HP 8568B Spectrum Analyzer Installation and Verification Manual

HP 8568B Spectrum Analyzer Installation and Verification Manual

®

Established 1981

Advanced Test Equipment Rentals

www.atecorp.com 800-404-ATEC (2832)

Installation and

Verification Manual

HP 8568B Spectrum Analyzer

Includes Option 001, Option 400,

Option 462, and Option 857

HP Part No. 08568-90119

Printed in USA September 1993

Notice.

The information contained in this document is subject to change without notice.

Hewlett-Packard makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

@ Copyright Hewlett-Packard Company 1993

All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

1400 Fountaingrove Parkway, Santa Rosa CA, 95403-1799, USA

Certification

Warranty

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.

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 Hewlett-Packard. Buyer shall prepay shipping charges to Hewlett-Packard and Hewlett-Packard shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products returned to

Hewlett-Packard from another country.

Hewlett-Packard warrants that its software and firmware designated by Hewlett-Packard for use with an instrument will execute its programming instructions when properly installed on that instrument. Hewlett-Packard 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.

HEWLETT-PACKARD 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. HEWLETT-PACKARD SHALL NOT BE

LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR

CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT,

TORT, OR ANY OTHER LEGAL THEORY.

iv

Assistance

Product wmintenance agreements and other customer assistance agreements are available for Hewlett-Rzckard products.

Pbr any assistance, contact pour nearest Hewlett-Fbckard Sales and

Service Ome.

Safety Notes

Caution

Warning

Instruction

Manual

The following safety notes are used throughout this manual.

Familiarize yourself with each of the notes and its meaning before operating this instrument.

Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or adhered to, could result in damage to or destruction of the instrument. Do not proceed beyond a

caution sign until the indicated conditions are fully understood and met.

Warning denotes a hazard. It calls attention to a procedure

which, if not correctly performed or adhered to, could result in

injury or loss of life. Do not proceed beyond a warning note until

the indicated conditions are fully understood and met.

The

instruction manual symbol. The product is marked with this symbol when it is necessary for the user to refer to the instructions in the manual.

General Safety

Considerations

Warning

Warning

Caution

Before this instrunwnt is switched on, make sure it has been

properly grounded through the protective conductor of the ac power cable to a socket outlet provided with protective earth contact.

Any interruption of the protective (grounding) conductor, inside or outside the instrument, or disconnection of the protective earth terminal can result in personal injury.

There are many points in the instrument which can, if contacted, cause personal injury. Be extremely careful.

Any adjustments or service procedures that require operation of the instrument with protective covers removed should be performed only by trained service personnel.

Before this instrument is switched on, make sure its primary power circuitry has been adapted to the voltage of the ac power source.

Failure to set the ac power input to the correct voltage could cause damage to the instrument when the ac power cable is plugged in.

V

How to Use This

Guide

This guide uses the

Front-Panel Key]

This represents a key physically located on the

following

instrument.

conventions:

Screen Text This indicates text displayed on the instrument’s screen.

HP 8568B

Documentation

Description

HP 8568B Installation and Verification

Manual

HP 8568B Operating and Programming

Manual

Included with the HP Model 8568B spectrum analyzer are manuals:

The Installation and Verification, the Operating and Programming

Manual, and the Performance Tests and Adjustments Manual.

HP part number 08568-90119

Contents: General information, installation, specifications, characteristics, and operation verification.

HP part number 08568-90041

Contents: Manual and remote operation, including complete syntax and command description. Accopanying this manual is the seperate, pocket-sized Quick Reference Guide, HP part number 5955-8970.

HP 8568B

Performance Tests and

Adjustments Manual

HP 85680B RF Section

Troubleshooting and

Repair Manual

HP 85662A IF-Display

Section

Troubleshooting and

Repair Manual

HP part number 08568-90118

Contents: Electrical performance tests and adjustment procedures.

HP part number 85680-90137

Contents: RF section service information.

HP part number 85662-90085

Contents: IF-Display section service information.

vi

Contents

1. General Information

What You’ll Find in This Chapter . . . . . . . . . . .

Introducing the HP 8568B . . . . . . . . . . . . . . .

Safety . . . . . . . . . . . . . . . . . . . . . . .

Accessories Supplied . . . . . . . . . . . . . . . .

Accessories Available . . . . . . . . . . . . . . . .

Options . . . . . . . . . . . . . . . . . . . . . .

Instruments Covered by This Manual . . . . . . . .

Serial Numbers . . . . . . . . . . . . . . . . . .

Calibration Cycle . . . . . . . . . . . . . . . . . .

HP-IB Address Selection . . . . . . . . . . . . . .

Bench Operation . . . . . . . . . . . . . . . . . .

Electrostatic Discharge Information . . . . . . . . . .

Static-Safe Accessories . . . . . . . . . . . . . . .

Routine Maintenance . . . . . . . . . . . . . . . . .

Cleaning the Display . . . . . . . . . . . . . . . .

Cleaning the RF Section’s Fan Filter . . . . . . . . .

Replacing the RF Section’s Battery . . . . . . . . .

Ordering Information . . . . . . . . . . . . . . . . .

Direct Mail Order System . . . . . . . . . . . . . .

Direct Phone-Order System . . . . . . . . . . . . .

Returning the Instrument for Service . . . . . . . . .

Service lags . . . . . . . . . . . . . . . . . . . .

Original Packaging . . . . . . . . . . . . . . . . .

Other Packaging . . . . . . . . . . . . . . . . . .

Sales and Service Offices . . . . . . . . . . . . . . .

2. Installation

What You’ll Find in This Chapter . . . . . . . . . . .

Safety . . . . . . . . . . . . . . . . . . . . . . .

Preparation for Use . . . . . . . . . . . . . . . . . .

Initial Inspection . . . . . . . . . . . . . . . . . .

Operating Environment . . . . . . . . . . . . . . .

Power Requirements . . . . . . . . . . . . . . . .

To Install Standard Instruments . . . . . . . . . . . .

To Install Option 908 and 913 Instruments . . . . . . .

To Install Option 010 Instruments . . . . . . . . . . .

To Set the HP-IB Address . . . . . . . . . . . . . . .

From the Front Panel . . . . . . . . . . . . . . . .

From the HP-IB Bus . . . . . . . . . . . . . . . .

From the HP-IB Address Switch . . . . . . . . . . .

2-7

2-13

2-20

2-20

2-20

2-20

2-l

2-l

2-3

2-3

2-3

2-3

2-4 l-5

1-6 l-7

1-7 l - l l-2 l-2 l-2 l-9 l-9 l-9 l-10 l-11

1-12

1-12

1-13

1-13

1-18

1-18

1-18

1-19

1-19

1-19

1-21 l-22

Contents-l

Contents-2

3.

Specifications

Introduction

Frequency

Range

. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

Measurement Range

Center Frequency

. . . . . . . . . . . . . . . .

Displayed Values . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

Readout Accuracy . . . . . . . . . . . . . . . .

Frequency Span

Range

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

Full Span . . . . . . . . . . . . . . . . . . . .

Frequency Count . . . . . . . . . . . . . . . . . .

Resolution . . . . . . . . . . . . . . . . . . . . .

Resolution Bandwidth . . . . . . . . . . . . . . .

Resolution Bandwidth (Option 462 6 dB Bandwidths)

Resolution Bandwidth (Option 462 Impulse

Bandwidths)

Stability

. . . . . . . . . . . . . . . . .

Bandwidth Shape . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

Residual FM . . . . . . . . . . . . . . . . . . .

Spectral Purity . . . . . . . . . . . . . . . . . . .

Power-Line-Related Sidebands . . . . . . . . . . .

Amplitude . . . . . . . . . . . . . . . . . . . . . .

Measurement Range . . . . . . . . . . . . . . . .

Amplitude Measurement Range . . . . . . . . . .

Displayed Values . . . . . . . . . . . . . . . . . .

3-5

3-6

Scale . . . . . . . . . . . . . . . . . . . . . .

Accuracy . . . . . . . . . . . . . . . . . . . . .

Reference Lines Accuracy . . . . . . . . . . . . . .

Dynamic Range . . . . . . . . . . . . . . . . . . .

Spurious Responses . . . . . . . . . . . . . . . .

Residual Responses . . . . . . . . . . . . . . . .

Gain Compression . . . . . . . . . . . . . . . .

Displayed Average Noise Level (Sensitivity) . . . .

3-7

3-7

3-7

3-7

3-8

3-8

Amplitude Uncertainty . . . . . . . . . . . . . . . .

3-9

Table Footnotes . . . . . . . . . . . . . . . . . . .

3-11

Marker . . . . . . . . . . . . . . . . . . . . . . . .

3-12

Sweep . . . . . . . . . . . . . . . . . . . . . . . .

3-12

Inputs . . . . . . . . . . . . . . . . . . . . . . . .

3-13

INPUT #l

. . . . . . . . . . . . . . . . . . . . .

3-13

INPUT #2 . . . . . . . . . . . . . . . . . . . . .

3-13 outputs

. . . . . . . . . . . . . . . . . . . . . . .

3-14

CAL OUTPUT

. . . . . . . .

3-14

1STLOOUTPUT : : : : : : : : : : . . . . . . . .

3-14

Options . . . . . . . . . . . . . . . . . . . . . . .

3-14

75 D Input Impedance, Option 001 . . . . . . . . . .

3-14

INPUT #l . . . . . . . . . . . . . . . . . . . .

3-14

400 Hz Power Line Frequency Operation, Option 400 .

3-15

Power Line Related Sidebands . . . . . . . . . . .

3-15

General . . . . . . . . . . . . . . . . . . . . . . .

3-16

HP-IB Interface Functions . . . . . . . . . . . . . .

3-16

Environmental . . . . . . . . . . . . . . . . . . .

3-16

Temperature . . . . . . . . . . . . . . . . . . .

3-16

Altitude . . . . . . . . . . . . . . . . . . . . .

3-16

Power Requirements . . . . . . . . . . . . . . . .

3-16

3-6

3-6

3-6

3-6

3-6

3-4

3-4

3-5

3-5

3-5

3-2

3-2

3-2

3-3

3-3

3-3

3-4

3-l

3-l

3-l

3-l

3-l

3-l

3-2

Humidity . . . . . . . . . . . . . . . . . . . . . .

3-16

Operation . . . . . . . . . . . . . . . . . . . .

3-16

Storage . . . . . . . . . . . . . . . . . . . . .

3-16

EM1 . . . . . . . . . . . . . . . . . . . . . . . .

3-16

X-Rays . . . . . . . . . . . . . . . . . . . . . . .

3-16

IF Section Serial Prefix 3004A and above . . . . . .

3-16

IF Section Serial Prefix 3001A and below

. . . . .

3-16

Warm-Up Time . . . . . . . . . . . . . . . . . . .

3-18

Frequency Reference . . . . . . . . . . . . . . .

3-18

Operation . . . . . . . . . . . . . . . . . . . .

3-18

Weight . . . . . . . . . . . . . . . . . . . . . . .

3-18

Dimensions . . . . . . . . . . . . . . . . . . . . .

3-19

4.

Characteristics

Frequency . . . . . . . . . . . . . . . . . . . . . .

4-l

Resolution . . . . . . . . . . . . . . . . . . . . .

4-l

Stability

. . . . . . . . . . . . . . . . . . . . . .

EXT TRIGGER . . . . . . . . . . . . . . . . . . .

4-2

Drift . . . . . . . . . . . . . . . . . . . . . . .

IF INP . . . . . . . . . . . . . . . . . . . . . . .

4-2

Spectral Purity . . . . . . . . . . . . . . . . . . .

VIDEO INP

. . . . . . . . . . . . . . . . . . . . .

4-2

Noise Sidebands

. . . . . . . . . . . . . . . . .

Inputs . . . . . . . . . . . . . . . . . . . . . . . .

4-2

Amplitude . . . . . . . . . . . . . . . . . . . . . .

Third Order Intermodulation Distortion

. . . . . . .

4-3

Average Noise Level

. . . . . . . . . . . . . . . .

Residual Responses . . . . . . . . . . . . . . . . .

4-3

Log to Linear Switching . . . . . . . . . . . . . . .

4-3

Frequency Response (Flatness) Uncertainty

. . . . . .

4-3

4-4

4-4

4-5

RF INPUTS . . . . . . . . . . . . . . . . . . . . .

4-5

Isolation . . . . . . . . . . . . . . . . . . . . .

4-5

LO Emission . . . . . . . . . . . . . . . . . . .

4-5

4-5

4-5

4-5

FREQ REFERENCE (IN) . . . . . . . . . . . . . . .

4-6 outputs . . . . . . . . . . . . . . . . . . . . . . .

4-6

Display Outputs . . . . . . . . . . . . . . . . . .

4-6

Recorder Outputs . . . . . . . . . . . . . . . . . .

SWEEP

. . . . . . . . . . . . . . . . . . . . . .

4-6

4-6

VIDEO . . . . . . . . . . . . . . . . . . . . . . .

4-7

PENLIFT . . . . . . . . . . . . . . . . . . . . . .

4-7

21.4 MHz IF OUTPUT . . . . . . . . . . . . . . . .

4-7

FREQ REFERENCE (OUT) . . . . . . . . . . . . . .

4-7

VIDEO OUT

. . . . . . . . . . . . . . . . . . . .

4-7

IF OUT

. . . . . . . . . . . . . . . . . . . . . .

4-8

PROBE POWER (front panel)

. . . . . . . . . . . .

4-8

General . . . . . . . . . . . . . . . . . . . . . . .

4-8

Acoustic Noise Emission/ Geraeuschemession . . . . .

4-8

Function Descriptions . . . . . . . . . . . . . . . . .

4-9

Sweep . . . . . . . . . . . . . . . . . . . . . . .

4-9

Cathode Ray Tube

. . . . . . . . . . . . . . . .

4-10

Instrument State Storage

. . . . . . . . . . . . .

4-10

Remote Operation

. . . . . . . . . . . . . . . .

4-10

Contents-3

Contents-4

5. Operation Verification

What You’ll Find in This Chapter . . . . . . . . . . .

Test System Configuration . . . . . . . . . . . . . . .

Equipment Connections . . . . . . . . . . . . . . . .

5-l

5-5

5-5

Program Loading . . . . . . . . . . . . . . . . . . .

Program Operation . . . . . . . . . . . . . . . . . .

5-7

5-7

HP-IB Addresses . . . . . . . . . . . . . . . . . . .

5-9

Error Messages . . . . . . . . . . . . . . . . . . . .

5-10

Test Descriptions . . . . . . . . . . . . . . . . . . .

5-10

1. Input Attenuator Switching Uncertainty . . . . .

5-11

2. IF Gain Uncertainty . . . . . . . . . . . . . . .

5-12

3. Scale Fidelity (Log) . . . . . . . . . . . . . . .

5-13

4. Scale Fidelity (Linear) . . . . . . . . . . . . . .

5-14

5. Log Scale Switching Uncertainty . . . . . . . . .

5-15

6. Resolution Bandwidths . . . . . . . . . . . . . .

5-16

7. Impulse and Resolution Bandwidths (Opt. 462

Impulse Bandwidth) . . . . . . . . . . . . . . .

