HP | Cell Phone Accessories 8935 | User's Manual | HP Cell Phone Accessories 8935 User's Manual

HP 8935 CDMA Cellular/PCS Base Station
Test Set
AMPS Base Station Tests
Application Guide
Firmware Version: A.01.00 and above
HP Part Number: E6380-90017
Revision A
Printed in U.S.A
November 1997
© Copyright Hewlett-Packard Company 1997
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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 the U.S. Government pursuant to
the Copyright License under the clause at DFARS 52.227-7013 (APR
1998).
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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 January 1991.
Schalldruckpegel Lp < 70 dB(A).
Am Arbeitsplatz
Normaler Betrieb.
Nach ISO 7779:1988/EN 27779:1991 (Typprüfung).
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Safety
GENERAL
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 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.
Safety Considerations for this Instrument
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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.
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.
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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.
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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.
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.
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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.
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ASSISTANCE
Maintenance Agreements
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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Regional Sales Offices
IMPORTANT
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
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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
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Contents
Table of Contents
In This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1. Getting Started with AMPS Test
About the Test Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What’s Included with this Test Set . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual and Automatic Operation Modes . . . . . . . . . . . . . . . . . . . . . .
IBASIC programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximizing the Accuracy of Your Measurements . . . . . . . . . . . . . . . .
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TX Power Temperature Compensation . . . . . . . . . . . . . . . . . . . . . . .
Display an FM Carrier Signal (Loopback Test) . . . . . . . . . . . . . . . . . .
Connections for FM Carrier Loopback Test . . . . . . . . . . . . . . . . . . .
Get Started with the Test Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing the Test Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Generate an FM Carrier Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analyzing an FM Carrier Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What to Do Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.
Testing AMPS Base Stations
AMPS Tests You Can Perform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What You Need to Know to Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Test Set to Your Base Station. . . . . . . . . . . . . . . . . . .
Compensating for Signal Losses and Gains in the Test Setup . . . . . .
Transmitter Frequency Error/Offset and Power Test . . . . . . . . . . . . .
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Begin Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter SAT Frequency and Deviation. . . . . . . . . . . . . . . . . . . . .
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter Data Deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter Maximum Voice Deviation. . . . . . . . . . . . . . . . . . . . . . . .
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver Sensitivity (SINAD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver Squelch Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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3. Utility Procedures
Beeper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Beeper Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
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Contents
Measuring Insertion Losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Memory Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Memory Cards and Intialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Selecting the Oscilloscope’s Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Selecting the Oscilloscope’s Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Triggering the Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Using the Marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Online Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Help Screen Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Ports: HP-IB, Serial and Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
HP-IB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Parallel Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Configuring the Test Set for Printing . . . . . . . . . . . . . . . . . . . . . . . . 61
Printing a Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Measuring Swept Return Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Tracking Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Using the Tracking Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
User Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Displaying the Pre-assigned Local User Keys . . . . . . . . . . . . . . . . . 66
Assigning a Local User Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Assigning a Global User Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
To Release a User Key Assignment. . . . . . . . . . . . . . . . . . . . . . . . . . 67
Using Channel Numbers to Set Analyzer and Generator Frequencies68
RF Chan and Tune Freq Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Measuring AC Level and DC Level . . . . . . . . . . . . . . . . . . . . . . . . . . 70
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In This Manual
What is Discussed This Manual
This manual explains how to use the HP 8935 to manually test an
AMPS base station.
What is Not Discussed in this Manual
• General operation of the Test Set.
Changing display screens and their associated controls is discussed
in the Reference Guide (HP part number E6380-90019).
• Detailed operation of the Test Set’s spectrum analyzer and
oscilloscope.
Although there are basic explanations in this manual, more detail is
provided in the Reference Guide concerning the various control
menus and fields available.
• How to control your base station, switch system, or any other
software or hardware associated with your cell site equipment.
Each manufacturer and cellular service provider has their own cell
site control and base station configuration procedures that go beyond
the scope of this documentation.
• How to perform IBASIC programming operations, such as writing,
editing, copying, or cataloguing programs.
Programming the Test Set is explained in the Programming Manual
(HP part number E6380-90018), and the IBASIC language is
explained in the HP Instrument BASIC User’s Handbook (HP part
number E2083-90005).
Conventions Used in This Manual
The following conventions are used throughout this manual to help
clarify instructions and reduce unnecessary text:
Test Set refers to the HP 8935.
Test Set keys are indicated like this: Preset
Test Set screen information, such as a measurement result or an error
message, is shown like this: TX Power 7.21 W
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In This Manual
This document presents a step-by-step approach to AMPS base station
testing using the Test Set, including what you need to know before you
can start testing.
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 1
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.
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1
Getting Started with AMPS Test
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Chapter 1
Getting Started with AMPS
Test
This chapter introduces you to the HP 8935 CDMA Cellular/PCS Base
Station Test Set and its AMPS functions. For information on other
functions in the Test Set, see “Which Document is Required?” on page
18. To proceed immediately to the test procedures, see “AMPS Tests
You Can Perform” on page 30.
Getting Started with AMPS Test
About the Test Set
About the Test Set
Product Description
This Test Set helps you install, commission, and maintain AMPS base
stations. It also allows you to test CDMA base stations. (This guide
discusses AMPS testing. For more information about CDMA testing,
refer to the CDMA Base Station Tests Applications Guide.)
The Test Set contains an RF signal generator, RF analyzer, AF
analyzer, and AF generator to test AMPS base stations. The following
tools are also included:
Code Domain Analyzer
CDMA Analyzer
CDMA Generator
Spectrum Analyzer
Power Meter
Oscilloscope
AC/DC Voltmeter
IBASIC controller
Batteries
There are two methods the Test Set uses to back up its RAM. One is a
set of two AA batteries mounted inside 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.
Failure to take prompt action may result in loss of RAM data including
IBASIC programs and SAVE/RECALL states stored in the RAM.
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. Do not use rechargeable batteries.
5. Replace the rear panel.
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Chapter 1
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Getting Started with AMPS Test
About the Test Set
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 (see "Regional Sales and Service
Offices" on page 12)
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/
Chapter 1
Getting Started with AMPS
Test
Chapter 1
19
Main Menu
Getting Started with AMPS Test
About the Test Set
What’s Included with this Test Set
The equipment commonly shipped with the base Test Set is listed
below. Options that you order with your Test Set may change this list.
Test Set
Documentation:
• CDMA Applications Guide
• CD-ROM with the above listed manual, AMPS Base Station Tests
Applications Guide, Assembly Level Repair Manual,
Programmer’s Guide, and HP 8935 Reference Guide in Adobe™
Acrobat Reader format (.pdf).
Power cord
Cover for the front panel of the Test Set
20
Chapter 1
Main Menu
Getting Started with AMPS Test
Manual and Automatic Operation Modes
Manual and Automatic Operation Modes
You can operate the Test Set in either of two modes: manual or
automatic. Controlling the Test Set with the keypad is manual
operation. Controlling the Test Set with a program is automatic
Operation.
Use manual mode when you want to control the Test Set with the front
panel. Manual operation is described in this document.
Use automatic mode when you want to control the Test Set with its
internal IBASIC controller. To use the Test Set in automatic mode, you
must load an IBASIC program into the Test Set’s memory.
