Agilent 8590D Data Sheet

Page 1

Notice

Hewlett-Packard to Agilent Technologies Transition

This documentation supports a product that previously shipped under the HewlettPackard company brand name. The brand name has now been changed to Agilent Technologies. The two products are functionally identical, only our name has changed. The document still includes references to Hewlett-Packard products, some of which have been transitioned to Agilent Technologies.

Printed in USA March 2000

Page 2

Calibration Guide

HP 8590D Spectrum Analyzer

HEWLETT

Pia

Part No. 08590-90199

Printed in USA June 1992

PACKARD

Page 3

@Copyright Hewlett-Packard Company 1992 All

Rights

Reserved. Reproduction, adaptation, or translation without prior written permission

is prohibited, except as allowed under the copyright laws.

1212 Valley House Drive, Rohnert Park, CA 94928-4999, USA

Page 4

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.

. . .

III

Page 5

Certification

Hewlett-Packard Company certifies that this product met its published specifications at the time of shipment from the factory. Hewlett-Packard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institute’s calibration facility, and to the calibration facilities of other International Standards Organization members.

Regulatory Information

The specifications and characteristics chapter contains regulatory information.

Warranty

This Hewlett-Packard instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace products which prove to be defective.

For warranty service or repair, this product must be returned to a service facility designated by 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.

Assistance

Product rnaintename agreements and other customer assistance agreements are available for

Hewlett-Rxkard Fbr

any assistance, contact your nearest

products.

Hewlett-FWkard

Sales and

Seruice Ome.

Page 6

Safety Symbols

The following safety symbols are used throughout this manual. Familiarize yourself with each

of the symbols and its meaning before operating this instrument.

Caution

The caution sign denotes a hazard. It calls attention to a procedure which, if

not correctly performed or adhered to, could result in damage to or destruction of the instrument. Do not proceed beyond conditions are fully understood and met.

Warning

The warning sign 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 sign until the indicated conditions are fully understood and met.

General Safety Considerations

Before this

Warning

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.

instrument

is switched on, make sure it has been properly

acaution

sign until the indicated

Caution

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.

Page 7

HP 8590 Series Spectrum Analyzer Documentation Description

The following guides are shipped with your spectrum analyzer:

HP 8590 Series Spectrum Analyzer User’s

Tells you how to make measurements with your spectrum analyzer.

Describes the spectrum analyzer features.

Tells you what to do in case of a failure.

HP 8590 Series Spectrum Analyzer Quick Reference Guide

Describes how to make a simple measurement with your spectrum analyzer.

Briefly describes the spectrum analyzer functions.

Lists all the programming commands.

hide

The Calibration Guide for your spectrum analyzer

n Tells you how to test your spectrum analyzer to determine if the spectrum analyzer meets

its specifications.

Lists specifications and characteristics for the spectrum analyzer.

Documentation Options

Option 910:

HP 8590 Series Spectrum HP 8590 Series Spectrum Analyzer Quick Reference

Calibration Guide (Model Specific)

Provides an additional copy of the HP 8590 Series User’s, Programmer’s, and Quick Reference Guides, and the Calibration Guide.

Analyzer

User’s Guide

Guide

Option 915:

Service Guide (Model Specific)

HP 8590 Series Spectrum Analyzer Component-Level Information

The service guide describes assembly-level repair of the spectrum analyzer. Component-level information provides information for component-level repair of the spectrum analyzer.

Option 021 and Option 023:

HP 8590 Series Spectrum

Analyzer

Programmer’s Guide

The programmer’s guide describes spectrum analyzer operation via a remote controller (computer) for spectrum analyzers equipped with Options 021 or 023. This guide is provided when ordering spectrum analyzers equipped with either Option 021 or Option 023.

How to Order Guides

Each of the guides listed above can be ordered individually. To order, contact your local HP Sales and Service Office.

Page 8

How to Use This Guide

Where to Start

If you have just received your spectrum analyzer and want to get ready for use for the first time, do the following:

Read Chapters 1 and 2 of the

Perform the initial self-calibration routines described in Chapter 2 of the

Spectrum Analyzer

User’s Guide

equipment).

n If you need to verify the unit is operating within its specifications, perform the performance

verification tests in Chapter 1 of this guide.

HP 8590 Series Spectrum

Analyzer

User’s Guide.

HP 8590 Series

(these are automatic self-checks and require no test

After completing the performance verification, use the

User’s Guide to learn how to use the spectrum analyzer and to find more detailed information

HP 8590 Series Spectrum

Analyzer

about the spectrum analyzer, its applications, and key descriptions.

This guide uses the following conventions:

(Front-Panel Ke

Sof

tkey A boxed word written in this typeface indicates a “softkey,” a key whose label

Screen

Text

Caution

A boxed, uppercase name in this typeface represents a key physically located on the instrument.

is determined by the instrument’s firmware. Text printed in this typeface indicates text displayed on the spectrum analyzer

screen.

The CAUTION symbol denotes a hazard. It calls attention to a procedure which, if not correctly performed or adhered to, could result in damage to or destruction of the instrument. Do not proceed beyond a CAUTION symbol until the indicated conditions are fully understood and met.

vii

Page 9

Contents

1. Calibrating

Calibration Operation Verification Safety Before You Start

Performance Verification Test Record

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

Test equipment you will need Recording the test results If the spectrum analyzer doesn’t meet specifications

Periodically verifying operation

1. Frequency Readout Accuracy

2. Frequency Readout and Marker Count Accuracy for Option 013

3. Noise Sidebands

4. System Related Sidebands

5. Frequency Span Readout Accuracy

6. Sweep Time Accuracy

7. Scale Fidelity

8. Reference Level Accuracy

9. Absolute Amplitude Calibration and Resolution Bandwidth Switching Uncertainties

10. Calibrator Amplitude and Frequency Accuracy

11. Frequency Response

12. Other Input Related Spurious Responses

13. Spurious Response

14. Gain Compression

15. Displayed Average Noise Level

16. Residual Responses

17. Absolute Amplitude, Vernier, and Power Sweep Accuracy

18. Tracking Generator Level Flatness

19. Harmonic Spurious Outputs

20. Non-Harmonic Spurious Outputs

21. Tracking Generator Feedthrough

22. 10 MHz Reference Output Accuracy

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l-l l-l l-3 l-3 l-3 l-3 l-3 l-4

l-9 l-11 1-14 1-17 1-19 l-22 l-24 l-30

l-34 l-37

l-42 l-50 l-54 l-60

l-63

l-69

l-72

l-75 l-79 1-82 l-87 1-91 l-93

2. Specifications and Characteristics

General Specifications Frequency Specifications Amplitude Specifications

Option Specifications

Frequency Characteristics Amplitude Characteristics

Option Characteristics

Physical Characteristics Regulatory Information

Declaration of Conformity

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

Notice for Germany: Noise Declaration

HP 959OD Spectrum Analyzer

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

2-2 2-3 2-5

2-8 2-10 2-11 2-13 2-14 2-18 2-19 2-20

Contents-l

Page 10

If You Have a Problem

Calling HP Sales and Service Offices

Before calling Hewlett-Packard Check the basics

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

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

....................... 3-l

Returning the Spectrum Analyzer for Service .................

Package the spectrum analyzer for shipment ................

3-l 3-2

3-4 3-4

Contents-2

HP 85900 Spectrum Analyzer

Page 11

Figures

l-l. Frequency Readout Accuracy Test Setup l-2. Frequency Readout Accuracy Test Setup for Option 013 l-3. Noise Sidebands Test Setup

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

l-4. System Related Sidebands Test Setup 1-5. Frequency Span Accuracy Test Setup l-6. Sweep Time Accuracy Test Setup l-7. Scale Fidelity Test Setup

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

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

l-8. Reference Level Accuracy Test Setup l-9. Uncertainty Test Setup

10. LPF Characterization

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

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

l-11. Calibrator Amplitude Accuracy Test Setup 1-12. Calibrator Frequency Accuracy Test Setup 1-13. System Characterization Test Setup 1-14. Frequency Response Test Setup, 1-15. Frequency Response Test Setup, 1-16. Frequency Response Test Setup

(Option 001)

250

MHz

250

MHz, for Option 001

(~50 MHz)

1-17. Other Input Related Spurious Test Setup 1-18. Second Harmonic Distortion Test Setup, 30 MHz 1-19. Third Order Intermodulation Distortion Test Setup l-20. Gain Compression Test Setup

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

1-21. Displayed Average Noise Level Test Setup l-22. Residual Response Test Setup

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

l-23. Absolute Amplitude, Vernier, and Power Sweep Accuracy Test Setup l-24. Tracking Generator Level Flatness Test Setup l-25. Harmonic Spurious Outputs Test Setup l-26. Non-Harmonic Spurious Outputs Test Setup l-27. Tracking Generator Feedthrough Test Setup l-28. 10 MHz Reference Test Setup

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

3-l. Spectrum Analyzer Packaging Materials

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

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

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

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

.....

l-9 l-11 1-14 1-17 1-19 l-22 l-24 l-30 l-34

l-38 l-40 1-41 l-43 l-44 l-44 l-46 1-51 l-55 l-57 1-61 l-63 l-69 l-72 l-75 l-79 l-83 l-87 1-91

3-5

HP 9590D Spectrum Analyzer

Contents9

Page 12

Ylhbles

l-l. Performance Verification Tests l-2. Recommended Test Equipment l-3. Recommended Accessories l-4. Recommended Cables l-5. Frequency Readout Accuracy l-6. Frequency Readout Accuracy l-7. Frequency Span Readout Accuracy 1-8. Sweep Time Accuracy

l-9. Cumulative and Incremental Error, Log Mode l-10. Scale Fidelity, Linear Mode l-11. Reference Level Accuracy, Log Mode 1-12. Reference Level Accuracy, Linear Mode 1-13. Resolution Bandwidth Switching Uncertainty 1-14. Frequency Response Errors Worksheet 1-15. Frequency Response (~50 MHz) Worksheet 1-16. Image Responses Worksheet 1-17. Displayed Average Noise Level, 1-18. Residual Responses Above 1-19. Vernier Accuracy Worksheet l-20 Level Flatness Relative to 300 MHz Worksheet 1-21. Harmonic Spurious Responses Worksheet l-22. Fundamental Response Amplitudes Worksheet l-23. Non-Harmonic Responses Worksheet l-24. TG Feedthrough Worksheet

l-25. Performance Verification Test Record

3-l. Hewlett-Packard Sales and Service Offices

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DispIay

Line

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l-2 l-4 l-6

l-8 l-10 1-12 1-21 l-23 l-26 l-27 l-32 l-33

l-36

l-48 l-49 l-53 l-68 1-71 l-74 l-78 l-81 l-85 l-86 l-90 l-93

3-3

Contents-4

HP 8590D Spectrum Analyzer

Page 13

Calibrating

This chapter contains performance test procedures which test the electrical performance of the spectrum analyzer.

Allow the spectrum analyzer to warm up in accordance with the Temperature Stability specification in Chapter 2 before performing the tests in this chapter.

None of the test procedures involve removing the cover of the spectrum analyzer.

Calibration

Calibration verifies that the spectrum analyzer performance is within all specifications listed in Chapter 2. It is time consuming and requires extensive test equipment. Calibration consists of

all

the performance tests. See

‘Ihble

l-l for a complete listing of the performance tests.

Operation Verification

Operation verification consists of a subset of the performance tests. See Table l-l. Operation verification tests only the most critical specifications of the spectrum analyzer. These tests are recommended for incoming inspection, troubleshooting, or after repair. Operation verification requires less time and equipment than the calibration.

859013

Spectrum Analyzer

Calibrating l-l

Page 14

The following table lists the performance tests included in this chapter. Select the spectrum analyzer option being calibrated and perform the tests marked in the option column. Note that some of the tests are used for both calibration and operation verification (marked with

‘Ihble

l-l. Performance Verification Tests

Calibration for

Performance Test Name Instrument Option:

Stdl 001 010 011 013

0).

1. Frequency Readout Accuracy

2. Frequency Readout and Marker Count Accuracy for Option 013

3. Noise Sidebands

4. System Related Sidebands

5. Frequency Span Readout Accuracy

6. Sweep Time Accuracy

7. Scale Fidelity

8. Reference Level Accuracy

9. Absolute Amplitude Calibration and Resolution Bandwidth Switching Uncertainties

10. Calibrator Amplitude and Frequency Accuracy Il. Frequency Response

~2.

Other Input Related Spurious Responses

.3.

Spurious

.4.

Gain Compression

.5.

Displayed Average Noise Level

6. Residual Responses

7. Absolute Amplitude, Vernier, and Power Sweep Accuracy

8. Tracking Generator Level Flatness

9. Harmonic Spurious Outputs

10.

Non-Harmonic Spurious Outputs Il. Tracking Generator Feedthrough

:2.

10 MHz Reference Output Accuracy

Response2

000n

000nEl

;;;;; 00000

000n0

00n00 00000

b&i;

;A;;;

. . . . .

. . .

. . . . . . . . .

1 Use this column for all other options not listed in this table.

2 “Part 2: Third Order Intermodulation Distortion, 50 MHz” is not required for operation

verification.

1-2 Calibrating

859lJD Spectrum Analyzer

Page 15

Safety

Familiarize yourself with the safety symbols marked on the pulse generator, and read the general safety instructions and the symbol definitions given in the front of this manual before you begin verifying performance of the pulse generator.

Before You Start

There are four things you should do before starting a performance verification test:

n Switch the spectrum analyzer on and let it warm up in accordance with the Temperature

Stability specification in Chapter 2.

Read “Making a Measurement” in Chapter 2 of the

Guide.

n After the spectrum analyzer has warmed up as specified, perform the Self-Calibration

Procedure documented in “Improving Accuracy With Self-Calibration Routines” in Chapter

of the

HP 8590 Series Spectrum

spectrum analyzer is only specified after the spectrum analyzer calibration routines have

been run and if the spectrum analyzer is autocoupled.

n Read the rest of this section before you start any of the tests, and make a copy of the

Performance Test Record described in “Recording the Test Results.”

HP 8590 Series Spectrum

Anulyzer

User’s Guide. The performance of the

Analyzer

User’s

Test

equipment you will need

Tables l-2 through l-4 lists the recommended test equipment for the performance tests. The tables also lists recommended equipment for the spectrum analyzer adjustment procedures which are located in the

HP 85900 Spectrum Anulyzer Service Guide. Any equipment that

meets the critical specifications given in the table can be substituted for the recommended model.

Recording the test results

A performance test record is provided at the end of this chapter. Each test result is identified as a

TR Entry in the performance tests and on the performance

test record. We recommend that you make a copy of the performance test record, record the test results on the copy, and keep the copy for your calibration test record. This record could prove valuable in tracking gradual changes in test results over long periods of time.

If the spectrum analyzer doesn’t meet specifications

If the spectrum analyzer fails a test, rerun the frequency calibration and amplitude calibration routines by pressing CAL If the spectrum analyzer still fails one or more specifications, complete any remaining tests and

record all test results on a copy of the test record. Then refer to Chapter 3, “If You Have a

Problem,” for instructions on how to solve the problem.

FREQ B

AMPTD . Press CAL STORE , then repeat the verification test.

HP 8590D Spectrum Analyzer

Calibrating 1-3

Page 16

Periodically verifying operation

The spectrum analyzer requires periodic verification of operation. Under most conditions of use, you should test the spectrum analyzer at least once a year with either operation verification or the complete set of performance verification tests.