5-17

8. Line Related Sidebands . . . . . . . . . . . . .

5-18

9. Residual FM . . . . . . . . . . . . . . . . . . .

5-19

10. RF Gain Uncertainty . . . . . . . . . . . . . .

5-20

11. Sweep Time Accuracy . . . . . . . . . . . . . .

5-21

12. Average Noise Level . . . . . . . . . . . . . .

5-22

13. Residual Responses . . . . . . . . . . . . . . .

5-23

14. Frequency Span Accuracy . . . . . . . . . . . .

5-24

15. Frequency Response . . . . . . . . . . . . . .

5-25

16. Second Harmonic Distortion . . . . . . . . . . .

5-26

17. Third Order Intermodulation Distortion . . . . .

5-27

18. Calibrator Output Amplitude Accuracy . . . . . .

5-28

Figures

l-l. HP 8568B with Accessories Supplied . . . . . . . . .

1-2. AC Power Cables Available . . . . . . . . . . . . .

l-3. Typical Serial Number Label . . . . . . . . . . . .

1-4. Static-Safe Workstation . . . . . . . . . . . . . . .

1-5. Display Bezel Screws . . . . . . . . . . . . . . . .

l-6. Removing the Bottom Cover . . . . . . . . . . . .

1-7. Location of Al5 Controller Assembly

. . . . . . . .

l-8. Location of Battery on Al5 Controller Assembly

. . .

1-9. Factory Packaging Materials for Each Section . . . . .

2-l. Rear-Panel Cable Connections . . . . . . . . . . . .

2-2. Voltage Selector Board and Fuse . . . . . . . . . . .

2-3. Removing the Handles and Trim . . . . . . . . . . .

2-4. Removing the Information-Card Tray . . . . . . . .

2-5. Attach the Rack Mount Flanges . . . . . . . . . . .

2-6. Voltage Selector Board and Fuse . . . . . . . . . . .

2-7. Rear-Panel Cable Connections . . . . . . . . . . . .

2-8. Removing the Handles and Trim . . . . . . . . . . .

2-9. Removing the Information-Card Tray

. . . . . . . .

2-10. Attaching the Rack Handles and Flanges . . . . . . .

2-l 1. Rear-Panel Cable Connections . . . . . . . . . . . .

2-12. Voltage Selector Board and Fuse . . . . . . . . . . .

2-13. Attaching the Inner-Member Brackets . . . . . . . .

2-14. Slide Adapter for Non-HP System Rack Cabinets . . .

2-15. Removing the Bottom Cover . . . . . . . . . . . .

2-16. Location of Al5 Controller Assembly

. . . . . . . .

2-17. Address Switch (Shown in Factory Preset Position) . .

2-18. Address Switch Set to 4 . . . . . . . . . . . . . . .

3-l. Instrument Dimensions with Handles

. . . . . . . .

3-2. Instrument Dimensions without Handles . . . . . . .

4-l. Typical Spectrum Analyzer Resolution . . . . . . . .

4-2. Single Sideband Noise Normalized to 1 Hz BW versus

Offset from Carrier . . . . . . . . . . . . . . .

4-3. Typical Sensitivity vs. Input Frequency

. . . . . . .

4-4. Typical Optimum Dynamic Range . . . . . . . . . .

5-l. Dual Bus (MTS) System Connection . . . . . . . . .

5-2. Single Bus System Connection . . . . . . . . . . . .

5-3. RF Input and Calibration Controls . . . . . . . . . .

2-15

2-15

2-16

2-17

2-18

2-21

2-22

2-8

2-9

2-10

2-11

2-13

2-14

1-15

1-16 l-20

2-4

2-5

2-7

2-23

2-24

3-19

3-19

4-1 l-3 l-4 l-8 l-10

1-12 l-14

4-2

4-3

4-4

5-6

5-6

5-9

Contents.5

‘Ifibles

1- 1. Static-Safe Accessories . . . . . . . . .

l-2. Factory Packaging Materials . . . . . . .

l-3. Hewlett-Packard Sales and Service Offices

2-l. Decimal and Binary Address Codes . . .

5-l. Tests Performed . . . . . . . . . . . .

5-2. Tests Not Performed . . . . . . . . . .

5-3. Equipment Summary . . . . . . . . . .

5-4. HP-IB Addresses . . . . . . . . . . . .

......

l-11

. . . . . .

l-20

. . . . . .

l-23

. . . . . .

2 - 2 5

. . . . . .

5 - 3

. . . . . .

. . . . . .

. . . . . .

5 - 4

5 - 4

5 - 9

Contents-6

General Information

What You’ll Find in

This chapter introduces you to the HP 8568B spectrum analyzer

This Chapter

and its options and accessories. Refer to Chapter 2 for information on inspecting and installing the HP 8568B. Refer to Chapter 3 and

Chapter 4 for a complete listing of instrument specifications and characteristics. Refer to Chapter 5 for Operation Verification.

Introducing the HP 8568B . . . . . . . . . . . . . . . . . . . . . . . . . . . .

l-2

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

l-2

Accessories Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2

Accessories Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

l-5

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-6

Instruments Covered by This Manual . . . . . . . . . . . . . . . 1-7

SerialNumbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

l-7

Calibration Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-9

HP-IB Address Selection . . . . . . . . . . . . . . . . . . . . . . . . . . .

l-9

Bench Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-9

Electrostatic Discharge Information . . . . . . . . . . . . . . . . . . l-10

Static-Safe Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . .

l-11

Routine Maintenance

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-12

Cleaning the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-12

Cleaning the RF Section’s Fan Filter . . . . . . . . . . . . . . . 1-13

Replacing the RF Section’s Battery . . . . . . . . . . . . . . . . l-13

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1- 18

Direct Mail-Order System

. . . . . . . . . . . . . . . . . . . . . . . . .

1- 18

Direct Phone-Order System . . . . . . . . . . . . . . . . . . . . . . . l-18

Returning the Instrument for Service . . . . . . . . . . . . . . . . 1-19

ServiceTags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-19

Original Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-19

Other Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

l-2 1

Sales and Service Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-22

1

General Information 1-l

Introducing the

HP 8568B

The HP 8568B spectrum analyzer is capable of measuring signals from

-135 dBm to +30 dBm over a frequency range of 100 Hz to 1500

MHz. The HP 8568B is a complete, self-contained instrument that requires only an external ac power source for operation. A set of ac power cables, suitable for use in the country to which the instrument is originally shipped, are included with the instrument.

Safety

Accessories Supplied

Before installing or operating this instrument, you should familiarize yourself with the safety marking on the instrument and the safety instructions in the manuals. The instrument has been manufactured and tested in accordance with international safety standards.

However, to ensure safe operation of the instrument and personal safety of the user, the cautions and warnings in the manuals must be followed. Refer to the summary of the safety information located near the front of this manual.

Figure l-l illustrates the instrument with the supplied accessories. In accordance with international safety standards, both sections of this instrument are equipped with three-wire ac power cables. Various power cables are available to connect the HP 8568B to the types of

AC power outlets unique to specific geographic areas. See Figure l-2.

Cables appropriate for the area to which the instrument is originally shipped are included with the instrument.

1-2 General information

F R O N T V I E W

I F - D i s p l a y

S e c t i o n

R F

S e c t i o n

I F - D i s p l a y

S e c t i o n

R F S e c t i o n

R E A R V I E W

Figure l-l. HP 8568B with Accessories Supplied

Description HP Part Number

Type N (m) to BNC (f) connector 1250-0780

1ST LO OUT BNC termination

HP 11593A

BNC jumper cable (quantity: 2)

85660-60117

Bus interconnect cable (W31) 85662-60220

Coax interconnect cable (W30) 85662-60093

Line power cables (2 each) see Figure l-2

General Information 1-3

PLUG TYPE * *

250V

250V

Hy;A;T

NUMBER

PLUG

DESCRIPTION

8 1 2 0 - 1 3 5 1 S t r a i g h t * BS1363A

8 1 2 0 - 1 7 0 3 90’

CABLE

LENGTH a.4 (

I N C H E S

)

2 2 9 ( 9 0 )

2 2 9 ( 9 0 )

CABLE

COLOR

FOR USE

I N C O U N T R Y

M i n t G r a y

M i n t Gray

G r e a t Britoln,

C y p r u s .

N i g e r ia,

S i n g a p o r e ,

Z imbobwe

8 1 2 0 - 1 3 6 9

S t r a i g h t * NZSS198/ASC112 201 ( 7 9 )

8 1 2 0 - 0 6 9 6 9o”

2 2 1 ( 8 7 )

G r a y

Gray

A r g e n t i n a ,

Austrollo,

N e w Z e a l a n d ,

M a i n l a n d C h i n o

250V

8 1 2 0 - 1 6 8 9 S t r a i g h t * CEE7-Yl 1

8 1 2 0 - 1 6 9 2 90’

125V

250V

8 1 2 0 - 1 3 4 8 S t r a i g h t * NEMA5-15P

8 1 2 0 - 1 5 3 8 90’

8 1 2 0 - 1 3 7 8

8120-4753

S t r a i g h t * NEMA5- 15P

S t r a i g h t

8 1 2 0 - 1 5 2 1 90*

8 1 2 0 - 4 7 5 4 90’

8 1 2 0 - 5 1 8 2

Straight* NEMA5-15P

8 1 2 0 - 5 1 8 1 90°

2 0 1 ( 7 9 )

2 0 1 ( 7 9 )

2 0 3 ( 8 0 )

2 0 3 ( 8 0 )

2 0 3 ( 8 0 )

2 3 0 ( 9 0 )

2 0 3 ( 8 0 )

2 3 0 ( 9 0 )

2 0 0 ( 7 8 )

2 0 0 ( 7 8 )

M i n t G r a y

Mint G r a y

E a s t a n d W e s t

E u r o p e , centrcl

A f r i c a n R e p u b l i c

U n i t e d A r a b

Republ i c

( u n p o l a r i z e d i n many n a t i o n s )

B I ock

B l a c k

U n i t e d S t a t e s

C a n a d a ,

J a p a n ( 1 0 0 V o r

2 0 0 V ) , B r a z i l ,

Jade G r a y

J a d e G r a y

J a d e G r a y

C o l o m b i a , M e x i c o

P h i l i p p i n e s ,

Soudio A r a b i a ,

J a d e G r a y Taiwan

J a d e G r o y

J a d e G r a y

I s r a e l

* P o r t n u m b e r f o r p l u g i s i n d u s t r y i d e n t i f i e r f o r p l u g o n l y . N u m b e r s h o w n f o r c a b l e i s

H P P a r t N u m b e r f o r c o m p l e t e c a b l e , i n c l u d i n g p l u g

** E = Earth G r o u n d , L = L i n e ; N = N e u t r a l .

t

F O R M A T 8 0

Figure l-2. AC Power Cables Available

1-4 General Information

Accessories Available

A number of accessories are available from Hewlett-Packard to help you configure your HP 8568B for your specific needs.

Preamplifiers

Close-Field Probes

The HP 8447D preamplifier provides a minimum of 26 dB gain from 100 kHz to

1.3 GHz to enhance measurements of very low-level signals.

The HP 11940A and HP 11941A Close-Field

Probes are small, hand-held, electromagneticfield sensors. The probes can be used to make repeatable, absolute, magnetic-field measurements. When attached to a signal source, the probes can be used to generate a localized magnetic field for electromagnetic interference (EMI) susceptibility testing. The

HP 11941A is specified over a frequency range of 9 kHz to 30 MHz. The HP 11940A operates from 30 MHz to 1 GHz.

75 to 50 ohm

Minimum-Loss Pad

Microwave Limiters

The minimum-loss pad (dc - 2.0 GHz), HP part number 08566-60122, is a low-VSWR resistive matching device for making measurements in

75-ohm systems.

The HP 11867A Limiter protects the instrument input circuits from damage due to high power levels. It operates over a frequency range of dc to 1.8 GHz and is rated

10 W continuous and 100 W peak power.

The HP 11693A Limiter is similar to the

HP 11863A but has a frequency range of 0.4

to 12.4 GHz and is rated 1 W continuous and

75 W peak power.

Use HP 10833A/B/G/D HP-IB cables.

HP-IB Cable

Controllers

The HP 8568B is fully HP-IB programmable.

The preferred controllers are HP 9000

Series 300 computers. Consult your local

Hewlett-Packard service representative for other recommended controllers and available software.

HP 85650A Quasi-Peak The HP 85650A adds to the spectrum

Adapter analyzer the resolution bandwidth filters and quasi-peak detection capability specified by

CISPR. Together the quasi-peak adapter and the spectrum analyzer provide many of the elements needed for an EM1 receiver system.

General Information l-5

HP 85685A RF

Preselector

The HP 85685A RF Preselector can be used with an HP 8568B to form a multi-purpose RF test receiver. It improves spectrum analyzer measurement sensitivity while providing overload protection from out-of-band signals.

This enables low-level signals to be monitored in the presence of high-level ambients. Its frequency range is 20 Hz to 2 GHz.

Troubleshooting and Service information for the HP 8568B is

Repair Manual available in the

HP 85680B Troubleshooting

and &pair Manual and the HP 85662A

Troubleshooting and &pair Manual.

They include schematic diagrams, block diagrams, component location illustrations, circuit descriptions, repair procedures, and troubleshooting information.

Service Kits A service kit is available containing troubleshooting and alignment accessories for the HP 8568B. The kit includes a test cable and extender boards. Order the kit as

HP part number 08568-60001. A combined kit, HP part number 08566-60005 is available containing accessories for both the HP 8566B and HP 8568B instruments.

Options

Several options are available and can be ordered by option number when you order the instrument. Some of the options are also available as kits that can be ordered and installed after you have received your HP 8568B.

Option 001

Option 010

Option 080

Option 081

Option 400

Option 462

75 ohm (BNC) RF input.

Rack Mount Slide kit. This option supplies the necessary hardware and installation instructions for mounting an instrument on slides into a rack of 482.6

mm (19 inch) spacing. The heavy-duty slides are designed specifically to support the weight of the

HP 8568B. Because of the weight of the HP 8568B, approximately 50 kg (112 lbs), the use of this option is recommended. Option 010 is also available as a kit

(HP part number 5062-6407).

Information Cards in Japanese.

Information Cards in French.

The standard HP 8568B requires that the power line frequency be 50 or 60 Hz. Option 400 allows the instrument to operate with a 400 Hz power line frequency.

This option provides 6 dB bandwidths for making

MIL-STD EM1 measurements. In addition to enhancing instrument capability for MIL-STD

461D and 462D EM1 measurements, Option 462 spectrum analyzers can still make all commercial

1-6 General Information

Option 857

Option 908

Option 910

Option 913

Option 915

EM1 and general-purpose measurements. Option

462 instruments with HP 85662A (top box) serial prefixes below 3341A were compatable with MIL-STD

462A/B/C (impulse bandwidth).

The HP 8568B Option 857 is used in EMC receiver applications. This option provides the cumulative log fidelity and absolute amplitude performance necessary for EMC receivers to meet their system specs.

Rack Mount Flange kit (to mount without handles).

This option supplies the necessary hardware and installation instructions for mounting an instrument in a rack of 482.6 mm (19 inch) spacing. Option 908 is also available as a kit (HP part number 5062-3986).

Extra

HP 8568B Operating and Programming

Manual and an extra HP 8568B &formunce lksts

and Adjustments Manual.

Rack Mount Flanges with Handles (handles provided).

This option supplies the necessary hardware and installation instructions for mounting an instrument with handles in a rack of 482.6 mm (19 inch) spacing.

Option 913 is also available as a kit (HP part number

5062-3986).

This option supplies the HP 8568B troubleshooting and repair manuals.

Instruments Covered

This manual contains information for setup and verification of

by This Manual

operation of HP 8568B spectrum analyzers, including those with

Option 001 (75 Ohm RF INPUT), Option 400 (400 Hz operation),

Option 462 (6 dB bandwidths or impulse bandwidths), or Option 857 installed. The procedures in this manual can also be used to setup and verify the operation of HP 8568A spectrum analyzers that have been converted into HP 8568B spectrum analyzers through the installation of an HP 8568AB Retrofit kit (formerly the HP 8568A+OlK Retrofit

Kit).