IBASIC programs
Many of HP’s software packages are manufacturer-specific packages.
Manufacturer-specific software packages provide automated testing of
the manufacturer’s base station to greatly reduce test times and
provide test setup repeatability. Once configured, the software typically
controls both the base station and the Test Set and prompts the user to
make the required connections during testing. Test results can be
printed and/or saved to a file for later use. Contact your local HP Sales
Office to find out which software packages are currently available.
Chapter 1
21
Main Menu
Chapter 1
Getting Started with AMPS
Test
You can obtain an IBASIC program in two ways: either write it
yourself, or purchase a software package from Hewlett-Packard. To
write programs yourself, refer to the Programmer’s Guide, included
with the Test Set’s documentation.
Getting Started with AMPS Test
Maximizing the Accuracy of Your Measurements
Maximizing the Accuracy of Your Measurements
This Test Set is designed to make highly accurate measurements.
However, to ensure that you have the most accurate measurements
available, you can perform the following tasks:
Calibration
You should calibrate the Test Set whenever you change or add an
internal assembly. You may want to calibrate when you upgrade
firmware. See the Assembly Level Repair Manual for calibration
procedures.
TX Power Temperature Compensation
The Test Set is internally compensated. However, power measurement
calibration can be optimized for temperature changes using the
TX Pwr Zero field on the RF ANALYZER screen. The new calibration
factors are stored in RAM until the next time the routine is used.
To have the Test Set zero the TX Power measurement automatically
when needed, set the Auto Zero field on the RF ANALYZER screen to
Auto. During operation, the Test Set will temporarily halt the TX
Power measurement as it is calibrated. This can happen during a
measurement. If interrupting the measurement is a problem for your
test setup, set the Auto Zero field to Manual, and select
TX Pwr Zero whenever you want to manually calibrate the
measurement.
22
Chapter 1
Main Menu
Getting Started with AMPS Test
Display an FM Carrier Signal (Loopback Test)
Display an FM Carrier Signal (Loopback Test)
Since an AMPS base station is basically a continuous wave (CW) FM
signal, this section will guide you through the process of generating and
displaying an FM signal at a cellular band frequency. It is intended to
make you feel more comfortable with using the Test Set. If you are
ready to begin testing, proceed to Chapter 2.
NOTE
In the following operating example, you enter a common frequency for
the RF generator and RF analyzer to create and view the Test Set’s own
signal. However, typical AMPS base station testing uses channel
assignments with different transmit and receive frequencies. This is
explained further in "Using Channel Numbers to Set Analyzer and
Generator Frequencies" on page 68.
Connections for FM Carrier Loopback Test
Figure 1-1
Chapter 1
Getting Started with AMPS
Test
Connect the Test Set in the following manner.
FM Carrier Loopback Test Connections
AUDIO OUT
BASEBAND OUT
AUDIO IN
PARALLEL PORT
PARALLEL PORT
HI
LO
I
Q
SERIA PORT
SERIA PORT
IN
SERIA PORT
MODULATION
AUDIO
INPUT
MONITOR
OUTPUT
ANT IN
EXT SCOPE
TRIG IN
DUPLEX
VIDEO
OUT
16X
CHIP CLOCK CHIP CLOCK
1.2288
19.6608
MHz OUT
MHz OUT
FRAME
CLOCK
SYNC IN
EVEN
SECOND
TRIG/QUAL
IN
10 MHz
REF OUT
REF IN
RF IN/OUT
RF IN/OUT
DUPLEX OUT
Chapter 1
23
Main Menu
Getting Started with AMPS Test
Display an FM Carrier Signal (Loopback Test)
Get Started with the Test Set
Here are some guides for selecting screens and fields:
Use the knob to move the cursor around the screen. Reverse video boxes
indicate fields that can be selected.
To select a field on the screen, push the knob, or press the Enter key.
Use the RF Gen, RF Anl, and Spec Anl keys to access the RF GENERATOR,
RF ANALYZER, and SPEC ANL screens.
Selecting the titlebar at the top of the screen displays a list of screens
that can be immediately accessed when selected.
Preparing the Test Set
1. Plug in the Test Set.
2. Turn on the Test Set (or press Preset if it is already on). The CDMA
ANALYZER screen will be displayed.
3. Press the Inst Config key.
4. Select RF Display, and set the field to Freq.
5. Verify your connections. See “Connections for FM Carrier Loopback
Test” on page 23.
Generate an FM Carrier Signal
Refer to Figure 1-2.
1. Press CDMA Gen to go to the CDMA GENERATOR screen.
2. Select CW RF Path and set it to Bypass. This shuts off the IQ
modulation normally used for CDMA testing.
3. Press the RF Gen key to go to the RF GENERATOR screen.
4. Select RF Gen Freq and use the keypad to set the frequency to
850.000 MHz.
5. Select Amplitude and set the amplitude to 0 dBm.
6. Select Output Port and verify that the port is set to Dupl.
7. Turn on FM modulation by positioning the cursor in the lower half of
the AFGen1 To field and pressing the On/Off key.
The default FM deviation is 2.9 kHz. The default FM rate is
1.0 kHz.
24
Chapter 1
Main Menu
Getting Started with AMPS Test
Display an FM Carrier Signal (Loopback Test)
AF generators 1 and 2 are automatically turned off anytime you access
any of the CDMA screens (CDMA GENERATOR, CDMA ANALYZER,
CODE DOM). This prevents accidental addition of AM or FM when
generating a CDMA signal. If you accidentally access any of the CDMA
screens when testing an AMPS base station, any AM or FM you
specified on the RF GENERATOR screen will be turned off while on
that CDMA screen. Previously set AM and/or FM are automatically
turned back on when returning to the RF GENERATOR screen.
NOTE
Figure 1-2
Setting Up the RF Generator
Enter 0 dBm
Turn on FM
850.000000
0.0
Chapter 1
Getting Started with AMPS
Test
Enter 850 MHz
2.9
kHz
Select DUPLEX
Chapter 1
25
Main Menu
Getting Started with AMPS Test
Display an FM Carrier Signal (Loopback Test)
Analyzing an FM Carrier Signal
1. Press the RF Anl key to go to the RF ANALYZER screen.
2. Select Tune Freq and use the keypad to set the frequency to
850.000 MHz. Notice that the Frequency Error, TX Power, FM
Deviation, and AF Frequency for the signal are automatically
displayed.
Figure 1-3
Default Digital Measurements for the FM Carrier
3. Press the Spec Anl key to go to the SPECTRUM ANALYZER screen.
4. The signal is displayed.
5. Select Span and set it to 30.000 kHz to get a good view of the
modulated signal. See Figure 1-4.
Figure 1-4
FM Carrier Signal
26
Chapter 1
Main Menu
Getting Started with AMPS Test
Display an FM Carrier Signal (Loopback Test)
What to Do Next
Congratulations! You are now ready to begin testing your AMPS Base
Station. Proceed to Chapter 2, “Testing AMPS Base Stations,” on page
29.
Chapter 1
Getting Started with AMPS
Test
Chapter 1
27
Main Menu
Getting Started with AMPS Test
Display an FM Carrier Signal (Loopback Test)
28
Chapter 1
Main Menu
2
Testing AMPS Base Stations
Advanced Mobile Phone System (AMPS) base stations for cellular telephone
systems are basically continuous wave (CW) FM voice transceivers with some
control and data signals for system operation. This chapter explains how to use
the Test Set to manually test the RF and AF performance of the transmitter
and receiver portions of the base station.