‘able

1-2. Recommended Test Equipment

Equipment

Digital Voltmeter

DVM Test Leads

Frequency Standard

Measuring Receiver

Microwave Frequency

Counter

Oscilloscope

Power Meter

Critical Specifications for

Equipment Substitution

Input Resistance: 2 10 megohms

Accuracy:

For use with HP 3456A

Frequency: 10 MHz

Timebase

Compatible with Power Sensors

Resolution: 0.01 dB Reference Accuracy: f 1.2 %

Frequency Range: 9 MHz to 7

Timebase

Bandwidth: dc to 100 MHz Vertical Scale Factor of 5 V/Div

Power Range: Calibrated in

to + 44

f10 mV

Accy

Relative Mode

Accy

relative to reference power -70

dBm,

on 100 V range

(Aging): < 1 x

(Aging): <5 x

dBm

sensor dependent

l0-g/day

GHz

lo-lo/day

and

dBm

Recommended

Model

HP 3456A

HP 34118

HP 5061B

HP 8902A

HP 5343A

HP 54501A

HP 436A

Use1

PAT

A,T

P,A

R&T

PAT

EAT

Power Sensor

Power

Sensor2

Power Sensor,

Low-Power

1 P = Performance Test, A = Adjustment, T = Troubleshooting 2 Option 001 and Option 011 Only

Frequency Range: 100 Maximum SWR:

Frequency Range: Maximum SWR:

Frequency Range: 300 MHz

Amplitude Range: -20

Maximum SWR: 1.1 (300 MHz)

1-4 Calibrating

kHz

to 1800 MHz

1.60 (100

1.20 (300

1.1 (1 MHz to 2.0

1.30 (2.0 to 2.9

MHz to 2

1.18 (600

dBm

kHz

to -70

HP 8590D Spectrum Analyzer

to 300

to 1 MHz)

GHz)

GHz

to 2.0

dBm

kHz)

GHz)

75 9

HP 8482A

HP 8483A

HP 8484A

PAT

Page 17

‘able

l-2. Recommended Test Equipment (continued)

Equipment

Signal

Generator

3pectrum

Microwave

Synthesized Sweeper

Synthesizer/Function

Generator

$nthesizer/Level

Generator

Analyzer,

Critical Specifications for

Equipment Substitution

Frequency Range: 1 MHz to 1000 MHz Amplitude Range: -35 to + 16 SSB Noise: <-120 dBc/Hz at 20

Frequency Range: 100 Relative Amplitude Accuracy:

100

kHz

to 1.8

Frequency Accuracy:

Frequency Range: 10 MHz to 1.8 Frequency Accuracy (CW): f 0.02% Leveling Modes: Internal and External Modulation Modes: AM Power Level Range:

Frequency Range: Frequency Accuracy: Waveform: Triangle

Frequency Range: 1 Amplitude Range: + 12 to -85 Flatness: f0.15 dB Attenuator Accuracy: f0.09 dB

kHz

GHz: <f1.8 dB

<flO kHz @

-35

0.1 Hz to 500 Hz

f0.02%

kHz

dBm

kHz

to 7

GHz

to + 16

to 80 MHz

dBm

offset

GHz

dBm

GHz

Recommended

Model

8640B,

Option 002

HP 8566AfB

8340AIB

HP 3325B

HP 3335A

Use’

P = Performance Test, A = Adjustment, T = Troubleshooting

HP 859OD Spectrum Analyzer

Calibrating

l-5

Page 18

Equipment

Active Probe

‘Etble

1-3. Recommended Accessories

5 Hz to 500 MHz 300

kHz

to 3

GHz

Critical Specifications for

Accessory Substitution

Recommended

Model

HP 41800A HP 85024A

Use1

Adapter

Adapter2

Adapter

Adapter*

APC 3.5 (f) to APC 3.5 (f)

BNC (f) to dual banana plug

BNC (m) to BNC (m)

BNC (m) to BNC (m), 75

BNC

(f)

to SMB (m)

BNC tee (m) (f) (f)

Type N (f) to APC 3.5 (f)

Type N (f) to APC 3.5 (m)

Type N (m) to APC 3.5 (m)

Type N (f) to BNC (f)

Type N (f) to BNC (m)

Type N (f) to BNC (m), 75

5061-5311

1251-1277

1250-0216

1250-1288

1250-1237

1250-0781

1250-1745

1250-1750

1250-1743

1250-1474

1250-1477

1250-1534

PAT

P,A,T

P,-%T

A,T

PAT

RAT

PAT

P,A,T

PAT

Adapter

Adapter2

Adapter

Adapter,

1 2

Minimum Loss

P = Performance Test, A = Adjustment, T = Troubleshooting Option 001 and Option 011 Only

Type N (m) to BNC

Type N (m) to BNC (m) (2 required)

Type N (f) to N (f)

Type N 04 to N (m)

Type N (f) to N (f), 75

Type N (f), 75 Q, to Type N (m), 50 9

SMB

(f)

to SMB (f)

SMB (m) to SMB (m)

50 to 75 Q, matching Frequency Range: dc to 2 Insertion Loss: 5.7

(f>

(4 required)

GHz

1250-1476

1250-1473

1250-1472

1250-1475

1250-1529

1250-0597

1250-0692

1250-0813

HP 11852B

P,A,T

RAT

P,A,T

PAT

EAT

C&T

A,T

P,A,T

1-6 Calibrating

HP 8590D Spectrum Analyzer

Page 19

‘Ihble

1-3. Recommended Accessories (continued)

Equipment

Attenuator, 10 dB

Attenuator,

1 dB

Step

Attenuator,

10 dB Step

Digital Current

Tracer

Directional Bridge

Logic Pulser

Critical

We N Cm to

Frequency: 300 MHz

Attenuation Range: 0 to 12 dB Frequency Range: 50 MHz Connectors: BNC female

Attenuation Range: 0 to 30 Frequency Range: 50 MHz Connectors: BNC female

Sensitivity: 1 mA to 500 mA Frequency Response: Pulse trains to 10 MHz Minimum Pulse Width: 50 ns Pulse Rise Time:

Frequency Range: 0.1 to 110 MHz Directivity: Maximum VSWR: Transmission Arm Loss: 6 dB (nominal) Coupling Arm Loss: 6 dB (nominal)

TTL

voltage and current drive levels

>40

Specifications

Accessory Substitution

<200

l.l:l

for

Recommended

Model

HP 8491A

Option 010

HP 355C

HP 355D

HP 547A

HP 8721A

HP 546A

Use1

P,A,T

P,A

P,T

Logic Clip

Low Pass Filter,

50 MHz

Low Pass Filter,

300 MHz

Power Splitter

fermination, 50

TTL

voltage and current drive levels

Cutoff Frequency: 50 MHz Rejection at 80 MHz:

Cutoff

Frequency: 300 MHz

Bandpass

at 300 MHz

jtopband Insertion Loss:

at 435 MHz

Frequency Range: 50

[nsertion 3utput Tracking:

Equivalent Output SWR: < 1.22: 1

Impedance: 50 G (nominal)

Insertion Loss:

Loss: 6 dB (nominal)

>50 dB

kHz

co.25 dB

<0.9

>40 dB

to 1.8

GHz

(2 required for Option 010)

fermination. 75

rmpedance:

75 0 (nominal)

(2 required for option 011)

P = Performance Test, A = Adjustment, T = Troubleshooting

Option 001 and Option 011 Only

HP 548A

0955-0306

0955-0455

HP 11667A

HP 908A

909E

Option 201

P,T

P,A,T

P,A

P,T

HP 8590D Spectrum Analyzer

Calibrating 1-7

Page 20

Cable

Cable2

Equipment

Table

l-4. Recommended Cables

Critical Specifications for

Cable Substitution

Type N, 183 cm (72 in)

Frequency Range: dc to 1 Length: Connectors: BNC (m) both ends

(4 required)

Frequency Range: dc to 310 MHz Length: 20 cm (9 in) Connectors: BNC (m) both ends

BNC, 75 R, 30 cm (12 in)

291

cm (36 in)

GHz

Recommended

Model

HP 11500A

10503A

HP 10502A

5062-6452

Use’

PAT

P,A,T

Cable2

Cable, Test

1 P = Performance Test, A = Adjustment, T = Troubleshooting

2 Option 001 and Option 011 Only

BNC, 75 Q, 120 cm (48 in)

Length: Connectors: SMB

291

reauired

cm (36 in)

(f)

to BNC (m)

15525-80010

85680-60093

P,A,T

A,T

l-8

Calibrating

HP 8590D Spectrum Analyzer

Page 21

1. Frequency Readout Accuracy

The frequency readout accuracy of the spectrum analyzer is tested with an input signal of known frequency.

There are no related adjustment procedures for this performance test. If the spectrum analyzer is equipped with Option 013, Counterlock, perform the performance

test “Frequency Readout and Marker Count Accuracy for Option 013” instead.

Equipment Required

Synthesized sweeper Adapter, Type N (f) to APC 3.5 (f) Cable, Type N, 183 cm (72 in)

Additional Equipment for Option 001

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75

Caution

SPECTRUM ANALYZER

---------

I I OPTION 001 ONLY’

---------I

Use only 75 0 cables, connectors, or adapters on the 75 D input of an Option 001 or damage to the input connector will occur.

SYNTHESIZED SWEEPER

NPUT 50R

TYPE N CABLE ASSEMBLY

Figure l-l. Frequency Readout Accuracy Test Setup

RF OUTPUT

ADAPTER

XY12

95900

Spectrum Analyzer

Calibrating l-9

Page 22

1. Frequency Readout Accuracy

Procedure

1. Connect the equipment as shown in Figure l-l.

2. Perform the following steps to set up the equipment:

Press INSTRUMENT PRESET on the synthesized sweeper, then set the controls as follows:

CW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MHz

POWER LEVEL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10

dBm

n Press

(j-1

on the spectrum analyzer, then wait for the preset routine to finish. Set the

spectrum analyzer by pressing the following keys:

FREQUENCY] 10

h12m

3. Set the spectrum analyzer to measure the frequency readout accuracy by pressing the following spectrum analyzer keys:

[PEAK

SEARCH)

(MKR’

MK TRACK ON OFF (ON)

IsPAN)

4. Record the MKR frequency reading in the performance test record. The reading should be within the limits shown in Table 1-5.

5. Press (SPAN) 12

IrVIHz)

on the spectrum analyzer.

6. Change to the next synthesized sweeper CW and spectrum analyzer center frequencies listed in Table 1-5.

7. Repeat steps 4 through 6 for each frequency setting listed in

‘able

1-5. Frequency Readout Accuracy

iynthesized

Sweeper Spectrum Analyzer

Frequency

(MHz) (MHz)

Frequency

Center

Min

‘lhble

1-5.

MKR Reading

(MHz)

TR Entry

(Actual)

Max

100

500

1000

1800

l-l 0 Calibrating

100

500

1000

1800

HP 8580D Spectrum Analyzer

4.9980

44.9980

94.9980

494.9980

994.9980

1794.9980

l-l 15.0020 l-2 l-3 105.0020 l-4 l-5 1005.0020 1-6

55.0020

505.0020

1805.0020

Page 23

2. Frequency Readout and Marker Count Accuracy for Option 013

This procedure is only for spectrum analyzers equipped with Option 013. The frequency readout accuracy of the spectrum analyzer is tested with an input signal of

known frequency. By using the same frequency standard for the spectrum analyzer and the

synthesized sweeper, the frequency reference error is eliminated. The related adjustment for this performance test is the “Sampler Match Adjustment.” If the spectrum analyzer is

not

equipped with Option 013, Counterlock, perform the

performance test “Frequency Readout Accuracy” instead.

Equipment Required

Synthesized sweeper Adapter, Type N (f) to APC 3.5 (m) Adapter, APC 3.5 (f) to APC 3.5 (f) Cable, Type N, 183 cm (72 in) Cable, BNC, 122 cm (48 in)

Additional Equipment for Option 001

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75

Caution

Use only 75 D cables, connectors, or adapters on the 75 62 input of an Option 001 or damage to the input connector will occur.

O”TP”l

L----

--------I* OPTION

---------I

001

ONLY

Figure 1-2. Frequency Readout Accuracy Test Setup for Option 013

HP 8580D Spectrum Analyzer

Calibrating l-l 1

XC62

Page 24

2. Frequency Readout and Marker Count Accuracy for Option 013

Procedure

This performance test consists of two parts:

Part 1: Frequency Readout Accuracy

Part 2: Marker Count Accuracy

Perform “Part 1: Frequency Readout Accuracy” before “Part 2: Marker Count Accuracy.”

Part 1: Frequency Readout Accuracy

1. Connect the equipment as shown in Figure l-2. Remember to connect the 10 MHz REF OUT of the synthesized sweeper to the EXT REF IN of the spectrum analyzer.

2. Perform the following steps to set up the equipment:

Press INSTRUMENT PRESET on the synthesized sweeper, then set the controls as follows:

1.5

CW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

POWER LEVEL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10

GHz

dBm

n Press

c-1

on the spectrum analyzer, then wait for the preset routine to finish. Set the

spectrum analyzer by pressing the following keys:

FREQUENCY_) 1..5

h2om

n Press (PEAK SEARCH) on the spectrum analyzer to measure the frequency readout accuracy. n Record the MKR frequency reading in the performance test record. The reading should be

IGHz)

within the limits shown in Table l-6.

n Change to the next spectrum analyzer span setting listed in Table l-5. n Repeat steps 3 through 5 for each spectrum analyzer span setting listed in Table l-5.

‘Ihble

l-6. Frequency Readout Accuracy

Min.

(MHz)

1.49958

MKR Reading

k’R Entr!

(Actual)

2-l

2-2 2-3

Max.

(MHz)

1.50082

1.50042

1.500032

Spectrum Analyzer

cz...-.-

“p&X,

(MHz)

20 1.49918

1.499968

l-l2 Calibrating

HP 859OD Spectrum Analyzer

Page 25

2. Frequency Readout and Marker Count Accuracy for Option 013

Part 2: Marker Count Accuracy

Perform “Part 1: Frequency Readout Accuracy” before performing this procedure.

1. Press (PRESET) on the spectrum analyzer, then wait for the preset routine to finish. Set the

spectrum analyzer to measure the marker count accuracy by pressing the following keys:

~pzT-)&~

SPAN

(EiJ

MHz

RES 3W AUTO MAN 300

(jNlKRj

More 1 of 2

CNT

MK COUNT ON OFF (ON)

RES

AUTO MAN

lOO@

2. Press [PEAK SEARCH), then wait for a count be taken (it may take several seconds).

3. Record the CNTR frequency reading as TR Entry 2-5 of the performance test record. The reading should be within the limits of 1.4999989

GHz

and 1.5000011

GHz.

4. Change the spectrum analyzer settings by pressing the following keys:

Wl(MHz) (jMKRFCTN_)

MK COUNT ON OFF (ON) More 1 of 2

CPJT RES

AUTO MAN

1OIHz)

5. Press (PEAK SEARCH), then wait for a count be taken (it may take several seconds).

6. Record the CNTR frequency reading as TR Entry 2-6 of the performance test record. The reading should be within the limits of 1.49999989

GHz

and 1.50000011

GHz.

HP 8590D Spectrum Analyzer

Calibrating 1-13

Page 26

3. Noise Sidebands

A 500 MHz CW signal is applied to the input of the spectrum analyzer. The marker functions are used to measure the amplitude of the carrier and the noise level 30

the carrier. The difference between these two measurements is compared to specification.

There are no related adjustment procedures for this performance test.

Equipment Required

Signal generator Cable, Type N, 183 cm (72 in)

Additional Equipment for Option 001

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75

kHz

above and below

Caution

Use only 75 f? cables, connectors, or adapters on the 75 D input of an Option

001 or damage to the input connector will occur.

