.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Configuration - Screens and Control Fields
RF Display
RF Gen Volts
RF Display
This field selects the format for entering the RF generator’s and RF
analyzer’s frequencies:
• When Freq is selected, you enter the RF generator’s and the RF
analyzer’s frequencies directly using the keypad or knob.
• When Chan is selected, the RF Gen Freq and Tune Freq fields on
all screens are replaced by the RF Channel field, and only the
channel number is entered and displayed.
Channel tuning eliminates the need to enter transmit and receive
frequencies directly into the Test Set. Once your radio’s RF channel
standard is selected, you only have to enter the channel number to
automatically set the RF generator and RF analyzer to the correct
frequencies.
Operating Considerations
See the "RF Chan Std" field on page 175 for more information.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
RF Gen Volts
This field specifies whether you want RF voltages expressed as the
voltage across a 50 ohm load, or the open circuit voltage (emf).
Operating Considerations
This setting affects the RF generator’s and the tracking generator’s
amplitudes.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Configuration - Screens and Control Fields
RF In/Out
RF In/Out
RF In/Out
This field is used to indicate losses or gains between the RF IN/OUT
port and the device-under-test.
• Enter a positive value to indicate a gain (such as an amplifier gain).
When the RF IN/OUT port is used as an output, the RF generator’s
(or tracking generator’s) level is automatically set the specified
amount below what is indicated in the RF generator’s Amplitude
field. Example; if this value is 10 dB, and the Amplitude field shows
0 dBm, the actual level out of this port is −10 dBm.
When this port is used as an input, the TX Power measurement and
spectrum analyzer’s marker level (Lvl) are automatically reduced by
that amount.
• Enter a negative value to indicate a loss (such as cable loss). The RF
generator’s (or tracking generator’s) level out this port is
automatically set that amount above what is indicated in the RF
generator’s Amplitude field.
When used as an input, the TX Power and the spectrum analyzer’s
marker level (Lvl) measurements are increased by that amount.
This field is only used when the RF Level Offset field is set to On.
See the "RF Level Offset" field on page 178 for more information.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
Chapter 6
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Main Menu
Configuration - Screens and Control Fields
RF Level Offset
RF Offset
RF Level Offset
This field enables/disables the RF level offsets entered in the RF
In/Out, Duplex Out, and Antenna In fields below it.
• When set to On, the RF generator’s amplitude and RF analyzer’s
power measurement are offset by the values entered in these fields.
• When set to Off, the values in these fields are ignored.
For more information see the following related topics:
"Antenna In" field on page 162
"Duplex Out" field on page 166
"RF In/Out" field on page 177
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
RF Offset
This field is displayed when the RF Display field is set to Freq.
This field enables/disables the RF generator−RF analyzer frequency
offset specified in the (Gen)-(Anl) field below it.
Operating Considerations
When an RF offset is used, changing the RF generator’s frequency or
RF analyzer’s tune frequency automatically alters the other setting.
See "Setting an RF Generator/Analyzer Offset" on page 47 for more
information.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Chapter 6
Main Menu
Configuration - Screens and Control Fields
Save/Recall
Save/Recall
Save/Recall
This field specifies which memory device the Test Set accesses when the
save and recall functions are used.
• Internal is a section of internal RAM. RAM is also used for
running IBASIC programs, which may require you to delete the
save/recall registers if the program is very large.
• Card is the front-panel MEMORY CARD (PC card) slot. A
Save/Recall Device is not Present message is displayed if
you try to save or recall an instrument setup when a write-able PC
card is not installed in the Test Set.
• RAM refers to RAM disks that you can create on internal RAM. Refer
to the Programmer’s Guide for information on creating RAM Disks.
This is part of the same memory used when “internal” is specified,
and may have to be erased when loading very large IBASIC
programs. A Save/Recall Device is not initialized
message is displayed if you try to save or recall an instrument setup
when a RAM disk has not been created.
Screen(s) Where Field is Present
I/O CONFIGURE
Chapter 6
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Main Menu
Configuration - Screens and Control Fields
Serial Baud
Serial No.
Serial Baud
This field selects the baud rate for serial communications when using
the serial ports. Selecting this field displays a list of baud rate choices.
This setting is maintained after the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIUGRE
Serial_9 In
This field selects the destination of characters received by the Test Set
on the SERIAL PORT 9.
• Inst configures the serial port to connect to an external ASCII
terminal or computer to enter IBASIC programs, or to control the
Test Set using an external keyboard.
• IBASIC is used to allow the IBASIC controller to read the serial port
while a program is running.
Operating Considerations
If a serial printer is connected, the PRINT command causes the printer
to take control of the serial port until printing is done.
This setting is maintained after the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIGURE
Serial No.
This field displays the serial number of the Test Set.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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Chapter 6
Main Menu
Configuration - Screens and Control Fields
Total RAM
Stop Length
Stop Length
This field specifies the number of stop bits (1 or 2) used for serial
communications when using the serial port.
This setting is maintained after the instrument is turned off.
Screen(s) Where Field is Present
I/O CONFIGURE
Time
This field sets the time-of-day for the instrument’s 24 hour clock.
(Example, 4:53 PM is entered 16:53)
Operating Considerations
The internal clock still functions when the instrument is turned off.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
Total RAM
This field displays the total amount of RAM available for IBASIC
programs and save/recall registers.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
Chapter 6
181
Main Menu
Configuration - Screens and Control Fields
Total RAM
Total RAM
182
Chapter 6
Main Menu
7
Connectors
Alphabetical Listing of "Connectors" on page 184
183
Main Menu
Connectors
10 MHz REF OUT
ANALOG MODULATION IN
Connectors
10 MHz REF OUT
This connector furnishes a 10 MHz reference for external instruments.
Operating Considerations
NOTE
The reference output frequency is always 10 MHz,
independent of the selected input reference frequency.
16 × CHIP CLOCK 19.6608 MHz OUT
This output provides a 19.6608 MHz (16 times the CDMA chip rate)
square wave with a 50% duty cycle. This signal comes from the CDMA
frame clocks.
ANALOG MODULATION IN
This connector provides an external modulation connection to the RF
generator.
Operating Considerations
The Mod In To field of the RF GENERATOR screen sets the type of
modulation (AM or FM).
The FM Coupling field on the RF GENERATOR screen selects ac or dc
coupling of this signal for FM operation.
184
Main Menu
Connectors
ANT IN
ANT IN
ANT IN
The antenna input is used for analyzing low-power RF signals
(≤60 mW), and is typically used for off-the-air measurements. This port
can be selected in the RF ANALYZER, or SPEC ANL screens.
CAUTION
Connecting a signal of >60 mW to the ANT IN port can
cause instrument damage (although internal protection
circuits can typically withstand a short-duration signal of
several Watts).
If the overpower circuit is triggered (signified by a
warning message at the top of the screen), remove the
signal from the ANT IN port, and reset using Meas Reset
(press and release the Shift key, then the Hold key) or turn
the Test Set off and on to reset it.
Operating Considerations
TX power cannot be measured using this port; use the RF IN/OUT port.
However, low power levels can be measured using this port with the
spectrum analyzer.
Additional sensitivity for this port is available using the Sensitivity
field in the RF ANALYZER and SPEC ANL screens.
185
Main Menu
Connectors
AUDIO IN
AUDIO IN
AUDIO IN
Two connectors are used to input audio signals to the AF analyzer:
• HI is the main audio signal input connection.
• LO is used for the audio signal reference. Three choices are available
using the AF ANALYZER screen’s Audio In Lo field:
• Gnd connects the center pin through approximately 100Ω to
chassis ground.
• Float is a floating input.
• 600 To Hi provides a 600Ω internal load to match an audio
source with an output impedance of 600Ω.
The measured level is the potential between the HI and LO center pins.
The shells of both connectors are at chassis ground.
For more information see the "AF Anl In" field on page 123, and the
"Audio In Lo" field on page 127.
Operating Considerations
Input impedance is switchable between 1 MΩ in parallel with 95pF, or
600Ω floating.
This port is selected as the AF analyzer’s input using the AF Anl In
field on the AF ANALYZER screen.
Signals input to the AF analyzer are routed through different filters,
amplifiers, and detectors that affect the displayed measurement.
CAUTION
The maximum level between the HI and LO center pins is
42 V peak (approximately 30 Vrms). Exceeding this value
can cause permanent instrument damage.
186
Main Menu
Connectors
AUDIO OUT
BASEBAND OUT (I and Q)
AUDIO OUT
This port is used to output signals from audio frequency generators 1
and 2.
Operating Considerations
The output level is set by the AF generators and is not affected by the
front-panel VOLUME control.
AC/DC coupling is selected using the Audio Out field. This field is
available on the RF GENERATOR screen.
BASEBAND OUT (I and Q)
These outputs provide buffered versions of the I and Q drive signals.
Operating Considerations
The I and Q drive signals are balanced by DACs that provide the correct
dc offset for the I/Q modulator.
187
Main Menu
Connectors
Chassis Ground
DUPLEX OUT
Chassis Ground
The chassis ground terminal provides a general chassis connection.
CHIP CLOCK 1.2288 MHz OUT
This output provides a 1.2288 MHz (CDMA chip rate) square wave with
a 50% duty cycle. This signal comes from the CDMA frame clocks.