Chapter 2
Testing AMPS Base Stations
29
Main Menu
Testing AMPS Base Stations
AMPS Tests You Can Perform
AMPS Tests You Can Perform
The following tests are explained in this manual:
CAUTION
•
"Transmitter Frequency Error/Offset and Power Test" on page 34.
•
"Transmitter SAT Frequency and Deviation" on page 36.
•
"Transmitter Data Deviation" on page 38.
•
"Transmitter Maximum Voice Deviation" on page 40.
•
"Receiver Sensitivity (SINAD)" on page 42.
•
"Receiver Squelch Threshold" on page 45.
Transmitter power (TX Power) can only be measured through the Test
Set’s RF IN/OUT port. Verify that the signal connected to this port does
not exceed the limits printed by the port.
If you hear a loud “warbling” sound from the Test Set, turn off your
transmitter immediately! This is the over-power alarm, warning that
instrument damage may occur. Caution: Turning the Test Set off at this
point does not protect the internal circuitry. Also, removing the cable
from the RF IN/OUT port without turning the transmitter off may
damage your transmitter or power amplifier (due to an impedance
mismatch).
The ANT IN port is only used for analyzing very low level signals
(≤60 mW). Never attempt to measure a transmitter’s power directly
using the ANT IN port, as instrument damage may occur.
The DUPLEX OUT port is only used to provide RF signals to the base
station’s receive port(s). It must not be connected to the base stations
transmit port or damage may occur to the Test Set.
30
Chapter 2
Main Menu
Testing AMPS Base Stations
What You Need to Know to Begin
What You Need to Know to Begin
You need to know how to control the base station and the basic
operation of the Test Set before you can test your base station.
Test Set operation includes how to change control settings, how to
navigate between control screens, and how to change the units used for
any measurement or setting. Test Set operation and feature
descriptions are included in the Reference Guide.
Base station operation includes turning the transmitter on and off,
turning the SAT tone and data signals on and off, and knowing where
to connect test cables from the Test Set to your base station.
You also need to properly configure the Test Set for your test situation.
The following sections describe operations needed to simplify Test Set
operation and minimize measurement errors.
•
Entering the known losses and/or gains in your test setup is
explained in "Compensating for Signal Losses and Gains in the Test
Setup" on page 33.
• Measuring the signal loss through cables and other devices is
explained in "Measuring Insertion Losses" on page 51.
• Choosing to enter your base station’s transmit and receive
frequencies by channel number or by discrete frequencies is
explained in "Using Channel Numbers to Set Analyzer and
Generator Frequencies" on page 68.
Chapter 2
Testing AMPS Base Stations
Chapter 2
31
Main Menu
Testing AMPS Base Stations
Connecting the Test Set to Your Base Station
Connecting the Test Set to Your Base Station
The connections shown in Figure 2-1 indicate a “generic” base station
using a test interface for audio test signals and a laptop computer
running a control program to control the base station. A power splitter
is used for testing the receiver ports. Although this is a common setup
for performing tests, audio and RF connections to base stations and the
ways base stations are controlled vary among manufacturers.
Figure 2-1
Connections Between the Test Set and the Base Station
Audio
Audio
Out
In
PARALLEL PORT
RF IN/OUT Port
DUPLEX OUT
(RF Gen Out)
(High Power RF Input)
ANT IN
(≤60mW)
side1_75.eps
AMPS BASE STATION
1
S
2
Receive A
Power
Splitter
Receive B
TX Mod
RX Audio
Audio Signal
Test Interface
Laptop Running Control Program
Audio Test Signal
breakout port.
Local Control
Port
TX
32
Chapter 2
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Testing AMPS Base Stations
Compensating for Signal Losses and Gains in the Test Setup
Compensating for Signal Losses and Gains in the Test
Setup
Signal losses or gains through cables, splitters, combiners, connectors,
amplifiers, or coaxial switches must be accounted for to ensure
measurement accuracy. These values are entered in the INSTRUMENT
CONFIGURE screen (press the Inst Config key).
Refer to "Measuring Insertion Losses" on page 51 for information about
measuring cable/system losses.
• Total losses/gains between the transmitter’s output and the Test
Set’s RF IN/OUT port are entered in the RF In/Out field. A
negative number (indicating a loss) causes the displayed TX power
measurement to be increased by the entered amount. A positive
number (indicating a gain) causes the RF analyzer to decrease the
displayed TX power measurement by the entered amount.
• Total losses between the Test Set’s DUPLEX OUT port and the base
station’s receive port(s) are entered in the Duplex Out field as a
negative number (such as −1.2). The RF Generator will
automatically increase its level out of the DUPLEX OUT port by the
value entered to compensate for the loss.
Figure 2-2
Entering Test System Losses and Gains
Set the RF Level Offset
field to On.
On/Off
Chapter 2
Testing AMPS Base Stations
LS AMPS
Enter the loss or gain
between each port and the
base station.
Chapter 2
33
Main Menu
Testing AMPS Base Stations
Transmitter Frequency Error/Offset and Power Test
Transmitter Frequency Error/Offset and Power Test
This test compares the measured center frequency of the base station to
the AMPS channel standard. The resulting difference is the frequency
error (also called the frequency offset). The measurement can be
displayed in frequency units (Hz, kHz, MHz) or in parts per million
(ppm). Measurements are made with all modulation turned off.
The transmitter’s power can be measured any time the transmitter is
keyed, but may not be accurate unless all modulation is turned off.
Transmitter power may be specified by the manufacturer in units of
watts (W), milliwatts (mW), dBm, Volts (V), or millivolts (mV).
Prerequisites
The following conditions must be met before testing:
❒ The Test Set is turned on and Preset was pressed to establish a
known instrument state.
❒ You have configured the Test Set for channel or frequency tuning as
necessary (see “Using Channel Numbers to Set Analyzer and
Generator Frequencies” on page 68).
❒ You have specified any gains or losses in your test system (see
“Compensating for Signal Losses and Gains in the Test
Setup” on page 33).
Begin Testing
1. Turn off the base station’s RF transmitter. A transmitter can be
damaged if it is not transmitting into a specified load, such as an
antenna, power amplifier, duplexer, or power meter with a 50Ω
input impedance.
2. Verify that the transmitter’s rated RF power (or the level out of the
power amplifier if applicable) does not exceed the level printed next
to the Test Set’s RF IN/OUT connector.
3. Connect the transmitter’s RF output to the Test Set’s RF IN/OUT
port.
4. Turn off any modulation signals to the base station.
• Turn off the SAT tone.
• Turn off any data (digital) modulation signals.
• Turn off any audio (voice) modulation signals.
5. Press the RF Anl key to access the RF ANALYZER screen.
6. Enter the transmitter’s RF Channel number.
34
Chapter 2
Main Menu
Testing AMPS Base Stations
Transmitter Frequency Error/Offset and Power Test
7. Turn on the transmitter. The TX Freq Error and TX Power
measurements are displayed.
Note: Disregard any values shown for FM Deviation and AF Freq at
this time.