SPECTRUM ANALYZER

--m---e--

1 I

OPTION

,--------I

001

ONLY

Figure l-3. Noise Sidebands Test Setup

SIGNAL GENERATOR

F OUTPUT

XY13

1-14 Calibrating

8590D

Spectrum Analyzer

Page 27

Procedure

1. Perform the following steps to set up the equipment:

Set the signal generator controls as follows:

3. Noise Sidebands

FREQUENCY

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

..-5OOMHz

OUTPUT LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..OFF

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF

FM COUNTER

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..ON

Connect the equipment as shown in Figure 1-3.

n Press

(‘j-1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INT

on the spectrum analyzer, then wait for the preset routine to finish. Set the

spectrum analyzer by pressing the following keys:

FREQUENCY] 500 (MHz)

b10m

2. Calculate the Noise Sideband Suppression by performing the following steps:

n Press the following spectrum analyzer keys:

[PEAK SEARCH)

C-1 m

200

TRACK OM OFF (ON)

IkHz)

Isw)l(kHz)

VID BW AUTO MAN

(MKRFCTN)

(SEEiF)

[PEAK

MK TRACK ON OFF (OFF)

SEARCH]

300

dBm

Record the MKR amplitude reading in the Noise Sideband Worksheet as the Carrier Amplitude.

HP 8590D Spectrum Analyzer

Calibrating

1-15

Page 28

3. Noise Sidebands

Press the following spectrum analyzer keys:

MARKER A 30

[MKR)

MARKER

NORMAL

Record the MKR amplitude reading in the Noise Sideband Worksheet as the Noise Sideband Level at

Press the following spectrum analyzer keys:

(PEAK SEARCH)

MARKER A -30

+30 kHz.

(kHz)

(MKR) MARKER NORMAL

Record the MKR amplitude reading in the Noise Sideband Worksheet as the Noise Sideband Level at -30

Carrier Amplitude Noise Sideband Level at + 30 Noise Sideband Level at -30 Maximum Sideband Level

Record the more positive value, either Noise Sideband Level at +30

Level at -30

kHz

from above in the Noise Sideband Worksheet as the Maximum Noise

kHz.

Noise Sideband Worksheet

Description

Measurement

dBm OT kHz dBm OT kHz

dBm

or dBmv

dBm OT

kHz

dBmv dBmv

dBmv

or Noise Sideband

Sideband Level.

Subtract the Carrier Amplitude from the Maximum Noise Sideband Level using the

equation below.

Noise Sideband Suppression = Maximum Noise Sideband

n Record the Noise Sideband Suppression in the performance test record as TR Entry 3-l.

The suppression should be

L-65 dBc.

Level -

Carrier Amplitude

The resolution bandwidth is normalized to 1 Hz as follows:

1 Hz noise-power = (noise-power in

For example, -65

dBc

in a 1

kHz

dBc) -

(10 x

log(RBW))

resolution bandwidth is normalized to -95 dBc/Hz.

l-l 6 Calibrating HP 85908 Spectrum Analyzer

Page 29

4. System Related Sidebands

A 500 MHz CW signal is applied to the input of the spectrum analyzer. The marker functions

are used to measure the amplitude of the carrier and the amplitude of any system related sidebands 30

generated line related, power supply related or local oscillator related sidebands. There are no related adjustment procedures for this performance test.

Equipment Required

Signal generator Cable, Type N, 183 cm (72 in)

Additional Equipment for Option 001

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75

kHz

above and below the carrier, System related sidebands are any internally

Caution

Use only 75 D cables, connectors, or adapters on the 75 fI input of an Option 001 or damage to the input connector will occur.

SPECTRUM ANALYZER

INPUT

5on

TYPE N CABLE ASSEMBLY

------e-e

OPTION 001 ONLY’

,--------I

Figure 1-4. System Related Sidebands Test Setup

SIGNAL GENERATOR

,’

~o@o@oo

RF OUTPUT

XY13

HP 8590D Spectrum Analyzer

Calibrating l-17

Page 30

4. System Related Sidebands

Procedure

1. Perform the following steps to set up the equipment:

Set the signal generator controls as follows:

FREQUENCY

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

OUTPUTLEVEL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..0 dBm

..500MHz

AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..OFF

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..OFF

FM COUNTER

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..ON

Connect the equipment as shown in Figure l-4.

n Press

(m)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INT

on the spectrum analyzer, then wait for the preset routine to finish. Set the

spectrum analyzer by pressing the following keys:

Set the spectrum analyzer to measure the system related sideband above the signal by performing the following steps:

(PEAK SEARCH)

(MKRFCTN)

MK TRACK OM OFF (ON)

pG-$2oo&m

VID BW AUTO MAN

kHz

300

Allow the spectrum analyzer to stabilize for approximately 1 minute. Then press the following keys:

CjFCTN)

[FREQUENCY) CF STEP AUTO NAM 130

Press

CsGL)

MK TRACK OM OFF (OFF)

and wait for the completion of the sweep. Press (PEAK SEARCH], then

MARKER A .

Press the following spectrum analyzer keys:

CFREQUENCY) m (step-w key)

Measure the system related sideband above the signal by pressing

(SGL]

on the spectrum

analyzer. Wait for the completion of a new sweep, then press (SPEAK SEARCH].

Record the Marker A Amplitude in TR Entry 3-l of the performance test record.

The Marker A Amplitude above the signal should be

Set the spectrum analyzer to measure the system related sideband below the signal by

c-65 dB.

pressing the following spectrum analyzer keys:

(step-down key)

(lJJ

(step-down key)

Measure the system related sideband below the signal by pressing

C-J.

Wait for the

completion of a new sweep, then press [PEAK SEARCH]. Record the Marker A Amplitude in TR Entry 3-2 of the performance test record. The Marker A Amplitude below the signal should be

859OD Spectrum Analyzer

l-1

8 Calibrating

c-65 dB.

Page 31

5. Frequency Span Readout Accuracy

For testing each frequency span, two sources are used to provide two precisely-spaced signals.

The spectrum analyzer marker functions are used to measure this frequency difference and the

marker reading is compared to the specification.

There are no related adjustment procedures for this performance test.

Equipment Required

Synthesized sweeper Signal generator Power splitter Adapter, Type N (m) to Type N (m) Adapter, Type N (f) to APC 3.5 (m) Cable, Type N, 183 cm (72 in) Cable, Type N, 152 cm (60 in)

Additional Equipment for Option 001

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75

Caution

SYNTHESIZED SWEEPER SPECTRUM ANALYZER

Use only 75 D cables, connectors, or adapters on the 75 Q input of an Option

001 or damage to the input connector will occur.

SIGNAL GENERATOR

POWER SPL I TTER

TYPE N CABLE ASSEMBLY

CABLE ASSEMBLY

TYPE

-------1

;.-OPTION 001

-,-------I

ONLY

Figure 1-5. Frequency Span Accuracy Test Setup

HP 8590D Spectrum Analyzer

Calibrating

l-1

Page 32

5. Frequency Span Readout Accuracy

Procedure

This performance test consists of two parts:

Part 1: Span 1800 MHz Part 2: Spans

~500

MHz

Perform “Part 1: Span 1800 MHz” before

“Part#

2: Spans

~500

MHz.”

Part 1: Span 1800 MHz

Connect the equipment as shown in Figure l-5. Note that the power splitter is used as a

1. combiner.

Press [PRESET) on the spectrum analyzer and wait for the preset to finish. Set the spectrum analyzer by pressing the following keys:

FREQUENCY]

1800 (MHz)

Press INSTRUMENT PRESET on the synthesized sweeper and set the controls as follows:

3. CW

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

POWERLEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5 dBm

On the signal generator, set the controls as follows:

FREQUENCY (LOCKED MODE). . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CWOUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..OdBm

Adjust the spectrum analyzer center frequency, if necessary, to place the lower frequency

on the second vertical graticule line (one division from the left-most graticule line).

Press

(sGL]

marker is on the left-most signal This is the “marked” signal.

900 INIHz)

..llOOMHz

. . . . . .

.200

MHz

then [PEAK SEARCH]. If necessary, continue pressing NEXT PEAK until the

Press MARKER A and continue pressing NEXT PK

RIGllT

. The marker delta should be on

the right-most signal.

Record the MKR A frequency reading in the performance test record for the corresponding TR Entry listed in

l%ble

l-7. The MKR reading should be within the limits shown.

l-20 Calibrating

HP 85900 Spectrum Analyzer

Page 33

Part 2: Spans <500 MHz

5. Frequency Span Readout Accuracy

9. Press

(j-1

on the spectrum analyzer and wait for the PRESET to finish. Set the

spectrum analyzer by pressing the following keys:

FREQUENCY] 70 (MHz)

loom

10. Press INSTRUMENT PRESET on the synthesized sweeper and set the controls as follows: CW

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

..llOMHz

POWER LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5 dBm

11. Set the signal generator controls as follows:

FREQUENCY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CW OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

..30MHz

dBm

12. If necessary, adjust the spectrum analyzer center frequency to center the two signals on

the display.

13. On the spectrum analyzer, press the following keys:

The two markers should be on the signals near the second and tenth vertical graticule lines (the first graticule line is the left-most).

14. Record the MKR A frequency reading in the performance test record for the corresponding

TR Entry listed in Table l-7. The MKR reading should be within the limits shown.

15.

On the spectrum analyzer, press

Il\nKRl,

More 1 of 2 , then MARKER ALL OFF.

16. Repeat steps 11 through 15 for the remaining span settings listed in Table l-7, setting the synthesized sweeper CW and signal generator Frequency as shown in the table.

‘Ihble

1-7. Frequency Span Readout Accuracy

Min.

77.0

MKR-A Reading

TR Entry Max.

(Actual)

I I

MHz

kHz

5-2 83.0 5-3 5-4 8.30 5-5 83.0

1554 MHz

MHz

16.60

MHz

kHz

Spectrum Analyze]

Span Setting

1800 MHz

100 MHz

20 MHz

10 MHz

100kHz 69.96 70.04

Signal Generator Sythesized Sweeper Frequency (MHz) Frequency (MHz)

200

30.0

62.0

66.0

1700

110.0

78.0

74.0 7.70

1446MHz 5-l

77.0

15.40

HP 859OD Spectrum Analyzer

Calibrating 1-21

Page 34

6. Sweep Time Accuracy

This test uses a synthesizer function generator to amplitude modulate a 500 MHz CW signal from another signal generator. The spectrum analyzer demodulates this signal in zero span to display the response in the time domain. The marker delta frequency function on the spectrum analyzer is used to read out the sweep time accuracy.

There are no related adjustment procedures for this performance test.

Equipment Required

Synthesizer/function generator Signal generator Cable, Type N, 152 cm (60 in) Cable, BNC, 120 cm (48 in)

Additional Equipment for Option 001

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75

Caution

SPECTRUM ANALYZER SYNTHESIZER

---------

OPTION

L--------l

001

Procedure

Use only 75 Q cables, connectors, or adapters on the 75 62 input of an Option

001 or damage to the input connector will occur.

INPUT 5017

ONLY

Figure 1-6. Sweep Time Accuracy Test Setup

MAIN SIGNAL

TYPE N CABLE ASSEMBLY

(

SIGNAL GENERATOR

,’

‘“I

OUTPUl

XY16

1. Set the signal generator to output a 500 MHz, -10

dBm,

CW signal. Set the AM and FM

controls to OFF.

Option 001 only: Set the output to -4

dBm.

2. Set the synthesizer function generator to output a 500 Hz, +5 signal.

3. Connect the equipment as shown in Figure l-6.

1-22 Calibrating HP 95900 Spectrum Analyzer

dBm

triangle waveform

Page 35

6. Sweep Time Accuracy

4. Press

@EEY)

on the spectrum analyzer and wait for the preset to finish. Set the controls as

follows:

ISPAN)

IkHz)

Wait for the AUTO ZOOM routine

to finish

then press the

following

spectrum

analyzer

(SPAN) ZERO SPAN

iBW)3(MHz) [AMPLITUDE_)

(SWEEP

SCALE LOG LIN (LIN)

TIMES

Adjust signal amplitude for a mid-screen display.

5. Set the signal generator AM switch to the AC position.

6. On the spectrum analyzer, press the following keys:

ITRIG)

VIDEO

Adjust the video trigger so that the spectrum analyzer is sweeping.

7. Press

@EFF).

After the completion of the sweep, press (PEAK SEARCH). If necessary, press

NEXT PEAK until the marker is on the left most signal. This is the “marked signal.”

keys:

Press MARKER A, MARKER A , then NEXT PK RIGHT until the marker A is on the eighth

signal peak. Record the marker A reading in the performance test record as indicated in

l%ble

1-8.

9. Repeat steps 6 through 8 for the remaining sweep time settings listed in

‘lhble

1-8. Sweep Time Accuracy

Spectrum Analyzer

Sweep Time Setting Generator Frequency Reading (MKR A) Reading

20 ms

100 ms

10 s

Synthesizer/Level

500 Hz 100 Hz

10 Hz

1 Hz

Minimum TR Entry Maximum

15.4 ms

77.0

770.0

7.7

6-l 16.6 ms 6-2 83.0 ms 6-3 830.0 ms

6-4 8.3

‘Ihble

l-8.

HP 95900 Spectrum Analyzer

Calibrating 1-23

Page 36

7. Scale Fidelity

A 50 MHz CW signal is applied to the INPUT 50 61 of the analyzer through two step attenuators.

The attenuators increase the effective amplitude range of the source. The amplitude of the

source is decreased in 10 amplitude difference between steps. The source’s internal attenuator is used as the reference standard. The test is performed in both log and linear amplitude scales.

The related adjustment for this performance test is “Log and Linear Amplitude Adjustment.”

Equipment Required

Synthesizer/level generator Attenuator, 1 dB step Attenuator, 10 dB step

Cable, BNC, 122 cm (48 in)

Cable, BNC, 20 cm (9 in) Adapter, Type N (m) to BNC (f) Adapter, Type BNC (m) to BNC (m)

Additional Equipment for Option 001

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75

steps and the analyzer marker functions are used to measure the

Caution

-----

, ADAPTER I

;

MINIMUM , LOSS , ADAPTER

I-----

ADAPTER

-^-------

I * OPTION 001 ONLY ,----,---I

Use only 75 62 cables, connectors, or adapters on the 75 61 input of an Option 001 or damage to the input connector will occur.

SPECTRUM ANALYZER

INPUT

Figure 1-7. Scale Fidelity Test Setup

5OfI

ATTENUATOR

SYNTHESIZER/LEVEL

GENERATOR

f’

“A;: 888 8 ;

00 E: 888 8

ATTENUATOR

ODD

8x& c3-

5orl

1-24 Calibrating

85901) Spectrum Analyzer

Page 37

Procedure

Log Scale

Set the synthesizer/level generator controls as follows:

7. Scale Fidelity

FREQUENCY

AMPLITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AMPTDINCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OUTPUT

Connect the equipment as shown in Figure l-7. Set the 10 dB step attenuator to 10

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

..50MHz

+lOdBm

..O.O5dB

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

.50 D

attenuation and the 1 dB step attenuator to 0 dB attenuation.

Option 001 only: Set the attenuation of the 10

step attenuator to 0

dB.

Connect the

minimum loss pad to the INPUT 75 9 using adapters.

Press

[PRESET]

on the spectrum analyzer, then wait for the preset routine to finish. Set the

spectrum analyzer by pressing the following keys:

FREQUENCY]

50 (MHz_)

b1om

Option 001 only: Press [AMPLITUDE), Mare

[PEAK

SEARCH)

[-FCTN)

MK TRACK ON OFF (ON)

of 2 ,

Amptd

Units , then

dl3m.

Wait for the auto zoom routine to finish, then set the resolution bandwidth and the video

bandwidth by pressing the following keys:

lewJ

RES BW AUTO MAN 3

IkHz)

VID

BW AUTO MAN 30IHz)

If necessary, adjust the 1 dB step attenuator attenuation until the MKR amplitude reads between 0

On the synthesizer/level generator, press AMPLITUDE and use the increment keys to adjust

the amplitude until the spectrum analyzer MKR amplitude reads 0

dBm

and -1

dBm.

dBm f0.05 dB.