DATA IN
This connector provides a data input to the CDMA generator.
DUPLEX OUT
This connector is an output for the RF generator and tracking
generator.
Operating Considerations
The RF generator’s output is selected in the Output Port field. This
field is available on the RF GENERATOR, and SPEC ANL screens.
CAUTION
Connecting an RF source of >60 mW to this connector can
permanently damage the instrument.
188
Main Menu
Connectors
EVEN SECOND SYNC IN
EXT SCOPE TRIG IN
EVEN SECOND SYNC IN
This port is an input for the even second clock from the base station
under test. A positive edge on this connector starts two timers. One
timer, after reaching terminal counts, starts CDMA frame clocks. The
other timer starts pilot PN sequence generation. The Even Sec In
field on the CDMA GENERATOR screen controls this port. See the
"Even Sec In" field on page 100.
EXT REF IN
This connector allows you to input an external reference. The reference
frequency is selected using the Ext Ref In file on the INSTRUMENT
CONFIGURE screen.
Operating Considerations
When a valid signal is applied to the EXT REF IN port, the Test Set
automatically switches from internal to external reference if the Ref
Select field is set to Auto.
This signal is used as a reference for, and directly affects, these
functions:
RF Generator Frequency (including the Tracking Generator)
RF Frequency Counter
AF Frequency Counter
RF Analyzer Tune Frequency
Spectrum Analyzer Center Frequency
AF generators 1 and 2 are not affected using an external reference; they
use their own reference.
NOTE
The reference output frequency is always 10 MHz,
independent of the selected input reference frequency.
Electrostatic discharges to the EXT REF IN port of 0.5 kV
or above may cause degradation of performance requiring
operator intervention.
EXT SCOPE TRIG IN
This connector provides an external oscilloscope’s trigger input.
Operating Considerations
When measured with no load on the input, a 5 Volt level is present on
the connector due to the internal pull-up resistor design.
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Main Menu
Connectors
FRAME CLOCK OUT
HP-IB
FRAME CLOCK OUT
This output provides an external connection to several internal clocks.
The clocks are selected using the Frame Clock Output field on the
INSTRUMENT CONFIGURE screen. The frame clock selections are as
follows:
•
•
•
•
20.00 ms
26.67 ms
80.00 ms
2.00 s
HP-IB
This connector is optional on the Test Set.
This connector allows communication between the Test Set and other
instruments or computers using the Hewlett-Packard Interface Bus
(HP-IB).
For more information see the "HP-IB Adrs" field on page 170.
190
Main Menu
Connectors
MEMORY CARD Slot
PARALLEL PORT 16
MEMORY CARD Slot
This front-panel opening is where PC cards are inserted.
PARALLEL PORT 15
This port is used with printers requiring a parallel interface when
printing screen images or test results. Set the Printer Port: field (on
the PRINTER CONFIGURE screen or TESTS (Printer Setup) screen)
to Parallel to print to this port. Use address PARALLEL_15 when
sending data to this port from IBASIC programs.
Pin numbers are embossed on the connector. Pin assignments are as
follows:
Figure 7-1 Parallel Port Pin Assignments
Pin 1
nStrobe
Data 1 (LSB)
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8 (MSB)
nAck
Busy
PError
Select
Pin 13
Pin 14
nAutoFD
NFault
nInit
nSelectIn
Signal Ground (nStrobe)
Signal Ground (Data 1 and Data 2)
Signal Ground (Data 3 and Data 5)
Signal Ground (Data 5 and Data 6)
Signal Ground (Data 7 and Data 8)
Signal Ground (Busy nFault)
Signal Ground (PError, Select, and NAck)
Signal Ground (nAutoFD, nSelectIn, and Init)
Pin 25
PARALLEL PORT 16
PARALLEL PORT 16 is reserved for future enhancements.
191
Main Menu
Connectors
RF IN/OUT
SCOPE MONITOR OUTPUT
RF IN/OUT
This Type-N connection is used to output signals from the RF generator
and to input RF signals.
CAUTION
Overpower Damage — Refer to the Test Set’s connector
panel for maximum input power level. Exceeding this level
can cause permanent instrument damage.
If the RF power at the RF IN/OUT port exceeds allowable
limits, a loud warning signal sounds and a message
appears at the top of the screen. If this occurs, disconnect
the RF power, reset using Meas Reset (press and release the
Shift key, then the Hold key), and allow the Test Set to cool
off for approximately 2 minutes before making any other
measurements on this port.
Operating Considerations
This port must be used when measuring TX (RF) power.
Signals ≤60 mW can be input to the ANT IN connector for all RF
measurements except TX Power.
This port can be selected on the RF ANALYZER, or SPEC ANL screens.
SCOPE MONITOR OUTPUT
This connector provides an external output from the AF analyzer.
Operating Considerations
The Scope To field in the AF ANALYZER screen determines the
source of this signal. For more information see the "Scope To" field on
page 149.
The level is not affected by the front-panel VOLUME knob.
192
Main Menu
Connectors
SERIAL PORTs 9, 10, and 11
SERIAL PORTs 9, 10, and 11
SERIAL PORTs 9, 10, and 11
The serial ports are used to input and output serial data for entering
programs, printing tests results and screen images, and sending test
results to a connected controller, disk drive, or terminal.
Operating Considerations
The serial communications settings are defined on the I/O
CONFIGURE screen.
SERIAL PORT 9 must be used for serial printing.
The IBASIC controller sends and receives data to the serial ports using
address 9 for the primary port, and 10, 11 for the other ports. For
example, to enter data from the primary serial port into a program
variable named SDATA, you could use the following command:
ENTER SERIAL_9;SDATA
To send data from your program out of the primary serial port, you
could use the following command:
OUTPUT SERIAL_9;SDATA
Figure 7-2 Serial Port Pin Assignments
5
1
9
6
193
Main Menu
Connectors
TRIGGER QUALIFIER IN
VIDEO OUT
TRIGGER QUALIFIER IN
This input is active when an external trigger qualifier is selected with
the Qual Event field on the CDMA ANALYZER and CODE DOM
screens.
If the trigger is to occur on the TRIGGER QUALIFIER IN signal, select
Delay in the Trig Event field and select a delay of 0.0 µs. If the
TRIGGER QUALIFIER IN signal is a qualifier, select a trigger source
in the Trig Event field.
For more information see "Qual Event" field on page 108, and "Trig
Event" field on page 112.
VIDEO OUT
This connector provides a signal for using an external video monitor.
The signal provides a duplicate of the Test Set’s screen.
Operating Considerations
The CRT’s Video Output drives a multisync monitor at 19.2 kHz
(analog). Examples of this type of monitor include the Electrohome
ECM 1410-DMS 14-inch color monitor and the EVM 1242-P4VID
12-inch monochrome monitor.
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8
Accessories, Manuals, Support
195
Main Menu
Accessories, Manuals, Support
Modifications
Modifications
The following information can be found in the HP 8935 Assembly Level
Repair Manual:
• Hardware Upgrades/Modifications
• Firmware Upgrades
• Power Cables
196
Chapter 8
Main Menu
Accessories, Manuals, Support
Accessories
Accessories
Table 8-1 Accessories
Description
Ordering Number
None available at this time.
External Monitor
The CRT’s Video Output drives a multisync monitor at 19.2 kHz
(analog). Examples of this type of monitor include the Electrohome
ECM 1410-DMS 14-inch color monitor and the EVM 1242-P4VID
12-inch monochrome monitor.
Manuals (English and non-English)
Table 8-2 Manuals
Description
Language
Ordering
Number
HP 8935 Manuals on CD-ROM
English
E6380-90027
HP 8935 CDMA Application Guide (paper)
English
E6380-90016
HP 8935 Programmer’s Guide (paper)
English
E6380-90018
HP 8935 Reference Guide (paper)
English
E6380-90019
HP 8935 AMPS Application Guide (paper)
English
E6380-90017
HP 8935 Assembly Level Repair Manual (paper)
English
E6380-90015
No non-English manuals available at this time.
Chapter 8
197
Main Menu
Accessories, Manuals, Support
Accessories
Test Software
The Radio Test Software performs automated tests on radios used in
various radio communication systems. Each test package is contained
on an individual memory card.
Table 8-3 Software
E6385A
HP 8935 Lucent CDMA Cellular/PCS Base Station Test
Set Software
E6386A
HP 8935 Samsung CDMA Cellular/PCS Base Station Test
Set Software
E6387A
HP 8935 Nortel CDMA Cellular/PCS Base Station Test
Set Software
Options
Table 8-4 HP 8935 Options
Order
Number
1D5
Description
High Stability Reference
198
Chapter 8
Main Menu
Accessories, Manuals, Support
HP Support for Your Instrument
HP Support for Your Instrument
Getting Help
If you have problems using this Test Set, and cannot find the solution in
these documents or the Help screens, please use one of the following
contacts:
• Your local or regional sales office listed in table 8-5, "HP Sales and
Service Offices" on page 200.)