Figure 2-3
Transmitter Frequency Error and Power Test Results
Chapter 2
Testing AMPS Base Stations
Chapter 2
35
Main Menu
Testing AMPS Base Stations
Transmitter SAT Frequency and Deviation
Transmitter SAT Frequency and Deviation
This test measures the transmitter’s Supervisory Audio Tone (SAT)
frequency and deviation in the absence of any other modulating signal.
Prerequisites
The following conditions must be met before testing:
❏ The Test Set is turned on and Preset was pressed to establish a
known instrument state.
❒ You have configured the Test Set for channel tuning (see “Using
Channel Numbers to Set Analyzer and Generator
Frequencies” on page 68).
❒ You have specified any gains or losses in your test system (see
“Compensating for Signal Losses and Gains in the Test
Setup” on page 33).
Test Procedure
1. Turn off the base station’s RF transmitter. A transmitter can be
damaged if it is not transmitting into a specified load, such as an
antenna, power amplifier, duplexer, or power meter with a 50Ω
input impedance.
2. Verify that the transmitter’s rated RF power (or the level out of the
power amplifier if applicable) does not exceed the level printed next
to the Test Set’s RF IN/OUT connector.
3. Connect the transmitter’s RF output to the Test Set’s RF IN/OUT
port.
4. Turn off the voice modulation to the transmitter.
5. Turn off data modulation to the transmitter.
6. Enable SAT transmission.
7. Press Shift, RF Anl (AF Anl) to access the AF ANALYZER screen.
36
Chapter 2
Main Menu
Testing AMPS Base Stations
Transmitter SAT Frequency and Deviation
8. Set the Filter 2 field to 6 kHz BPF. This helps remove unwanted
noise.
6kHz BPF
9. Press the RF Anl key to access the RF ANALYZER screen.
10.Enter the transmitter’s channel number in the RF Channel field.
11.Turn on the transmitter. The FM Deviation and AF Freq for the
SAT are displayed (as well as Frequency Error and TX Power).
Figure 2-4
SAT Frequency and Deviation Test Results
SAT Deviation
SAT Frequency
Chapter 2
Testing AMPS Base Stations
Chapter 2
37
Main Menu
Testing AMPS Base Stations
Transmitter Data Deviation
Transmitter Data Deviation
This test measures the transmitter’s digital data deviation in the
absence of any other modulating signal.
Prerequisites
The following conditions must be met before testing:
❒ The Test Set is turned on and Preset was pressed to establish a
known instrument state.
❒ You have configured the Test Set for channel tuning (see “Using
Channel Numbers to Set Analyzer and Generator
Frequencies” on page 68).
❒ You have specified any gains or losses in your test system (see
“Compensating for Signal Losses and Gains in the Test
Setup” on page 33).
Test Procedure
1. Turn off the base station’s RF transmitter. A transmitter can be
damaged if it is not transmitting into a specified load, such as an
antenna, power amplifier, duplexer, or power meter with a 50Ω
input impedance.
2. Verify that the transmitter’s rated RF power (or the level out of the
power amplifier if applicable) does not exceed the level indicated
next to the Test Set’s RF IN/OUT connector.
3. Connect the transmitter’s RF output to the Test Set’s RF IN/OUT
connector.
4. Turn off voice modulation to the transmitter.
5. Turn off the SAT to the transmitter.
6. Turn on the data modulation to the transmitter.
7. Press Shift, RF Anl (AF Anl) to access the AF ANALYZER screen.
38
Chapter 2
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Testing AMPS Base Stations
Transmitter Data Deviation
8. Set Filter 1 to <20Hz HPF.
9. Set Filter 2 to >99kHz LP.
<20Hz HPF
>99kHz LPF
10.Press the RF Anl key to access the RF ANALYZER screen.
11.Enter the transmitter’s channel number in the RF Channel field.
12. Turn on the transmitter. The FM Deviation from the data is
displayed.
Figure 2-5
Data Deviation Test Results
Data Deviation
Chapter 2
Testing AMPS Base Stations
Chapter 2
39
Main Menu
Testing AMPS Base Stations
Transmitter Maximum Voice Deviation
Transmitter Maximum Voice Deviation
This test measures the transmitter’s maximum FM Deviation by a voice
signal in the absence of any other modulation signal.
Prerequisites
The following conditions must be met before testing:
❒ The Test Set is turned on and Preset was pressed to establish a
known instrument state.
❒ You have configured the Test Set for channel tuning (see “Using
Channel Numbers to Set Analyzer and Generator
Frequencies” on page 68).
❒ You have specified any gains or losses in your test system (see
“Compensating for Signal Losses and Gains in the Test
Setup” on page 33).
Test Procedure
1. Turn off the base station’s RF transmitter. A transmitter can be
damaged if it is not transmitting into a specified load, such as an
antenna, power amplifier, duplexer, or power meter with a 50Ω
input impedance.
2. Verify that the transmitter’s rated RF power (or the level out of the
power amplifier if applicable) does not exceed the level indicated
next to the Test Set’s RF IN/OUT connector.
3. Connect the transmitter’s RF output to the Test Set’s RF IN/OUT
port.
4. Connect the transmitter’s audio modulation (voice) input to the Test
Set’s AUDIO OUT port.
5. Enable the transmitter’s audio (speech) modulation.
6. Turn off any modulation signals to the base station other than audio.
7. Press the RF Anl key to access the RF ANALYZER screen.
8. Enter the transmitter’s channel number in the RF Channel field.
40
Chapter 2
Main Menu
Testing AMPS Base Stations
Transmitter Maximum Voice Deviation
9. Press the RF Gen key to access the RF GENERATOR screen.
10. Set the AFGen1 To field to Audio Out, and a level of 50 mV.
Audio Out
Initially 50 mV
11. With the cursor still positioned in front of the level setting
(50 mV), press the Incr Set key and enter 20 dB using the keypad.
12. Turn on the transmitter.
13. With the cursor still positioned in front of the level setting (50 mV)
press the up-arrow key once to increment the level by 20 dB.
14.Read the FM deviation.
15.Vary the AFGen1 Freq from 300 Hz to 3 kHz and observe the FM
deviation at each frequency. Deviation must not exceed the rated
system specification of ±12 kHz at any time.
...changing
the AFGen1
Freq from
300 Hz to
3 kHz.
Increment
AFGen1
level by
20 dB.
16.Disconnect the cable to the transmitter’s audio modulation input
(connected in step 4) to reduce the chance of errors in your next
transmitter test.
Chapter 2
41
Main Menu
Chapter 2
Testing AMPS Base Stations
Watch the
FM Deviation
while...
Testing AMPS Base Stations
Receiver Sensitivity (SINAD)
Receiver Sensitivity (SINAD)
This test measures the receiver’s ability to demodulate voice signals
from very low RF carrier levels.
Prerequisites
The following conditions must be met before testing:
❒ The Test Set is turned on and Preset was pressed to establish a
known instrument state.
❒ You have configured the Test Set for channel tuning (see “Using
Channel Numbers to Set Analyzer and Generator
Frequencies” on page 68).
❒ You have specified any gains or losses in your test system (see
“Compensating for Signal Losses and Gains in the Test
Setup” on page 33).
Test Procedure
1. Turn off the base station’s transmitter.
2. Turn the base station’s radio squelch, data, and SAT off.
3. Connect the base station receiver’s inputs to the Test Set’s DUPLEX
OUT port.