Serial Numbers

Hewlett-Packard makes frequent improvements to its products to enhance their performance, usability, or reliability. HP service personnel have access to complete records of design changes to each type of equipment, based on the equipment’s serial number.

Whenever you contact HP about your instrument, have the complete serial number available to ensure obtaining the most complete and accurate information possible.

A serial number label is attached to the rear of each instrument section. The serial number has two parts: the prefix (the first four numbers and a letter), and the suffix (the last five numbers). See

Figure 1-3.

The first four numbers of the prefix are a code identifying the date of the last major design change incorporated in your instrument.

General Information l-7

l-8 General Information

The letter identifies the country in which the instrument was manufactured. The five-digit suffix is a sequential number and is different for each instrument. Whenever you list the serial number or refer to it in obtaining information about your instrument section, be sure to use the complete number, including the full prefix and the suffix.

ER 2730A00427

P R E F I X

C O U N T R Y O F O R I G I N

S U F F I X

Figure 1-3. Typical Serial Number Label

Calibration Cycle

To ensure that the HP 8568B meets the specifications listed in Chapter

3, the operation verification listed in Chapter 5 should be performed every 6 months.

HP-IB Address

The instrument is shipped with the HP-IB address preset to 18 (ASCII

Selection

2R). The instrument stores this address in internal RAM memory which is maintained by a lithium battery in STANDBY and when line power is removed. This stored address can be changed from the front panel or on switches located on the RF section’s Al5 controller assembly. Refer to Chapter 2, “Installation.”

Bench Operation

The instrument has plastic feet and foldaway tilt stands for convenience in bench operation. The plastic feet are shaped to make full-width modular instruments self-aligning when stacked. The instrument is shipped with front handles attached for ease of moving.

General Information l-9

Electrostatic

Discharge

Information

Electrostatic discharge (ESD) can damage or destroy electronic components. Therefore, observe the following precautions: n

Be sure that all instruments are properly earth-grounded to prevent buildup of static charge.

n

Before connecting any coaxial cable to an instrument connector for the first time each day,

momentarily short the center and outer conductors of the cable together.

n

Personnel should be grounded with a resistor-isolated wrist strap before touching the center pin of any connector and before removing any assembly from the instrument.

n

When replacing the instrument’s battery (refer to Replacing the RF

Section Battery in this chapter), be sure to observe the following: q

Perform the work at a static-safe workstation. See Figure l-4.

q

Store or transport PC boards only in static-shielding containers.

q

Always handle board assemblies by the edges. Do not touch the edge-connector contacts or trace surfaces with bare hands.

Figure l-4 shows an example of a static-safe workstation. Two types of ESD protection are shown: a) conductive table mat and wrist strap combination, and b) conductive floor mat and heel strap combination.

The two types

must be used together to ensure adequate ESD protection. Refer to nble l-l for a list of static-safe accessories and their part numbers.

B u i l d i n g

G r o u n d

W r i s t S t r n d

I

F O R M A T 4 6

l-10 General Information

Figure l-4. Static-Safe Workstation

Static-Safe

Accessories

HP Fart

Number able l-l. Static-Safe Accessories

Description

Order the following through any Hewlett-Packard Sales and Service

Office

9300-0797 Set includes: 3M static control mat 0.6 m x 1.2 m (2 ft x 4 ft) and 4.6 cm (15 ft) ground wire. (The wrist-strap and wrist-strap cord are not included. They must be ordered separately.)

9300-0980 Wrist-strap cord 1.5 m (5 ft)

9300-1383 Wrist-strap, color black, stainless steel, without cord, has four adjustable links and a 7 mm post-type connection.

9300-1169 ESD heel-strap (reusable 6 to 12 months).

General Information l-l 1

Routine

Maintenance

Cleaning the Display

The inside surface of the glass CRT shield is coated with a thin metallic film that can be easily damaged. To clean the glass CRT shield, use thin-film cleaner (HP part number 8500-2163) and a lint-free cloth. To clean the inside surface of the display glass, remove the glass CRT shield using the following procedure:

1. Disconnect the ac line power from the instrument sections.

2. Remove the two screws securing the display bezel and CRT glass shield to the front panel. These screws are located on the bottom edge of the bezel. See Figure l-5.

Caution

While removing the two bezel screws, use caution to prevent the glass from falling.

3. Remove the bezel and CRT glass shield.

1-12 General Information

B e z e l S c r e w s

Figure l-5. Display Bezel Screws

4. Clean the glass using the thin-film cleaner and a lint-free cloth.

5. Replace the glass shield. Place the side of the glass that has the silver edge towards the CRT.

6. Replace the bezel and two screws.

Cleaning the RF

The fan on the RF section has a air filter that should be regularly

Section’s Fan Filter

inspected and cleaned. To clean the air filter perform the following:

1. Disconnect the ac line power from the RF section.

2. Remove the four screws securing the filter cover to the fan on the

RF section. Remove the filter.

3. Clean the filter using a mild soap and water. Dry the filter thoroughly. If damaged, replace with a new filter (HP part number

85660-00049).

4. Replace the filter and its cover.

Replacing the RF

The RF section’s Al5 controller assembly has a battery for

Section’s Battery

maintaining internal RAM memory. This memory is primarily used for storing instrument states, error correction data, and

DLPs (downloadable programs). Under normal conditions, the battery should typically last a minimum of three years. Use the following procedure to replace the battery. Refer to the

HP 8568OB

Troubleshooting and Repair Manual for the HP part number.

Warning

Battery BTl contains lithium iodide. Do not incinerate, puncture, or attempt to recharge this battery. Dispose of discharged battery in a safe manner.

Warning

Changing the battery BTl on the Al5 controller assembly requires the removal of the RF section’s protective bottom cover.

This should be performed only by a qualified service person.

Refer all such servicing of the instrument to qualified service persons.

Caution

ESD (Electrostatic Discharge) can damage or destroy electronic components. Work at a static-safe workstation when replacing the battery.

1. Place the HP 8568B on a static-safe workstation. Refer to

“Electrostatic Discharge Information” in this chapter.

2. Disconnect the ac line power from the instrument sections. Place the HP 8568B upside down on the work surface so that the bottom of the RF section is facing up.

General Information l-13

l-14 General Information

3. Using a screw driver, remove the two bottom RF section rear panel bumpers. See callouts 1 in Figure l-6.

T O P D O W N

Figure 1-6. Removing the Bottom Cover

4. Back out screw 2 (Figure l-6) causing the cover to unseat from the front frame. When the cover is clear of the front frame, lift the cover up to remove it.

5. Remove the cover from the Al5 controller assembly. See

Figure l-7.

A l 5

C O N T R O L L E R

A S S E M B L Y

Figure l-7. Location of Al5 Controller Assembly

General Information 1-15

6. Remove the Al5 controller assembly. Locate the battery on the

Al5 assembly. Figure l-8 shows the location of the battery.

B a t t e r y (A15BTl)

1-16 General Information

Figure 1-8. Location of Battery on Al5 Controller Assembly

7. Replace the battery with a new one (HP part number 1420-0331).

Be sure to install the battery with the polarity shown in

Figure l-8.

8. Replace the Al5 controller assembly.

9. Reconnect the power cables to the IF and RF sections.

10. Connect a jumper wire between the Al5 controller test points

A15TPl-8 T3 and A15TPl-9 ST (to erase and initialize Al5 controller nonvolitile memory).

11. Set the LINE switch to ON. The Al5 controller LED’s A15DSl through A15DS14 should all turn on, then turn off, sequentially, indicating the Al5 controller has sucessfully executed self-test. If they do not, the Al5 controller might be damaged or improperly installed. In addition, all front panel LED’s should turn on momentarily, indicating the HP 8566B has performed its power-on pretest.

In addition to normal HP 8568B power-up HP-IB address and firmware revision information, a BATTERY flag should appear on the CRT, indicating that information previously stored in the Al5 controller nonvolitile memory has been lost or erased. Normally the BATTERY flag appears after several years of use to indicate that the lithium battery A15BTl needs to be replaced.

12. Remove the jumper wire between A15TPl-8 T3 and A15TPl-9 ST.

13. Set the LINE switch to STANDBY and then to ON. The HP 8568B should power up normally, without any flags displayed on the

CRT.

14. Set the LINE switch to STANDBY and remove the power cable from the rear of the RF section.

15. Install the controller cover,

16. Replace the RF section bottom cover and the two rear feet.

17. Place the HP 8568B top side up and reconnect the power cable to the RF section.

18. Set the LINE switch to ON and allow a 2-hour warm-up.

19. Recalibrate the instrument with the following steps. (For a more complete description of the calibration, refer to the

HP 8568B

Operating

and Programming Manual.)

a. Connect the front-panel CAL OUTPUT signal to the SIGNAL

INPUT 2.

b. Press [RECALL) 8, and then adjust the front-panel AMPTD CAL adjust for a marker amplitude of -10.00 dBm.

c. Press cm] 9, and then adjust the front-panel FREQ ZERO adjust for maximum signal amplitude.

d. Press

@iiF] [

FREQUENCY SPAN

] w to load the error correction data in the instrument’s memory.

General Information l-17

Ordering

Information

Parts can be ordered from any Hewlett-Packard Sales and Service

Office. Refer to Table 1-3 for a listing of sales and service offices. To order a part or assembly, quote the Hewlett-Packard part number, indicate the quantity required, and address the order to the nearest

Hewlett-Packard Office.

To order a part that is not listed in the replaceable parts table, include the instrument model number, the description and function of the part, and the number of parts required. Address the order to the nearest Hewlett-Packard Sales and Service Office.

Direct Mail Order

Within the USA, Hewlett-Packard can supply parts through a direct

System

mail order system. Advantages of using the system are as follows: w Direct ordering and shipment from the HP Support Materials

Organization in Roseville, California.

n

No maximum or minimum on any mail order. (There is a minimum order amount for parts ordered through a local Hewlett-Packard

Sales and Service Office when the orders require billing and invoicing.) n

Prepaid transportation. (There is a small handling charge for each order.)

I No invoices.

To provide these advantages, a check or money order must accompany each order. Mail-order forms and specific ordering information is available through your local Hewlett-Packard Sales and Service Office.

Direct Phone-Order

Within the USA, a phone order system is available for regular and

System

hotline replacement parts service. A toll-free phone number is available, and Mastercard and Visa are accepted.

Regular Orders: The toll-free phone number, (800) 227-8164, is available 6 AM to 5 PM, Pacific time, Monday through Friday. Regular orders have a 4 day delivery time.

Hotline Orders: Hotline service for ordering emergency parts is available 24 hours a day, 365 days a year. There is an additional hotline charge to cover the cost of freight and special handling.

The toll-free phone number, (800) 227-8164, is available 6 AM to 5 PM,

Pacific time, Monday through Friday and (916) 785-8HOT is available after-hours, weekends, and holidays. Hotline orders are normally delivered the following business day.

1-16 General Information

Returning the

Instrument for

Service

The instrument may be shipped in environments within the following limits:

Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 “C to + 75 “C

Humidity . . . . . . . . . . . . . . . . . . . . . 5% to 90% at 0 “C to 40 “C

Altitude . . . . . . . . . . . . . . . . Up to 15,240 meters (50,000 feet)

The instrument should be protected from temperature extremes which may cause condensation within the instrument.

Service lhgs

If you are returning the instrument to Hewlett-Packard for servicing, fill in and attach a blue service tag to each instrument section.

(Service tags are supplied at the end of this chapter.)

Please be as specific as possible about the nature of the problem. If you have recorded any error messages that appeared on the screen or have any other specific data on the performance of the instrument, please send a copy of this information with the instrument.

Original Packaging

Note

To protect the front panel, the front handles must be attached to each instrument section before shipping.

It is recommended that the original factory packaging materials be retained for use when shipping the instrument. Because of the combined weight of the two instrument sections is approximately 50 kg (112 lbs), do not package the instrument sections fastened together as one unit. The instrument sections must be separated and packaged in separate containers. Pack each section in the original factory packaging materials if they are available. See Figure 1-9. Refer to

Table l-2 for the part numbers of items listed in the figure. Original materials are available through any Hewlett-Packard office.

General Information l-19

l-20 General Information

( 2 P L A C E S ) m o u n t e d f o r s h i p m e n t .

Figure l-9. Factory Packaging Materials for Each Section

‘Ihble 1-2. F&tory Packaging Materials

Item Description Qty HP Part Number

1 Outer Box 1 921l-4487

I I

1 5180-2320

I I

1 3 /Inner F o a m P a d 1 2 15180-2319

I

Other Packaging

Caution

Instrument damage can result from using packaging materials other than those specified. Never use styrene pellets as packaging materials.

They do not adequately cushion the instrument or prevent it from shifting in the carton. They cause instrument damage by generating static electricity.

Note

To protect the front panel, the front handles should be attached to each instrument section before shipping.

You can repackage the instrument with commercially available materials, as follows:

1. Separate the two instrument sections.

2. Attach a completed service tag to each of the sections.

3. Wrap each section in antistatic plastic to reduce the possibility of damage caused by electrostatic discharge.

4. Use a strong shipping container. A double-walled, corrugated cardboard carton of 159-kg (350~lb) bursting strength is adequate. The carton must be large enough and strong enough to accommodate the instrument. Allow at least 3 to 4 inches on all sides of the instrument for packing material.

5. Surround the instrument with 3 to 4 inches of packing material, to protect the instrument and prevent it from moving in the carton.

If packing foam is not available, the best alternative is S.D.-240 Air

Cap from Sealed Air Corporation (Hayward, California 94545). Air

Cap looks like a plastic sheet filled with l-l/4 inch air bubbles. Use the pink (antistatic) Air Cap to reduce static electricity. Wrapping the instrument section several times in this material should both protect the instrument section and prevent it from moving in the carton.

6. Seal the carton with strong nylon adhesive tape.

7. Mark the carton

FRAGILE, HANDLE WITH CARE.

8. Retain copies of all shipping papers.

General Information 1-21

Sales and Service

Offices

Hewlett-Packard Sales and Service Offices provide worldwide support for Hewlett-Packard products. To obtain servicing information or to order replacement parts, contact the nearest Hewlett-Packard Sales and Service Office listed in Able l-3. In any correspondence, always provide essential information, which includes model numbers, serial numbers, or assembly part numbers.

1-22 General Information

‘Ihble 1-3. Hewlett-Packard Sales and Service Offices

US FIELD OPERATIONS

HEADQUARTERS

Hewlett-Packard Company

19320 Pruneridge Avenue

Cupertino, CA 95014, USA

(800) 752-0900

California

Hewlett-Packard Co.

1421 South Manhattan Ave.

Fullerton, CA 92631

(714) 999-6700

Hewlett-Packard Co.

301 E. Evelyn

Mountain View, CA 94041

(415) 694-2000

Colorado

Hewlett-Packard Co.

24 Inverness Place, East

Englewood, CO 80112

(303) 649-5000

Georgia

Hewlett-Packard Co.

2000 South Park Place

Atlanta, GA 30339

[404) 955- 1500

Illinois

Hewlett-Packard Co.

5201 Tollview Drive

Rolling Meadows, IL 60008

1708) 255-9800

EUROPEAN OPERATIONS

HEADQUARTERS

Hewlett-Packard S.A.