• U.S. Call Center: 800 542-4844
• Korea HP Direct: (82/2) 769-0800
• Canada HP Direct: (800) 387-3154
• European Call center: +31 20 547-9990
• Test and Measurement Organization on the web:
http://www.tmo.hp.com/
Parts and service for your Test Set can be ordered by
Chapter 8
199
Main Menu
Accessories, Manuals, Support
HP Support for Your Instrument
Customer Training
Hewlett-Packard offers customers a variety of training materials and
classes that explain the theory and applications of many HP products.
Contact your HP regional sales office to arrange training for you or your
group.
Table 8-5 HP Sales and Service Offices
United States of America
U.S. Instrument Support
Center
For Test & Measurement
Equipment Repair &
Calibration.
Englewood, Colorado 80112
United States of America
Customer Information Center
Hewlett-Packard Company
Tel: (800) 752-0900
6:00 am to 5:00 pm Pacific
Time
Parts Direct: 1-800-227-8164
Telephone: (800) 403-0801
Fax: (888) 857-8161
South Eastern Europe
Sales and Service
Hewlett-Packard Ges. m.b.h.
Liebigasse 1
P.O. Box 72
A-1222 Vienna, Austria
Telephone: 43 222 2500 0
Telex: 13 4425
United Kingdom
Sales and Service
Hewlett-Packard Ltd.
Cain Road
Amen Corner
Bracknell, Berkshire
RG12 1HN
United Kingdom
Telephone: 44 344 360000
Fax: 44 344 363344
European Multicountry
Region
Sales and Service
Hewlett-Packard S.A.
P.O. Box 95
150, Route dv
Nant_dl_AVRIL
CH-1217 Meyrin 2
Geneva, Switzerland
Telephone: (41/22) 780-8111
Fax: (41/22) 780-8542
200
Northern Europe
Sales and Service
Hewlett-Packard Nederland
B.V.
Startbaan 16
1187 XR
Amstelveen, The Netherlands
P.O. Box 667
Telephone: 31/20 5476911 X
6631
Fax: 31-20-6471825NL
Chapter 8
Main Menu
Accessories, Manuals, Support
HP Support for Your Instrument
Asia
Sales and Service
Hewlett-Packard Asia Ltd.
22-30/F Peregrine Tower
Lippo Center
89 Queensway, Central
Hong Kong
G.P.O. Box 863 Hong Kong
Japan
Sales and Service
Yokogawa-Hewlett-Packard
Ltd.
3-29-21, Takaido-Higashi
Suginami-Ku, Tokyo 168
Telephone: 81 3 3331-6111
Fax: 81 3 3331-6631
Telephone: 41-22-780-4111
Fax: 41-22-780-4770
Telephone: 852-848-7777
Fax: 852-868-4997
Australia, New Zealand
Sales and Service
Hewlett-Packard Ltd.
P.O. Box 221
31-41 Joseph Street
Blackburn, Victoria 3130
Telephone: (61/3) 895-2895
Fax: (61/3) 898-9257
International Sales Branch
Headquarters
Sales and Service
Hewlett-Packard S.A.
39 Rue Veyrot
P.O. Box 365
1217 Meyrin 1
Geneva, Switzerland
Canada
Sales and Service
Hewlett-Packard (Canada)
Ltd.
5150 Spectrum Way
Mississauga, Ontario L4W
5G1
Canada
Canada
Service Center
Hewlett-Packard Company
17500 Transcanada Highway
S. Serv Road
Kirkland, Quebec H9J 2X8
Canada
Telephone: (416) 206-3295
Telephone: (416) 206-4725
Fax: (416) 206-4739
Canada
Service Center
Hewlett-Packard Ltd.
11120 178 Street
Edmonton, Alberta T5S 1P2
Canada
Latin America
Hewlett-Packard Company
LAHQ Mexico City
Col. Lomas de Virreyes
11000 Mexico D.F.
Mexico
Telephone: (403) 486-6666
Fax: (403) 489-8764
Telephone: (52/5) 326-4000
Fax: (52/5) 202 7718
Chapter 8
201
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Accessories, Manuals, Support
HP Support for Your Instrument
202
Chapter 8
Main Menu
9
Error Messages
203
Main Menu
Error Messages
General Information About Error Messages
General Information About Error Messages
Information concerning error messages displayed by the Test Set may
be found in one of the following manuals:
• HP 8935 Programmer’s Guide
• HP 8935 Assembly Level Repair Manual
• HP Instrument BASIC User’s Handbook:
• A Beginner’s Guide to SCPI
The format of the displayed message determines which manual
contains information about the error message. There are four basic
error message formats:
• Positive numbered error messages
• IBASIC error messages
• HP-IB error messages
• Text only error messages
The following paragraphs give a brief description of each message
format and direct you to the manual to look in for information about
error messages displayed in that format.
Positive Numbered Error Messages
Positive numbered error messages are generally associated with
IBASIC. Refer to the HP Instrument BASIC User’s Handbook for
information on IBASIC error messages.
Positive numbered error messages take the form:
ERROR XX
For example:
Error 54 Duplicate file name
or
Error 80 in 632 Medium changed or not in drive
204
Chapter 9
Main Menu
Error Messages
General Information About Error Messages
Negative Numbered Error Messages
Negative numbers preceding the error messages text correspond to the
error conditions outlined in the Standard Commands for Programmable
Instruments (SCPI). For more information on SCPI, order the following
book,
A Beginner’s Guide to SCPI Addison-Wesley Publishing Company ISBN
0-201-56350-9 HP P/N 5010-7166
or contact,
Fred Bode, Executive Director SCPI Consortium
8380 Hercules Drive, Suite P3
La Mesa, CA 91942
Phone: (619) 697-8790, FAX: (619) 697-5955 CompuServe Number:
76516,254
Negative numbered error messages take the form: ERROR −XX <error
message>
For example
Error -128 Numeric data not allowed
or
Error -141 Invalid character data
IBASIC Error Messages
IBASIC Error Messages are associated with IBASIC operation. IBASIC
error messages can have both positive and negative numbers. Refer to
the HP Instrument BASIC User’s Handbook for information on positive
numbered error messages. Refer to the HP-IB Error Messages section
of the Programmer’s Guide for information on negative numbered error
messages (the error message associated with a negative number is the
same for HP-IB errors and IBASIC errors).
IBASIC error messages take the form:
IBASIC Error: -XX
For example:
IBASIC Error: -286 Program runtime error
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Main Menu
Error Messages
General Information About Error Messages
HP-IB Error Messages
HP-IB Error Messages are associated with HP-IB operation. Refer to
the Programmers Guide for information on HP-IB error messages.
HP-IB error messages take the form:
HP-IB Error: -XX
or
HP-IB Error
For example:
HP-IB Error: -410 Query INTERRUPTED.
or
HP-IB Error: Input value out of range.
Text Only Error Messages
Text only error messages are generally associated with manual
operation of the Test Set. This manual contains information on text
only error messages.
Text only error messages can also be displayed while running the Test
Set’s built-in diagnostic or calibration utility programs. Refer to the
Assembly Level Repair manual for information on text only error
messages displayed while running the Test Set’s built-in diagnostic or
calibration utility programs.
Text only error messages take the form:
This is an error message.
Input value out of range.
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Error Messages
General Information About Error Messages
The Message Display
During instrument operation, various messages may appear on the
Test Set’s display. Prompt-type messages generally appear on the first
line of the Test Set’s display. General operating and error messages
usually appear on the second line of the display. Some messages are
persistent; they remain displayed until the error condition no longer
exists, or until another persistent message with greater priority occurs.
Other messages are only displayed when the error first occurs; they are
removed when a key is pressed or the knob is turned, or when an HP-IB
command is received. Many of the messages are displayed on the
ERROR MESSAGE screen until the instrument is turned off.
Messages that are about error conditions may tell you what to do to
correct the error (turn something off, reduce a field’s value, press a
certain key, and so forth). Messages and prompts are sometimes
accompanied by a beep or warble.
NOTE
Warbles and Beeps
A warble sound indicates that an instrument-damaging
event is occurring. Beeps often occur only with the first
occurrence of the message. Prompts are generally silent.
Non-Recoverable Firmware Error
The non-recoverable firmware error is very important. It appears when
an unanticipated event occurs that the Test Set’s firmware cannot
handle. The message appears in the center of the Test Set’s display and
(except for the two lines in the second paragraph) has the form:
Non-recoverable firmware error. Please record the 2 lines of
text below and contact Hewlett-Packard through your local
service center or by calling (800) 827-3848 (USA, collect) and
asking to speak to the Service Engineer.
‘Address error exception’
at line number 0
To continue operation, turn POWER off and back on.
Follow the instructions in the message.
Unfortunately, you will not be able to recover from this condition. You
must switch the Test Set off and back on. When you rerun the test
where the Error Message occurred, it may not occur again. If it does
reappear, it would be helpful to Hewlett-Packard to record exactly what
the configuration of the instrument was when the error appeared and
contact Hewlett-Packard.
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Error Messages
General Information About Error Messages
Text Only Error Messages
Operation errors generally occur when you try to do something the Test
Set was not designed to do. Most messages tell you what to do to correct
the problem, (turn something off, reduce a field’s value, press a certain
key,…and so forth).
Some common messages are listed here:
• All self tests passed.
• The Test Set did not detect any hardware or firmware failures
during its initial self-diagnostics.
This message should always be displayed immediately after
instrument turn on.
• Input value out of range.