4. Connect the receiver’s audio output to the Test Set’s AUDIO IN
port(s). Unless the receiver’s audio out amplifier is not referenced to
chassis ground, you should only connect to the AUDIO IN - HI port.
For floating output amplifiers, see the HP 8935 Reference Manual
for information on using the AUDIO IN - LO connection.
5. Press CDMA Gen to access the CDMA GENERATOR screen.
42
Chapter 2
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Testing AMPS Base Stations
Receiver Sensitivity (SINAD)
6. Set the CW RF Path field to Bypass. This turns off the IQ
modulation used for CDMA tests.
Set to Bypass.
Bypass/IQ
7. Press SHIFT, RFAnl (AF Anl) to access the AF ANALYZER screen.
8. Set the AF Anl In field to Audio In.
9. Set the Filter 1 field to C Message.
Audio In
C Message
10. Press the RF Gen key to access the RF GENERATOR screen.
11. Change the lower audio measurement to SINAD. This is done by
selecting the existing measurement and choosing SINAD from a list
of choices.
12. Set the AFGen1 To field to FM and turn it on (2.9 kHz) using the
On/Off key.
13. Enter the transmitter’s channel number in the RF Channel field.
Chapter 2
43
Main Menu
Chapter 2
Testing AMPS Base Stations
Set to Audio In.
Set to C Message.
Testing AMPS Base Stations
Receiver Sensitivity (SINAD)
14. Set an initial RF generator level in the Amplitude field. This value
depends on the sensitivity of the receiver; but −90 dBm should be a
good starting point. At this point you should be able to turn the Test
Set’s Volume knob clockwise and hear a 1 kHz tone from the Test
Set’s speaker.
Set to
SINAD.
Enter the
RF Channel number.
Turn on FM
modulation
for the RF
Generator.
Set an initial
level of
−90 dBm.
15. Set the Amplitude field to increment in 1 dB units. To do this,
position the cursor in front of the Amplitude field, press the
Incr Set key, and enter 1 dB using the keypad.
16. With the cursor front of the field, turn the knob to decrease the
Amplitude setting until the desired SINAD measurement is
displayed (commonly 12 dB). You should hear the 1 kHz tone get
noisy as you approach the 12 dB SINAD reading.
Figure 2-6
SINAD Test Results
...the SINAD
reading goes
down and the
signal through
the Test Set’s
speaker gets
noisy.
As you decrease the
RF generator
amplitude into your
receiver....
44
Chapter 2
Main Menu
Testing AMPS Base Stations
Receiver Squelch Threshold
Receiver Squelch Threshold
This test determines the RF Signal level where the receiver squelches
(switches off) the audio output.
Prerequisites
The following conditions must be met before testing:
❒ The Test Set is turned on and PRESET was pressed to establish a
known instrument state.
❒ You have pressed the Preset key to establish a known instrument
state.
❒ You have configured the Test Set for channel tuning (see “Using
Channel Numbers to Set Analyzer and Generator
Frequencies” on page 68).
❒ You have specified any gains or losses in your test system (see
“Compensating for Signal Losses and Gains in the Test
Setup” on page 33).
Test Procedure
1. Turn off the base station’s transmitter.
2. Turn the base station’s data and SAT off.
3. Connect the base station receiver’s inputs to the Test Set’s DUPLEX
OUT port.
5. Press CDMA Gen to access the CDMA GENERATOR screen.
Chapter 2
45
Main Menu
Chapter 2
Testing AMPS Base Stations
4. Connect the receiver’s audio output to the Test Set’s AUDIO IN
port(s). Unless the receiver’s audio out amplifier is not referenced to
chassis ground, you should only connect to the AUDIO IN - HI port.
For floating output amplifiers, see the HP 8935 Reference Manual
for information on using the AUDIO IN - LO connection.
Testing AMPS Base Stations
Receiver Squelch Threshold
6. Set the CW RF Path field to Bypass. This turns off the IQ
modulation used for CDMA tests.
Set to Bypass.
Bypass/IQ
7. Press SHIFT, RFAnl (AF Anl) to access the AF ANALYZER screen.
8. Set the AF Anl In field to Audio In.
9. Press the RF Gen key to access the RF GENERATOR screen.
10.Set the AFGen1 To field to FM and set it to 8 kHz deviation.
11.Enter the transmitter’s channel number in the RF Channel field.
12.Set the Atten Hold field to On. The prevents the Test Set from
changing its internal attenuators during the test to prevent
erroneous squelch interruption.
46
Chapter 2
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Testing AMPS Base Stations
Receiver Squelch Threshold
13.Set an initial RF generator level in the Amplitude field. This value
depends on the sensitivity of the receiver; but −90 dBm should be a
good starting point. At this point you should be able to turn the Test
Set’s Volume knob clockwise and hear a 1 kHz tone from the Test
Set’s speaker.
Enter the
RF channel
number.
Set a initial
level of
−90 dBm.
8.00
Turn on FM
modulation
for the RF
generator
and set to
8 kHz.
On/off
Set to On.
14.Set the Amplitude field to increment in 1 dB units. To do this,
position the cursor in front of the Amplitude field, press the
Incr Set key, and enter 1 dB using the keypad.
15.With the cursor in front of the Amplitude field, turn the knob
counterclockwise to decrease the Amplitude setting until the
received audio is no longer heard on the Test Set’s speaker (or until
the AC Level reading drops suddenly). The RF amplitude at which
the audio signal is no longer output is the squelch threshold.
Chapter 2
Testing AMPS Base Stations
Chapter 2
47
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Testing AMPS Base Stations
Receiver Squelch Threshold
48
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Main Menu
3
Utility Procedures
This chapter contains procedures and instructions that will help you
make the most efficient use of your Test Set.
Chapter 3
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49
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Beeper
Beeper
The beeper notifies you when 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.
Beeper Control
1. Press the Inst Config key to go to the INSTRUMENT CONFIGURE
screen.
2. Select Beeper.
3. Choose from Off, Quiet, or Loud.
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Measuring Insertion Losses
Measuring Insertion Losses
To make accurate power and receiver measurements, the signal loss
through the cables or other devices used in your test setup must be
known and entered into the Test Set’s INSTRUMENT CONFIGURE
screen to compensate for these losses.
Signal losses are measured using a built-in automated routine that
runs on the Test Set’s IBASIC controller. Losses can be calibrated at a
discrete (single) frequency or over a frequency range. This is one
routine included in a set of utility procedures called the RF TOOLS.
During the test, a calibrated signal goes through two 6-dB
attentuators/pads (such as Mini-Circuits model NAT-6-60) and a short
type-N male-to-male cable to establish a known reference point. The
Test Set then prompts you to connect the device under test to measure
the additional loss through that device. (The pads and cable are not
part of the standard equipment shipped with the Test Set.)
Figure 3-1 shows how to load and run the RFTOOLS routines and
select the desired insertion loss test.
Figure 3-1
Loading and Running the Insertion Loss Test
1 Select ROM.
2 Select RFTOOLS.
3 Select Run Test.
When the screen below appears.......
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Utility Procedures
...use the knob to move the cursor and
select either Discrete Freq Insertion
Loss or Swept Insertion Loss. When
run, the test prompts you to enter the
necessary test frequency information
and displays setup diagrams. Make the
indicated connections and follow
instructions as you are prompted by the
program.