150, Route du Nant-d’Avri1

12 17 Meyrin 2/Geneva

Switzerland

(41 22) 780.8111

INTERCON OPERATIONS

HEADQUARTERS

Hewlett-Packard Company

3495 Deer Creek Rd.

Palo Alto, California 94304-1316

(415) 857-5027

France

Hewlett-Packard France

1 Avenue Du Canada

Zone D’Activite De Courtaboeuf

F-91947 Les Ulis Cedex

France

(33 1) 69 82 60 60

Australia

Hewlett-Packard Australia Ltd.

31-41 Joseph Street

Blackburn, Victoria 3130

(61 3) 895-2895

Germany

Hewlett-Packard GmbH

Hewlett-Packard Strasse

6380 Bad Homburg v.d.H

Germany

(49 6172) 16-O

Canada

Hewlett-Packard (Canada) Ltd.

17500 South Service Road

Trans-Canada Highway

Kirkland, Quebec H9J 2X8

Canada

(514) 697-4232

Great Britain

Hewlett-Packard Ltd.

Eskdale Road, Winnersh Triangle

Wokingham, Berkshire RGl 1 5DZ

England

(44 734) 696622

Japan

Yokogawa-Hewlett-Packard Ltd.

1-27-15 Yabe, Sagamihara

Kanagawa 229, Japan

(81 427) 59-1311

China

China Hewlett-Packard, Co.

38 Bei San Huan Xl Road

Shuang Yu Shu

Hai Dian District

Beijing, China

(86 1) 256-6888

New

Jersey

Hewlett-Packard Co.

150 Green Pond Road

Rockaway, NJ 07866

1201) 627-6400

Singapore

Hewlett-Packard Singapore

Pte. Ltd.

1150 Depot Road

Singapore 0410

(65) 273 7388

Ikxas

Hewlett-Packard Co.

330 E. Campbell Rd.

Richardson, TX 75081

:214) 231-6101

Wwan

Hewlett-Packard l%iwan

8th Floor, H-P Building

337 Fu Hsing North Road nipei, Taiwan

(886 2) 712-0404

General Information 1-23

Installation

What You’ll Find in

This chapter describes the process of getting the HP 8568B spectrum

This Chapter

analyzer ready to use. The process includes initial inspection and installing the unit. Before installing the HP 8568B, be sure to read all the warnings, cautions, and notes listed in “Safety” below.

1 If you are not installing the instrument in a rack, refer to “To Install

Standard Instruments” in this chapter.

n

To install Option 908 or 913 instruments, refer to “To Install Option

908 and 913 Instruments” in this chapter.

n

To install Option 010 instruments, refer to “To Install Option 010

Instruments” in this chapter.

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-l

Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3

Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3

Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3

To Install Standard Instruments . . . . . . . . . . . . . . . . . . . . . . . 2-4

To Install Option 908 and 913 Instruments . . . . . . . . . . . . . 2-7

To Install Option 010 Instruments . . . . . . . . . . . . . . . . . . . . 2-13

To Set the HP-IB Address . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-20

From the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-20

From the HP-IB Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-20

From the HP-IB Address Switch . . . . . . . . . . . . . . . . . . . 2-20

2

Safety

Before installing or operating this instrument, you should familiarize yourself with the safety marking on the instrument and the safety instructions in the manuals. The instrument has been manufactured and tested in accordance with international safety standards.

However, to ensure safe operation of the instrument and personal safety of the user, the cautions and warnings in the manuals must be followed. Refer to the summary of the safety information located near the front of this manual.

Installation 2-l

2.2 Installation

Warning

Warning

Warning

Caution

F’ailure to ground the instrument properly can result in personal injury. Before turning on the HP 8568B, you must connect its protective earth terminals to the protective conductor of the main power cable. Insert the main power cable plug only into a socket outlet that has a protective earth contact. DO NOT defeat the earth-grounding protection by using an extension cable, power cable, or autotransformer without a protective ground conductor. If you are using an autotransformer, make sure its common terminal is connected to the protective earth contact of the power source outlet socket.

Power is still applied to this instrument with the m switch in STANDBY. There is no Off position for the m switch. lb remove power from the instrument, it is necessary to remove the power cable from the rear of each instrument section.

Because the combined weight of the instrument sections is approximately 112 pounds, use appropriate caution when moving or installing.

Before switching on this instrument, make sure it is adapted to the voltage of the ac power source as described in the following procedures. Failure to set the ac power input to the correct voltage could cause damage to the instrument when the ac power cable is plugged in.

Preparation for

Use

Initial Inspection

Inspect the shipping container for damage. If the shipping container or cushioning material is damaged, keep it until you have verified that the contents are complete and you have tested the instrument mechanically and electrically.

Contents of the shipment are shown in Figure l-l. If the contents are incomplete or if the instrument does not pass the operation verification tests (procedures are provided in Chapter 5), notify the nearest Hewlett-Packard office. If the shipping container is damaged or the cushioning material shows signs of stress, also notify the carrier. Keep the shipping materials for the carrier’s inspection. The

HP office will arrange for repair or replacement without waiting for a claim settlement.

If the shipping container and cushioning material are in good condition, retain them for possible future use. You may wish to ship the instrument to another location or to return it to Hewlett-Packard for service. Chapter 1, “General Information, ” provides instructions for repackaging and shipping the instrument.

Operating

Environment

The instrument may be operated in environments within the following limits:

Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 “C to +55 “C

Humidity . . . . . . . . . . . . . . . . . . . . . 5% to 90% at 0 “C to 40 “C

Altitude . . . . . . . . . . . . . . . . . . up to 4,572 meters (15,000 feet)

The instrument should be protected from temperature extremes which might cause condensation within the instrument.

Power Requirements

The HP 8568B requires a power source of 100, 120, 220, or 240 Vat

+ 5% -lo%, 50-60 Hz. Power consumption for the instrument sections combined is less than 650 VA.

Installation 2-3

To Install Standard

1. Place the RF section right-side up on a level work surface.

Instruments

2. Place the IF-Display section on top of the RF section, offset far enough forward to allow the RF section hooks to engage the

IF-Display section frame when slid back. Slide the IF-Display section back until the RF section hooks catch the bottom of the

IF-Display section.

3. Line up the rear-panel lock feet, and tighten the thumb screws on both lock feet.

4. Connect cable W31 between IF-Display section 52 and RF section

J6. See Figure 2-l.

5. Connect cable W30 between IF-Display section Jl and RF section

J l .

w30 w31 w 3 7 W38

32

Jl J4 J 5

Figure 2- 1. Rear-Panel Cable Connections

6. Determine the ac line voltage to be used.

7. On each instrument section, slide open the power module’s fuse cover (located on the rear panel). See Figure 2-2. Push the fuse-pull lever to the left. Remove the fuse.

2-4 Installation

L i n e V o l t a g e S e t t i n g C a r d F u s e

Figure 2-2. Voltage Selector Board and Fuse

8. On each power-line module, check the voltage selector card for the proper ac line voltage. The card’s voltage setting should be visible on the card. See Figure 2-2. If you need to select a different ac line voltage setting, perform the following: a. Use needle-nose pliers to pull out the voltage-selector card.

Rotate the card so that the voltage label corresponding to the actual line voltage will appear in the module window.

b. Push the card back into its slot.

Installation 2-5

2-6 Installation

Note

9. Check the fuse to make sure it is of the correct rating and type for the ac line voltage selected. Fuse ratings for different line voltages are indicated in the following table.

ac Line Voltage

100/120

220/240

IF-Display Section

2 amperes FAST BLO

RF Section

2 amperes FAST BLO

HP nart number 2110-0002 HP Dart number 2110-0002

1

1 ampere SLOW BLO 1 amperes SLOW BLO

HP part number 2110-0007 HP part number 2110-0007

10. Insert the correct fuse, and push the fuse-pull lever into its normal right-hand position.

11. Connect the ac line power cords.

12. If the HP 8568B will be remotely controlled, refer to “To Set the

HP-IB Address” in this chapter.

13. When you turn your instrument on for the first time, you should perform the verification tests in Chapter 5. Refer to the

HP8568B

Operation and Programming Manual for instructions on using the instrument.

Cables W37 and W38 are removed for connection of the IF and VIDEO ports to the HP 85650A Quasi-Peak adapter. If the instrument is used without the HP 85650A Quasi-Peak adapter, W37 and W38 must be connected for the instrument to operate.

To Install Option

908 and 913

Instruments

Option 908 contain the necessary hardware to mount the HP 8568B without handles in a rack of 482.6 mm (19 in) spacing. Option 913 mounts the HP 8568B with handles.

1. Remove the front-handle trim from each side of the RF and

IF-Display sections. See callout 1 in Figure 2-3.

Figure 2-3. Removing the Handles and Trim

2. Remove the three screws securing each handle, and remove the handles. See callouts 2 and 3 in Figure 2-3.

Installation 2-7

2-6 Installation

3. The information-card tray located on the bottom of the

RF-Display section requires a space of approximately 2 cm below the instrument when rack mounting. See callout 1 in

Figure 2-4. (No filler strip is provided.) If you wish to remove the information-card tray, remove the feet and tilt stands. See callouts 2 and 3 in Figure 2-4.

Figure 2-4. Removing the Information-Card Tray

4. On each instrument section, attach the rack mount flange (and front handles for Option 913) using the three M4x0.7~16 pan-head screws provided in the kit. See Figure 2-5.

R A C K M O U N T

Figure 2-5. Attach the Rack Mount Flanges

5. Determine the ac line voltage to be used.

Installation 2-9

Note

6. On each instrument section, slide open the power module’s fuse door (located on the rear panel). See Figure 2-6. Push the fuse-pull lever to the left. Remove the fuse.

Although Figure 2-6 shows the two instrument sections connected together, they will be mounted separately in the rack.

2-10 Installation

Figure 2-6. Voltage Selector Board and Fuse

7. On each power-line module, check the voltage selector card for the proper ac line voltage. The card’s voltage setting should be visible on the card. See Figure 2-6. If you need to select a different ac line voltage setting, perform the following: a. Use needle-nose pliers to pull out the voltage-selector card.

Rotate the card so that the voltage label corresponding to the actual line voltage will appear in the module window.

b. Push the card back into its slot.

8. Check the fuse to make sure it is of the correct rating and type for the ac line voltage selected. Fuse ratings for different line voltages are indicated in the following table.

ac Line Voltage IF-Display Section RF Section

HP part number 2110-0002 HP part number 2110-0002

HP part number 2 110-0007 HP part number 2 110-0007

9. Insert the correct fuse, and push the fuse-pull lever into its normal right-hand position.

10. Bolt each instrument section into the rack from its rack mount flange. Place the IF-Display section just above the RF section.

11. Connect cable W31 between IF-Display section 52 and RF section

J6. See Figure 2-7.

12. Connect cable W30 between IF-Display section Jl and RF section

Jl.

J2

Jl J4 J 5

Figure 2-7. Rear-Panel Cable Connections

Installation 2-l 1

2-12 Installation

13. Connect the ac line power cords.

14. If the HP 8568B will be remotely controlled, refer to “To Set the

HP-IB Address” in this chapter.

15. When you turn your instrument on for the first time, you should perform the verification tests in Chapter 5. Refer to the

HP8568B

Operation

and Programming Manual for instructions on using the instrument.

Cables W37 and W38 are removed for connection of the IF and VIDEO ports to the HP 85650A Quasi-Peak adapter. If the instrument is used without the HP 8565OA Quasi-Peak adapter, W37 and W38 must be connected for the instrument to operate.

To Install Option

010 Instruments

Option 010 mounts the HP 8568B on slides in a rack of 482.6 mm

(19 in) spacing. (Option 010 also contains adapters for mounting in non-HP racks.)

1. Remove the strap handle on the IF-Display section’s left side panel.

2. Remove the right-rear lock foot, and the right-rear top foot from the IF-Display section. Slide the right-side cover off to the rear.

Install the right-side cover included in the kit, and replace the rear feet.

3. Remove the front-handle trim from each side of the RF and

IF-Display sections. See callout 1 in Figure 2-8.

Figure 2-8. Removing the Handles and Trim

4. Remove the three screws securing each handle, and remove the handles. See callouts 2 and 3 in Figure 2-8.

Installation 2-13

5. The information-card tray located on the bottom of the

RF-Display section requires a space of approximately 2 cm below the instrument when rack mounting. See callout 1 in

Figure 2-9. (No filler strip is provided.) If you wish to remove the information-card tray, remove the feet and tilt stands. See callouts 2 and 3 in Figure 2-9.

2-14 Installation

I

Figure 2-9. Removing the Information-Card Tray

6. Place the RF section right side up on a level work surface.

7. Place the IF-Display section on top of the RF section, offset far enough forward to allow the RF section hooks to engage the

IF-Display section frame when slid back. Slide the IF-Display section back until the RF section hooks catch the bottom of the

IF-Display section.

8. Line up the rear-panel lock feet, and tighten the thumb screws on both lock feet.

9. Attach the 10-l/2 inch handles with flanges as shown in

Figure 2-10.

,

.,@

.,p

,..’

P

Figure 2-10. Attaching the Rack Handles and Flanges

10. Connect cable W31 between IF-Display section 52 and RF section

J6. See Figure 2-l 1.

11. Connect cable W30 between IF-Display section Jl and RF section

Jl.

w30 w31 w 3 7

W38

Jl J4 J 5

Figure 2-l 1. Rear-Panel Cable Connections

Installation 2-15

12. Determine the ac line voltage to be used.

13. On each instrument section, slide open the power module’s fuse door (located on the rear panel). See Figure 2-12. Push the fuse-pull lever to the left. Remove the fuse.

2-16 Installation

L i n e V o l t a g e S e t t i n g

C a r d Fuse

Figure 2-12. Voltage Selector Board and Fuse

14. On each power-line module, check the voltage selector card for the proper ac line voltage. The card’s voltage setting should be visible on the card. See Figure 2-11. If you need to select a different ac line voltage setting, perform the following: a. Use needle-nose pliers to pull out the voltage-selector card.

Rotate the card so that the voltage label corresponding to the actual line voltage will appear in the module window.

b. Push the card back into its slot.

15. Check the fuse to make sure it is of the correct rating and type for the ac line voltage selected. Fuse ratings for different line voltages are indicated in the following table.

ac Line Voltage

100/120

220/240

IF-Display Section

2 amperes FAST BLO

RF Section

2 amperes FAST BLO

HP part number 2110-0002 HP part number 2110-0002

1 ampere SLOW BLO 1 amperes SLOW BLO

HP part number 2110-0007 HP part number 2110-0007

16. Insert the correct fuse, and push the fuse-pull lever into its normal right-hand position.

17. Attach one slide inner-member bracket to each side of the instrument using two M5x0.8~10 pan-head screws per side. See callout in 1 of Figure 2-13.

Figure 2-13. Attaching the Inner-Member Brackets

18. Mounting in an HP System Rack Cabinet: a. Insert two Unistrut nuts, callout 2 in Figure 2-13, into each of the two vertical columns on the left side of the system cabinet.

Insert two Unistrut nuts into each of the two vertical columns on the right side of the system cabinet.

b. Bolt an outer slide mount to the Unistrut nuts in each side of the systems cabinet, using four M5x0.8~12 pan-head screws per side. See callout in 3 of Figure 2-13.

Installation 2-17

Note

c. Expand the outer slide mounts to their full length. Mount the instrument onto the system cabinet by bolting the outer slide mount to the inner-member bracket on the instrument, using three M5x0.8~12 flat-head screws per side.

If any binding is encountered in the slides after mounting, it will be necessary to slightly move the Unistrut nuts. While supporting the instrument, loosen one of the Unistrut nuts. Adjust the slides slightly until they operate freely. Retighten the Unistrut nut.