A number was entered that was too large or small for the selected
field, for example, trying to set AFG1 Freq to 125 kHz.
• Invalid keystroke.
You used a key that has no function relating to the selected field,
for example, pressing the On/Off key while the Filter 1 field is
selected.
• Option not installed.
You selected a function that requires optional hardware that is
not present.
• Turn off either AM or FM settings.
You tried to create simultaneous AM and FM (using any
combination of AFGen1, AFGen2, and the Mod In To field). The
Test Set does not provide simultaneous AM and FM.
• Squelch interrupt overflow. Reset using Meas Reset (press and release
the Shift key, then the Hold key).
The Test Set temporarily interrupts audio measurements when
squelch is first broken to prevent internal switching transients
from influencing measurements (except when using the SCOPE,
SPEC ANL, SERVICE screens). If squelch is repetitively broken
in a period of a few seconds, the duration of measurement
interruption becomes too great, and the Test Set stops
interrupting the signal. Following measurements may be
influenced by transient signals.
Meas Reset clears the data buffer used to generate interrupts,
resetting the normal squelch operation to eliminate transients.
This condition may occur when monitoring low-level off-the-air
signals.
208
Chapter 9
Main Menu
Error Messages
General Information About Error Messages
• Cal file checksum incorrect - initializing file.
This error usually occurs after changing the Test Set’s firmware
ROM’s. It is not a problem in that instance, but should not
re-appear during subsequent operation of the Test Set.
• One or more self tests failed. Error code: XXXX
An instrument failure was detected when the Test Set was turned
on. (For example, having a stuck front-panel key during turn on.)
The numbered error message corresponds to a binary-weighted
group of errors listed in the *TST Common Command description
in the Programmer’s Guide.
• Change Ref Level, Input Port or Attenuator (if using Hold).
The RF signal level is either too great or too small for the current
input port, attenuator setting, or both. This error often occurs
when trying to make a low-level measurement using the RF
IN/OUT port with the spectrum analyzer. Make the indicated
changes until this message is no longer displayed.
• Change RF Gen Amplitude, Output Port or Atten Hold (if on).
This message appears when the RF Generator’s Amplitude field
is set too high when using the RF IN/OUT port or when adjusting
the amplitude with the Atten Hold field set to On.
• The RF IN/OUT port has a lower maximum output level than the
DUPLEX OUT port. Use the DUPLEX OUT port, or reduce the RF
generator’s level.
If Atten Hold is On, you may be adjusting the amplitude outside
of the allowed range. Change the amplitude
• Direct latch write occurred. Cycle power when done servicing.
• The SERVICE screen was accessed and one or more internal
latch settings were changed. Turn the instrument off and back on
to reset the latches. (This condition can occur during periodic
calibration.)
Chapter 9
209
Main Menu
Error Messages
General Information About Error Messages
210
Chapter 9
Main Menu
Index
---meaning of, squelch, 153
meaning of, TX power
measurement, 36
meaning of, TX power
measurements, 120
Symbols
# of Frames
data source, 99
% delta key, 26
% key, 26
+/- key, 30
Index
Numerics
10 MHz REF OUTPUT connector,
184
16 x CHIP CLOCK connector, 184
19.6608 MHz OUT connector, 184
600 ohm impedance
at AUDIO IN, 127
211
Main Menu
Index
A
Abort Print field
Printer Configure screen, 162
abort printing, 161
ac coupling
input, 133
output, 127
AC level
peak detector, 143
AC Level field
AF Analyzer screen, 116
RF Analyzer screen, 116
ac level measurements, 37
accessories, 197
ADC FS field
CDMA Analyzer screen, 93
ADC FS measurements, 82, 83
ADCFS field
CDMA Analyzer screen, 82, 83
CDMA Generator screen, 82, 83
ADCfs field
CDMA Generator screen, 93
Code Domain Analyzer screen,
93
address
HP-IB, test set, 170
AF analyzer
input, 123
signal types analyzed, 123
AF Analyzer screen
AC Level field, 116
AF Anl In field, 123
AF Cnt Gate field, 123
AF Freq field, 117
AM Depth field, 116
Audio In Lo field, 127
DC Level field, 117
De-Emp Gain, 129
De-Emphasis field, 129
Detector field, 130
Distn field, 118
Ext Load R field, 131
Filter 1 field, 131
Filter 2 field, 132
FM Deviation field, 118, 121
Freq Error field, 119
Frequency field, 119
Gain Cntl field, 134
Input Gain field, 136
Notch Freq field, 141
Notch Gain field, 142
Pk Det To field, 143
Scope To field, 149
Settling field, 151
SINAD field, 122
SNR field, 122
Speaker ALC field, 152
Speaker Vol field, 152
TX Power field, 120
TX Pwr Zero, 157
AF Anl In field
AF Analyzer screen, 123
AF Anl Input
field, 72
AF Anl key, 25
AF Cnt Gate field
AF Analyzer screen, 123
AF Freq field
AF Analyzer screen, 117
RF Analyzer screen, 117
RF Generator screen, 117
AF frequency measurements, 38
AF generator 1
amplitude, 124
frequency, 124
output destination, AUDIO
OUT connector, 124
output destination, RF
generator AM modulator,
124
output destination, RF
generator FM modulator,
124
turning off, 124
AF generator 2
amplitude, 125
frequency, 125
output destination, AUDIO
OUT connector, 125
output destination, RF
generator AM modulator,
125
output destination, RF
generator FM modulator,
125
turning off, 125
AFGen1 Freq field
RF Generator screen, 124
AFGen1To field
RF Generator screen, 124
AFGen2 Freq field
RF Generator screen, 125
AFGen2 To field
RF Generator screen, 125
ALC
disabling, 152
internal speaker, 152
AM
input, 140
AM Demod
AF Anl In, 37
oscilloscope input, 72
AM Depth
AF Analyzer screen, 116
212
AM depth
measurements, 37
setting, 124, 125
AM Depth field
RF Analyzer screen, 116
RF Generator screen, 116
AM depth measurements, 37
AM Mod
oscilloscope input, 72
Ampl Hi
trigger qualifier, 108
Ampl Lo
trigger qualifier, 108
Ampl Mid
trigger qualifier, 108
amplifier
for distortion measurements,
142
for SINAD measurements, 142
amplitude
AF generator, 124, 125
RF generator, 126
vertical sensitivity, 158
Amplitude field
CDMA Generator screen, 93
RF Analyzer screen, 126
RF Generator screen, 126
Spectrum Analyzer screen, 126
AMPS, 175
analog meter, 39
ANALOG MODULATION IN
connector
description, 184
ANALOG MODULATION INPUT
connector
coupling, 133
for modulating RF generator,
140
analyzer
calibration, 68
frequency, markers, 133
input port, 148
Analyzer field
CDMA Analyzer screen, 94
Code Domain Analyzer screen,
94
analyzer, RF
frequency, 156
sensitivity, 150
Anl Dir field
CDMA Analyzer screen, 95
Anl Special field
CDMA Analyzer screen, 95
ANT IN connector
avoiding damage, 36, 120, 136,
148
connecting to, 24, 148
Index
Main Menu
Index
description, 185
for off-the-air measurements,
136
for RF measurements, 136
gain at, 162
input attenuation, 135
loss at, 162
sensitivity, 150
Antenna In field
Instrument Configure screen,
162
Arm Meas, 94
arrow down
key, 42
arrow up
key, 42
ASCII terminal
configuring, 180
ASSIGN, 52
Assign key, 52
assistance
call center, Europe, 199
call center, United States, 199
HP Direct, Canada, 199
HP Direct, Korea, 199
Atten Hold field
RF Generator screen, 126
attenuation
automatic control, 135
input, RF analyzer, 135
manual control, 135
attenuator hold, 126
attenuator input, 135
audio amplitude
setting, 124, 125
audio frequency counter
gate time, 123
sampling, 123
audio frequency measurements,
37
Audio In
AF Anl In, 37
oscilloscope input, 72
AUDIO IN connector
avoiding damage to, 186
description, 186
for ac level measurements, 37
AUDIO IN HI connector, 186
AUDIO IN LO connector
600 ohm impedance, 127, 186
floating , 127, 186
grounded, 127, 186
Audio In Lo field
AF Analyzer screen, 127
Audio Out
oscilloscope input, 72
AUDIO OUT connector
coupling, 127
description, 187
Audio Out field
RF Generator screen, 127
audio power measurements, 116
Auto All
Range Hold, 173
Auto Zero field
CDMA Analyzer screen, 95
RF Analyzer screen, 128
Auto/Norm field
Oscilloscope screen, 127
automatic level control, 152
autoranging
AF/RF measurements, 173
gain setting, 134
oscilloscope interference, 134,
135