Utility Procedures
Memory Cards
Memory Cards
The slot on the front of the Test Set is used for memory cards. The slot
is used for the following:
• Storage of save/recall registers
• Loading of software (either HP or self-written)
• Collecting data (only when using software)
• Upgrading firmware or software
Memory Cards and Intialization
There are several types of memory cards available, and the following
cards are used with the Test Set:
• SRAM: used for save/recall and data storage
• Flash ROM: used when upgrading firmware
• OTP (One-Time Programmable): used for HP software
Flash ROM cannot be used for collecting data and Save/Recall.
Data cannot be loaded on Flash RAM and OTP cards with the Test Set’s
memory card slot.
SRAM can be initialized with the Test Set.
Initializing SRAM Cards for Save/Recall and Data
Collection
1. Insert the SRAM card into the slot. If the card is uninitialized, a
message will appear at the top of the display.
2. Press Shift and IO Confg to display the I/O CONFIGURE screen.
3. Using the knob, locate the FORMAT CARD field.
4. Select the FORMAT CARD field. A prompt will appear at the top of
the display. Pressing Yes will erase and initialize the card.
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Oscilloscope
Oscilloscope
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 (SCOPE) is provided from various sources
including direct inputs to the Audio Input and Modulation Input
connectors. Oscilloscope functions are accessed from the AF Anl and
SCOPE screens.
Figure 3-2
Inputs and Filters for the Oscilloscope
FM Demod
AM Demod
Controlled by
AF Anl In
field
Input
SSB Demod
AUDIO IN connector
Controlled by
Scope To
field
Filters
Analog Modulation In
connector
De-emp
FM Mod
AM Mod
Notch
Audio Out
To
Scope
To
Audio Monitor
Out connector
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53
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Oscilloscope
Selecting the Oscilloscope’s Input
1. Press Shift, then RF Anl (AF Anl) to select the AF ANALYZER screen.
2. Select the AF Anl Input field. A list of choices appears.
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 rear panel MODULATION
INPUT 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 AUDIO OUT connector.
4. The input to the oscilloscope is displayed on the SCOPE screen.
Selecting the Oscilloscope’s Filters
1. Press Shift, then
RF Anl
(AF Anl) to select the AF ANALYZER screen.
2. Select the Scope To field. A list of choices should appear.
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 filter
circuitry. (ac coupled)
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Oscilloscope
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:
1. Press Shift, then Spec Anl (Scope) to go to the SCOPE screen.
2. Select the Controls field, then choose Trigger from the list of
choices.
Chapter 3
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55
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Oscilloscope
Using the 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:
1. Press Shift, then
Spec Anl
(Scope) to go to the SCOPE screen.
2. Select the Controls field, the choose Marker from the list of
choices.
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Online Help
Online Help
The Test Set contains help screens which briefly identify the most
commonly used features of the Test Set.
Access the help screens by pressing the Help key. Use the knob to select
the Help Topic of interest.
Pressing the Prev key allows you to switch between the HELP screen
and the previous screen you had accessed. This is particularly useful
when you are following a procedure described in the HELP screen.
Help Screen Display
Figure 3-3
Help Screen Display
Chapter 3
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57
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Ports: HP-IB, Serial and Parallel
Ports: HP-IB, Serial and Parallel
There are three types of data ports on the Test Set: HP-IB, Serial, and
Parallel. They each have specific purposes.
HP-IB Port
This port is provided on the Test Set for IEEE 488.2 communications. It
is used to control the Test Set with an external IBASIC controller, or to
control other HP-IB equipped devices.
This port can be used with an external programming device when
writing programs, although it is also common to program the Test Set
using a serial port.
The default address of the HP-IB port is 14. This is commonly used in
IBASIC programs. An example command providing output to the port is
OUTPUT 714;”*RST”, which presets the Test Set.
It has two modes, which correspond to modes useful when
programming the Test Set. Talk&Listn is the normal mode. Use
Control only when you need to control HP-IB instruments external to
the Test Set.
Controlling the HP-IB Port
1. Press Shift, then the Inst Config (I/O Config) key to display the I/O
CONFIGURE screen.
2. Set the address of the HP-IB port with the HP-IB Adrs field.
3. Use the Mode field to set the mode to either Talk&Listn or
Control.
Serial Ports
Three serial ports are available on the Test Set. Port 9 is used for
printing, IBASIC control and data communications. Serial ports 10 and
11 are used only for data communications from IBASIC.
Configuring Serial Ports
All serial ports are configured via the I/O CONFIGURE screen. Baud
Rate, Parity, Data Length, Stop Length and Flow Control are all
configured in this screen. Additionally, port 9 can be configured for
IBASIC control in this screen.
1. Press Shift, then
screen.
Inst Config
(I/O Config) to go to the I/O CONFIGURE
2. Select Serial Port to choose the port you want to configure.
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Ports: HP-IB, Serial and Parallel
3. Change the settings for the port as desired.
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: Assume you have a printer attached to Serial Port 9. Power is
off to the printer. Before you start to run any IBASIC software (for
example, the RFTOOLS program), youmust make sure the printer is
attached and power is on to the printer.
Using Serial Ports for Printing
Serial Port 9 is the only serial port that can be used for printing. See
“Printing” on page 61.
1. If you want to change the serial port configuration, see “Configuring
Serial Port 9 for IBASIC Communications” on page 59. It is not
necessary to change the Serial_9 In field.
2. Press Shift, then Print (Printer Config) to display the PRINTER
CONFIGURE screen.
3. Select Printer Port. Choose Serial 9 to direct the output to
Serial Port 9.
4. Press Print to print the currently displayed screen.
Configuring Serial Port 9 for IBASIC Communications
The internal connection to Serial Port 9 is controlled in the I/O
CONFIGURE screen. The port has two purposes with IBASIC:
• Inst: Serial Port 9 is connected to a terminal (e.g. a PC running
Windows Terminal program). IBASIC commands are input from the
terminal and are used to control the Test Set.
• IBASIC: Serial Port 9 is connected to a device that can communicate
with an IBASIC program already running inside the Test Set.
Typically used for input/output to a PC or other device.
1. Press Shift, then Inst Config (I/O Config) to go to the I/O CONFIGURE
screen.
2. Select Serial_9 In to toggle between Inst and IBASIC.
Configuring Serial Ports 10 and 11
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Serial Ports 10 and 11 are only configured via IBASIC commands. See
the Programmer’s Guide for commands which control these ports.
Utility Procedures
Ports: HP-IB, Serial and Parallel
Parallel Ports
There are two parallel ports on the Test Set.
Parallel Port 15 is the only parallel port that can be used for printing. It
can be selected in the PRINTER CONFIGURATION screen.
Both parallel ports (Port 15 and Port 16) may be used for controlling a
base station. The port can be put in an input or an output mode. The
data is then written or read under IBASIC control. When in either of
these modes, the printing function on Parallel Port 15 is disabled.
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Printing
Printing
You can print from the Test Set via Parallel Port 15, Serial Port 9, or
the HP-IB port.
Note that data collection is not the same as printing. Data collection
can only be done from a software program.
Configuring the Test Set for Printing
1. Press Shift, then Print (Printer Config) to display the PRINTER
CONFIGURE screen.