19. Mounting in a Non-HP System Rack Cabinet: a. Using hole pattern “B,” see Figure 2-14, attach one adapter bracket to the front of each outer slide mount, using two

M4x0.8~12 flat-head screws and nuts per bracket.

2-18 Installation

Figure 2-14. Slide Adapter for Non-HP System Rack Cabinets

Note

Note

b. Using hole pattern “B,” attach one adapter bracket to the rear of each outer slide mount, using two M5x0.8~12 pan-head screws and nuts per bracket.

c. Bolt an outer slide mount to each side of the system rack cabinet using M5x0.8~12 pan-head screws. Use the bar nuts provided in the kit if the rack mounting strips have through-holes.

If any binding is encountered in the slides after mounting, it will be necessary to slightly move the adapter brackets. While supporting the instrument, loosen one of the adapter brackets. Adjust the slides slightly until they operate freely. Retighten the adapter brackets.

20. Connect the ac line power cords.

21. If the HP 8568B will be remotely controlled, refer to “‘Ib Set the

HP-IB Address” in this chapter.

22. When you turn your instrument on for the first time, you should perform the verification tests in Chapter 5. Refer to the

HP 8568B

Operation and Programming

Manual

for instructions on using the instrument.

Cables W37 and W38 are removed for connection of the IF and VIDEO ports to the HP 85650A Quasi-Peak adapter. If the instrument is used without the HP 85650A Quasi-Peak adapter, W37 and W38 must be connected for the instrument to operate.

Installation 2-19

To Set the HP-IB

Address

The HP-IB address is used in remote programming to identify the instrument. The decimal address is preset at the factory to 18 (ASCII

2R). Addresses may be decimal 0 through 30. The HP-IB address can be changed manually from the instrument’s front panel, remotely via the HP-IB bus, or by setting the instrument’s internal address switch.

The internal address switch is comprised of five switches located on the Al5 controller assembly in the RF section. These switches

(A15SWl A2 - A6) determine the HP-IB address to be used at instrument “power-up.” These switches are preset at the factory to binary 11111 (decimal 31), which sets the instrument to the HP-IB address stored in RAM memory (or to the default value 18, if the contents of RAM memory are ever lost due to a battery failure, and so on). If the switches are set to a value other than 31, the instrument will always reset the HP-IB address to this value at power-up.

From the Front Panel

From the HP-IB Bus

To enter a new address from the front panel:

1. Press CSHIFT) (EELi] p.

2. Use the number keypad to enter the new decimal address.

3. Terminate the entry by pressing IHz). This changes the current

HP-IB address and stores the new address value in RAM memory.

To enter a new address via the HP-IB bus, refer to the KSP command in the

HP 8568B Operating and Programming Manual.

From the HP-IB

Address Switch

Warning

Changing the HP-IB address by resetting the address switch

on the Al5 Controller assembly requires the removal of the RF

section’s protective bottom cover. This should be performed

only by a qualified service person. Refer all such servicing of the

instrument to qualified service persons.

2-20 Installation

1. Disconnect the ac line cord from the RF section.

2. Using a screw driver, remove the two RF-section rear panel bumpers. See callout 1 in Figure 2-15.

T O P D O W N

Figure 2-15. Removing the Bottom Cover

3. Back out screw 2 (see Figure 2-15) and the cover unseats from the front frame. When the cover is clear of the rear frame, remove the cover by lifting up.

4. Remove the cover from the Al5 controller assembly. See

Figure 2-16 to locate the assembly.

Installation 2-21

A l 5 C O N T R O L L E R

ASSEMBLY

Locat i o n o f H P - I B

S w i t c h )

2-22 Installation

Figure 2-16. Location of Al5 Controller Assembly

5. Locate the address switch A15SWl as shown in Figure 2-16 and Figure 2-17. Change the switch’s setting according to the information given below.

The switch comprises six segments, Al through A6. Al must always be set to logic 1. Each of the remaining five segments, A2 through A6, corresponds to one of the digits of a 5-digit binary equivalent of the address. See Figure 2-17. The switch is preset at the factory to binary 11111 (decimal 31). This is a special code which commands the instrument to use the last input address

(stored in memory) either from the front panel or from HP-IB.

You can reset the switch to correspond to the binary equivalent of any desired decimal value indicated in Iable 2-l. For example, if the desired address is 4, the A15SWl would be set as shown in

Figure 2-18.

Note

Observe that although 2’ is the far-right digit in Table 2-1, 2’ is represented by the far-left segment of the address switch.

20 21 22 23 24

\A6 A5 A4 A3 A2, Al

u

= L o g i c 1

4

= L o g i c 0

Figure 2-17. Address Switch (Shown in Factory Preset Position)

Installation 2-23

2-24 Installation

1

= L o g i c 1

Q

= L o g i c 0

\A6 A5 A4 A3

v

H P - I B A D D R E S S

A2, A l ( A l w a y s s e t at l o g i c 1 )

Figure 2-18. Address Switch Set to 4

6. Replace the cover on the Al5 controller assembly.

7. Replace the RF section’s bottom cover.

‘Ihble 2-l. Decimal and Binary Address Codes

Decimal Value S-Bit Binary Equivalen

0

00000

1

00001

2

00010

3

4

5

6

7

00011

00100

00101

00110

8

9

00111

01000

01001

10

11

12

01010

01011

01100

13

14

15

16

17

18

01101

01110

01111

10000

10001

10010

10011

10100

23

24

25

26

19

20

21

22

27

28

29

30

10101

10110

10111

11000

11001

11010

11011

11100

11101

11110

Installation 2-25

Specifications

Introduction

Unless noted, all specifications are for AUTOCOUPLED FUNCTION operation. Where specifications are subject to minimization with the error-correction routine, corrected limits are given unless noted.

Nominal values provide useful, but nonwarranted, information about functional performance.

3

Frequency

Measurement Range

100 Hz to 1500 MHz through two RF inputs: 100 Hz to 1500 MHz dc coupled, and 100 kHz to 1500 MHz ac coupled.

Displayed Values

Frequency Reference Error and Accuracy

Accuracy

Aging rate

<I x 10hg/day and ~2.5 x 10F7/year

Temperature stability ~7 x 10eg over 0 “C to 55 “C range (25 “C reference)

Note

The term

frequency reference error, when used later in this manual, is defined as: f [aging rate/day x number of days since calibration + temperature stability].

Note

When the analyzer is in STANDBY, the frequency reference temperature is maintained at a steady state. For more information, see “Warm-Up Time” under “General” in this chapter.

Note

Changes in line voltage, gravitational field, and other environmental conditions will affect the frequency reference accuracy.

Center Frequency

Range

0 Hz to 1500 MHz

Specifications 3-1

Readout Accuracy

Span 2100 Hz

*(2% of frequency span + frequency reference error x tune frequency + 10 Hz) in AUTO resolution bandwidth after adjusting

FREQ ZERO at stabilized temperature, and using the error-correction function,

[SHIFT] [

FREQUENCY SPAN

]

(KSW). Add 30% of the resolution bandwidth setting if error correction is not used.

Zero Frequency Span

Resolution

Bandwidth

10 Hz to 300 Hz

1 kHz to 3 kHz

10 kHz to 3 MHz

Accuracy

Frequency Reference Error x

Tune Frequency +

10 Hz

100 Hz

1 kHz

Readout

Resolution

1 Hz

10 Hz

100 Hz

Frequency Span

Range

0 Hz and 100 Hz to 1500 MHz over lo-division CRT horizontal axis; variable in approximately 1% increments. Step keys change span in a

1, 2, 5 sequence.

Full Span

0 to 1500 MHz is immediately executed with the (j-1 or

&NSTR

P R E S E T

] keys.

Frequency Span Readout Accuracy

Accuracy

Range

Readout Accuracy

Spans 21 MHz

100 Hz to 1500 MHz f5% of the actual frequency separation between two points + 0.5% span

Spans >l MHz f2% of the actual frequency separation between two points + 0.5% span

Start or Stop

Center frequency readout accuracy + l/2

Frequency Readout frequency span accuracy

Accuracy

3-2 Specifications

Frequency Count

Displays the frequency of the signal on whose response the marker is positioned. The marker must be positioned at least 20 dB above the noise or the intersection of the signal with an adjacent signal, and more than four divisions up from the bottom of the display.

Counter resolution is normally a function of frequency span, but may be specified directly using ISHIFT_] (YJ

Frequency Count Accuracy

Frequency Span

5100 kHz

Accuracy

<&[frequency reference error x displayed frequency

+ 2 x frequency counter resolution]

>lOO kHz to 1 MHz <*[frequency reference error x displayed frequency

+ 10 Hz + 2 x frequency counter resolution]

>l MHz c&l10 kHz + freauencv counter resolution1

Resolution

Resolution Bandwidth

3 dB bandwidths of 10 Hz to 3 MHz in a 1, 3, 10 sequence. Bandwidth may be selected manually or coupled to frequency span (AUTO mode).

3 dB Bandwidth Accuracy*

3

MHz

3

kHz to 1 MHz

Bandwidth Accuracy

&20%

510%

10 Hz to 1 kHz

f20%

*30

kHz and 100 kHz bandwidth accuracy figures only applicable

190% relative humidity, 140 “C.

7

60 dB to 3 dB Bandwidth Selectivity Ratio*

100 kHz to 3 MHz

3

kHz to 30 kHz

30 Hz to 1 kHz

Bandwidth

) Selectivity

<15:1

<13:1

<12:1

*60 dB points on 10 Hz bandwidth are separated by ~100 Hz.

Specifications 3-3

3-4 Specifications

Resolution Bandwidth (Option 462 6 dB Bandwidths)

6 dB bandwidths of 10 Hz to 3 MHz in 1, 3, 10 sequence. Bandwidth may be selected manually or coupled to frequency span (AUTO mode).

6 dB Bandwidth Accuracy*

3 MHz

30 Hz to 1 MHz

10 Hz

Bandwidths Accuracy f20%

flO%

+50, -0%

*30 kHz and 100 kHz bandwidth accuracy figures only applicable

590% relative humidity 540’C.

60 dB/6 dB Bandwidth Selectivity Ratio*

100 kHz to 3 MHz

30 Hz to 30 kHz

Bandwidths Selectivity

<ll:l

<8:1

‘60 dB points on 10 Hz bandwidth are separated by ~100 Hz.

Resolution Bandwidth (Option 462 Impulse Bandwidths)

Impulse bandwidth of 1 kHz to 3 MHz and 6 dB bandwidth of 10 Hz to

300 Hz in 1, 3, 10 sequence. Bandwidth may be selected manually or coupled to frequency span (AUTO mode).

Impulse Bandwidth Accuracy *

Bandwidth

3 MHz (Impulse Bandwidthi)

Accuracy f20%

1 kHz to 1 MHz (Impulse Bandwidtht)

10 Hz to 300 Hz (6 dB Bandwidth) flO%

+50%, -0%

*30 kHz and 100 kHz bandwidth accuracy figures only applicable

190% relative humidity 540 “C.

1 Applicable in 10 dB/div.

60 dB/6 dB Bandwidth Selectivity Ratio*

100 kHz to 3 MHz

30 Hz to 30 kHz

Bandwidth

Selectivity

<ll:l

<8:1

*60 dB points on 10 Hz bandwidth are separated by ~100 Hz.

Bandwidth Shape

Synchronously-tuned, five-pole filters for 10 Hz to 30 kHz bandwidths; four poles, 100 kHz to 3 MHz bandwidth. Approximate Gaussian shape optimized for minimum sweep time and smooth pulse response with calibrated display.

Stability

Residual FM

<3 Hz peak-to-peak in 110 seconds, span ~100 kHz, resolution bandwidth 530 Hz, video bandwidth 530 Hz.

Spectral Purity

Offset from Carrier

300 Hz

3 kHz

30 kHz

Noise Sidebands

Sideband Level (1 Hz BW)

-90 dBc/Hz

- 100 dBc/Hz

- 107 dBc/Hz

Power-Line-Related Sidebands

>85 dB below the peak of a CW signal.

Specifications 3-5

Amplitude

Measurement Range

Measurement range is the total amplitude range over which the analyzer can measure signal responses. The low value is determined by sensitivity (10 Hz resolution bandwidth and 0 dB input attenuation), and the high value by damage level.

Amplitude Measurement Range

- 135 dBm to + 30 dBm

Displayed Values

Scale

Over a lo-division CRT vertical axis with reference level (0 dB) at the top graticule line.

Lot!

Linear

Calibration

Calibration

10 dB/div for 90 dB display from reference level.

Expanded from reference level:

5 dB/div for 50 dB display

2 dB/div for 20 dB display

1 dB/div for 10 dB display

10% of reference level/div when calibrated in voltage.

Reference Level Range

Range

Lo&?

+30.0 to -99.9 dBm or equivalent in dBmV, dBpV, volts.

I I

Readout expandable to +60.0* dBm to -119.9 dBm

(-139.9 dBm for 11 kHz resolution bandwidth) using

(-SHIFT] [ATTEN_) (KSI).

Linear 7.07 V to 2.2 PV full scale. Readout expandable to 223.6 V* to 2.2 PV (0.22 PV for <I kHz resolution bandwidth) using

[SHIFT) [ATTEN) (KSI).

*Maximum total inout power not to exceed +30 dBm damage level.

Accuracy

The sum of several factors, listed in “Amplitude Uncertainty, ” determines the accuracy of the reference level readout. Refer to the

“Amplitude Uncertainty” section in this chapter.

3-6 Specifications

Reference Lines

Equals the sum of reference level accuracy plus the scale fidelity

Accuracy

between the reference level and the reference line level.

Dynamic Range

Spurious Responses

For total signal power of c-40 dBm at the input mixer of the analyzer, all image and out-of-band mixing responses, harmonic and intermodulation distortion products are >75 dB below the total signal power for input signals 10 MHz to 1500 MHz, >70 dB below the total signal power with input signals ~10 MHz.

Input mixer level is defined as the input attenuation subtracted from the total signal power at the input connector.

Second Harmonic Distortion *

I

Frequency Range

I

Distortion

210 MHz

<-70

dBc

<-60

dBc <lO MHz

I

*For a signal -30 dBm at the mixer.

I

I

Note

Note

Note

For typical second and third order distortion characteristics, see

Figure 4-4 in Chapter 4, “Performance Characteristics.”

Dynamic range due to Third Order Intermodulation Distortion and noise level can be calculated from 2/3 [TOI - displayed average noise level]. For example, at 900 MHz the analyzer’s specified dynamic range when using the 10 Hz resolution BW is: 2/3 [ + 10 dBm - (-135 dBm)] = 2/3(145) = 96.7 dB.

Two-tone intermodulation distortion products can be calculated from

2(TOI - signal level). For example, for two tones at -30 dBm, the intermodulation products for a +5 dBm TO1 will be:

2[ + 5 dBm - (-30)] = 70 dB down.

Third Order Intermodulation Distortion *

Center

Frequency

>lOO kHz

>lO MHz

Signal

Separation

<lOO kHz

>lOO kHz

Distortion

Products

<-70

dBc

<-80

dBc

*For two signals, each -30 dBm at the mixer.

TO1

>+5 dBm

>+lO dBm

Residual Responses

Residual responses are signals generated by the analyzer independent of input signals.

Specifications 3-7

3-8 Specifications

Frequency Range

500 Hz to 1500 MHz

Residual Responses *

Residual Responses

c-105 dBm

*With 0 dB input attenuation and no input signal.

Gain

Compression

~0.5 dB for signal levels s-10 dBm at the input mixer.