spectrum analyzer interference,
134, 135
auto-tuning
AF/RF measurements, 173
average power measurements, 82
averaging
measurement results, 46
restart averaging , 46
Avg 1-100 field
Spectrum Analyzer screen, 140
Avg key, 46
Avg Pwr field
CDMA Analyzer screen, 82
CDMA Generator screen, 82
AWGN generator, 101
Index
B
bandwidth
IF filter, 135
Base Freq field
Instrument Configure screen,
163
base settings
changing , 50
default, 50
BASEBAND OUT connector, 187
basic operation, 33
battery, replacing, 53
baud rate, 180
beeper
error alert, 164
volume control, 160, 164
Beeper field
Instrument Configure screen,
160, 164
bits
serial data word, 165
Bypass
CW RF Path, 98
bypass IQ modulator, 98
213
Main Menu
Index
C
cable fault measurements, 62
calibration
channel power measurements,
96
spectrum analyzer, 68
CarFT field
Code Domain Analyzer screen,
87, 96
carrier feedthrough
measurements, 87
Carrier Feedthru field
CDMA Analyzer screen, 87
CDMA Generator screen, 87
catalog memory card, 66
CDMA Analyzer screen
ADC FS field, 82, 83, 93
Analyzer field, 94
Anl Dir field, 95
Anl Special field, 95
Auto Zero field, 95
Avg Pwr field, 82
Carrier Feedthru field, 87
Chan Pwr field, 83
Chn Pwr Cal field, 96
Even Sec In field, 100
EVM field, 88
Freq Error field, 85
Gain field, 100
Input Atten field, 102
Input Port field, 103
Magnitude Error field, 88
Meas Intvl field, 103
Phase Error field, 88
PN Offset field, 106
Pwr Gain field, 106
Pwr Intvl field, 107
Pwr Zero field, 107
Qual Event field, 108
RF Channel field, 109
Rho field, 84
Time Offset field, 85
Trig Event field, 112
CDMA Anl key, 25
CDMA Gen key, 25
CDMA Generator screen
ADC FS field, 82, 83, 93
Amplitude field, 93
Avg Pwr field, 82
Carrier Feedthru field, 87
Chan Pwr field, 83
CW RF Path field, 98
Data Rate field, 98
Data Source field, 99
EVM field, 88
Freq Error field, 85
Gen Dir field, 101
Gen Mode field, 101
Gen Special field, 102
Magnitude Error field, 88
Output Port field, 105
Phase Error field, 88
RF Channel field, 109
RF Gen Freq field, 109
Rho field, 84
Time Offset field, 85
Center Freq field
Spectrum Analyzer screen, 128
center frequency, 112, 119
for notch filter, 141
for spectrum analyzer, 128
RF signal, 156
spectrum analyzer marker, 139
Chan
RF Display mode, 109, 176
Chan Pwr field
CDMA Analyzer screen, 83
CDMA Generator screen, 83
Chan Space field
Instrument Configure screen,
164
channel numbers
for analyzer/generator
frequencies, 40
channel power measurements, 83
channel spacing, user defined,
164
channel standard
AMPS (MS, LS), 175
ETACS (MS, LS), 175
JTACS (MS, LS), 175
KOR PCS (1, 0), 175
N AMER PCS, 175
NAMPS(MSL, MSM, MSU,
LSL, LSM, LSU), 175
NTACS (MS, LS), 175
TACS (MS, LS), 175
USER-DEF, 175
channel tuning, 40, 109, 176
chassis ground, 188
CHIP CLOCK 1.288 MHz OUT
connector, 188
Chn Pwr Cal field
CDMA Analyzer screen, 96
clear
global user key assignment, 52
RAM, 76
register contents, 49, 76
clock
date/time, 165
time-of-day, 181
Code Dom key, 25
Code Domain Analyzer screen
ADCfs field, 93
214
Analyzer field, 94
CarFT, 87
CarFT field, 96
Controls field, 97
Freq Err field, 100
Input Port field, 103
Lvl field, 103
Meas Intvl field, 103
Measurement field, 104
Num Avgs field, 104
Ofs Trnsfer field, 105
Pwr Scale field, 107
Qual Event field, 108
RF Channel field, 109
RF In/Ant field, 110
Threshold field, 110
Time Offset field, 111
TmOfs field, 85, 111
Trig Event field, 112
Walsh Chan field, 113
code domain phase
measurements, 92
code domain power
measurements, 90
code domain timing
measurements, 91
Configure Instrument screen
RF Offset field, 178
Serial No. field, 180
Time field, 181
Total RAM field, 181
connectors
10 MHz REF OUTPUT, 184
16 x CHIP CLOCK, 184
19.6608 MHz OUT, 184
ANALOG MODULATION IN,
184
ANT IN, 185
AUDIO IN, 186
AUDIO OUT, 187
BASEBAND OUT, 187
CHIP CLOCK 1.2288 MHz
OUT, 188
DATA IN, 188
DUPLEX OUT, 188
EVEN SECOND SYNC IN, 189
EXT REF IN, 189
EXT SCOPE TRIG IN, 189
FRAME CLOCK OUT, 190
ground, 188
HP-IB, 190
I BASEBAND OUT, 187
PARALLEL PORT 15, 191
PARALLEL PORT 16, 191
Q BASEBAND OUT, 187
RF IN/OUT, 192
Index
Main Menu
Index
SCOPE MONITOR OUTPUT,
192
SERIAL PORT 10, 193
SERIAL PORT 11, 193
SERIAL PORT 9, 193
TRIGGER QUALIFIER IN, 194
VIDEO OUT, 194
Cont/Single field
Oscilloscope screen, 128
continuous measurements, 94
Controls field
Code Domain Analyzer screen,
97
Oscilloscope screen, 128
Spectrum Analyzer screen, 128
COPY_PL, IB_UTIL ROM
program, 74
counter
AF, 123
RF, 147
coupling
ac, 127, 133
dc, 127, 133
notch frequency, 171
cursor control knob
increment setting of, 42
CW RF Path field
CDMA Generator screen, 98
D
dashes
meaning of, squelch, 153
meaning of, TX power
measurements, 36, 120
Data Buff
data source, 99
data buffer, 101
data collection, 66
data files, replotting, 65
data files, transferring, 65
DATA IN connector, 188
Data Length field
I/O Configure screen, 165
Data Rate field
CDMA Generator screen, 98
Data Source field
CDMA Generator screen, 99
date and time, 160
Date field
Instrument Configure screen,
160, 165
dB key, 26
dBm key, 26
dBuV key, 26
dc coupling
input, 133
output, 127
DC Level field
AF Analyzer screen, 117
dc level measurements, 38, 117
DCFM, 133
decimal numbers, 30
decrement
changing setting, 42
De-emp
oscilloscope filters, 72
De-Emp Gain field
AF Analyzer screen, 129
de-emphasis
bypassing, 129
gain, 129
selecting, 129
De-Emphasis field
AF Analyzer screen, 129
default settings
base, 50
changing, 49, 50
power-on, 49
delay
trigger, 112
delete
global user key assignment, 52
RAM contents, 76
register contents, 49, 76
DEMO, 78
demodulation
Index
AM, 37, 72
FM, 37, 72
SSB, 37, 72
depth, AM, 37
detector
peak, 130, 143
rms, 130
selecting, 130
Detector field
AF Analyzer screen, 130
deviation
FM, 37, 118, 121
Disarm, 94
Distn field
AF Analyzer screen, 118
RF Analyzer screen, 118
RF Generator screen, 118
distortion, 38
measurements, 38, 118
measurements, amplifier, 142
measurements, variable notch
filter, 141
dump graphics, 161
DUPLEX OUT connector
avoiding damage, 143
description, 188
gain at, 166
loss at, 166
Duplex Out field
Instrument Configure screen,
166
215
Main Menu
Index
E
Eb/No, 101
EEX key , 30
emf voltage, 176
Error Message key, 25
error messages, 204
IBASIC echo, 170
operation, 208
error vector magnitude. See EVM
ETACS, 175
European Call Center, assistance,
199
Even Sec In field
CDMA Analyzer screen, 100
EVEN SECOND SYNC IN
connector, 189
EVM field
CDMA Analyzer screen, 88
CDMA Generator screen, 88
EVM measurements, 88
exponents
entering numbers, 30
Ext
data source, 99
Ext Load R field
AF Analyzer screen, 131
Ext Mod
AF Anl In, 37
oscilloscope input, 72
EXT REF IN connector, 189
Ext Ref In field
Instrument Configure screen,
166
EXT SCOPE TRIG IN connector,
189
external AM input, 140
external FM input, 140
external modulation input, 140
external monitor, 197
external reference, 189
external trigger qualifier, 108
F
fast power measurements, 91
FF at End field
Printer Configure screen, 167
FF at Start field
Printer Configure screen, 167
fields
changing settings, 25
types of, 25
FILE_XFER, IB_UTIL ROM
program, 74
files
securing, 75
Filter 1 field
AF Analyzer screen, 131
Filter 2 field
AF Analyzer screen, 132
Filters
oscilloscope filters, 72
filters
IF bandwidth, 135
variable notch, 141
firmware
revision number, 167
Firmware field
Instrument Configure screen,
167
floating input
at AUDIO IN LO, 127
Flow Control field
I/O Configure screen, 168
FM
deviation, 37
deviation, measurements, 118,
121
deviation, setting, 124, 125
input, 140
FM Coupling field
RF Generator screen, 133
FM Demod
AF Anl In, 37
oscilloscope input, 72
FM Deviation field
AF Analyzer screen, 118, 121
RF Analyzer screen, 118, 121
RF Generator screen, 118, 121
FM deviation measurements, 37,
38
FM Mod
AF Anl In, 37
oscilloscope input, 72
form feed, 167
forward link, 95
four dashes
meaning of, squelch, 153
meaning of, TX power
measurement, 36
216
meaning of, TX power
measurements, 120
FRAME CLOCK OUT connector,
190
Frame Clock Output field
Instrument Configure screen,
169
Freq
RF Display mode, 109, 112, 176
Freq (marker) field
Spectrum Analyzer screen, 133
Freq Err field
Code Domain Analyzer screen,
100
Freq Error field