2. Select the Model field and choose the printer that most closely
matches your printer.
3. Select the Printer Port field and choose the port you will connect
the printer to. If necessary, use the I/O CONFIGURE screen to set
up addresses and communication modes.
a. SERIAL PORT 9: This is the uppermost serial port. Configuration
defaults are 9600, none, 8, 1, Xon/Xoff.
b. HP-IB: The HP-IB address (HP-IB Adrs) is set to printer address
701. Enter this number as 01. Set Mode to CONTROL. (The
default address 14 is reserved for an external controller.)
c. PARALLEL PORT: There are two ports available. Port 15 (the
printer port) is the uppermost port.
4. Connect the proper cable to the connector you selected.
• SERIAL PORT: standard NULL MODEM cable.
• HP-IB: HP-IB cable (such as HP 10833B)
• PARALLEL PORT: parallel cable
5. Change the FF (form feed) and Lines/Page as needed.
Printing a Screen
1. Configure the Test Set for Printing.
2. Go to the screen you want to print.
3. Press the Hold key if you want to temporarily stop the measurement.
(Optional).
5. To cancel the print, go to the PRINTER CONFIGURE screen and
select Abort Print.
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4. Press the Print key. Data will be sent to the printer.
Utility Procedures
Measuring Swept Return Loss
Measuring Swept Return Loss
This procedure measures the return loss (VSWR) of an antenna using
an IBASIC program that is in the Test Set’s memory. An external
directional bridge must be provided (such as an Eagle RLB 150X5
Option N5A or equivalent).
Press the Menu key to access the SOFTWARE MENU screen, and follow
the instructions illustrated on the following pages.
Figure 3-4
Loading and Running the Return Loss Program
Select ROM.
Select RFTOOLS.
Select Run Test.
Use the knob to move the cursor and
select Swept Return Loss.
(Next Page)
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Measuring Swept Return Loss
Figure 3-5
Entering Swept Return Loss Measurement Information
Enter the Start and Stop Frequency
values for the measurement.
The Max expected loss value is used to
determine the graphics scaling when the
measurement is displayed.
The DUPLEX OUT level is adjustable
to reduce the RF level used when measuring the loss of sensitive devices, and
to minimize the amount of transmitted
power during the test (if necessary).
Select Begin Tst (k1) to continue.
Figure 3-6
Swept Return Loss Measurement Connections
Two 6 dB attenuators (pads), two short
cables, and the return loss bridge are
used to establish a calibration reference without the device under test
connected. Press Proceed (k1) to continue.
As indicated by the NOTE on the
drawing, your return loss bridge may
be marked differently than shown.
When measuring the swept return loss
of a transmission line that is not terminated at an antenna, terminate the
line into a 50Ω load.
Device under test
Chapter 3
Chapter 3
Utility Procedures
After connecting your device under
test, press Proceed (k1) to make the
measurement.
Termination
63
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Utility Procedures
Measuring Swept Return Loss
The plot in Figure 3-7 is for a cellular band antenna, swept from
800 MHz to 999 MHz. The plot (and the text above it) indicates that the
maximum return loss is at 885.4 MHz. This is the point where the
antenna is radiating the maximum amount of signal being fed into it
from the return loss bridge, and therefore the Test Set is receiving the
least amount of reflected (returned) energy back.
Figure 3-7
Swept Return Loss Measurement Results
Proceed to the run the
test again or to select a
different test.
Save Plot to an
initialized writeable PC
card. (See "Memory
Cards" on page 52.)
Perform a Screen
Dump to print the screen
to a connected printer.
(See "Printing" on page
61.)
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Tracking Generator
Tracking Generator
The tracking generator is typically used for measuring return loss and
insertion loss. It also allows for quick and accurate characterization of
filters, duplexers, combiners, and RF to IF conversions. Broadband RF
devices can be characterized with single sweeps due to the full-span
sweep capability to 1 GHz. The tracking generator also includes
amplitude and frequency offset. Output from the tracking generator are
provided at either the RF IN/OUT or DUPLEX OUT connector.
Using the Tracking Generator
To measure return loss, see "Measuring Swept Return Loss" on page 62.
To measure insertion loss, see "Measuring Insertion Losses" on page 51.
Features of the tracking generator are listed below.
• Sweep: the start and stop frequencies of the sweep are determined
by the spectrum analyzer’s Main menu. The Span determines the
band, and Center Freq defines the midpoint of the sweep.
• Offset Freq: sets the difference between the instantaneous
frequency of the tracking generator and the center frequency of the
spectrum analyzer. This value can be positive or negative.
• Amplitude: sets the amplitude of the signal.
• Norm/Invert: With Norm, the tracking generator sweeps from low
to high frequencies. With Invert, it sweeps from high to low
frequencies.
NOTE
The offset function is useful when looking at frequency translating
devices, or anytime you need to sweep around a frequency while
analyzing another. During normal operation, offset is set to 0.00.
Figure 3-8
Spectrum Analyzer with Tracking Generator Controls
Displayed
Chapter 3
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Tracking
Generator
Controls
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User Keys
User Keys
User keys instantly access instrument settings without using the knob.
You can use user keys to move quickly between fields on the same
screen, and to access field settings that are not normally available on
the screen you are using. When the user key is pressed, the cursor
instantly moves to, and selects, the assigned field.
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’. (To use one of these keys, press Shift, then k1, k2, or k3.)
Local user keys are used to move between settings on the screen that is
currently displayed. Five local user keys are available for each screen:
k1, k2, k3, k4, and k5. You can assign these keys yourself, or use the
factory preset assignments.
Displaying the Pre-assigned Local User Keys
1. Press the Shift key.
2. Press the k4 (Assign) key.
3. Press Enter. Now the factory preset keys are displayed.
Assigning a Local User Key
1. Move the cursor to the field you want to assign to a user key.
2. Press the Shift key.
3. Press the k4 (Assign) key.
4. Press the user key you want to assign to the field you chose. The
number of the user key will appear beside the field when you move
the cursor.
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User Keys
Assigning a Global User Key
1. Move the cursor to the field you want to assign to a user key.
2. Press the Shift key.
3. Press the k4 (Assign) key.
4. Press the Shift key.
5. Press the user key you want to assign to the field you chose (k1, k2, or
k3). Global user keys are indicated as k1’, k2’, and k3’ on the front
panel to indicate that they are shifted functions. The number of the
user key does not appear beside the field when using global user
keys.
To Release a User Key Assignment
Perform the same procedure for assigning a key, but instead of pressing
the k4 (Assign) key, press the k5 (Release) key.
Chapter 3
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Chapter 3
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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 LS AMPS to tell the Test Set you are
testing Land (base) Station AMPS radios. This automatically sets the
correct 45 MHz frequency offset needed to generate reverse channel
signals and analyze forward channel signals for an AMPS base station.
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 3-9
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 LS AMPS for testing
AMPS base stations.
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Using Channel Numbers to Set Analyzer and Generator Frequencies
RF Chan and Tune Freq Fields
NOTE
All of the test procedures in this document assume you are using
channel tuning. If you are using frequency tuning, enter the frequency
in the appropriate field(s).
When you use channel tuning, the RF ANALYZER and RF
GENERATOR screens displays an RF Channel field for entering the
channel to tune to or generate.