It may be necessary to decrease the resolution of the amplitude increment of the synthesizer/level generator to 0.01

On the spectrum analyzer, press [PEAK SEARCH] then MARKER A . Set the synthesizer/level generator AMPTD INCR to 4

On the synthesizer/level generator, press AMPLITUDE, then increment down to step the

synthesizer/level generator to the next lowest nominal amplitude listed in Record the Actual MKR A amplitude reading in the performance test record as indicated in

‘Ihble

l-9. The MKR amplitude should be within the limits shown.

10.

Repeat steps 8 through 9 for the remaining synthesizer/level generator Nominal Amplitudes listed in

‘Iable

l-9.

to obtain a MKR reading of 0

dB.

dBm f0.05 dB.

‘Iable

l-9.

HP 9590D Spectrum Analyzer

Calibrating 1-25

Page 38

7. Scale Fidelity

11. For each Actual MKR A reading recorded in

Table

1-9, subtract the previous Actual MKR A reading. Add 4 dB to the number and record the result as the incremental error in the performance test record as indicated in

0.4

dB/4 dB.

‘Ihble

1-9. Cumulative and Incremental Error, Log Mode

Synthesizer/Level dB from

Generator

Nominal

Amplitude (nominal)

-2 -12

-6 -16

-10 -20

-14 -24

-18 -28

-22 -32

-26 -36

-30 -40

-34 -44

-38 -48

-42 -52

-46 -56

-50 -60

-54 -64

-68 -68

Ref Level

-4

-8

‘lkble

l-9. The incremental error should not exceed

TR Entry TR Entry

Cumulative Error

(MKR A Reading)

Min.

(dB) Actual (dB)

0 (Ref) 0 (Ref)

-4.44 7-l

-8.48 7-2

12.52

-16.56 7-4

-20.60 7-5

-24.64 7-6

-28.68 7-7

-32.72 7-8

-36.76 7-9

-40.80 7-10

-44.84

-48.88 7-12

-52.92 7-13

-56.96 7-14

-61 .OO

-65.04

-69.08 7-17

7-3

7-11

7-15

7-16

(Incrementi

Max.

(dB) TR Entry

0 VW

-3.56 7-18

-7.52 7-19

-11.48 7-20

-15.44 7-21

-19.40 7-22

-23.36 7-23

-27.32 7-24

-31.28 7-25

-35.24 7-26

-39.20 7-27

-43.16 7-28

-47.12 7-29

-51.08 7-30

-55.04 7-31

-59.00 7-32

-62.96

-66.92

Error)

(Ref)

N/A N/A

Linear Scale

12. Set the synthesizer/level generator controls as follows:

AMPLITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 10

AMPTDINCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...0.05

13. Set the 1 dB step attenuator to 0 dB attenuation.

1-26 Calibrating

HP 9590D Spectrum Analyzer

dBm

Page 39

7. Scale Fidelity

14. Press

(j-j

on the spectrum analyzer, then wait for the preset routine to finish. Set the

spectrum analyzer by pressing the following keys:

[m)

Option 001 only: Press Mare

&f&F?-gm&f&F?-gm

SPANSPAN

[

PEAK SEARCH)[PEAK SEARCH)

(jNlKR- MK TRACK

(SPAN)50m(SPAN)50m

Wait for the auto zoom routine to finish, then set the resolution bandwidth and the video

bandwidth by pressing the following keys:

RES

BW AUTO MAN 3

VID BW AUTO MAN

SCALE LOG LIN (LIN)

of 2, INPUT Z 50 R 75 R (50

MHzMHz

ON OFF (ON)

IkHz)RES

IkHz)

300

0).

15. If necessary, adjust the 1 dB step attenuator attenuation until the MKR reads approximately 223.6

mV.

It may be necessary to decrease the resolution of the amplitude

increment of the synthesizer/level generator to 0.01 dB to obtain a MKR reading of

223.6

mV f

0.4

mV.

16. On the synthesizer/level generator, press AMPLITUDE, then use the increment keys to adjust the amplitude until the spectrum analyzer MKR amplitude reads 223.6

+/-0.4

mV.

1’7.

On the spectrum analyzer, press (PEAK SEARCH],

18. Set the synthesizer/level generator amplitude increment to 3

[MKRJ,

then MK TRACK ON OFF (OFF).

dB.

19. On the synthesizer/level generator, press AMPLITUDE, then increment down to step the synthesizer/level generator to the next lowest Nominal Amplitude listed in Table l-10.

20. Record the MKR amplitude reading in the performance test record as indicated in

‘Ihble

l-10. The MKR amplitude should be within the limits shown.

21. Repeat steps 21 and 22 for the remaining synthesizer/level generator Nominal Amplitudes listed in

‘Iable

l-10.

Synthesizer/Level

Generator

Nominal Amplitude

+7 dBm +4dBm +l dBm

-2

‘able

l-10. Scale Fidelity, Linear Mode

dBm

100 0

70.7 50 105.36

35.48 72.63 25 49.46

(Ref)

151.59

0 VW

7-33 7-34 7-35 7-36

Max.

0 (Ref)

165.01

118.78

86.05

82.88

(mV)

HP 9590D Spectrum Analyzer

Calibrating 1-27

Page 40

7. Scale Fidelity

Log to Linear Switching

Set the 10 dB step attenuator to 10 dB attenuation and the 1 dB step attenuator to 0

22. attenuation.

Set the synthesizer controls as follows:

23.

FREQUENCY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AMPLITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

On the spectrum analyzer, press (PRESET), then wait for the preset routine to finish. Set the

24.

..50MHz

+6dBm

spectrum analyzer by pressing the following keys:

(EJ

300

(kHz)

On the spectrum analyzer, press the following keys:

25.

(PEAK SEARCH)

(MKRJ

(PEAK SEARCH)

Record the peak marker reading in Log mode below.

26.

MARKER +REF LVL

Log Mode Amplitude Reading-

27.

Press

C-1

More 1 of 2, Amptd Units , and

SCALE LOG

LIM

(LIN) to change the scale to linear, then press

dBm

to set the amplitude units to

dBm.

dBm

Press

(PEAK

28.

SEARCH), then record the peak marker amplitude reading in linear mode.

Linear Mode Amplitude Reading-

Subtract the Linear Mode Amplitude Reading from the Log Mode Amplitude Reading, then

29.

record this value ad the Log/Linear Error.

Log/Linear Error

If the Log/Linear Error is less than 0

30.

dB,

record this value as TR Entry 7-37 in the performance test record. The absolute value of the reading should be less than 0.25 the Log/Linear Error is greater than 0

On the spectrum analyzer, press the following keys:

31.

(--

(PEAK SEARCH]

Record the peak marker amplitude reading in linear mode.

32.

MARKER

+REF

LVL

dB,

continue with the next step.

Linear Mode Amplitude Reading-

On the spectrum analyzer, press the following keys:

33.

dB.

dBm

(AMPLITUDE)SCALE

[PEAK

SEARCH)

1-29 Calibrating

LOG LIN

(LOG)

859OD Spectrum Analyzer

Page 41

34. Record the peak marker reading in Log mode below.

7. Scale Fidelity

Log Mode Amplitude Reading

dBm

35. Subtract the Log Mode Amplitude Reading from the Linear Mode Amplitude Reading, then record this value ad the Linear/Log Error.

Linear/Log Error

36. Record the Linear/Log Error as TR Entry 7-37 in the performance test record. The absolute value of the reading should be less than 0.25

dB.

HP 95900 Spectrum Analyzer

Calibrating 1-29

Page 42

8. Reference Level Accuracy

A 50 MHz CW signal is applied to the INPUT 50 62 of the spectrum analyzer through two step attenuators. The attenuators increase the effective amplitude range of the source. The amplitude of the source is decreased in 10 functions are used to measure the amplitude difference between steps. The source’s internal attenuator is used as the reference standard. The test is performed in both log and linear amplitude scales.

steps and the spectrum analyzer marker

It is only necessary to test reference levels as low as -90

dBm

(with 10 dB attenuation) since lower reference levels are a function of the spectrum analyzer microprocessor manipulating the trace data. There is no error associated with the trace data manipulation.

The related adjustment for this procedure is “A12 Cal Attenuator Error Correction.”

Equipment Required

Synthesizer/level generator Attenuator, 1 dB steps Attenuator, 10 dB steps Cable, BNC 122 cm (48 in) (two

required)

Adapter, Type N (m) to BNC (f) Adapter, BNC (m) to BNC (m)

Additional Equipment for Option 001

Adapter, minimum loss Adapter, Type N (f) to BNC (m) 75

Caution

Use only 75 9 cables, connectors, or adapters on the 75 51 input of an Option 001 or damage to the input connector will occur.

SPECTRUM ANALYZER

-----

;

ADAPTER

;

MINIMUM , LOSS , ADAPTER

I-----.

ADAPTER

---------

I* OPTlON cl01 L.--------I

INPUT

ONLY

50*

ATTENUATOR

Figure 1-8. Reference Level Accuracy Test Setup

l-30 Calibrating

I(’

ATTENUATOR

HP 9590D Spectrum Analyzer

SYNTHESIZER/LEVEL

GENERATOR

Page 43

Procedure

Log Scale

Set the synthesizer/level generator controls as follows:

8. Reference Level Accuracy

FREQUENCY

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

..50MHz

AMPLITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10 dBm

AMPTDINCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10dB

OUTPUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connect the equipment as shown in Figure 1-8. Set the 10 dB step attenuator to 10 attenuation and the 1 dB step attenuator to 0 dB attenuation.

Option 001 only: Connect the minimum loss adapter to the RF input 75

hl,

using adapters,

and set the 10 dB step attenuator to 0 dB attenuation. Press

[PRESET]

on the spectrum analyzer, then wait for the preset routine to finish. Set the

spectrum analyzer by pressing the following keys:

FREQUENCY] 50

&lOW

[PEAK SEARCH)

(m-

(SPAN) 50

Option001 only:

CAMPLITUDE)

iBW)3IkHz_)

VID BW AUTO MAN

IhnHz)

MK TRACK ON OFF (ON)

[kHz)

PressCAMPLITUDEj,

-2Om

SCALE LOG LIN

300

1 of 2, Amptd Units, then

dBm.

(LOG)l@J

.50 fl

Set the 1 dB step attenuator to place the signal peak one to two dB (one to two divisions)

below the reference level.

On the spectrum analyzer, press the following keys:

(SGL-

[PEAK SEARCH] MARKER

Set the synthesizer/level generator amplitude and spectrum analyzer reference level

according to Table l-11. At each setting, press Record the MKR A amplitude reading in the performance test record as indicated in

‘Ihble

l-l 1. The MKR A reading should be within the limits shown.

(sGLSWPI)

on the spectrum analyzer.

HP 9590D Spectrum Analyzer

Calibrating 1-31

Page 44

8. Reference Level Accuracy

‘l’hble

l-l 1. Reference Level Accuracy, Log Mode

Synthesizer/Level

knerator

Amplitude Reference Level

Wm)

-10 -20 0 0

+ 10 0

-20 -30 -0.4

-30 -40 -0.5

-40 -50 -0.8

-50 -60 -1.0

-60 -70 -1.1

-70 -80 -1.2

-80 -90 -1.3

Spectrum Analyzer

Pm)

-10 -0.4

Linear Scale

8. Set the synthesizer/level generator amplitude to -10

MKR A Reading (dB)

TR Entry Max.

Min.

(Ref)

-0.5

O(Ref) 0 (Ref)

8-1

8-2 8-3 8-4 8-5 8-6 8-7 8-8 8-9

dBm.

+0.4

+ 0.5 + 0.4

+0.5 +0.8

+ 1.0 + 1.1

+1.2 +1.3

9. Set the 1 dB step attenuator to 0 dB attenuation,

10. Set the spectrum analyzer controls as follows:

(AMPLITUDE] -20

SCALE LOG LIN (LIN)

CAMPLITUDE)

of 2 Amptd Units

dBm

@EEF-- SWEEP CONT SGL (CONT)

INIKR) More I

2 MARKER

ALL OFF

11. Set the 1 dB step attenuator to place the signal peak one to two divisions below the reference level.

12. On the spectrum analyzer, press the following keys:

[PEAK

SEARCH]

(mFCTNI)

MARKER n

MK TRACK ON OFF (OFF)

13. Set the synthesizer/level generator amplitude and spectrum analyzer reference level according to Table 1-12. At each setting, press

14. Record the MKR A amplitude reading in

‘lhble

CsGLSWPI)

on the spectrum analyzer.

1-12. The MKR A reading should be within

the limits shown.

1-32 Calibrating HP 95900 Spectrum Analyzer

Page 45

‘able

1-12. Reference Level Accuracy, Linear Mode

8. Reference Level Accuracy

Synthesizer/Level

knerator Amplitude

-10 0

-20

-30

-40

-50

-60

-70

-80

Spectrum Analyzer

Reference Level

(dBm)

-20

-10 0

-30

-40 -0.5

-50

-60

-70 -1.1

-80

-90

MKR A Reading (dR)

Min.

TR Entry Max.

0 Wfl

-0.4

-0.5

-0.4

-0.8

-1.0

-1.2

-1.3

0 (Ref)

S-10

8-11 8-12 8-13 8-14 8-15

8-16

8-17 8-18

0 (Ref)

+0.4 +0.5 +0.4 +

0.5

0.8

+l.O

+l.l

+1.2 +1.3

HP 859OD Spectrum Analyzer

Calibrating 1-33

Page 46

9. Absolute Amplitude Calibration and Resolution Bandwidth Switching Uncertainties

To measure the absolute amplitude calibration uncertainty the input signal is measured after the

self-Cal

To measure the resolution bandwidth switching uncertainty an amplitude reference is taken with the resolution bandwidth set to 3 bandwidth is changed to settings between 3 MHz and 1 measured at each setting and compared to the specification. The span is changed as necessary to maintain approximately the same aspect ratio.

The related adjustment procedure for this performance test is “Crystal and LC Bandwidth Adjustment.

Equipment Required

Cable, BNC, 23 cm (9 in) Adapter, Type N (m) to BNC (f)

Additional Equipment for Option 001

Cable, BNC, 75 0, 30 cm (12 in)

routine is finished.

”

kHz

using the marker-delta function. The resolution

kHz

and the amplitude variation is

Caution

Use only 75 61 cables, connectors, or adapters on the 75 Q input of an Option 001 or damage to the input connector will occur.

SPECTRUM ANALYZER

ADAPTER

Figure 1-9. Uncertainty Test Setup

XYliO

1-34 Calibrating

8590D

Spectrum Analyzer

Page 47

9. Absolute Amplitude Calibration and Resolution Bandwidth Switching Uncertainties

Procedure

Connect the CAL OUT to the spectrum analyzer input using the BNC cable and adapter, as shown in Figure l-9.

Option 001 only: Use the 75

Press

[PRESET]

on the spectrum analyzer, then wait for the preset routine to finish. Set the

cable and omit the adapter.

spectrum analyzer controls by pressing the following keys:

(SPAN)10-

@EAK

SEARCH]

[MKR) MK

VID BW AUTO MAN

Option 001 only: Press [AMPLITUDE], More I of 2 , Amptd Units , then

Press (PEAK SEARCH], then record the marker reading in TR Entry 9-l of the performance test

TRACK ON OFF (ON)

300(%J

clBm

record. The marker reading should be within -20.15 and -19.85

Press

c-1

on the spectrum analyzer, then wait for the preset routine to finish. Set the

dB.

spectrum analyzer controls by pressing the following keys:

(j”I’KRFCTNI)

Option 001 only: Press [AMPLITUDE], More 1 of 2 , Amptd Units , then

m ~AMPLITUDE)

SCALE LOG LIN (LOG) 1

(BW)3(kHz)

VID BW AUTO MAN 1

Press

Cm)

MK TRACK ON OFF (ON)

-20

(dB)

(kHz)

and use the knob to adjust the reference level until the signal appears one

dBm

division below the reference level, then press the following keys:

(PEAK SEARCH)

(NlKR]

Set the spectrum analyzer resolution bandwidth and span according to

Press [PEAK SEARCH), then record the MKR A TRK amplitude reading in the performance test

record as indicated in

MARKER

MK TRACK ON OFF (OFF)

‘lhble

1-13.