CDMA Analyzer screen, 85
CDMA Generator screen, 85
frequency
AF generator 2, 125
AFGen1, 124
center, 118, 119
center, for notch filter, 141
center, for spectrum analyzer,
128
center, RF signal, 156
effects of RF offset, 178
measurements, 119
RF generator, reference, 163
setting, 148, 176
span, 151
spectrum analyzer, 133
frequency error
measurements, 85, 119
Frequency Error field
AF Analyzer screen, 119
RF Analyzer screen, 119
RF Generator screen, 119
Frequency field
AF Analyzer screen, 119
RF Analyzer screen, 119
RF Generator screen, 119
frequency offset, 47
receiver/transmitter, 169
RF generator/analyzer, 169
tracking generator, 142
frequency tuning, 40, 109, 176
functional test
for verifying operation, 31
Index
Main Menu
Index
G
gain
automatic control, 134
between ANT IN and
device-under-test, 162
between DUPLEX OUT and
device-under-test, 166
between RF IN/OUT and
device-under-test, 177
de-emphasis, 129
input, 136
manual control, 134
notch filter, 142
Gain Cntl field
AF Analyzer screen, 134
Gain field
CDMA Analyzer screen, 100
gain measurement, swept, 58
gate time, 123
RF counter, 147
Gen Dir field
CDMA Generator screen, 101
Gen Mode field
CDMA Generator screen, 101
Gen Special field
CDMA Generator screen, 102
(Gen)-(Anl) (user defined) field
Instrument Configure screen,
169
(Gen)-(Anl) field
Instrument Configure screen,
169
generator, AF
amplitude, 124, 125
frequency, 124, 125
output destination, AUDIO
OUT connector, 124, 125
output destination, RF
generator AM modulator,
124, 125
output destination, RF
generator FM modulator,
124, 125
turning off, 124, 125
generator, RF
amplitude, 126
frequency, 148
output port, 143, 144
reference frequency, 163
generator, tracking
frequency, 128
frequency offset, 142
output port, 144
sweep, 144
sweep frequency range, 151
GHz key, 26
grounded input
at AUDIO IN LO, 127
grounding, 188
Index
H
heading
for printout, 172
help
how to contact a human, 199
Help key, 25
hexadecimal format, 30
HI indicator, 43
Hi Limit key , 43
high limit
removing, 44
setting, 43
Hold All
Range Hold, 173
horizontal sweep
oscilloscope, 154
HP Direct assistance
Canada, 199
Korea, 199
HP-IB address
test set, 170
HP-IB Address field
Configure I/O screen, 170
HP-IB connector, 190
HP-IB operation
squelch effects, 153
Hz key, 26
217
Main Menu
Index
I
I BASEBAND OUT connector,
187
I/O Config key, 25
I/O Configure screen
Data Length field, 165
Flow Control field, 168
HP-IB Address field, 170
IBASIC Echo field, 170
Inst Echo field, 170
Mode field, 171
Parity field, 172
Save/Recall field, 179
Serial Baud field, 180
Serial In field, 180
Stop Length field, 181
IB_UTIL
COPY_PL, 74
FILE_XFER, 74
RAM_MANAGER, 76
RAM_USAGE, 74
ROM program, 74
SECURE_IT, 75
IBASIC controller
configuring, 180
IBASIC Echo field
I/O Configure screen, 170
IBASIC error messages, 170
IF filter bandwidth
selecting, 135
IF Filter field
RF Analyzer screen, 135
impedance
input, 186
Incr (divide-by)10 key, 42
Incr Set key, 42
Incr x10 key, 42
increment
changing setting, 42
Input
oscilloscope filters, 72
input
analyzer, 148
audio, 600 ohm impedance, 127
audio, floating, 127
audio, grounded, 127
coupling, 133
gain, 136
RF, 136
spectrum analyzer, 148
types of, 123
Input Atten field
CDMA Analyzer screen, 102
Instrument Configure screen,
135
RF Analyzer screen, 135
Spectrum Analyzer screen, 135
input attenuation
automatic control, 135
manual control, 135
setting, 135
input attenuator
oscilloscope, 134, 135
spectrum analyzer, 134, 135
Input Gain field
AF Analyzer screen, 136
input impedance
selecting, 186
Input Port field
CDMA Analyzer screen, 103
Code Domain Analyzer screen,
103
Instrument Configure screen,
136
RF Analyzer screen, 136
Spectrum Analyzer screen, 136
insertion loss measurements
discrete frequency , 59
swept, 59
Inst Config key, 25
Inst Echo field
I/O Configure screen, 170
Instrument Configure screen
Antenna In field, 162
Base Freq field, 163
Beeper field, 160, 164
Chan Space field, 164
Date field, 160, 165
Duplex Out field, 166
Ext Ref In field, 166
Firmware field, 167
Frame Clock Output field, 169
(Gen)-(Anl) field, 169
Input Atten field, 135
Input Port field, 136
Notch Coupl field, 171
Range Hold field, 173
Ref Select field, 174
RF Chan Std field, 175
RF Display field, 176
RF Gen Volts field, 176
RF In/Out field, 177
RF Level Offset field, 178
Time field, 160
User Def Base Freq field, 163
interactions
high-power/low-power
measurements, 157
Range Hold and other fields,
173
RF generator/analyzer, RF
offset, 178
Internal field
Oscilloscope screen, 137
218
IQ
CW RF path, 98
IQ modulator, 98
IQ RFOUT
connector, 98
Index
Main Menu
Index
K
k1 through k5 keys, 51
k1’ through k3’ keys, 51
keyboard
external, 180
keys
%, 26
% delta, 26
+/-, 30
AF Anl, 25
Assign, 52
Avg, 46
CDMA Anl, 25
CDMA Gen, 25
Code Dom, 25
dB, 26
dBm, 26
dBuV, 26
down-arrow , 42
EEX, 30
Error Message, 25
GHz, 26
Help, 25
Hi Limit, 43
Hz, 26
I/O Config, 25
Incr (divide-by)10, 42
Incr Set, 42
Incr x10, 42
Inst Config, 25
k1 through k5, 51
k1’ through k3’, 51
kHz, 26
Lo Limit, 43
Meter, 39
MHz, 26
ms, 26
mV, 26
mW, 26
On/Off, 39, 44, 45, 46, 49
ppm, 26
Printer Config , 25
Recall, 48
Ref Set, 45
Release, 52
RF Anl, 25
RF Gen, 25
s, 26
Save, 48
Scope, 25
Spec Anl, 25
up-arrow, 42
uV, 26
V, 26
W, 26
kHz key, 26
knob
J
JTACS, 175
Index
increment setting, 42
219
Main Menu
Index
L
level
ac, 37
dc, 38
oscilloscope, 138
reference for spectrum analyzer,
146
Level (div) field
Oscilloscope screen, 137
limits
indicators, 43
pass/fail, 43
removing, 44
setting, 43
Lines/Page field
Printer Configure screen, 171
LISTOPTS, 77
LO indicator, 43
Lo Limit key, 43
loss
between ANT IN and
device-under-test, 162
between DUPLEX and
device-under-test, 166
between RF IN/OUT and
device-under-test, 177
low limit
removing, 44
setting, 43
low-level RF power
measurements, 120
Lucent software, 198
Lvl (marker) field
Oscilloscope screen, 138
Spectrum Analyzer screen, 138
Lvl field
Code Domain Analyzer screen,
103
M
Magnitude Error field
CDMA Analyzer screen, 88
CDMA Generator screen, 88
magnitude error measurements,
88
manuals, 197
Marker To field
Spectrum Analyzer screen, 139
Marker To Peak- field
Oscilloscope screen, 139
Marker To Peak+ field
Oscilloscope screen, 139
markers
frequency, 133
level, 138
oscilloscope, 73, 139
oscilloscope, peak-, 139
oscilloscope, peak+, 139
spectrum analyzer, 139
spectrum analyzer, center
frequency, 139
spectrum analyzer, peak, 139
spectrum analyzer, reference
level, 139
time, 154
triggering, 154
Meas Intvl field
CDMA Analyzer screen, 103
Code Domain Analyzer screen,
103
measurement accuracy
gain control for, 134
zeroing power for, 157
measurement averaging , 46
Measurement field
Code Domain Analyzer screen,
104
measurement limits
indicators, 43
removing, 44
setting, 43
measurement reference, setting,
45
measurement settling time, 151
measurement setups
saving and recalling, 48
measurements
ac level, 37, 116
ac level, peak detector, 143
ADC FS, 82, 83
AF frequency, 38
AM depth, 37
audio frequency, 37
audio power, 116
average power, 82
cable fault, 62
220
carrier feedthrough, 87
channel power, 83
code domain phase, 92
code domain power, 90
code domain timing, 91
dc level, 38, 117
deviation, FM, 118
distortion, 38, 118
EVM, 88
fast power, code domain, 91
FM demodulation, 37, 38
FM deviation, 37, 121
frequency error, 85, 119
frequency, center, 119
insertion loss, discrete
frequency, 59
insertion loss, swept, 59
magnitude error, 88
phase error, 88
return loss, swept, 60
RF, 36
RF power, 120
rho, 84
rms potential, 116
signal/noise ratio, 38
SINAD, 38, 122
SNR, 38, 122
swept gain, 58
time offset, 85
transmitter power, 36, 120
transmitter power, peak, 156
transmitter power, sample, 156
voltage, 116
memory
considerations, 50
total RAM, 181
memory card catalog, 66
memory overflow error, 50
message
beeper alert, 164
displaying, 160
error, 204
IBASIC error, 170
operation, 208
turn off, 160
types of, 204
meter
end points, 39
on/off, 39
scale interval, 39
Meter key, 39
MHz key, 26
uV (microvolts) key, 26
Mod In To field
RF Generator screen, 140
Mode field
I/O Configure screen, 171
Index
Main Menu
Index
Model field
Printer Configure screen, 171