When you use frequency tuning, the RF ANALYZER screen replaces
the RF Channel field with the Tune Freq field for direct frequency
entry. The RF GENERATOR screen replaces the RF Channel field
with the RF Gen Freq field. For AMPS Base Station tests, remember
that there should always be a 45 MHz separation between the transmit
and receive frequencies (transmit frequency is 45 MHz greater than the
receive frequency).
Chapter 3
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Chapter 3
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Voltmeter
Voltmeter
A voltmeter is available in the Test Set, and can measure low level dc or
ac voltages. The input to the voltmeter is controlled by the AF Anl In
field in the AF ANALYZER screen.
CAUTION
Do not exceed the rated input to the Test Set for the DC Level and
AC Level measurements.
The connector best suited to making ac Level and dc Level
measurements is the AUDIO IN port.
Measuring AC Level and DC Level
1. Press Shift, then
RF Anl
(AF Anl) to go to the AF ANALYZER screen.
2. Select AF Anl In and choose Audio In.
3. Select Audio In Lo and choose Gnd. This sets the AUDIO IN LO
port to ground, which allows you to measure voltage at the AUDIO
IN HI port.
4. Attach a probe (for example a 1:1 oscilloscope probe) to the AUDIO
IN HI connector.
5. AC Level is displayed. To change to DC Level, select the AF Freq
measurement and choose DC Level from the displayed list of
choices.
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Index
Index
A
AC level
measuring, 70
AC volts
measuring, 70
AF Anl Input
field, 54
AF connections, 32
AMPS Base Stations
manual testing, 29
AMPS testing, 18
AMPS tests
receiver sensitivity (SINAD), 42
receiver squelch threshold, 45
transmitter data deviation, 38
transmitter frequency
error/offset and power, 34
transmitter maximum voice
deviation, 40
transmitter SAT frequency and
deviation, 36
AMPS Tests listed, 30
analyzer and generator
frequencies
using channel numbers, 68
Analyzing FM Carrier, 26
ANT IN port
overpower, 30
Antenna In field, 33
ANTENNA IN port
losses, 33
Assembly Level Repair Manual
calibration, 22
assigning global user keys, 67
assigning local user keys, 66
AUDIO IN port, 32
AUDIO OUT port, 32
automatic operation, 21
Available AMPS tests, 30
B
Base Station connections, 32
batteries
replacing, 18
beeper, 50
Index
C
cable losses
compensating, 33
cables
for printing, 61
HP-IB, 61
Null Modem, 61
calibration
Assembly Level Repair Manual,
22
when you change a module, 22
call center
Europe, 19
U.S., 19
Canada HP Direct, 19
CD-ROM
documentation, 20
Cell Band CDMA testing, 18
change battery procedure, 18
channel numbers
using, to set analyzer and
generator frequencies, 68
congratulations, 27
connections
base station, 32
FM Loopback test, 23
conventions used in his manual,
15
71
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Index
D
Data Deviation test, 38
DC level
measuring, 70
DC volts
measuring, 70
Displaying an FM Carrier, 26
Duplex Out field, 33
DUPLEX OUT port, 32
losses, 33
overpower, 30
E
entering test system losses and
gains, 33
European Call Center, 19
72
F
fields
selecting, 24
FM Carrier
analyzing, 26
displaying, 26
FM Loopback test, 23
FM Signal
displaying, 23
FM signal
generating, 24
frequencies
setting analyzer and generator,
68
Frequency Error test, 34
Index
Main Menu
Index
Index
G
generating an FM signal, 24
Getting Help, 19
Getting Started, 17
global user keys, 66
assigning, 67
releasing, 67
H
help
how to get, 19
online, 57
screen display, 57
hot keys
setting, 66
HP Direct
Canada, 19
Korea, 19
HP-IB communications
via the serial port, 59
HP-IB controller
internal to the Test Set, 21
HP-IB port
controlling, 58
modes, 58
Index
I
IBASIC Programs, 21
in this manual, 15
INSTRUMENT CONFIGURE
screen, 33
73
Main Menu
Index
K
k1, k2, k3, k4, k5
local user keys, 66
k1’, k2’, k3’
global user keys, 66
knob
using, 24
Korea HP Direct, 19
L
local user keys, 66
assigning, 66
preassigned, 66
releasing, 67
Loopback Test, 23
74
M
manual operation, 21
manual testing
AMPS base stations, 29
maximizing measurement
accuracy, 22
measurement accuracy
maximizing, 22
measurement port, 30
measuring path losses and gains,
31
memory cards, 52
modes of the Test Set, 21
Index
Main Menu
Index
Index
O
oscilloscope, 53
features, 53
filters and inputs, 53
marker, 56
selecting the filters, 54
selecting the input, 54
triggering, 55
P
parallel port
input and output modes, 60
ports 15 and 16, 60
path losses, 33
measuring, 31
PCMCIA card, 52
Flash ROM, 52
initializing, 52
OTP, 52
SRAM, 52
PCS CDMA testing, 18
port
HP-IB, 58
HP-IB, serial, parallel, 58
measuring AC or DC level, 70
printing via the serial port, 59
serial, 58
Power
measurement port, 30
Power calibration/compensation,
22
preassigned local user keys, 66
printing, 61
and data collection, 61
cables, 61
configuring the Test Set, 61
FF (Form Feed), 61
how to print a screen, 61
HP-IB, 61
lines per page, 61
parallel port, 61
ports, 61
serial port 9, 61
via the serial port, 59
probe
measuring AC or DC level, 70
Product Description, 18
Programmer’s Guide, 21
purchased software, 21
Index
R
RAM
backing up, 18
read me first, 31
Receiver Sensitivity test, 42
recevier squelch threshold, 45
return loss, 62
RF connections, 32
RF In/Out field, 33
RF IN/OUT port, 32
losses, 33
measuring power, 30
overpower, 30
RF Level Offset field, 33
75
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Index
S
sales offices, 19
SAT Deviation test, 36
SAT Frequency test, 36
screens
selecting, 24
serial port, 58
configuring, 58
configuring for HP-IB
communications, 59
port 9, configuring for HP-IB
communications, 59
port 9, configuring for printing,
59
ports 10 and 11, 59
using for printing, 59
signal losses and gains
compensating, 33
SINAD test, 42
software
manufacturer-specific, 21
purchased, 21
Spectrum Analyzer, 26
squelch threshold, 45
SRAM card
initializing, 52
systems
AMPS, 18
CDMA, 18
PCS CDMA, 18
T
temperature compensation
Pwr Zero, 22
test interface connections, 32
Test Set
documents included, 20
what’s in the box , 20
tips for selecting screens and
fields, 24
TMO web site, 19
tools contained in the Test Set, 18
tracking generator, 65
controls display, 65
offset frequency, 65
using, 65
TX Power, 30
TX Power test, 34
76
U
U.S. Call Center, 19
user keys
global, 66
local, 66
releasing, 67
setting, 66
Utility Procedures, 49
Index
Main Menu
Index
Index
V
Voice Deviation (max) test, 40
voltmeter, 70
connector, 70
volume
controlling beeper, 50
W
web site
TMO, 19
what to do next, 27
What’s Included with this Test
Set, 20
www.tmo.hp.com, 19
Index
77
Main Menu
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