Table

1-13.

The amplitude reading should be within the limits shown. Repeat steps 6 through 7 for each of the remaining resolution bandwidth and span settings

listed in

Table

1-13.

HP 8590D Spectrum Analyzer

Calibrating 1-35

Page 48

9. Absolute Amplitude Calibration and Resolution Bandwidth Switching Uncertainties

‘Ihble

1-13. Resolution Bandwidth Switching Uncertainty

Spectrum

RES BW Setting; !

kHz

1 kHz 9

kHz

100 kHz 120 kHz

300

kHz

1 MHz

3 MHz

Analvzer

JPAN

Setting

50 50

500

500 500

5 MHz

10 MHz 10 MHz

kHz kHz kHz kHz

kHz kHz kHz

-L

MKR A TRK Amplitude Reading Min.

(dB)

l’R

Entry

0 (Ref)

-0.5

-0.4

-0.4 9-5

-0.4

-0.4 B-10

0 (Ref)

9-2 9-3 9-4

9-6 9-7

9-8

9-9

Max.

0 (Ref)

+0.5 +0.4 +0.4 +0.4 +0.4 +0.4 +0.4 +0.4 +0.4

(dB)

l-36

Calibrating HP

8590D

Spectrum Analyzer

Page 49

10. Calibrator Amplitude and Frequency Accuracy

This test measures the accuracy of the spectrum analyzer CAL OUT signal. The first part of

the test characterizes the insertion loss of a Low Pass Filter (LPF) and 10 harmonics of the CAL OUT signal are suppressed with the LPF before the amplitude accuracy is measured using a power meter. A frequency counter is used to measure the frequency accuracy of the CAL OUT signal and the measured frequency is compared to the specification.

The related adjustments for this procedure are:

Calibrator Amplitude Adjustment Third Converter, 600 MHz Frequency Adjustment

Equipment Required

Microwave frequency counter Low pass filter, 300 MHz Synthesized sweeper Measuring receiver (used as a power meter) Power meter Low power sensor with a 50 MHz reference attenuator Power sensor Power splitter

10 dB attenuator, Type N (m to f), dc-12.4 Cable, BNC, 121 cm (48 in) Cable, Type N, 152 cm (60 in) Adapter, APC 3.5 (f) to Type N (f) Adapter, Type N (f) to BNC (m) (2 required) Adapter, Type N (m) to BNC (f)

GHz

Option 010

attenuator. The

Additional Equipment for Option 001

Cable, BNC, 75 Adapter, Type N (f) to Type N (f), 75 Adapter, minimum loss Adapter, mechanical, 75 Q to 50 Adapter, Type N (f) 75 62 to BNC (m) 75

HP 859lJD Spectrum Analyzer

Calibrating 1-37

Page 50

10. Calibrator Amplitude and Frequency Accuracy

Caution

SYNTHESIZED SWEEPER

Use only 75 0 cables, connectors, or adapters on the 75 D input of an Option 001 or damage to the input connector will occur.

MEASURING RECEIVER

POWER METFD

m&OR

RF OUTPUT

TYPE N CABLE

10dB

ATTENUATOR

LOW PASS

FILTER

XYlll

OPTION

001

ONLY

POWER SENSOR

___------

MECHANICAL

. . . . . . . . . .

ADAPTER

e------m-

MINIMUM LOSS

ADAPTER

LOW PASS

F I LTER

Figure l-10. LPF Characterization

. . . . . . .

1-38 Calibrating

8590D

Spectrum Analyzer

Page 51

10. Calibrator Amplitude and Frequency Accuracy

Procedure

Part 1: LPF, Attenuator, and Adapter Insertion Loss Characterization

1. Zero and calibrate the measuring receiver and power sensor in LOG mode as described in the measuring receiver operation manual.

Caution

Do not attempt to calibrate the low power sensor without the reference attenuator or damage to the low power sensor will occur.

2. Zero and calibrate the power meter and the low power sensor, as described in the power meter operation manual.

3. Press INSTRUMENT PRESET on the synthesized sweeper. Set the controls as follows:

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

..300MHz

POWER LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15 dBm

4. Connect the equipment as shown in Figure l-10. Connect the low power sensor directly to the power splitter (bypass the LPF, attenuator, and adapters). Allow the power sensors to settle before proceeding.

5. On the measuring receiver, press RATIO mode. Power indication should be 0

6. On the power meter, press the dB REF mode key. Power indication should be 0

dB.

7. Connect the LPF, attenuator and adapters as shown in Figure l-10.

8. Record the measuring receiver reading in

dB.

This is the relative error due to mismatch.

Mismatch Error

9. Record the power meter reading in

dB.

This is the relative uncorrected insertion loss of the

LPF, attenuator, and adapters.

Uncorrected Insertion Loss

10. Subtract the Mismatch Error (step 8) from the Uncorrected Insertion Loss (step 9). This is the Corrected Insertion Loss.

Corrected Insertion Loss

Example: If the Mismatch Error is

+0.3 dB

and the Uncorrected Insertion Loss is -10.2

subtract the mismatch error from the insertion loss to yield a corrected reading of

-10.5

dB.

HP 85900 Spectrum Analyzer

Calibrating 1-39

dB,

Page 52

10. Calibrator Amplitude and Frequency Accuracy

Part 2: Calibrator Amplitude Accuracy

Caution

,_ . . . . . . . .

~OPTION 001

Use only 75 62 cables, connectors, or adapters on the 75 62 input of an Option 001 or damage to the input connector will occur.

SPECTRUM ANALYZER

ONLY

;

A----

ADAPTER

ATTENUATOR

LOW PASS

Figure l-11. Calibrator Amplitude Accuracy Test Setup

POWER METER

OUTPUT

XYli2

11. Connect the equipment as shown in Figure l-l 1. The spectrum analyzer should be positioned so that the setup of the adapters, LPF, and attenuator do not bind. It may be necessary to support the center of gravity of the devices.

12. On the power meter, press the

dBm

mode key. Record the power meter Reading in

Power Meter Reading

dBm.

dBm

l-40 Calibrating

HP 859OD Spectrum Analyzer

Page 53

10. Calibrator Amplitude and Frequency Accuracy

13. Subtract the Corrected Insertion Loss (step 10) from the power meter Reading (step 12) and record this value as TR Entry 10-l in the performance test record. The CAL OUT should be

-20

dBm

f0.4

dB.

CAL OUT Power = Power Meter Reading - Corrected Insertion Loss

Example: If the Corrected Insertion Loss is -10.0

is -30

Option 001 only:

50 D instruments. To convert from

dB,

then -30 dB - (-10.0

The CAL OUT power measured on 75 62 instruments will be the same as

dB)

dBm

= -20

dBmV

dB,

and the measuring receiver reading

use the following equation. Record this

value as TR Entry 10-l in the performance test record.

dBmV

dBm

+ 48.75

Example: -20 + 48.75 = 28.75.

CAL OUT Power

Skip Part 3 if your spectrum analyzer is equipped with Option 013 and do performance test number 22 “10 MHz Reference Output Accuracy” instead.

Part 3: Calibrator Frequency Accuracy

SPECTRUM ANALYZER

FREQUENCY COUNTER

dBmV

CAL OUT

Figure 1-12. Calibrator Frequency Accuracy Test Setup

lOti-500MHz

INPUT

14. Connect the equipment as shown in Figure 1-12.

Option 001 only: Use a 75

cable instead of a 50 62 cable.

15. Set the frequency counter controls as follows: SAMPLERATE

50f?/lM DSWITCH

10 Hz-500 MHz/500 MHz-26.5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Midrange

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5061

GHz

SWITCH

. . . . . . . . . . . . . . . . . . . . . 10 Hz-500 MHz

16. Wait for the frequency counter to settle. This may take two or three gate times.

17. Read the frequency counter display. Record this value as TR Entry

10-2

in the performance

test record.

HP 859OD Spectrum Analyzer

Calibrating 1-41

XY113

Page 54

11. Frequency Response

The output of the synthesized sweeper is fed through a power splitter to a power sensor and the spectrum analyzer. The synthesized sweeper’s power level is adjusted at 300 MHz to place the displayed signal at the spectrum analyzer center horizontal graticule line. The measuring receiver, used as a power meter, is placed in RATIO mode. At each new sweeper frequency and spectrum analyzer center frequency setting, the sweeper’s power level is adjusted to place the signal at the center horizontal graticule line. The measuring receiver displays the inverse of the frequency response relative to 300 MHz (CAL OUT frequency).

Testing the flatness of Option 001, INPUT 75

61,

is accomplished by first characterizing the

system flatness. The related adjustment for this procedure is the “Frequency Response Error Correction.”

Equipment Required

Synthesized sweeper Measuring receiver (used as a power meter) Synthesizer/level generator

Power sensor

Power splitter Adapter, Type N (f) to APC 3.5 (f) Adapter, Type N (m) to Type N (m) Cable, BNC, 122 cm (48 in) Cable, Type N, 183 cm (72 in)

Additional Equipment for Option 001

Power meter Power sensor Adapter, Type N (f) 75 Adapter, Type N (m) to BNC (m), 75 Cable, BNC, 120 cm (48 in) 75

to Type N (m) 50

1-42 Calibrating

HP 859OD Spectrum Analyzer

Page 55

11. Frequency Response

System Characterization Procedure for Option 001

SYNTHESIZED SWEEPER

TYPE N CABLE ASSY

Figure 1-13. System Characterization Test Setup (Option 001)

‘APTER

POWER METER

MECHANICAL

XY114

1. Zero and calibrate the measuring receiver and the power sensor as described in the measuring receiver operation manual.

2. Zero and calibrate the power meter and the power sensor as described in the power meter operation manual.

3. Press INSTRUMENT PRESET on the synthesized sweeper then set the controls as follows:

CW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FREQSTEP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.50

MHz

..50MHz

POWERLEVEL.........................................................5dBm

4. Connect the equipment as shown in Figure 1-13.

5. Adjust the synthesized sweeper power level for a 0

6. Record the power meter reading in Column 4 of

dBm

reading on the measuring receiver.

‘Iable

1-14, taking into account the Cal

Factors of both the power sensors.

7. On the synthesized sweeper, press

Icw),

and

(step-up key), to step through the remaining frequencies listed in Table 1-14. At each new frequency repeat steps 5 and 6, entering each power sensor’s Cal Factor into the respective power meter.

HP 85900 Spectrum Analyzer

Calibrating

1-43

Page 56

11. Frequency Response

Caution

SYNTHESIZED SWEEPER

Use only 75 61 cables, connectors, or adapters on the 75 61 input of an Option 001 or damage to the input connector will occur.

RF OUTPUT

ADAPTER

MEASURING RECEIVER

POWER SENSOR

SPECTRUM ANALYZER

ADAPTER

TYPE N CABLE ASSY

Figure 1-14. Frequency Response Test Setup,

250

MHz

SYNTHESIZED SWEEPER

RF OUTPUT

SPECTRUM ANALYZER

ADAPTER

TYPE

N CABLE ASSY

Figure 1-15. Frequency Response Test Setup,

POWER SENSOR

MECHANICAL

ADAPTER

250

MHz, for Option 001

Procedure

1. Zero and calibrate the measuring receiver and the power sensor in log mode as described in the measuring receiver operation manual.

2. Connect the equipment as shown in Figure 1-14.

ADAPTER

Option

1-44 Calibrating HP 8590D Spectrum Analyzer

001

only: Refer to Figure l-15.

Page 57

11. Frequency Response

3. Press INSTRUMENT PRESET on the synthesized sweeper and set the controls as follows:

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

FREQSTEP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.300

MHz

..50MHz

POWERLEVEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8 dBm

4. On the spectrum analyzer, press

[PRESETI)

and wait for the preset to finish. Set the spectrum

analyzer controls as follows:

(FREQUENCY) 300

CF STEP AUTO MAN

LhnHz)

50LNIHz)

ISPAN) 1oIhnHz)

(Option

(.jmmEg

SCALE LOG LIN (LOG) 1

001 on&:

Press

cm’,

10 (-dem)

(XJ

More i of 2, Amptd Units , then

dBm

(BW)l[MHz)

VI5 3W AUTO #AN 3

On the spectrum analyzer, press (PEAK SEARCH],

IkHz)

(MKR),

then MK TRACK ON OFF (ON).

6. Adjust the synthesized sweeper power level for a MKR-TRK amplitude

reading of -14

7. Set the sensor Cal Factor on the measuring receiver and then press

dBm f0.05 dB.

8. Set the synthesized sweeper CW to 50 MHz.

Set the spectrum analyzer Center

frequency

MHz by

pressing’(FREQUENCY) 50

(MHz).

10. Adjust the synthesized sweeper power level for a spectrum analyzer MKR-TRK amplitude reading of -14

dBm f0.05 dB.

11. Set the sensor Cal Factor on the measuring receiver and record the negative of the power ratio here and in

‘lhble

1-14.

Negative of Measuring Receiver Reading at 50 MHz

12. Set the synthesized sweeper CW to 100 MHz.

13. Set the spectrum analyzer center frequency to 100 MHz by pressing [FREQUENCY) 100 (MHz).

14. Adjust the synthesized sweeper power level for a spectrum analyzer MKR-TRK amplitude reading of -14

dBm

f0.05

dB.

15. Set the sensor Cal Factor on the measuring receiver and record the negative of the power ratio displayed on the measuring receiver in

16. On the synthesized sweeper, press analyzer, press frequencies listed in

I-],

Table

and a (step-up key), to step through the remaining

1-14. At each new frequency repeat steps 14 through 16,

Icw),

and

‘lhble

1-14 as the Error Relative to 300 MHz.

(step-up key), and on the spectrum

entering the power sensor’s Cal Factor into the measuring receiver as indicated in

Table

1-14.

HP 8590D Spectrum Analyzer

Calibrating 1-45

Page 58

11. Frequency Response

Frequency Response,

SYNTHESIZER/LEVEL

GENERATOR

Figure 1-16. Frequency Response Test Setup (~50 MHz)

17.

Using a cable, connect the synthesizer/level generator directly to the INPUT 50 9. Refer to

(150

MHz)

SPECTRUM ANALYZER

Figure 1-16.

Option

001

only: Using a 75

cable, connect the synthesizer/level generator from the 75

OUTPUT to the INPUT 75 Q and set the 50-75 n switch to the 75 61 position. Set the synthesizer/level generator controls as follows:

FREQUENCY

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

..50MHz

AMPLITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15dBm

AMPTD INCR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.0.05

18.

On the spectrum analyzer press the following keys:

(SPAN)

(FREQUENCY)

(PEAK SEARCH)

(jjFCTN)

(SPAN) 100

10INIHz)

50 [MHz)

MK TRACK ON OFF (ON)

(kHz)

Wait for AUTO ZOOM to finish, then press the following spectrum analyzer keys:

lsw)3(kHz)

VIII BW AUTO MAN 1

19.

Adjust the synthesizer/level generator Amplitude until the MKR-TRK reads -14

(kHz)

corresponds to the amplitude at 50 MHz recorded in step 11. Record the synthesizer/level

generator amplitude below.

Amplitude Setting (50 MHz)

20.