modulation
external AM, 140
external, FM , 140
external, input, 140
input, 140
input, coupling, 133
OQPSK, 101
QPSK, 101
sensitivity, input, 140
monitor, external, 197
ms key, 26
mV key, 26
mW key, 26
N
names
printout, 172
registers, 49
NAMPS, 175
negative edge
triggering, 137
No Pk/Avg field
Spectrum Analyzer screen, 140
Normalize field
Spectrum Analyzer screen, 141
Nortel software, 198
Notch
oscilloscope filters, 72
Notch Coupl field
Instrument Configure screen,
171
used with variable notch, 141
notch filter
gain, 142
variable, 141
Notch Freq field
AF Analyzer screen, 141
Notch Gain field
AF Analyzer screen, 142
NTACS, 175
Num Avgs field
Code Domain Analyzer screen,
104
number of frames
data source, 99
numbers
decimal format, 30
hexadecimal format, 30
negative, 30
scientific notation, 30
Index
O
offset
frequency,
receiver/transmitter, 169
frequency, RF
generator/analyzer, 169
frequency, tracking generator,
142
RF generator/analyzer, 178
RF level, 178
setting, frequency, 47
vertical, oscilloscope, 138, 158
Offset Freq (Tracking Gen) field
Spectrum Analyzer screen, 142
off-the-air measurements, 136,
185
Ofs Trnsfer field
Code Domain Analyzer screen,
105
On/Off key, 39, 44, 45, 46, 49
operating basics, 33
operation messages, 208
options, for Test Set, 198
options, Test Set, 77
OQPSK modulation, 101
oscilloscope
description of, 71
features, 71
filters, block diagram of, 71
filters, selection of, 72
input attenuator, 134, 135
inputs, block diagram of, 71
inputs, selection of, 72
level, markers, 138
marker types, 139
markers, 73
markers, level, 138
resolution, 149
scale, 145
signal source, 149
squelch effects, 153
triggering, 73
oscilloscope interference
autoranging, 134, 135
Oscilloscope screen
Auto/Norm field, 127
Cont/Single field, 128
Controls field, 128
Internal field, 137
Level (div) field, 137
Lvl (marker) field, 138
Marker To Peak- field, 139
Marker To Peak+ field, 139
Output Port field, 143
Position field, 145
Reset field, 146
Time (marker) field, 154
221
Main Menu
Index
Time/div field, 154
Trig-Delay field, 155
Vert Offset field, 158
Vert/div field, 158
output
coupling, 127
RF, 143, 144
tracking generator, 144
Output Port field
CDMA Generator screen, 105
Oscilloscope screen, 143
RF Generator screen, 143
Spectrum Analyzer screen, 143
overpower
at RF IN/OUT connector, 136
damage, at ANT IN, 36
damage, at ANT IN connector,
120, 148
damage, at DUPLEX, 143
warning, 136
overpower damage, 24
overview of operation, 33
P
PARALLEL PORT 15 connector,
191
PARALLEL PORT 16 connector,
191
parallel port pin assignments, 191
Parity field
I/O Configure screen, 172
pass/fail limits, 43
password, 75
PC card catalog, 66
PCS
Korean channel standard, 175
North American channel
standard, 175
Peak
TX Pwr Meas field, 156
peak
hold, spectrum analyzer, 140
spectrum analyzer marker, 139
peakoscilloscope marker, 139
peak detector, 130, 143
signal source, 143
peak+
oscilloscope marker, 139
% delta key, 26
% key, 26
Phase Error field
CDMA Analyzer screen, 88
CDMA Generator screen, 88
phase error measurements, 88
Pk Det To field
AF Analyzer screen, 143
Pk Hold field
Spectrum Analyzer screen, 140
PN Offset field
CDMA Analyzer screen, 106
Port/Sweep (Tracking Gen)
Spectrum Analyzer screen, 144
Position field
Oscilloscope screen, 145
positive edge
triggering, 137
power
average, 82
channel, 83
code domain, 90
code domain, fast, 91
transmitter, 36
zero reference, 157
power meter
zeroing, 157
power-on settings
changing , 49
ppm key, 26
preset state
222
changing, 50
default, 50
print
screens, 161
Print Title field
Printer Configure screen, 172
printer
connecting, 172
model, 171
setup utility, 66
Printer Config key, 25
Printer Configure screen
Abort Print field, 162
FF at End field, 167
FF at Start field, 167
Lines/Page field, 171
Model field, 171
Print Title field, 172
Printer Port field, 172
Printer Port field
Printer Configure screen, 172
printing
aborting, 162
form feed, 167
lines per page, 171
printer model, 171
selecting printer port, 172
title, 172
Pwr Gain field
CDMA Analyzer screen, 106
Pwr Intvl field
CDMA Analyzer screen, 107
Pwr Scale field
Code Domain Analyzer screen,
107
Pwr Zero field
CDMA Analyzer screen, 107
Index
Main Menu
Index
Q
Q BASEBAND OUT connector,
187
QPSK modulation, 101
Qual Event field
CDMA Analyzer screen, 108
Code Domain Analyzer screen,
108
R
radio test software, 198
RAM
back-up batteries, 53
clearing, 76
disk allocations, 74
loss of data, 53
total available, 181
total installed, 74
RAM_MANAGER, IB_UTIL ROM
program, 76
RAM_USAGE, IB_UTIL ROM
program, 74
random
data source, 99
Range Hold field
Instrument Configure screen,
173
recall
instrument setups, 48
saved register with hardware
change, 50
settings, 48
Recall key, 48
Ref Level field
Spectrum Analyzer screen, 146
Ref Select field
Instrument Configure screen,
174
Ref Set key, 45
reference
external input, 189
external output, 184
level, spectrum analyzer, 146
setting, 45, 138
transmitter power, zero, 157
Reference indicators, 45
registers
clearing, 49
naming, 49
release
global user key assignment, 52
Release key, 52
remote operation
mode, 171
squelch effects, 153
remove high/low limits, 44
remove pass/fail limits, 44
remove register contents, 49
replot data files, 65
Reset field
Oscilloscope screen, 146
resolution
bandwidth, spectrum analyzer,
68
oscilloscope, 149
Index
return loss measurements, swept,
60
reverse link, 95
reverse RF power, 143
revision number
firmware, 167
RF Analyzer screen
AC Level field, 116
AF Freq field, 117
AM Depth field, 116
Amplitude field, 126
Auto Zero field, 128
Distn field, 118
FM Deviation field, 118, 121
Frequency Error field, 119
Frequency field, 119
IF Filter field, 135
Input Atten field, 135
Input Port field, 136
RF Channel field, 147
RF Cnt Gate field, 147
Sensitivity field, 150
SINAD field, 122
SNR field, 122
Squelch field, 153
Tune Freq field, 156
TX Power field, 120
TX Pwr Meas field, 156
TX Pwr Zero field, 157
RF Anl key, 25
RF Chan Std field
Instrument Configure screen,
175
RF Channel field
CDMA Analyzer screen, 109
CDMA Generator screen, 109
Code Domain Analyzer screen,
109
RF Analyzer screen, 147
RF Cnt Gate field
RF Analyzer screen, 147
RF counter
sampling, 147
RF Display field
Instrument Configure screen,
176
RF Gen Freq field
CDMA Generator screen, 109
RF Generator screen, 148
Spectrum Analyzer screen, 148
RF Gen key, 25
RF Gen Volts field
Instrument Configure screen,
176
RF generator
amplitude, 126
frequency, 148
223
Main Menu
Index
output, 144
output port, 143
RF Generator screen
AF Freq field, 117
AFGen1 Freq field, 124
AFGen1 To field, 124
AFGen2 Freq field, 125
AFGEN2 To field, 125
AM Depth field, 116
Amplitude field, 126
Atten Hold field, 126
Audio Out field, 127
Distn field, 118
FM Coupling field, 133
FM Deviation field, 118, 121
Frequency Error field, 119
Frequency field, 119
Mod In To field, 140
Output Port field, 143
RF Gen Freq field, 148
SINAD field, 122
SNR field, 122
RF In/Ant field
Code Domain Analyzer screen,
110
Spectrum Analyzer screen, 148
RF IN/OUT connector
connecting to, 24
description, 192
for measuring high-power
devices, 144
for measuring transmitter
power, 136
for RF measurements, 136
for testing transceivers, 143
gain at, 177
input attenuation, 135
loss at, 177
power measured at, 120
RF In/Out field
Instrument Configure screen,
177
RF input, 103, 110
selecting port, 136
RF Level Offset field
Instrument Configure screen,
178
RF measurements, 36
RF offset
setting, 47
RF Offset field
Configure Instrument screen,
178
RF output
selecting port, 143, 144
RF power
exceeding limits, 136
measurements, 120
zero reference, 157
RFTOOLS
cable fault measurements, 62
catalog memory card, 66
discrete frequency insertion loss
measurements, 59
replot data files, 65
SA Self Calibration ON/OFF, 65
Set Up Printer/Data Collection,
66
swept gain measurements, 58
swept insertion loss
measurements, 59
swept return loss
measurements, 60
transfer stored data, 65
Rho field
CDMA Analyzer screen, 84
CDMA Generator screen, 84
rho measurements, 84
rms detector, 130
rms potential
measurements, 116
ROM program
SERVICE4. See the HP 8935
Assembly Level Repair
Manual.