Displayed

Average Noise Level (Sensitivity)

Average Noise *

Tuning Range

500 Hz to 51 MHz

Level

c-112 dBm

>l MHz to 1500 MHz c-135 dBm

*0 dB input attenuation, 10 Hz resolution bandwidth, and

1 Hz video bandwidth.

‘lhble Footnotes l

Requires executing the error-correction function ([GiK]

IFREQUENCY

SPAN

)) after stabilization at new ambient temperature.

Otherwise, typical amplitude drift may be ho.05 dB/‘C (at

-10 dBm reference level, 10 dB input attenuation and 1 MHz resolution bandwidth.)

’ COUPLED FUNCTION not required as long as MEAS UNCAL message is not displayed.

3 For IF-Display sections with serial prefixes 3014A and above, specification applies over entire display.

5

4 Assuming calibration signal is used to calibrate the reference level at -10 dBm and the input attenuator is fixed at 10 dB.

When the error-correction function is used, amplitude uncertainty is introduced because additional IF gain is used to offset the amplitude errors caused by resolution bandwidth switching, log scale switching, and RF gain errors.

6 Unaffected by error correction.

7 30 kHz and 100 kHz bandwidth switching uncertainty only applicable 590% relative humidity, 540 “C.

8 Referenced to Log 1 dB/div.

g Useable reference level range is a function of resolution bandwidth. Refer to “Average Noise Level” in Chapter 4,

“Characteristics. ”

Specifications 3-l 1

Marker

Sweep

The marker is a bright dot placed upon the display trace and is positioned horizontally by the DATA controls. The marker amplitude and frequency are displayed continuously.

Marker

Frequency Accuracy

Accuracy

Normal

A (Delta)

Same as center frequency accuracy + frequency span accuracy between marker and center frequency.

Same as frequency span accuracy. In FREQ COUNT mode, twice the frequency count uncertainty plus drift during the period of the sweep.

See “Drift” under “Stability” in the characteristics

ChaDter.

Marker

Type

Normal

A (Delta)

Amplitude Accuracy

Accuracy

Same as reference level accuracy + scale fidelity between the reference level and marker position.

Same as frequency response uncertainty + scale fidelity between the two markers.

Sweep Time Accuracy

I

Sweep Time

I

5100 second sweep times

I

>lOO second sweep times

I

I

I

Accuracy

xtZlO%

&20%

I

I

I

3-12 Specifications

Inputs

INPUT #l

Zonnector

?requency

Xange

Maximum Input ac dc

BNC female, front panel, fused

100 Hz to 1500 MHz, dc coupled

Continuous power: +30 dBm from 50 D source.

Mixer protected by diode limiter.

Pulse power: 5100 W, 10 ps pulse width with 250 dB input attenuation (50 dBm peak power to input mixer).

< 100 mA damage level

INPUT #2

Note

Zonnector

Frequency

Xange

Maximum Input ac dc

Type N female, front panel

100 kHz to 1500 MHz, ac coupled

Continuous power: + 30 dBm from 50 0 source.

Mixer protected by diode limiter.

Pulse power: 1100 W, 10 p-s pulse width with 150 dB input attenuation (50 dBm peak power to input mixer).

*50 v

+ 30 dBm (1 W) input damage level.

Specifications 3-13

Outputs

CAL OUTPUT

Connector ] BNC female, front panel

ImDedance I 50 D nominal

Frequency 20 MHz *(frequency reference error x

20 MHz)

1 Amplitude I -10 dBm *0.3 dB

1ST LO OUTPUT

Connector

Impedance

Frequency

Amplitude

Maximum Safe Reverse

Level

BNC female, rear panel

50 62 nominal

2.0 to 3.7 GHz

>+4 dBm

+27 dBm (l/2 W) total power into 50 Q

Options

All specifications are identical to the standard HP 8568B, except as noted below.

75 B Input Impedance,

Option 001

INPUT #1

Connector BNC female, front panel, not fused

Impedance 75 0 nominal

Frequency Range

500 Hz to 1500 MHz

Residual Responses, Input #l

Residual Response

c-99 dBm

Average Noise*, Input #I

Tuning Range Level

500 Hz to 1 MHz c-106 dBm

1 MHz to 1500 MHz c - 1 2 9 dBm

*0 dB input attenuation, 10 Hz resolution bandwidth, and

1 Hz video bandwidth.

3-14 Specifications

400 Hz Power Line

Frequency Operation,

Power Line Related Sidebands

Option 400

>75 dB below peak of a CW signal.

I

Frequency Range

I

500 Hz to 52.5 kHz

Residual Responses *

I

Residual Response

I c-95 dBm

>2.5 kHz to 1500 MHz

I

<-lo5 dBi7

*With 0 dB input attenuation and no input signal.

-1

I

Power Requirements

Specification

Line

Frequency

400 Hz flO% line frequency (50 Hz to 60 Hz operation for servicing only)

Line Voltage

100 or 120 V (+5%, -10%)

Operating Temperature Range

Power Line Frequency

Temperature

Range

5 “C to 35 “C 50 Hz to 60 Hz (service only, not for extended periods)

400 Hz 5 “C to 55 “C

Specifications 3-l 5

General

HP-IB Interface

SHl, AHl, T6, L4, SRI, RLl, PPO, DCl, DTl, Cl, C2, C3, C28, E2

Functions

Environmental

Note

Temperature

Operation: 0 “C to 55 “C

Storage: -40 “C to 75 “C

Increased internal temperatures may result if the rear-panel air filters are not cleaned regularly.

Altitude

Operation: 14,572 m (15,000 feet)

Storage: 115,240 m (50,000 feet)

Power Requirements

50 to 60 Hz; 100, 120, 220, or 240 volts (+5%, -10%); approximately

450 VA (40 VA in standby). 400 Hz operation is available as Option

400.

Humidity

Operation

Except as noted in electrical specifications, type tested at <95% relative humidity, 25 “C to 40 “C for 5 days.

Storage

5% to 90% relative humidity, 0 “C to 40 “C.

EMI

Conducted and radiated interference is within the requirements of MIL-STD 461C, Part 7 RE02 and CEO3 (Air Force), and within the requirements of CISPR Publication 11 and

Messempfaenger-Postverfuegung 526/527/79 (Kennzeichnung Mit

F-Nummer/Funkschutzzeichen).

X-Rays

IF Section Serial Prefix 3004A and above

X-rays generated by this instrument are sufficiently screened.

Die in diesem geraet entstehende roentgenstrahlung ist ausreichend abgeschirmt.

accel. voltage / beschl. spg < 20 kV

IF Section Serial Prefix 3001A and below

When operating, this instrument emits x-rays; however, it is well shielded and meets safety and health requirements of various countries, such as the X-Ray Radiation Act of Germany.

3-l 6 Specifications

Radiation emitted by this instrument is less than 0.5 mR/hr at a distance of five (5) centimeters from the surface of the cathode-ray tube. The x-ray radiation primarily depends on the characteristics of the cathode-ray tube and its associated low-voltage and high-voltage circuitry. To ensure safe operation of the instrument, adjust both the low-voltage and high-voltage power supplies as outlined in the

Performance Tests and Adjustments manual (if applicable).

Replace the cathode-ray tube with either an identical CRT or an approved retrofit kit only. If a retrofit kit is installed, the applicable specification is for “IF Section Serial Prefix 3004A and above.”

Number of German License: BW/50/79/ROE

Waehrend des Betriebs erzeugt dieses Geraet Roentgenstrahlung.

Das Geraet ist so abgeschirmt, dass die Dosisleistung weniger als 36 PA/kg (0,5 mR/h) in 5cm Abstand von der

Oberflaeche der Katodenstrahlroehre betraegt. Somit sind die

Sicherheitsbestimmungen verschiedener Laender, u.A. der deutschen

Roentgenverordnung eingehalten.

Die Staerke der Roentgenstrahlung haengt im Wesentlichen von der Bauart der Katodenstrahlroehre ab, sowie von den

Spannungen, welche an dieser anliegen. Urn einen sicheren Betrieb zu gewaehrleisten, duerfen die Einstellungen der Niederspannungsund des Hochspannungsnetzteils nur nach der Anleitung des Handbuches vorgenommen werden.

Ersetze die Kathodenstrahlroehre entweder durch eine identische oder mit einem zugelassenen Nachruestsatz. Wenn der Nachruestsatz installiert ist, haben die Spezifikationen des ZF Teils mit der

Serien-Vornummer 3004A und darueber Gueltigkeit.

Das Geraet ist in Deutschland zugelassen unter der Nummer:

BW/50/79/ROE

Specifications 3-17

Warm-Up Time

Note

F’requency Reference

From a cold start (no line power connected to HP 8568B), the following conditions apply: n

~72 hours to meet aging rate specification after <24-hour off period.

n

~30 days to meet aging rate specification after indefinite off period.

n

~30 minutes to be within 1 x lo-” of 24-hour warm-up frequency

(at 25 “C).

If the above conditions do not apply, refer to the specifications below under “Operation. ”

Operation

Requires 30-minute warm-up from STANDBY mode, 0 “C to 55 “C.

Internal temperature equilibrium is reached after 2-hour warm-up at stabilized ambient temperature.

Weight

Total (net)

RF Section (net)

IF-Display Section (net)

RF Section (shipping)

IF-Display Section (shipping)

Weight

45 kg (110 lb)

24 kg (53 lb)

21 kg (47 lb)

32 kg (70 lb)

27 kg (60 lb)

3-18 Specifications

Dimensions

TOP

Figure 3-1. Instrument Dimensions with Handles

( A l l o w 1 0 0 r r m , 4 i n c h c l e a r a n c e a t r e a r p a n e l f o r i n t e r c o n n e c t c a b l e s . )

4 2 5 . 5 rrn- ( 1 6 7 5 i n )

TOP

6 0 9 . 6

M T

( 2 4 i n )

Figure 3-2. Instrument Dimensions without Handles

Specifications 3-l 9

Characteristics

Note

Supplemental characteristics are intended to provide information useful in applying the instrument by giving typical, nonwarranted, performance parameters.

Frequency

Resolution

0

10 a

73 2 0

8 z 30

E

; 4 c

n w 5C

2 k

1 6 C

4

7 0

8 0

1 0 H z 1 0 0 H z

1 kHz 1 0 kHr 1 0 0 kHz

F R E Q U E N C Y

1 MHz

1 0 MHz

100 MHz

Figure 4-l. Typical Spectrum Analyzer Resolution

Characteristics 4-l

Stability

Drift

Because the analyzer frequency is corrected on retrace, drift occurs only during the period of one sweep. This drift is in addition to frequency reference error due to aging.

Frequency Span

Drift (per Minute of Sweep

Time) *

5100 kHz

<lO Hz

> 100 kHz to 5 1 MHz

<lOO Hz

I

I

>l MHz

I

I

*After 1 hour warm-up at stabilized temperature.

<300 kHz

I

I

I

Spectral Purity

Noise Sidebands

Refer to Figures 4-2 and 4-3 for typical noise sideband performance.

T y p i c a l S S B N o i s e v s . O f f s e t f r o m C a r r i e r

- 6 0

- 8 0

- 9 0

IiT y - 1 0 0 is

--110

- 1 2 0

- 1 3 0

I n d i c a t e S p e c i f i e d L i m i t s s e a t 2 0 M H z , S p a n s <I M H z l

[email protected] Noi s e a t 5 0 0 M H z , S p a n s g-1 M H z

- 1 4 0

-SSB NOI s e ot 1 5 0 0 MHz, S p a n s <t M H z

-SSB N o use at 1 6 5 0 M H z , S p a n s <lMHz

- 1 5 0

10 Hz 1 0 0

Hz 1 kHz 10 kHz 1 0 0 kHz 1 MHz

F R E O U E N C Y O F F S E T F R O M C A R R I E R

10 MHz 100 MHz

Figure 4-2.

Single Sideband Noise Normalized to 1 Hz BW versus Offset from Carrier

4-2 Characteristics

Amplitude

Average Noise Level

M a x i m u m I n p u t L e v e l +30 dBm ( 1 w a t t )

- 5 0

- 6 0

E

7J

-70 m m

3

- 8 0

.-

-

F-loo

- 1 1 0

- 1 2 0

- 1 3 0

- 1 4 0

- 1 5 0

1 OHz 1 OOHz 1 kHz 1 OkHz IOOkHz

IMHz IOMHz IOOMHz 1GHz 1 OGHz

F r e q u e n c y O f f s e t F r o m L o c a l O s c i l l a t o r F e e d t h r o u g h

( - 1 5 dBm T y p i c a l L O L e v e l )

Figure 4-3. Typical Sensitivity vs. Input Frequency

Log to Linear

Signals at the reference level in log translate to approximately full

Switching

scale signals in linear typically within f 1 .O dB at room temperature

(20 “C to 30 “C).

Frequency Response

(Flatness) Uncertainty

Frequency Response *

Input #l

100 Hz to 500 MHz

100 Hz to 1500 MHz f0.75 dB fl.O dB

1500 MHz to 1650 MHz + l.O/-4.0 dB

Input #2

100 kHz to 1500 MHz f 0 . 7 dB

1500 MHz to 1650 MHz + l.O/-4.0 dB

* 210 dB input attenuation

Characteristics 4-3

Residual Responses

Residual responses are signals generated by the analyzer independent of input signals.

Residual Responses *

Frequency Range Residual Responses

100 Hz to 500 Hz c-105 dBm* *

500 Hz to 1500 MHz c-105 dBm

* With 0 dB input attenuation and no input signal.

* * Except for line-related residuals and LO feedthrough skirt (in the 100 Hz to 110 Hz range), typically c-100 dBm.

N o m i n a l d y n a m i c r a n g e

- 9 0 - 8 0 - 7 0 - 6 0 - 5 0

-40 - 3 0 - 2 0 - 1 0

E f f e c t i v e I n p u t ( S i g n a l L e v e l - i n p u t Atten) dBm

0

Figure 4-4. Typical Optimum Dynamic Range

Third Order

See Figure 4-4 for typical second and third order distortion

Intermodulation

characteristics.

Distortion

Note

Dynamic range due to Third Order Intermodulation Distortion and noise level can be calculated from 2/3 [TOI - displayed average noise level]. For example, at 900 MHz the analyzer’s specified dynamic range when using the 10 Hz resolution BW is: 2/3 [ + 10 dBm - (-135 dBm)] = 2/3(145) = 96.7 dB.

4-4 Characteristics

Inputs

RF INPUTS

Input #l

Input #2

*>lO dB input attenuation

SWR*

100 Hz to

500

Tune Frequency

MHz

500

MHz to

1500 MHz

<1.5:1

<2.0: 1

<1.5:1

<1.5:1

Isolation

Typically >85 dB isolation between inputs.

LO

Emission

Typically c-75 dBm (0 dB input attenuation)

VIDEO INP

Connector

Impedance

Amplitude

BNC female, rear panel

139 Q oto2v

IF INP

Connector

Impedance

Frequency

Amplitude

BNC female, rear panel

50 n

21.4 MHz

-5 dBm with 10 dB input attenuation and 0 dBm reference level for full screen signal

EXT TRIGGER

Connector

Impedance

Trigger Level

Maximum Input

BNC female, rear panel

1 kQ, nominal

>+2.4 V

5 v

Characteristics 4-5

FREQ REFERENCE

Connector

Impedence

Frequency

Amplitude

Phase Noise and

Spurious Signals

BNC female. rear Dane1

50 Q, nominal

10 MHz f50 Hz

0 dBm to + 10 dBm

Analyzer performance will be degraded unless frequency reference phase-noise and spurious signals are 5140 dBc/Hz, referred to 10 MHz at a 100 Hz to 10 kHz offset.

outputs

Display Outputs

X, Y, and Z outputs for auxiliary CRT displays. Compatible with

HP 1300 series displays.