On the spectrum analyzer, press MARKER A ,

21.

Set the synthesizer/level generator frequency to 20 MHz.

22.

On the spectrum analyzer, press the following keys:

(FREQUENCY)

CF STEP AUTO MAN

(FREQUENCY)

(-J-J

(step-down key)

3OIrvlHz)

t-1,

then MK TRACK ON OFF (ON).

dBm.

This

dBm

l-46 Calibrating HP 9590D Spectrum Analyzer

Page 59

11. Frequency Response

23. Adjust the synthesizer/level generator amplitude for a MKR A-TRK amplitude reading of

0.00 ±0.05

dB.

Record this amplitude setting in

‘Ihble

1-15 in Column 2 at 20 MHz.

24. Repeat steps 21 through 23 for each of the frequencies listed in Table 1-15. Change the spectrum analyzers’s center frequency step size to the relative frequency change for each new frequency (for example, use 10 MHz CF STEP size when changing from 20 MHz to

10 MHz).

Option 001 only:

When measuring the 50

Do not test below 1 MHz.

kHz

center-frequency flatness and below, there will be two signals on screen, the LO feedthrough and the signal from the synthesizer/level generator. Ensure that the marker is on the signal from the synthesizer/level generator (to the right of the LO feed through).

25. For each of the frequencies in

‘Ihble

1-15, subtract the synthesizer/level generator Amplitude Reading (column 2) from the synthesizer/level generator Amplitude setting (50 MHz) recorded in step 19. Record the result as the Response Relative to 50 MHz (column 3) in

26. Add to each of the Response Relative to 50 MHz entries in

‘lhble

1-15.

Table

1-15 the measuring receiver Reading at 50 MHz recorded in step 11. Record the results as the Response Relative to 300 MHz (column 4) in Table 1-15.

27. Option 001 only: Starting with the error at 50 MHz, subtract Column 4 (System Error) to

Column 2 (Error Relative to 300 MHz) and record the result in Column 5 (Corrected Error Relative to 300 MHz).

Test

Results

Perform the following steps to verify the frequency response of the spectrum analyzer.

1. Enter the most positive number from

2. Enter the most positive number from

(Option 001 only:

Use column 5.)

‘fable

1-15, column 4:

Table

1-14, column 2:

dB dB

3. Record the more positive of numbers from steps 1 and 2 in TR Entry 11-l of the performance test record.

4. Enter the most negative number from Table 1-15, column 4:

5. Enter the most negative number from

(Option

001

only: Use column 5.)

Table

1-14, column 2:

6. Record the more negative of numbers from steps 4 and 5 in TR Entry 1 l-2 of the performance test record.

7. Subtract the results of step 6 from the results of step 3. Record this value in TR Entry 11-3 of the performance test record.

The result should be less than 2.0 The absolute values in steps 3 and 6 should be less than 1.5

dB.

HP 8590D Spectrum Analyzer

Calibrating 1-47

dB dB

Page 60

11. Frequency ‘Response

‘Ihble

1-14. Frequency Response Errors Worksheet

Column 1

Frequency

(MHz)

50 100 150 200

250

300

(Ref)

350 400 450 500 550 600 650 700 750 800 850 900 950

1000 1050 1100 1150 1200 1250 1300 1350

Column 2

Error

Relative

to 300 MHz

c01llmn

Sensor

CAL FACTOR

Frequency (GHz)

0.03

0.1

0.3

1.0

c01unln

System

Error

C&mln

(option

Corrected Error

Relative to

300 MHz

001)

(dR)

1-48 Calibrating

HP 8590D Spectrum Analyzer

Page 61

‘I&ble

1-14. Frequency Response Errors Worksheet (continued)

11. Frequency Response

column

Frequent

(MHz)

1400 1450 1500 1550 1600 1650 1700 1750 1800

‘Ihble

column

Error

Relative

to 300 MHz

c01llmn

Sensor

CAL FACTOR

Frequent y

1.0

(GHz)

Column 4

System

Error

Colllmn

(Option 001)

Corrected Errol

Relative to

300 MHz

(dB)

2.0

1-15. Frequency Response (~50 MHz) Worksheet

Column 1

Frequency

50 MHz 20 MHz

10 MHz

5 MHz

1 MHz

200

kHz

column

Synthesizer/Level Response Response

Generator Amplitude Relative Relative

2 Column 3 Column 4

@ml

to 50 MHz to 300 MHz

0 (Reference)

HP 859OD Spectrum Analyzer

Calibrating 1-49

Page 62

12. Other Input Related Spurious Responses

A synthesized source and the spectrum analyzer are set to the same frequency and the amplitude of the source is set to -10 analyzer. The source is then tuned to several different frequencies which should generate image responses. At each source frequency, the source amplitude is set to -10 amplitude of the response, if any, is measured using the spectrum analyzer marker function. The marker-amplitude difference is then compared to the specification.

There are no related adjustment procedures for this performance test.

Equipment Required

Synthesized sweeper Measuring receiver (used as a power meter) Power sensor Adapter, Type N (f) to APC 3.5 (f) Adapter, Type N (f) to Type N (f) Cable, Type N, 183 cm (72 in)

Additional Equipment for Option 001

Power sensor

Adapter, minimum loss

Adapter, Type N (f) to BNC (m), 75

Adapter, Type N (f) to Type N (f)

dBm.

A marker-amplitude reference is set on the

dBm

and the

l-50 Calibrating

HP 859OD Spectrum Analyzer

Page 63

12. Other Input Related Spurious Responses

Caution

SPECTRUM ANALYZER

Use only 75 cables, connectors, or adapters on the 75 62 input of an Option 001 or damage to the input connector will occur.

SYNTHESIZED SWEEPER

TYPE N CABLE

I I

’ *

ADAPTER

MINIMUM LOSS

I I

;

MEASURING RECEIVER

POWER SENSOR

’

MINIMUM ADAPTER I

;

ADAPTER

LOSS

------------

ADAPTER

I I I

-----------

OPT ION 001 ONLY

------------d

;

XY118

Figure 1-17. Other Input Related Spurious Test Setup

Procedure

1. Zero and calibrate the measuring receiver and the power sensor in log mode so that power is read out in receiver.

Option 001 only:

2. Press INSTRUMENT PRESET on the synthesized sweeper and set the controls as follows: CW

POWER LEVEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10

Option 001 only:

3. Connect the equipment as shown in Figure l-17. Connect the output of the synthesizer to

the power sensor using adapters.

Option

power sensor.

4. Adjust the synthesized sweeper power level for a -10

measuring receiver.

dBm.

Enter the power sensor’s 542.8 MHz Cal Factor into the measuring

Use 75 61 power sensor.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542.8 MHz

dBm

POWER LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -14.3

001

only: Use the minimum loss adapter and 75

adapter to connect to the 75

dBm *O.

1 dB reading on the

dBm

5. On the synthesized sweeper, press SAVE 1.

6. Enter the power sensor’s Cal Factor for 1142.8 MHz into the measuring receiver.

7. Set the CW frequency on the synthesized sweeper to 1142.8 MHz.

HP 859OD Spectrum Analyzer

Calibrating

l-51

Page 64

12.

Other Input Related Spurious Responses

Adjust the synthesized sweeper power level for a - 10

dBm fO.1 dB

reading on the

measuring receiver.

On the synthesized sweeper, press SAVE 2.

10.

Enter the power sensor’s Cal Factor for 500 MHz into the measuring receiver.

11.

Set the CW frequency on the synthesized sweeper to 500 MHz.

12.

Adjust the synthesized sweeper power level for a - 10

dBm fO.1 dB

reading on the

measuring receiver.

13.

Connect the synthesized sweeper to the RF INPUT of the spectrum analyzer using the appropriate cable and adapters.

Option 001 only: Use the minimum loss adapter and 75

14.

On the spectrum analyzer, press

(j-1

and wait for the preset to finish then set the

adapter as shown in Figure 1-17.

controls as follows:

FREQUENCY) 500

hlO@

(AMPLITUDE) 0

0ption 001 only: Press (AMPLITUDE], More 1 of 2, Amptd Units, then

15.

On the spectrum analyzer, press the following keys:

(PEAK SEARCH)

(jMKR-

(-dBm)

MK TRACK ON OFF (ON)

dBm

=200(kHz)

Wait for the AUTO ZOOM message to disappear. Press the following spectrum analyzer keys:

[PEAK SEARCH)

(jj] (MKR]

(PEAK

AMPLITUDE]

MARKER ->

REF

LVL

MK TRACK OM OFF (OFF)

SEARCH)

MARKER A

(iJJ

(step-down key).

&Em-)

For each of the frequencies listed in

16.

‘Ruble

1-16, do the following:

a. Set the synthesized sweeper to the listed CW frequency by pressing RECALL 1 for a CW

frequency of 542.8 MHz or RECALL 2 for a CW frequency of 1148.8 MHz.

b. Press

[SGL)

and wait for the completion of a new sweep.

c. On the spectrum analyzer, press (PEAK SEARCH) and record the marker-delta amplitude

reading in

‘Iable

1-16 as the Actual MKR

AAmplitude.

The Actual MKR A Amplitude should be less than the Maximum MKR A Amplitude listed in the table below.

The Maximum MKR A Amplitude is 10 dB more positive than the specification. This is due to the 10 dB change in reference level made in step 15.

8590D

l-52

Calibrating

Spectrum Analyzer

Page 65

‘I&ble

1-16. Image Responses Worksheet

Synthesized Sweeper

CW Frequency

12. Other Input Related Spurious Responses

Actual MKR A Maximum MKR

Amplitude

(d&z)

Amplitude

(dBc)

542.8 MHz

1142.8 MHz

17. Record the Maximum MKR A Amplitude from

lhble

performance test record.

-55

1-16 as TR Entry 12-1 in the

HP 859OD Spectrum Analyzer

Calibrating 1-53

Page 66

13. Spurious Response

This test is performed in two parts. The first part measures second-harmonic distortion; the second part measures third-order intermodulation distortion.

To test second harmonic distortion, a 50 MHz low-pass filter is used to filter the source output, ensuring that harmonics read by the spectrum analyzer are internally generated and not coming from the source. To measure the distortion products, the power at the mixer is set 25

higher than specified. New test limits have been developed based on this higher power.

With -45 equivalent Second Order Intercept

dBm

+25 dBm

dBm

at the input mixer and the distortion products suppressed by 70

(SOI)

+25 dBm

(-45

dBm

at the mixer, and the distortion products suppressed by 45

(-20

dBm

+ 45

dBc).

dBc,

+ 70

dBc,

dBc).

Therefore, with -20

the equivalent SO1 is also

the

For third order intermodulation distortion, two signals are combined in a directional bridge (for isolation) and are applied to the spectrum analyzer input. The power level of the two signals is 8

higher than specified, so the distortion products should be suppressed by 16 dB less than

specified. In this manner, the equivalent Third Order Intercept With two -30

the equivalent TO1 is +5

dBm

signals at the input mixer and the distortion products suppressed by 70

dBm

(-30

dBm

+ 70

dBc/B).

However, if two -22

present at the input mixer and the distortion products are suppressed by 54

TO1 is also +5

dBm

(-22

dBm

+ 54

dBc/Z).

(TOI)

is measured.

dBm

signals are

dBc,

the equivalent

dBc,

Performing the test with a higher power level maintains the measurement integrity while

reducing both test time and the dependency upon the source’s noise sideband performance. There are no related adjustment procedures for this performance test. It is only necessary to perform “Part 1: Second Harmonic Distortion, 30 MHz” for operation

verification.

Equipment Required

Synthesizer/level generator Synthesized sweeper Measuring receiver (used as a power meter)

Power sensor, 100

Low pass filter, 50 MHz

Directional bridge Adapter, Type N (f) to APC 3.5 (f) Adapter, Type N (f) to BNC (m) Adapter, Type N (m) to BNC (f) Adapter, Type N (m) to BNC (m) Cable, BNC, 120 cm (48 in) (2 required)

kHz

to 1800 MHz

Additional Equipment for Option 001

Power sensor Adapter, mechanical, 75 62 to 50 Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75 Adapter, BNC (m) to BNC (m)

l-54

Calibrating

HP 8590D Spectrum Analyzer

Page 67

13. Spurious Response

Caution

SPECTRUM ANALYZER

Use only 75 62 cables, connectors, or adapters on the 75 fi input of an Option 001 or damage to the input connector will occur.

SYNTHESIZED SWEEPER

ADAPTER

TYPE N CABLE

’ *

I I

ADAPTER

MINIMUM LOSS

ADAPTER

’

MEASURING RECEIVER

r-3

POWER SENSOR

’

MINIMUM ADAPTER I

’

ADAPTER

---c----w--

, OPT ION 001 ONLY

---_-B-_-_--d

;

Figure 1-18. Second Harmonic Distortion Test Setup, 30 MHz

Procedure

Part 1: Second Harmonic Distortion, 30 MHz

1. Set the synthesizer/level generator controls as follows: FREQUENCY

AMPLITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AMPLITUDE

2. Connect the equipment as shown in Figure l-18.

Option 001 only: Connect the minimum loss adapter between the LPF and INPUT 75

~........................................................30MHz

(Option

001).

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4.3 dBm

-1OdBm

XYli8

HP 85900 Spectrum Analyzer

Calibrating

l-55

Page 68

13. Spurious Response

3. Press

CPRESET)

on the spectrum analyzer and wait for the preset to finish then set the

controls as follows:

FREQUENCY) 30

INIHz)

h10m

Option 001 only: Press

(AMPLITUDE) 10

[PEAK

SEARCH]

(jj)

(-dem]

MK TRACK ON OFF (ON)

(j-1,

Mare I of 2, Amptd Units , then

dBm

ISPAN)l(MHz) (j-j Isw]

MK TRACK ON OFF (OFF)

300

4. Adjust the synthesizer/level generator Amplitude to place the peak of the signal at the reference level (-10

dBm).

5. Set the spectrum analyzer controls as follows:

(B\iv) 100

VID BW

AUTO MAN

3001Hz)

6. Wait for two sweeps to finish, then press the spectrum analyzer keys as follows:

(PEAK SEARCH) (FREQUENCY)

MARKER

CF STEP AUTO MAN 30 [MHz)

LFREQUENCY)

7. Press m (step-up key) on the spectrum analyzer to step to the second harmonic at

60 MHz. Press

@EAK

SEARCH). Record the MKR A Amplitude reading as TR Entry 13-l in the

performance test record.

1-56 Calibrating

HP 859OD Spectrum Analyzer

Page 69

13. Spurious Response

Part 2: Third Order Intermodulation Distortion, 50 MHz

Perform this procedure for calibrating the spectrum analyzer. It is not necessary to perform

this procedure for operation verification.

Caution

SYNTHESIZED SWEEPER

Use only 75 Q cables, connectors, or adapters on the 75 D input of an Option 001 or damage to the input connector will occur.

SPECTRUM ANALYZER

RF OUTPUT

ADAPTER

50 MHz LDW

PASS FILTER

IRECTIONAL

XY120

Figure 1-19. Third Order Intermodulation Distortion Test Setup

1. Zero and calibrate the measuring receiver and the power sensor in log mode so the power reads out in

Option 001 only: Calibrate the 75

dBm.

Enter the power sensor’s 50 MHz Cal Factor into the measuring receiver.

power sensor.

2. Connect the equipment as shown in Figure l-19 with the output of the directional bridge connected to the power sensor.

Option 001 only: The power measured at the output of the 50

directional bridge by the 75 62 power sensor, is the equivalent power “seen” by the 75 0 spectrum analyzer. Use the 75 61 power sensor with the Type N (f) to BNC (m) 75 D adapter and use a BNC (m) to BNC

(m) 75 D adapter in place of the 50 D adapter.