ROM programs
COPY_PL, 74
DEMO, 78
FILE_XFER, 74
IB_UTIL, 74
LISTOPTS, 77
RAM_MANAGER, 76
RAM_USAGE, 74
RFTOOLS, 56
SECURE_IT, 75
ST_PLT, 79
224
S
s key , 26
Sample
TX Pwr Meas field, 156
sampling
AF counter, 123
RF counter, 147
Samsung software, 198
save
instrument setups, 48
settings, 48
Save key, 48
save register memory allocations,
74
Save/Recall field
I/O Configure screen, 179
saving instrument setups, 48
saving settings, 48
scale
for oscilloscope, 145
scientific notation
entering numbers, 30
scope
horizontal sweep, 154
level, markers, 138
markers, 138
vertical offset, 158
Scope key, 25
SCOPE MONITOR OUTPUT
connector, 192
Scope To field
AF Analyzer screen, 149
scope. See oscilloscope.
screen dump, 161
screens
printing, 161
SECURE_IT, IB_UTIL ROM
program, 75
securing files, 75
sensitivity
adverse effects on
measurements, 150
ANT IN, 150
modulation input, 140
Sensitivity field
RF Analyzer screen, 150
Spectrum Analyzer screen, 150
Serial Baud field
I/O Configure screen, 180
serial data word
bits, 165
Serial In field
I/O Configure screen, 180
Serial No. field
Configure Instrument screen,
180
SERIAL PORT 10 connector, 193
Index
Main Menu
Index
SERIAL PORT 11 connector, 193
SERIAL PORT 9 connector, 193
serial port pin assignments, 193
SERVICE4. See the HP 8935
Assembly Level Repair
Manual.
settings
base, 50
beeper volume, 160
changing, field, 25
date, 160
default, 49, 50
power-on, 49
recalling , 48
saving, 48
time, 160
Settling field
AF Analyzer screen, 151
settling time
AF measurements, 151
setups
recalling , 48
saving, 48
signal to noise ratio, 37
signal/noise ratio
measurements, 38
simultaneous AM and FM (not
allowed), 124, 125
SINAD
measurements, 122
measurements, amplifier, 142
measurements, variable notch
filter, 141
SINAD field
AF Analyzer screen, 122
RF Analyzer screen, 122
RF Generator screen, 122
SINAD measurements, 38
Single, 94
SNR
measurements, 38, 122
SNR field
AF Analyzer screen, 122
RF Analyzer screen, 122
RF Generator screen, 122
SNR measurements, 38
software
automated testing, 198
Lucent, 198
Nortel, 198
Samsung, 198
source
oscilloscope, 149
peak detector, 143
span
effect on AF analyzer, 151
spectrum analyzer, 68
Span field
Spectrum Analyzer screen, 151
speaker
ALC, 152
disabling, 152
volume control, 152
Speaker ALC
AF Analyzer screen, 152
Speaker Vol field
AF Analyzer screen, 152
Spec Anl key, 25
spectrum analyzer
calibration, 68
calibration, self, 65
frequency, markers, 133
input attenuator, 134, 135
input port, 148
interference when autoranging,
134, 135
markers, 139
markers, frequency, 133
measuring low-level RF power,
120
resolution bandwidth, 68
span, 68
squelch effects, 153
sweep rate, 68
traces, 141
use of, 120
Spectrum Analyzer screen
Amplitude field, 126
Avg 1-100 field, 140
Center Freq field, 128
Controls field, 128
Freq (marker) field, 133
Input Atten field, 135
Input Port field, 136
Lvl (marker) field, 138
Marker To field, 139
No Pk/Avg field, 140
Normalize field, 141
Offset Freq (Tracking Gen) field,
142
Output Port field, 143
Pk Hold field, 140
Port/Sweep (Tracking Gen), 144
Ref Level field, 146
RF Gen Freq field, 148
RF In/Ant field, 148
Sensitivity field, 150
Span field, 151
Track/Fixed field, 154
squelch
effects on HP-IB operation, 153
effects on remote operation, 153
effects on spectrum analyzer,
153
Index
fixed level, 153
manual control, 153
off, 153
using attenuator hold, 126
Squelch field
RF Analyzer screen, 153
SSB Demod
AF Anl In, 37
oscilloscope input, 72
ST_PLT, 79
Start Frame
data source, 99
stop bit, 181
Stop Length field
I/O Configure screen, 181
support, 199
sweep
frequency range, tracking
generator, 151
oscilloscope, 154
rate, spectrum analyzer, 68
time per division, 154
tracking generator, 144
swept gain measurements, 58
swept return loss measurements,
60
225
Main Menu
Index
T
TACS, 175
talk & listen, 171
Threshold field
Code Domain Analyzer screen,
110
time
markers, 154
Time (marker) field
Oscilloscope screen, 154
time and date, 160
Time field
Configure Instrument screen,
181
Instrument Configure screen,
160
Time Offset field
CDMA Analyzer screen, 85
CDMA Generator screen, 85
Code Domain Analyzer screen,
111
time offset measurements, 85
Time/div field
Oscilloscope screen, 154
timebase
external output, 184
title
for printout, 172
TmOfs field
Code Domain Analyzer screen,
85, 111
Total RAM field
Configure Instrument screen,
181
trace
comparison, spectrum analyzer,
141
spectrum analyzer, 141
Track/Fixed field
Spectrum Analyzer screen, 154
tracking generator
enabling, 154
frequency, 128
frequency offset, 142
output, 144
output port, 144
sweep, 144
training, 200
transmitter power, 36
measurements, 120
Peak, 156
Sample, 156
zero reference, 157
Trig Event field
CDMA Analyzer screen, 112
Code Domain Analyzer screen,
112
Trig-Delay field
Oscilloscope screen, 155
TRIGGER QUALIFIER IN
connector, 194
TRIGGER/QUALIFIER IN
connector, 108
triggering
automatic, 127
continuous, 128
external, oscilloscope, 137
external, oscilloscope connector,
189
internal, 137
internal, oscilloscope, 137
level, 127
negative edge, 137
oscilloscope, 73
positive edge, 137
signal, 127
source, oscilloscope, 137
time, 154
Tune Freq, 112
Tune Freq field
RF Analyzer screen, 156
tuning
channel versus frequency, 40
channel, automatic, 176
turning off squelch, 153
TX Power field
AF Analyzer screen, 120
RF Analyzer screen, 120
TX Pwr Meas field
RF Analyzer screen, 156
TX Pwr Zero
AF Analyzer screen, 157
TX Pwr Zero field
RF Analyzer screen, 157
226
U
U.S. Call Center, assistance, 199
User Def Base Freq field
Configure Instrument screen,
163
user keys
assigning global, 52
assigning, local, 52
clearing, global assignment, 52
deleting, global assignment, 52
explanation, 51
global, assignment, 52
global, defined, 51
local, defined, 51
preassigned, 51
releasing, global assignment, 52
releasing, local assignment, 52
setting, global, 52
utilities
catalog memory card, 66
data collection, 66
data collection, transferring
data, 65
printer setup, 66
replot data files, 65
spectrum analyzer self
calibration, 65
uV key, 26
Index
Main Menu
Index
V
V key, 26
variable frequency notch filter,
141
version number
firmware, 167
Vert Offset field
Oscilloscope screen, 158
Vert/div field
Oscilloscope screen, 158
vertical offset
oscilloscope, 138, 158
vertical sensitivity
oscilloscope, 158
video averaging
spectrum analyzer, 140
VIDEO OUT connector, 194
voltage
measurements, 116
RF, across 50 ohm load, 176
RF, emf (open circuit), 176
volume
beeper, 160, 164
internal speaker, 152
W
W key, 26
Walsh Chan field
Code Domain Analyzer screen,
113
web site
Hewlett-Packard Test and
Measurement
Organization, 199
www.tmo.hp.com, 199
Index
X
Xon/Xoff, 168
227
Main Menu
Index
Z
zero reference
transmitter power, 157
Zeroes
data source, 99
zeroing
power meter, 157
228
Index
Main Menu
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