BNC female, rear panel IConnectors

Amplitude

X

Y

Z

BLANK

Rise Time

X

Y

1 V for full deflection

1 V for full deflection

0 to 1 V intensity modulation, -1 V blank

TTL level >2.4 V for blanking.

Compatible with most oscilloscopes.

~75 ns

<75 ns

<30 ns

Recorder Outputs

SWEEP

Outputs to drive all current HP X-Y recorders using positive pencoils or TTL penlift input.

[

LOWER LEFT

] and

[

UPPER RIGHT

] keys calibrate the recorder SWEEP and VIDEO outputs with 0,O and 10,l V respectively, for adjusting X-Y recorders.

A voltage proportional to the horizontal sweep of the frequency sweep generator.

Connector

Amplitude

Tmnwl2nc~

BNC female, rear panel

0 V for left edge, + 10 V for right edge

1.7 k D nominal

4-6 Characteristics

VIDEO

Detected video output (before A-D conversion) proportional to vertical deflection of the CRT trace.

Connector

Amplitude

Impedance

BNC female, rear panel

100 mV/div from 0 to 1 V

5475 62 nominal

PENLIFT

I Connector BNC female, rear panel

0 V from 10 Q source

+ 15 V from 10 kfl source

,

2 1.4 MHz IF OUTPUT

Connector BNC female, rear panel

ImDedance 50 0 nominal

Frequency 2 1.4 MHz

Amplitude -20 dBm for a signal at the reference level.

Controlled by the input attenuator and IF step gain positions.

Scaling Logarithmically related to the RF input signal when in log scales.

Linearly related to RF input signal when in linear scale.

Bandwidth Controlled bv the analvzer’s resolution bandwidth setting.

FREQ REFERENCE

(OUT)

Connector

Impedance

Frequency

Amplitude

VIDEO OUT

I Connector

Impedance

Amplitude

BNC female, rear panel

50 0 nominal

10.000 MHz

0 dBm

1 BNC female. rear Dane1

>lO 62 oto2v

Characteristics 4-7

IF OUT

Cl

-11 dBm nominal with 10 dB input

PROBE POWER

(front panel)

Voltage

+ 15 Vdc, -12.6 Vdc

Current

150 mA maximum. each

Probe Compatibility HP 1121A (use only with with Input #2)

HP 1120A

HP 85024A

HP 10855A Preamnlifier

General

Acoustic Noise

Emission/

Geraeuschemession

This instrument is in conformance with the “German Regulation on Noise Declaration for Machines. ” (Laermangabe nach der

Maschinenlaermrerordnung -3. GSGV Deutschland.)

* Test was conducted per IS0 7779 and DIN 45635 teil 1.

4-8 Characteristics

Function

Descriptions

Sweep

Free Run

Line

Video

External

Characteristics

Sweep triggered by internal source.

Sweep triggered by power line frequency.

Sweep triggered by detected waveform of input signal at an adjustable level; signal must be 20.5 div peak-to-peak.

For sweeps of 10 ms and less (zero span) the signal must have

>40 Hz rate. [W) (VIDEO_) (KSy) allows any envelope rate, but display will blank between triggers when sweep is

<20 ms.

Sweep triggered by rising edge of signal input to rear-panel

BNC connector; trigger source must be >2.4 V (10 V maximum).

For sweep of 10 ms and less (zero span), trigger source must have >40 Hz rate. (SHIFT] IEXT_) (KSx) allows any trigger source rate, but display will blank between low repetition rate

Continuous

Single

trigger when sweep is ~20 ms.

Sequential sweeps initiated by the trigger.

Single sweep armed on activation and initiated by trigger

(sweep 220 ms only).

Sweep Time

Range

Span = 0 1 ps to 10 ms in 1, 2, 5 sequence.

HZ

20 ms to 1500 s in 1, 1.5, 2, 3, 5, 7.5, 10 sequence.

HZ

Span > 0

20 ms to 1500 s in 1, 1.5, 2, 3, 5, 7.5, 10 sequence.

Characteristics 4-9

4-10 Characteristics

Cathode Ray Tube

Type: Post-deflection accelerator, aluminized P31 phosphor, electrostatic focus and deflection.

Viewing Area: Approximately 9.6 cm vertically by 11 .O cm horizontally (3.8 in x 4.7 in). The CRT is completely turned off with

(GE) (

CLEAR WRITE

)

(trace B, KSg) and on with [SHIFT) [HOLD]

(trace B, KSh) to avoid unnecessary aging of the CRT during long-term unattended operation of the analyzer.

Instrument State Storage

Up to six complete sets of user-defined control settings may be stored and recalled by pressing SAVE or RECALL and the desired register number (1 to 6) from the keyboard. Register 0 stores the current state while register 7 stores the instrument state prior to the last function change via the numeric/unit keyboard, step keys, or INSTR PRESET.

Registers 8 and 9 store the two instrument calibration states.

To lock the save registers press (SHIFT) [SAVE) (KS( ). To unlock the save registers, press (EJ [RECALL] (KS) ).

Instrument state information stored in registers 0 through 7 is retained in memory for approximately 1 year in STANDBY mode or after line power is removed and analyzer is stored between 20 “C and

30 “C.

Remote Operation

The standard HP 8568B operates on the Hewlett-Packard Interface

Bus (HP-IB). All analyzer control settings (with the exception of

VIDEO TRIGGER LEVEL, FOCUS, ALIGN, INTENSITY, FREQ ZERO,

AMPTD CAL, and LINE power) are remotely programmable. Function values, marker frequency/amplitude, and A/B traces may be output;

CRT labels and graphics may be input.

LCL: Returns analyzer to local control, if not locked out by controller.

Service Request: (SHIFT] OLIN) (KSr) calls an HP-IB request for service.

Operation Verification

What You’ll Find in

This chapter describes the HP 8568A/B Operation Verification

This Chapter

software and how to use it to verify spectrum analyzer operation.

Test System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5

Equipment Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5

Program Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

Program Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

HP-IBAddresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9

Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-10

Test Descriptions

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-10

1. Input Attenuator Switching Uncertainty . . . . . . . . 5-11

2. IF Gain Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-12

3. Scale Fidelity (Log) . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-13

4. Scale Fidelity (Linear) . . . . . . . . . . . . . . . . . . . . . . . . . .

5-14

5. Log Scale Switching Uncertainty . . . . . . . . . . . . . . . . 5-15

6. Resolution Bandwidths . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

7. Impulse and Resolution Bandwidths . . . . . . . . . . . . . 5-17

8. Line Related Sidebands . . . . . . . . . . . . . . . . . . . . . . . . 5-18

9. Residual FM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-19

10. RF Gain Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

11. Sweep Time Accuracy

. . . . . . . . . . . . . . . . . . . . . . . . 5-2 1

12. Average Noise Level . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22

13. Residual Responses . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-23

14. Frequency Span Accuracy . . . . . . . . . . . . . . . . . . . . . 5-24

15. Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . .

5-25

16. Second Harmonic Distortion . . . . . . . . . . . . . . . . . . . 5-26

17. Third Order Intermodulation Distortion . . . . . . . . 5-27

18. Cal Output Amplitude Accuracy . . . . . . . . . . . . . . . 5-28

Operation Verification is automatic performance test software designed to give a high confidence level in the operation of the

HP 8568A/B spectrum analyzer in a reasonable time. It performs

80 percent to 85 percent of the manual performance tests in approximately 60 minutes and is designed to test an instrument operating within a temperature range of 20 “C to 30 “C. Refer to

Table 5-l for a list of tests performed.

5

Operation Verification 5-1

Note

Note

Note

If an HP 8568A/B passes all Operation Verification tests, be assured that the spectrum analyzer is performing within the specifications indicated in each test. These specifications are representative of the specifications listed in Chapter 3, “Specifications.” If a test does not pass then the related manual performance test needs to be run. Related manual performance tests are located in the

HP

8568A/B Performance lbsts and Adjustments Manual (HP part number

08568-90105).

The HP 8568A/B Operation Verification software automates the majority of the manual performance tests for a performance verification. Table 5-2 lists the manual performance tests that are not included in the automated Operation Verification software.

The validity of the measurements in the Operation Verification program is based in part on the accuracy of the test equipment used to perform the test. Therefore, proper calibration of the test equipment must be verified before instrument operation can be checked using the Operation Verification program.

Measurement uncertainties may cause the Operation Verification program to indicate an instrument specification is out of tolerance even though the performance test in the Tests and Adjustments manual indicates it to be within tolerance. In this event the

Performance Test data is to be considered more valid.

The Option 462 6 dB Bandwidth instrument shares the same

Operation Verification software as the Option 462 Impluse Bandwidth instrument. When testing the 6 dB version, Test 7 Impulse and

Resolution Bandwidths must not be performed and the following manual tests must be performed: n

6 dB Resolution Bandwidth Accuracy Test n

6 dB Resolution Bandwidth Selectivity Test

The manual tests are located in the

HP 8568B rt?rfommnce Zests and

Adjustments Manual.

5-2 Operation Verification

‘lhble 5-1. Tests Performed

Test Number and Name

1. Input Attenuator Switching Check

2. IF Gain Uncertainty

3. Scale Fidelity (Log)

4. Scale Fidelity (Linear)

5. Log Scale Switching

6. Resolution Bandwidths

7. Impulse and Resolution Bandwidths

(Option 462 Impulse Bandwidth)t

8. Line-Related Sidebands

HP 3335A

HP 3335A

HP 3335A

HP 3335A

Equipment Required

HP 3335A none

HP 8112A or HP 8116A

HP 3335A none

9. Residual FM

10. RF Gain Uncertainty

11. Sweep Time Accuracy

12. Average Noise Level none none none

HP 909A, Option 012

13. Residual Responses

14. Frequency Span Accuracy

15. Frequency Response

16. Second Harmonic Distortion

17. Third Order Intermodulation Distortion

HP 909A, Option 012

HP 3335A or

HP 83640A*

HP 3335A and

HP 83640A* or HP 8444A, Option 059

HP 8902A or HP 436A or HP 438A

HP 8482A

HP 11667A

HP 3335A

50 MHz LPF

(HP p/n 0955-0306)

HP 83640A’

HP 8335A

HP 8721A

50 MHz LPF

(HP p/n 0955-0306,

2 required)

18. Cal Output Amplitude Accuracy HP 436A, Option 022

HP 8482A

‘ Alternate sources are: HP 83620A, HP 83623A, HP 83650A, HP 8340A/B, and 8341A/B.

i Option 462 6 dB Bandwidth instruments must be manually tested. See note.

1

Operation Verification 5-3

‘Ihble 5-2. Tests Not Performed

Center Frequency Readout Accuracy Test

Spurious Responses Test

Fast Sweeptime Accuracy Test

1ST LO Output Amplitude Responses Test

Frequency Reference Error Test

‘Ikble 5-3. Equipment Summary

HP Part Number Equipment

HP 9000 Series 200 or HP 9000 Series 300 Computer*

HP 3335A Frequency Synthesizer

HP 83640At or HP 8444A, Option 059

HP 436A or HP 438A

Synthesized Sweeper

Tracking Generator or HP 8902A

HP 8482A

Power Meter

Measuring Receiver

Power Sensor

50 Ohm Termination

HP 909A Option 012

HP p/n 0955-0306

HP 11667A

HP 8721A

50 MHz Low-Pass Filter (2 required)

Power Splitter

Directional Bridge

APC 3.5 Low-Loss Microwave Test Cable HP p/n 8120-4921

HP-IB Printer

Miscellaneous Cables and Adapters

* HP 98624A HP-IB Interface is needed for dual-bus systems.

300 K of free memory is required for the test program.

tAlternate sources are: HP 83620A, HP 83623A, HP 8340A/B, and HP 8341A/B.

5-4 Operation Verification

Test System

Configuration

Note

The HP 8568A/B Operation Verification program requires an HP 9000

Series 200 or HP 9000 Series 300 computer with HP BASIC 2.0

and Extensions 2.1 or BASIC 3.0 or higher. An HP 362 or HP 382 computer can also be used and requires BASIC 6.2 or higher. The program operates on either a single or dual HP-IB computer system.

For a dual bus system it is also necessary to have an HP 98624A HP-IB

Interface to connect the HP 8568AB to the computer separately from the test equipment.

The Operation Verification software is designed for optimum operation with a dual bus system. The dual bus system is used with the

Microwave Test Set (MTS). In this configuration, the bus for the test equipment has a select code of 7, while the bus for the instrument under test has a select code of 8. The software will adapt itself to a single bus system if an HP 98624A HP-IB Interface at select code 8 is not present.

The equipment needed to perform the HP 8568A/B Operation

Verification is listed in both Table 5-l and ‘lhble 5-3. ‘Iable 5-l includes a test-by-test listing of the equipment needed,

and

Table 5-3 includes a test equipment summary. To obtain a permanent record of the test results an HP-IB printer is required. The HP 8568A/B CRT display may be selected to display the test results if a permanent test record is not desired.

Because test results are expected to change over a period of time,

Hewlett-Packard warrants only the specification range and not the repeatability of the data for any given specification.

Equipment

Connections

Note

For a dual bus system, connect the test equipment to the computer as shown in Figure 5- 1. The instrument under test is connected separately to the HP 98624A Interface card.

For a single bus system, connect the test equipment and instrument under test to the computer (as shown in Figure 5-2).

Turn the HP 8568A/B m to On and allow a 2 hour warm-up.

Also, allow sufficient warm-up time for the other test equipment as indicated in the individual operating and service manuals.

When connecting signals from the synthesized sweeper or tracking generator to the test setup, it is necessary to use a high frequency cable with minimum attenuation to 1.5 GHz.

Operation Verification 5-5

B U S t o M T S S y s t e m

S e l e c t C o d e o f 7 .

B U S t o U n i t U n d e r T e s t (HP8568B)

S e l e c t C o d e o f 8 .

Figure 5-l. Dual Bus (MTS) System Connection

5-6 Operation Verification

o M T S S y s t e m

Figure 5-2. Single Bus System Connection

Program Loading

To load and run the HP 8568A/B Operation Verification program, one of the following HP BASIC language systems is required: w BASIC 2.0 with Extensions 2.1

n

BASIC 3.0 or higher including the following binaries: q

MAT

0 IO q

GRAPH q

HPIB q

ERR (not required but recommended) w BASIC 6.2 or higher must be installed in the HP 362 or HP 382.

For additional computer configuration instructions, refer to the

Installation Reference manual included with the HP BASIC language system.

The HP 8568A/B Operation Verification program stores configuration and power sensor calibration data in files on the floppy disk. Inspect the floppy disk to verify that it is not write-protected, and insert it into the appropriate disk drive. Then type:

Press [EXECUTE] on HP 9000 Series 200 computers, or (RETURN] on

HP 9000 Series 300 computers, to load and run the program.

Program Operation

The Operation Verification program uses the HP 8568A/B CRT to display program options and status, and allows the user to select options using the spectrum analyzer keyboard. The first few displays provide the user with selection menus for configuring the software to the available test equipment.

After the program name and revision is displayed for several seconds, the LIST OF DEFAULTS display appears, providing the user with a selection menu. At this point in the program, the user must enter the

HP model numbers and HP-IB addresses of the test equipment that will be used, as well as the local ac power line frequency. To change one of the entries, position the pointer using the front-panel knob and press (Hz). Then, enter the appropriate HP-IB address, serial number, line frequency, or one of the valid model numbers listed in ‘lhble 5-4.