3. Press INSTRUMENT PRESET on the synthesized sweeper then set the controls as follows:

POWERLEVEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -6dBm

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

RF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..50MHz

..OFF

4. Set the synthesizer/level generator controls as follows: FREQUENCY

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

..50.050MHz

AMPLITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -6dBm

B/75 D

switch

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 0 (no RF output)

HP 959OD Spectrum Analyzer

Calibrating

1-57

Page 70

13.5.Spurious Response

On the spectrum analyzer, press

L-1

and wait until the preset is finished then set the

controls as follows:

FREQUENCY] 50 [MHz)

&lOW

Option 001 only: Press (AMPLITUDE), More 1 of 2, Amptd Units, then

(pYFmm-)

(PEAK SEARCH] More

PEAK EXCURSN

of 2

(ZZ)

dE!m

(DISPLAY) More 1 of 2

THRESHLD ON OFF (ON) 90

(-dBm)

6. On the synthesized sweeper, set the RF to ON. Adjust the power level until the measuring receiver reads -12

dBm

f0.05

dB.

7. Disconnect the power sensor from the directional bridge. Connect the directional bridge directly to the spectrum analyzer RF INPUT using an adapter and

Option 001 only:

Use a 75 0 adapter, BNC (m) to BNC (m).

not

a cable.

8. On the spectrum analyzer, press the following keys:

[PEAK

SEARCH]

(MKRFCTN)

MK TRACK ON OFF (ON)

(SPAN)2000

Wait for the AUTO

ZOOM

message to disappear, then press the following spectrum analyzer

keys:

(MKRFCTN)

[PEAK SEARCH)

C-1

9. On the synthesizer/level generator, set the 50

MK TRACK ON OFF (OFF)

MARKER

->REF

LVL

O/75 D

switch to the 50 Q position (RF ON).

Adjust the Amplitude until the two signals are displayed at the same amplitude.

10. If necessary, adjust the spectrum analyzer center frequency until the two signals are centered on the display. Set the controls as follows:

[BW)l(kHz)

11-

VID BW AUTO MAN

Press

CPEAK

SEARCH],

lOO@

[DISPLAY),

then DSP LINE ON OFF (ON). Set the display line to a value

54 dB below the current reference level setting.

12. The third order intermodulation distortion products should appear 50 frequency signal and 50

kHz

above the higher frequency signal. Their amplitude should be

kHz

below the lower

less than the display line.

l-58

Calibrating

HP 859OD Spectrum Analyzer

Page 71

13. If the distortion products can be seen, proceed as follows:

13. Spurious Response

a. On the spectrum analyzer, press

[PEAK SEARCH] and MARKER

Repeatedly press NEXT PEAK until the active marker is on the highest distortion

@CGF),

wait for completion of the sweep, then press

product.

c. Record the MKR A amplitude reading as TR Entry 13-2 in the performance test record.

The MKR A reading should be less than -54

dBc.

14. If the distortion products cannot be seen, proceed as follows: a. On both the synthesized sweeper and the synthesizer/level generator, increase the

power level by 5

dB.

Distortion products should now be visible at this higher power

level.

b. On the spectrum analyzer, press

Repeatedly press NEXT PEAK until the active marker is on the highest distortion

(sGL),

CPEAK

SEARCH), then

MARKER

A .

products.

d. On both the synthesized sweeper and the synthesizer/level generator, reduce the power

level by 5 dB and wait for the completion of a new sweep.

e. Record the MKR A amplitude reading as TR Entry 13-2 in the performance test record.

The MKR A reading should be less than -54

dBc.

8590D

Spectrum Analyzer

Calibrating l-59

Page 72

14. Gain Compression

Gain Compression is measured by applying two signals, separated by 3 MHz. First, the test places a -30 reference level is analyzer, overdriving its input. The decrease in the first signal’s amplitude (gain compression) caused by the second signal is the measured gain compression.

There are no related adjustment procedures for this performance test.

Equipment Required

Synthesized sweeper Synthesizer/level generator Measuring receiver (used as a power meter) Power sensor Directional bridge Adapter, Type N (f) to BNC (m) Adapter, Type N (m) to BNC (m) Adapter, Type N (f) to APC 3.5 (f) Adapter, Type N (m) to BNC (f) Cable, BNC, 120 cm (48 in) (2 required)

Additional Equipment for Option 001

dBm

signal at the input of the spectrum analyzer (the spectrum analyzer

also

set to -30

dBm).

Then, a 0

dBm

signal is applied to the spectrum

Power sensor, 75 Adapter, Type N (f) to BNC (m), 75 Adapter, BNC (m) to BNC (m), 75

l-60 Calibrating

HP 8590D Spectrum Analyzer

Page 73

14. Gain Compression

Caution

SYNTHESIZED SWEEPER

Use only 75 Q cables, connectors, or adapters on the 75 61 input of an Option 001 or damage to the input connector will occur.

RF OUTPU

ADAPTER

MEASURING RECEIVER

r-1

POWER SENSOR

SYNTHESIZER/LEVEL

GENERATOR

SPECTRUM ANALYZER

ADAPTER

SOURCE

Figure l-20. Gain Compression Test Setup

XY121

Procedure

1. Zero and calibrate the measuring receiver and the power sensor in log mode so the power reads out in

Option 001 only: Calibrate the 75

2. Connect the equipment as shown in Figure l-20, with the load (reflected) of the directional coupler connected to the power sensor.

Option 001 only: The power measured at the output of the 50

75 6) power sensor, is the equivalent power “seen” by the 75 61 spectrum analyzer. Use the

75 D power sensor with a Type N (f) to BNC (m) 75 62 adapter and use a BNC (m) to BNC (m) 75 62 adapter in place of the 50 Q adapter.

3. Press INSTRUMENT PRESET on the synthesized sweeper then set the controls as follows:

POWERLEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. Set the synthesizer/level generator controls as follows:

CW.. AMPLITUDE 50

O/75 Q

dBm.

Enter the power sensor’s 50 MHz Cal Factor into the measuring receiver.

power sensor.

directional bridge by the

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

.53

MHz

..6dBm

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

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

SWITCH

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

75 Q (no RF output)

..50MH

-14

dBm

HP 859OD Spectrum Analyzer

Calibrating l-61

Page 74

14. Gain Compression

5. On the spectrum analyzer, press

(j-1

and wait for the preset to finish then set the

controls as follows:

FREQUENCY] 50

h2om

Option 001: Press (AMPLITUDE],

IhnHz)

1 of 2 , Amptd Units , then

dEm

6. On the synthesized sweeper, adjust the power level for a 0 receiver. Set RF to OFF On the synthesizer/level generator, set the 50

dBm

reading on the measuring

O/75 62

switch to

Note that the power level applied to the spectrum analyzer input is 10 dB greater than the specification to account for the 10 dB attenuation setting. A power level of 0 spectrum analyzer input yields -10

dBm

at the input mixer.

dBm

at the

7. Disconnect the power sensor from the directional coupler and connect the directional coupler to the INPUT 50 Q connector of the spectrum analyzer using an adapter and

cable.

Option 001 only:

Use a 75 D adapter, BNC (m) to BNC (m).

8. On the spectrum analyzer, press the following keys:

not

SPEAK

SEARCH)

(MKRFCTN)

[SPAN)

100

TRACK OM OFF (ON)

Wait for the AUTO ZOOM message to disappear.

9. On the synthesizer/level generator, adjust the Amplitude to place the signal 1 dB below the spectrum analyzer reference level.

19.

On the spectrum analyzer, press

[SGLSWP), [PEAK

SEARCH), then MARKER A .

11. On the synthesized sweeper, set RF to ON.

12.

On the spectrum analyzer, press

f,jsGL],

(PEAK SEARCH), NEXT PEAK. The active marker

should be on the lower amplitude signal and not on the signal that is off the top of the screen. If it is not on the lower amplitude signal, reposition the marker to this peak using the spectrum analyzer knob.

13. Read the MKR A amplitude and record as TR Entry 14-1 in the performance test record. The absolute value of this amplitude should be less than or equal to 0.5

dB.

1-62 Calibrating

HP 859OD Spectrum Analyzer

Page 75

15. Displayed Average Noise Level

This test measures the displayed average noise level within the frequency range specified. The spectrum analyzer input is terminated in 50

The LO feedthrough is used as a frequency reference for these measurements. The test tunes the spectrum analyzer frequency

across the band, uses the marker to locate the frequency with the highest response, and then reads the average noise in zero span.

To reduce measurement uncertainty due to input attenuator switching and resolution

bandwidth switching, a reference level offset is added. The CAL OUT signal is used as the

amplitude reference for determining the amount of offset required. The offset is removed at the end of the test by pressing

[PRESETJ

The related adjustment for this procedure is the “Frequency Response Adjustment.”

Equipment Required

Termination, 50 0

Adapter, Type N (m) to BNC (f) Cable, BNC, 23 cm (9 in)

Additional Equipment for Option 001

Termination, 75 D Type N (m) Adapter, 75 Cable, BNC, 75 0, 30 cm (12 in)

Caution

f?,

Type N (f) to BNC (m)

Use only 75 D cables, connectors, or adapters on the 75 61 input of an Option 001 or damage to the input connector will occur.

SPECTRUM ANALYZER

Figure 1-21. Displayed Average Noise Level Test Setup

XYllO

HP 85900 Spectrum Analyzer

Calibrating 1-63

Page 76

15. Displayed Average Noise Level

Procedure

1. Connect a cable from the CAL OUT to the INPUT 50 D of the spectrum analyzer as shown in Figure 1-21.

Option 001 only: Use a 75

Press

CM)

Option 001 only:

ATTEN

and wait for the preset to finish. Set the controls as follows:

(j%KKiFj

AUTO MAN 0

cable and omit the adapter.

REF LWL

28.75

[dB)

(+dBm)

2. Press the following spectrum analyzer keys:

CPEAK

SEARCH]

[“KRFCTN)

MK TRACK ON OFF (ON)

Wait for the AUTO ZOOM message to disappear. Set the controls as follows:

VID BW AUTO MAN 30

1Hz)

[“KRFCIN) MK TRACK ON OFF (OFF)

3. Press

[SGLSWP_)

and wait for completion of a new sweep, then press the following spectrum

analyzer keys:

[PEAK SEARCH)

(AMPLITUDE) More 1 af 3

REF

LVL OFFSET

Subtract the MKR amplitude reading from -20 OFFSET. For example, if the marker reads -20.21 (-20.21

+2.35 dBmV

dBm)

+0.21 dB).

(28.75

Example for Option 001: If the marker reads 26.4

dBmV -

26.4

dBmV

= 2.35

dBm

and enter the result as the REF LVL

dBm,

enter

+0.21 dB

(-20

dBm -

dBmV).

dBmV,

enter

REF LVL OFFSET

Option 001:

REF LVL OFFSET

dBmV

4. Disconnect the cable from the INPUT 50 !l connector of the spectrum analyzer. Connect the 50 D termination to the spectrum analyzer INPUT 50 D connector.

Option 001 only: Use the 75

termination.

1-64 Calibrating

8590D

Spectrum Analyzer

Page 77

15. Displayed Average Noise Level

400

kHz

If testing a spectrum analyzer equipped with Option 001, omit steps 5 through 9 and proceed to step 10.

5. Press the following spectrum analyzer keys:

CAUT~ coupLEj

VID 3W AUTO

#AM

(AUTO)

(mj @@

cq-

SWEEP CONT SGL

6. Press the following spectrum analyzer keys:

(PEAK SEARCH)

l’j’j-

(SPAN) 800

MK TRACK ON OFF (ON)

(kHz)

Wait for the AUTO ZOOM message to disappear, then press the following spectrum analyzer keys:

(MKRFCTN) NK

TRACK ON OFF (OFF)

iBW)3(kHz)

(FREQUENCY)

7. Adjust the center frequency until the LO feedthrough peak is on the left-most graticule line. Set the controls as follows:

VID BW AUTO MAN

CSWEEP]

Press

SWP TIME AUTO MAN 5

(-1,

More I of 3, DETECTOR

300

[secl

(SMP), then

@ziSiF].

Wait for completion of a new sweep.

8. Press the following spectrum analyzer keys:

DSP LINE ON OFF (ON)

Adjust the display line so that it is centered on the average trace noise, ignoring any residual responses. Refer to the Residual Responses verification test for any suspect residuals.

9. Record the display line amplitude setting as TR Entry 15-1 as the noise level at 400 The average noise level should be less than the specified limit.

95900

Spectrum Analyzer

Calibrating l-65

kHz.

Page 78

15. Displayed Average’Noise Level

1MHz

10.

Press the following spectrum analyzer keys:

(AUTO COUPLE)

RES BW AUTO MAN (AUTO) VID BW AUTO RAN (AUTO)

Option 001 only:

LTRIG) SUEEP

11.

Press the following spectrum analyzer keys:

[PEAK SEARCH]

(jXXG-- MK [FV1KR->)

MARKER

(jA”pL’TuDE]

REF LVL 35

CONT SGL (CONT)

TRACK ON OFF (ON)

->REF

LVL

C-dBm]

=2-

Wait for the AUTO

ZOOM

message to disappear. Press

(MKRFCIN]

then MK TRACK ON OFF

(OFF).

12.

Press (FREQUENCY_) and adjust the center frequency until the LO feedthrough peak is on the left-most graticule line. Set the controls as follows:

ISPAN) 50m

(AMPLITUDE) 50 (TiiK]

Option 001

only:

cm’

REF LVL 1.2

(--dBm)

VID BW AUTO MAN

Press

13.

14.

[sGL].

Press the following spectrum analyzer keys:

Wait for the completion of a new sweep.

3Oa

(FiGiF]

DSP LINE ON OFF (ON)

Adjust the display line so that it is centered on the average trace noise, ignoring any residual responses. Refer to the Residual Responses verification test for any suspect residuals.

15.

Record the display line amplitude setting as TR Entry 15-2 in the performance test record as the noise level at 1 MHz. The average noise level should be less than the specified limit.

l-66 Calibrating

HP 85900 Spectrum Analyzer

Page 79

15. Displayed Average Noise Level

1 MHz to 1.5

Press the following spectrum analyzer keys:

16.

CFREQUENCY)

START STOP

GHz

FREQ l@J

FRECJ

1.5

(GHz)

(BW)l(MHz)

VID BW AUTO MAN 10

SWEEP CONT SGL (CONT)

Adjust the spectrum analyzer start frequency setting, if necessary, to place the LO

17.

(kHz)

feedthrough just off-screen to the left.

Press the following spectrum analyzer keys:

18.

(TEEiF-) C-1

CLEAR WRITE A More 1 of 3

VID AVG ON OFF (ON) 10 (Hz)

Wait until AVG 10 is displayed to the left of the graticule (the spectrum analyzer will take

ten sweeps, then stop).

Press

19.

[PEAK SEARCH) and record the MKR frequency as the Measurement Frequency in

Table 1-17 for 1 MHz to 1.5

GHz.