It is sometimes desirable to perform specific Operation Verification tests without the full set of test equipment listed in ‘Ihble 5-4.

For example, several of the tests can be performed with no test equipment by using the spectrum analyzer CAL OUTPUT signal as an input signal. If an item of test equipment is not available, it is not necessary to change the corresponding default entries in the LIST OF

DEFAULTS display.

From the LIST OF DEFAULTS display, the user may proceed with the program by pressing [Hz. However, a valid power sensor calibration

Operation Verification 5-7

5-8 Operation Verification

data file must exist on the software disk before the program will proceed with testing. If such a file does not exist, the program will prompt the user to enter calibration data through the computer keyboard. The sensor calibration data is then stored on the software disk. An existing power sensor calibration data file may be reviewed or modified by re-entering the power sensor serial number in the LIST

OF DEFAULTS display.

After the LIST OF DEFAULTS display, the next display allows the user to select whether the test results will be printed out or displayed on the spectrum analyzer CRT.

Next, the program checks to verify that each piece of test equipment responds at its designated HP-IB address. The user is prompted with a list of test equipment that does and does not respond, and is offered the choice of continuing with the program, repeating the equipment check, or returning to the LIST OF DEFAULTS display to change HP-IB addresses. The program will automatically limit the number of tests that can be performed, based on this list of available test equipment.

If the user chooses to proceed by pressing a), the program attempts to measure the spectrum analyzer CAL OUTPUT signal, and prompts the user to connect the CAL OUTPUT to the RF INPUT and adjust the front-panel AMPTD CAL and FREQ ZERO controls as appropriate.

Refer to Figure 5-3 for the location of the AMPTD CAL and FREQ

ZERO controls. Once these adjustments are within tolerance, the program activates the spectrum analyzer error correction (KSW) routine.

Once the error correction routine has completed, a test summary is displayed on both the computer and the spectrum analyzer. Both test summaries provide a status report on test progress. In addition, the test summary displayed on the spectrum analyzer provides the user with a selection menu of individual tests. The user enters the number of the desired test, followed by IHz) to perform the test one time, or

[kHz) to perform the test repetitively. If the user selects “All Tests”

(selection 0), the program will run each of the tests in sequence, skipping those tests that cannot be performed with the available test equipment.

Test results are printed or displayed at the completion of each individual test. Once a particular test is completed, the test summary displays are updated to reflect whether the test passed.

F R E Q . AMPiD

Z E R O

C A L

C‘A L

O U T P U T

#2

Figure 5-3. RF Input and Calibration Controls

HP-IB Addresses

‘Ihble 5-4 lists the default assigned addresses and test equipment. For dual bus systems the select code for the test equipment is 7 and the select code for the instrument under test is 8. (The address for the HP

8568A/B under test is 818.)

In single bus systems, the select code for the test equipment is 7, and the select code for the instrument under test is 7.

‘Ihble 5-4. BP-IB Addresses

Equipment

Power Meter

HP-IB Printer

BP Model

Frequency Synthesizer

Pulse Generator *

HP 3335A

HP 8112A or HP 8116A

HP 436A

Address

04

16

13

01

*Required to test Option 462 Impulse Bandwidth.

Operation Verification 5-9

Error Messages

Self-explanatory error messages are incorporated into the Operation

Verification program to assist you in identifying errors.

‘I&t Descriptions

The following test descriptions list the Specifications, Related

Performance Test, and Test Description for each test performed by the

Operation Verification program. The specifications listed below are those of each Operation Verification test and are uncorrected (where applicable). Operation Verification is designed to test an instrument operating within a temperature range of 20 “C to 30 “C.

5-10 Operation Verification

1. Input Attenuator Switching Uncertainty

1. Input

Attenuator

Switching

Uncertainty

Specification

Related Performance

Test

Description f 1 .O dB over 10 to 70 dB range

Input Attenuator Switching Uncertainty Test

A signal source of known amplitude is connected to the spectrum analyzer and the analyzer is adjusted for a reference. The input attenuator is stepped down from 10 dB to 70 dB, while the reference level and the signal source are stepped up. This maintains the signal peak at the same approximate location on the CRT display. The amplitude of the signal is measured at each step using the marker function on the spectrum analyzer.

Operation Verification 5-11

2. IF Gain

Uncertainty

Specification

0.0 dBm to -55.9 dBm . . . . . . . . . . . . . . . . . . . . . . . . . . f0.6 dB

-56.0 dBm to -129.9 dBm . . . . . . . . . . . . . . . . . . . . . . hl.0 dB

IF Gain Uncertainty Test

Related Performance

Test

Description

A signal source of known amplitude is connected to the spectrum analyzer and the analyzer is adjusted for a reference level. The amplitude of the signal peak is measured in 0.1 dB steps from -0.1 dB to -1.9 dB, in 2 dB steps from -1.9 dB to -9.9 dB, and in 10 steps from -10 dB to - 120 dB.

5-12 Operation Verification

3. Scale Fidelity (Log)

3. Scale Fidelity

(Log)

Specification

5 *l.O dB max. over 0 to 80 dB display

< f 1.5 dB max. over 0 to 90 dB display

Related Performance

Amplitude Fidelity Test

Test

Description

The specification listed is for cumulative error. Only cumulative error is measured in this procedure.

A signal source of known amplitude is connected to the spectrum analyzer and the analyzer is adjusted for a reference. The signal source is stepped down in 1 dB steps and the displayed signal amplitude on the spectrum analyzer measured at each step. This measurement is performed in both the 3 kHz and 300 kHz bandwidths.

Operation Verification 5-13

4. Scale Fidelity

(Linear)

Specification

Related Performance

Test

Description

413% of Reference Level

Amplitude Fidelity Test

A signal source of known amplitude is connected to the spectrum analyzer and the analyzer is adjusted for a reference. The signal source is stepped down from -10 dB to -30 dB in 10 dB steps and the amplitude of the displayed signal measured using the marker function.

This measured value is used to calculate the percent error from the reference level established.

5-14 Operation Verification

5. Log Scale Switching Uncertainty

5. Log Scale

Switching

Uncertainty

Specification

Related Performance

Test

Description

310.5 dB

Log Switching Uncertainty Test

A signal source of known amplitude is connected to the spectrum analyzer and the analyzer is adjusted for a reference in the 1 dB per division log scale. The spectrum analyzer is then switched to each of the other LOG scales (2 dB, 5 dB, and 10 dB). The amplitude of the signal peak is measured at each setting.

Operation Verification 5-15

6. Resolution

Bandwidths

Specification

Bandwidth

Amplitude

Selectivity

10 Hz to 3 MHz; *20%

3

kHz to 1 MHz; flO%

(Referenced to 1 MHz amplitude)

3

MHz; fl.O dB

1 MHz to 100 Hz; f0.5 dB

30

Hz; AO.8 dB

10 Hz; f2.0 dB

(60 dB/3 dB Ratio)

3

MHz to 100 kHz; <15: 1

30

kHz to 10 kHz; <13: 1

3 kHz to 30 Hz; <ll:l

10 Hz; ~100 Hz separation of 60 dB points

Related Performance

Tests

Description

Note

Resolution Bandwidth Accuracy Test

Resolution Bandwidth Selectivity Test

Resolution Bandwidth Switching Uncertainty Test

A signal source is connected to the spectrum analyzer input. The analyzer steps through the bandwidths from 3 MHz to 10 Hz, centers the signal, sets signal peak near the reference level, and measures the frequency of the 3 dB points for each bandwidth. The 3 dB bandwidth is

then

calculated by determining the difference in frequency between the 3 dB points.

Next, the spectrum analyzer steps through the bandwidths and measures the frequency of the 60 dB points of each bandwidth. The

60 dB bandwidth is then calculated by determining the frequency difference between the 60 dB points.

The shape factors are calculated by dividing the 60 dB bandwidths by the 3 dB bandwidths.

This procedure is for instruments other than those having Option 462.

For Option 462 instruments perform the test on the following page.

5-16 Operation Verification

7. Impulse and Resolution Bandwidths (Opt. 462 Impulse Bandwidth)

7. Impulse and

Resolution

Bandwidths (Opt.

462 Impulse

Bandwidth)

Specification

Bandwidth

Amplitude

Selectivity

3 MHz; &20%

1 MHz to 1 kHz; &20%

300 Hz to 10 Hz; +50%, -0%

3 MHz; fl.O dB

1 MHz to 100 Hz; f0.5 dB

30 Hz; f0.8 dB

10 Hz; f2.0 dB

(60 dB/6 dB Ratio)

3 MHz to 100 kHz; <ll:l

30 kHz to 30 Hz; <8: 1

10 Hz; ~100 Hz separation of 60 dB points

Related Performance

Tests

Impulse & Resolution Bandwidth Accuracy Test

Impulse & Resolution Bandwidth Selectivity Test

Impulse & Resolution Bandwidth Switching Uncertainty Test

Description

A source outputting pulsed RF signals is connected to the spectrum analyzer input. The analyzer steps through the bandwidths from

3 MHz to 1 kHz, and the controller measures the frequency of the impulse response for each bandwidth.

Next, a CW signal is connected to the spectrum analyzer input.

The analyzer steps through all bandwidths for 3 MHz to 10 Hz, centers the signal, sets the signal peak near the reference level, and measures the frequency of the 6 dB points for each bandwidth. The

6 dB bandwidth is then calculated by determining the difference in frequency between the 6 dB points.

Last, the analyzer steps through the bandwidths and measures the

60 dB points for each bandwidth. The 60 dB bandwidth is calculated for each bandwidth. The selectivity of each bandwidth is then calculated by dividing the 60 dB bandwidth by the 6 dB bandwidth for each filter.

Note

This test is for Option 462 instruments only. For standard instruments, perform the test on the preceding page.

Operation Verification 5-17

8. Line Related

Sidebands

Specification

85 dB below the peak of a CW signal (Option 400: ~75 dB)

Related Performance

Line Related Sidebands Test

Test

Description

A signal source is connected to the spectrum analyzer input and the necessary front-panel control settings made for the test. The harmonics of the line frequency are calculated, the front-panel controls to view the frequencies, and measure the amplitude of the signal at each of the frequencies.

5-18 Operation Verification

9. Residual FM

9. Residual FM

Specification

Less than 3 Hz peak-to-peak for sweep time 510 s; span ~100 kHz; resolution bandwidth 530 Hz, video bandwidth 530 Hz.

Related Performance

Test

Description

Residual FM Test

A signal source is connected to the spectrum analyzer input and the required front panel control settings are made as stated in the specification. The slope of the signal is measured for use in calculating the residual FM. The signal is centered on the display and the peak-to-peak amplitude deviation of the signal measured. The frequency deviation is the result of the amplitude deviation being divided by the slope (measured earlier in the test).

Operation Verification 5-l 9

10. RF Gain

Uncertainty

Specification

Related Performance

Test

Description

RF gain uncertainty due to second LO shift: fl.O dB (uncorrected)

RF Gain Uncertainty Test

A signal is connected to the spectrum analyzer’s SIGNAL INPUT and the analyzer front panel controls set to view the signal. The 2nd LO is shifted up. The marker functions are used to measure the change in amplitude. The change corresponds to the difference in the signal level between the 2nd LO shifted up and the 2nd LO shifted down.

5-20 Operation Verification

11. Sweep Time Accuracy

11. Sweep Time

Accuracy

Specification

Sweep time 1100 s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4110%

Sweep time >lOO s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

f20%

Related Performance

Sweep Time Accuracy Test

Test

Description

An internal measurement function is used to measure the sweep time at 20 ms, 750 ms, 5 s, 30 s, 200 s, and 1500 s. These sweep times check all of the sweep time multipliers in the Sweep Generator

Current Source circuit (A22 Frequency Control). Sweep start-up time

(offset) is measured and subtracted from the measured sweep time.

The measured sweep time is compared to the selected sweep time and the percent error calculated.

Operation Verification 5-21

12. Average Noise

Level

Specification

Displayed: < - 135 dBm for frequencies > 1 MHz, <- 112 dBm for frequencies 11 MHz but >500 Hz with 10 Hz resolution bandwidth,

0 dB input attenuation, 1 Hz video filter.

Related Performance

Test

Description

Average Noise Level Test

The signal input of the spectrum analyzer is terminated with a 50 ohm load or the synthesizer and the analyzer attenuator. The necessary front-panel control settings are made and the average noise level measured at 501 Hz, 1001 MHz, and 1501 MHz.

5-22 Operation Verification

13. Residual Responses

13. Residual

Responses

Specification

Related Performance

Test

Description

-105 dBm, with 0 dB input attenuation

Residual Responses Test

The signal input of the spectrum analyzer is terminated with a

50 ohm load or the synthesizer and the analyzer attenuator. The peak amplitude of the noise or responses is measured at various frequencies associated with residual responses caused by harmonics and mixing products of the first, second, and third local oscillators, the internal reference, and the HP-IB and digital storage clocks.

Operation Verification 5-23

14. Frequency

Span Accuracy

Specification

For spans >l MHz; f(2% of the actual frequency separation, + 0.5% of span setting)

For span 51 MHz; f(5% of the actual frequency separation, + 0.5% of span setting)

Related Performance

Test

Description

Frequency Span Accuracy Test

A stable signal source is connected to the spectrum analyzer and the center frequency and span are set to measure spans of 10 MHz, 1

MHz, and 100 kHz.

5-24 Operation Verification

15. Frequency Response

15. Frequency

Response

Specification

INPUT #l f 1 .O dB, 100 Hz to 500 MHz (2 10 dB RF Attenuation)

~tl.5 dB, 100 Hz to 1500 MHz (210 dB RF Attenuation)

INPUT #2 fl.O dB, 100 kHz to 1500 MHz (210 dB RF Attenuation)

Related Performance

Test

Description

Frequency Response Test

The spectrum analyzer rear panel 1ST LO OUTPUT is connected to a tracking generator which supplies the input signal for the analyzer. A power meter is connected to a power splitter, along with the tracking generator, which in turn is connected directly to the SIGNAL INPUT connector of the analyzer. The signal amplitude is measured from

1 MHz to 1500 MHz in 20 MHz increments and compared to the measured value of the input signal indicated by the power meter.

This procedure is performed for both input connectors. The operator is asked to make the new connection to the other input connector mid-way through the test.

Operation Verification 5-25

16. Second

Harmonic

Distortion

Specification

For mixer level s-30 dBm:

100 Hz to 10 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <-60 dBc

>lO MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <-70 dBc

Harmonic and Intermodulation Distortion

Related Performance

Test

Description

A 40 MHz signal is applied to the analyzer’s RF INPUT through a

50 MHz low-pass filter. The spectrum analyzer is adjusted to measure the second harmonic at 80 MHz.

5.26 Operation Verification

17. Third Order Intermodulation Distortion

17. Third Order

Intermodulation

Distortion

Specification

Intercept is greater than +5.0 dBm from 100 kHz to 10 MHz and greater than + 10 dBm from 10 MHz to 1500 MHz.

Related Performance

Test

Description

Harmonic and Intermodulation Distortion Test

Two signals with 10 kHz and 1 MHz separation are applied to the first mixer. The frequencies of third order intermodulation products are calculated and the spectrum analyzer is set to measure the amplitude of these responses. The third order intercept is calculated from the measurements for each separation.

Operation Verification 5-27

18. Calibrator

Output Amplitude

Accuracy

Specification

-10 dBm, 310.2 dB

Related Performance

Calibrator Output Amplitude Accuracy Test

Test

Description

The power sensor is connected to the spectrum analyzer CAL

OUTPUT and the power is measured.

5.28 Operation Verification

Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement

Table of contents