Press the following spectrum analyzer keys:

20.

~~~

[

More 1 of 3 VID AVG ON OFF (OFF)

AUTO COUPLE

) RES BW AUTO MAN (AUTO)

VID BW AUTO MAN (AUTO)

ISPAN)50m

[FREQUENCY] CENTER

Set the center frequency to the measurement frequency recorded in to 1.5

GHz.

Set the controls as follows:

FREG

Table

1-17 for 1 MHz

Isw)l(kHz)

21.

VID BW AUTO MAN

Press

CsGLSWP).

300

Wait for the sweep to finish. Press the following spectrum analyzer keys:

(jDIspLAy_)

DSP LINE ON OFF (ON)

Adjust the display line so that it is centered on the average trace noise, ignoring any residual responses. Refer to the Residual Responses verification test for any suspect residuals.

22.

Record the display line amplitude setting as TR Entry 15-3 in the performance test record. The average noise level should be less than the specified limit.

95900

Spectrum Analyzer

Calibrating l-67

Page 80

15. Displayed Average Noise Level

1.5

GHz

to 1.8

GHz

23. Press the following spectrum analyzer keys:

(AUTO COUPLE)

RES

BW AUTO MAN (AUTO)

VID BW AUTO MAN (AUTO)

ISPAN_) 100

(jizFmE)

Option 001 only:

ITRIG)

(FREQUENCY)

START

[-dE3m_l

(-1

REF LVL 1.2

SWEEP CONT SGL (CONT)

FREQ

1.5

LGHz)

(-dBmj

STOP

24. Repeat steps 18 through 21 above for frequencies from 1.5 If the Displayed Average Noise at 1.8

FREQ

1.8

IGHz)

GHz

to 1.8

GHz

is at or out of specification, it is recommended

GHz.

that a known frequency source be used as a frequency marker. This ensures that testing is done at or below 1.8

1 MHz to 1.5

GHz.

‘able

1-17. Displayed Average Noise Level

Frequent

400

Range

kHz

1 MHz 1 MHz

Measurement Displayed

Frequent y

(dBm

400

kHz

GHz

Average

Noise Level

dBmV)

TR Entry

15-1

15-2

(Option

15-3

(Option

Specification

-115

dBm

-115

dBm

001:

<-63 dBmV)

-115

dBm

001:

<-63 dBmV)

-113

001:

dBm

961 dBmV)

1.5

GHz

to 1.8

GHz

Record the display line amplitude setting as TR Entry 15-4 in the performance test record.

25.

15-4

(Option

The average noise level should be less than the specified limit.

1-69 Calibrating

HP 85900 Spectrum Analyzer

Page 81

16. Residual Responses

The spectrum analyzer input is terminated and the spectrum analyzer is swept from 150

kHz

above the LO to 1 MHz. Then the spectrum analyzer is swept in 50 MHz spans throughout the

1 MHz to 1.8

GHz

range. Any responses above the specification are noted.

There are no related adjustment procedures for this performance test.

Equipment Required

Termination, 50

Additional Equipment for Option 001

Termination, 75 61 Type N (m)

Adapter, 75 0 Type N (f) to BNC (m)

Caution

Use only 75 n cables, connectors, or adapters on the 75 62 input of an Option 001 or damage to the input connector will occur.

SPECTRUM ANALYZER

TER

Figure l-22. Residual Response Test Setup

Procedure

150kHzto

1. Connect the termination to the spectrum analyzer input as shown in Figure l-22.

Option 001 only: Use the 75

proceed with step 5. Press

following spectrum analyzer keys:

[PEAK SEARCH)

(jj) ISPAN)l(MHzl

Wait for the (OFF).

1MHz

fjj]

MK TRACK ON OFF (ON)

AUTO ZOOM

termination with the adapter, skip steps 2 through 4, and

on the spectrum analyzer and wait for the preset to finish. Press the

message to disappear, then press

(NlKRFCTN)

and MK TRACK ON OFF

XY123

959013

Spectrum Analyzer

Calibrating

1-69

Page 82

16. Residual Responses

3. Adjust the center frequency until the LO feedthrough peak is on the left-most vertical graticule line. Press the following spectrum analyzer keys as follows:

MARKER A 150

MARKER NORMAL

(‘j-j

ATTEN

AUTO MAN 0

(-Xl

iBW)3(kHz)

VID BW AUTO MAN 1

(EisFiq

DSP LINE ON OFF

4. Press

C-1

and wait for a new sweep to finish. Look for any residual responses at or

above the display line. If a residual is suspected, press

9OcXJ

(SGLSWP)

again. A residual response will persist on successive sweeps, but a noise peak will not. Note the frequency and amplitude of any residual responses above the display line and to the right of the marker in

‘lhble

1-18.

1 MHz to 1.8

5. Press

c-1

GHz

on the spectrum analyzer and wait for the preset to finish. Set the controls

as follows:

~p$fiJ-fiJ-~

SPAN

@KKiKE)60(X)

Option 001

MHz

only:

CAMPLITUDE]

REF LVL 11.25

ATTEN

AUTO MAN 0

6. Press (FREQUENCY) and adjust the center frequency until the LO feedthrough (the “signal”

Ide_l

near the left of the screen) is just off the left-most vertical graticule line. Set the controls as follows:

CF STEP AUTO MAN

450

(ZiJ 100

VID BW AUTO MAN 3

(DISPLAY)

DSP LINE ON OFF 90

Option 001 only:

7. Press

[sGL)

Press

and wait for a new sweep to finish. Look for any residual responses at or

above the display line. If a residual is suspected, press

c-1,

DSP LINE ON OFF , then 38

(--dBm)

(SGL’

again. A residual response will persist on successive sweeps, but a noise peak will not. Note the frequency and amplitude of any residual responses above the display line in

‘lhble

1-18.

l-70 Calibrating

95901) Spectrum Analyzer

Page 83

16. Residual Responses

8. Press

9. Repeat steps 7 and 8 until the range from 1 MHz to 1.8

[FREQUENCY_),

(step-up key), to step to the next frequency and repeat step 7.

GHz

has been checked. This requires 40 additional frequency steps. The test for this band requires about 6 minute to complete if no residuals are found.

If there are any residuals at or near the frequency specification limits (1 MHz or 1.8 it is recommended that a known frequency source be used as a frequency marker. This will ensure that testing is done within the specification limits.

10. Record the highest residual from

‘Ihble

1-18 as TR Entry 16-1 in the performance test

record. If no residuals are found, then record N/A in the performance test record.

‘Ihble

1-18. Residual Responses Above Display Line

Frequent y

(MHz)

Amplitude

Wm)

GHz),

95900

Spectrum Analyzer

Calibrating

l-71

Page 84

17. Absolute Amplitude, Vernier, and Power Sweep Accuracy

This procedure is only for spectrum analyzers equipped with Option 010 or 011.

’

The tracking generator output is connected to the spectrum analyzer input and the tracking is

adjusted at 300 MHz for a maximum signal level. A calibrated power sensor is then connected

to the tracking generator output to measure the power level at 300 MHz. The measuring receiver is then set for RATIO mode so that future power level readings are in

relative to the power level at -10

dBm

(Option 011: + 38.8

dBmV).

The output power level setting is decreased in 1 dB steps and the power level is measured at each step. The difference between ideal and actual power levels is calculated at each step.

Since a power sweep is accomplished by stepping through the vernier settings, the peak-to-peak variation of the vernier accuracy is equal to the power sweep accuracy.

The related adjustment for this procedure is the “Modulator Offset and Gain Adjustment.”

Equipment Required

Measuring receiver Power sensor Cable, Type N, 62 cm (24 in)

Additional Equipment for Option 011

Power sensor Cable, BNC, 75 Adapter, Type N (f) to BNC (m), 75 0 Adapter, mechanical, Type N, 50 fl (m) to 75 62 (f)

Caution

Use only 75 hl cables, connectors, or adapters on the 75 62 input of an Option 011 or damage to the input connector will occur.

MEASURING RECEIVER

------em-

OPTION 011 ONLY’

h--------J

Figure 1-23. Absolute Amplitude, Vernier, and Power Sweep Accuracy Test Setup

SPECTRUM ANALYZER

TYPE N CABLE (

OPTION

OPl

011: L

-ION 01

1SE 75R

ENC

CABLE

XY124

1-72 Calibrating

959013

Spectrum Analyzer

Page 85

17. Absolute Amplitude, Vernier, and Power Sweep Accuracy

Procedure

Connect the Type N cable between the RF OUT 50 9 and INPUT 50 0 connectors on the

1. spectrum analyzer. See Figure l-23.

@@ion 011

only: Connect the BNC cable between the RF OUT 75 62 and INPUT 75

connectors on the spectrum analyzer. Press

C-1

FREQUENCYI)

on the spectrum analyzer and set the controls as follows:

300 (MHz)

&OO

On the spectrum analyzer, press the following keys:

IIV1KR) [AUXCTRL)

Track

Gen

SRC PWR ON OFF (ON) 5 (-dBm]

Option

On the spectrum analyzer, press TRACKING PEAK . Wait for the PEAKING message to

011

only:

SRC PWR ON OFF (ON) 38

I+dBm)

disappear.

Zero and calibrate the measuring receiver/power sensor combination in log mode (power levels readout in

dBm).

Enter the power sensor’s 300 MHz Cal Factor into the measuring

receiver.

Disconnect the Type N cable from the RF OUT 50 61 and connect the power sensor to the RF OUT 50 D as shown in Figure l-23.

Option

011

only: Disconnect the BNC cable from the RF OUT 75 Q and connect the power

sensor to the RF OUT 75 0 using an adapter. On the spectrum analyzer, press 10

Option

Subtract -10

011

only: 38.8

dBm

I+dBm)

from the power level displayed on the measuring receiver and record

(+38.8

C-1, [SWP].

dBmV).

the result in the performance test record as TR Entry 17-1. Press RATIO on the measuring receiver. Power levels now readout in

9. power level just measured at the -10

Option

Set the SRC POWER to the settings indicated in

10.

011

only:

+38.8 dBmV

output power level setting.

dBm

output power level setting.

‘Ihble

1-19. At each setting, record the

relative to the

power level displayed on the measuring receiver. Calculate the Vernier Accuracy by subtracting the SRC POWER setting and 10 dB from the

11. Measured Power Level for each SRC POWER setting in

Vernier Accuracy = Measured Power Level - SRC POWER + 10

Option

011

only:

Calculate the Vernier Accuracy by subtracting the SRC POWER setting

from the Measured Power Level, adding 38.8 dB to each SRC POWER setting in

Vernier Accuracy = Measured Power Level - SRC POWER - 38.8

12.

Locate the most positive and most negative Absolute Vernier Accuracy values in Table 1-19

‘lhble

1-19.

dB.

Table

l-19.

and record as TR Entries 17-2 and 17-3 in the performance test record.

HP 85900 Spectrum Analyzer

Calibrating 1-73

Page 86

17. Absolute Amplitude, Vernier, and Power Sweep Accuracy

13. Calculate the power sweep accuracy by subtracting the Negative Vernier Accuracy recorded in step 12 from the Positive Vernier Accuracy recorded in step 12. Record the result in the performance test record as TR Entry 17-4.

Power Sweep Accuracy = Positive Vernier Accuracy - Negative Vernier Accuracy

‘Ihble

1-19. Vernier Accuracy Worksheet

SRC POWER Setting

Ipt

011, dBmV

+ 38.8 + 39.8

+40.8 +41.8 +42.8

+ 37.8 + 36.8 + 35.8 + 34.8 + 33.8

+32.8 +31.8

+ 30.8

+29.8 +28.8 +27.8

Ipt

010, dBm

-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

-1.5

-14

-13

-12

-11

Measured

Power Level Accuracy

0 (Ref)

Vernier

0 UW

Ueasurement

Uncertainty

f0.033 f0.033 f0.033 f0.033 f0.033 f0.033

60.033

f0.033 f0.033 f0.033 f0.033 f0.033 f0.033 f0.033 f0.033

1-74 Calibrating

95900

Spectrum Analyzer

Page 87

18. Tracking Generator Level Flatness

This procedure is only for spectrum analyzers equipped with Option 010 or 011. The tracking generator output is connected to the spectrum analyzer input and the tracking is

adjusted at 300 MHz for a maximum signal level. A calibrated power sensor is then connected to the tracking generator output to measure the power level at 300 MHz. The measuring receiver is set for RATIO mode so that future power level readings are in power level at 300 MHz.

The tracking generator is stepped to several frequencies throughout its range. The output power difference relative to the power level at 300 MHz is measured at each frequency and recorded.

The related adjustment for this procedure is the “Modulator Offset and Gain Adjustment.”

Equipment Required

Measuring receiver Power sensor Cable, Type N, 62 cm (24 in)

Additional Equipment for Option 011

relative to the

Power sensor Adapter, Type N (f) to BNC (m), 75

Adapter, mechanical, Type N, 50 61 (m) to 75 D (f) Cable, BNC, 75

Caution

Use only 75 0 cables, connectors, or adapters on the 75 0 input of an Option 011 or damage to the input connector will occur.

------e-e

OPTION 011 ONLY

L--------l

Figure l-24. Tracking Generator Level Flatness Test Setup

SPECTRUM ANALYZER

OUT

I I

50I2(or 75n 01

TYPE N CABLE

(OPTION 011:

‘TION

USE

75R

BNC C

ABLE)

XY124

95900

Spectrum Analyzer

Calibrating l-75

Page 88

18. Tracking Generator Level Flatness

Procedure

Connect the Type N cable between the RF OUT 50 61 and INPUT 50 D connectors on the

1. spectrum analyzer. See Figure l-24.

Option

011

only:

Connect the BNC cable between the RF OUT 75 Q and INPUT 75

connectors on the spectrum analyzer.

Press

(jj)

FREQUENCY) 0 (Hz)

on the spectrum analyzer. Set the controls as follows:

&15@KJ

Press the following spectrum analyzer keys:

(PEAK SEARCH)

(MKRFCTN)

(SPAN) 100

Wait for the

MK TRACK ON OFF (ON)

AUTO ZOOM

message to disappear. Press [

FREQUENCY

FREQ

OFFSET. Enter the negative of the MKR-TRK frequency displayed in the upper right-hand corner of the display. For example, if the MKR-TRK frequency is 132

kHz,

enter -132

kHz.

Set the spectrum analyzer controls as follows:

[MKRFCTN) m

MK TRACK OK OFF (OFF)

ZERO

SPA??

Wl(MHz)

Set the spectrum analyzer controls as follows:

CF STEP AUTO MAN

(SPAN)OIHz)

On the spectrum analyzer, press the following keys:

lOO=

INIKR) [CTRL)

SRC PWR ON OFF 5

Option

On the spectrum analyzer, press TRACKIWG PEAK . Wait for the

Track Gen

011

only:

(--dBm]

SRC PWR ON OFF 38

(+dBm)

(+ 38

dBmV).

PEAKING

message to

disappear.

Zero and calibrate the measuring-receiver/power-sensor combination in log mode (power levels readout in

dBm).

Enter the power sensor’s 300 MHz Cal Factor into the measuring

receiver.

Disconnect the Type N cable from the RF OUT 50 D and connect the power sensor to the

RF OUT 50 0.

Option

011

only: Disconnect the BNC cable from the RF OUT 75 D and connect the power

sensor to the RF OUT 75 D using an adapter.

On the spectrum analyzer, press then

CsGL).

(AUXCTRL),

Track Gen ,

SIX

PWR OK OFF , 10

[-dBm),

Option

1-76 Calibrating

011

only:

SRC PWR ON OFF 38.8

C+dBm).

8580D

Spectrum Analyzer

Page 89

18. Tracking Generator Level Flatness

10. Press RATIO on the measuring receiver. The measuring receiver readout is now for power levels relative to the power level at 300 MHz.

11. Set the spectrum analyzer center frequency to 100

Option

011

only: Set the spectrum analyzer center frequency to 1 MHz then press

kHz

then press

CsGL].

@EmiF-).

12. Enter the appropriate power sensor Cal Factor into the measuring receiver as indicated in Table l-20.

13. Record the power level displayed on the measuring receiver as the Level Flatness in Table l-20.

14. Repeat steps 11 through 13 above to measure the flatness at each center frequency setting listed in

‘Ihble

l-20. The

(h)

(step-up) key may be used to tune to center frequencies above

100 MHz.

Spectrum analyzers equipped with Option 011 should be tested only at frequencies of

1 MHz to 1.8

GHz.

15. Locate the most positive Level Flatness reading in Iable l-20 for the indicated frequency ranges and record as the Maximum Flatness.

Option 010:

Maximum Flatness, 100

Maximum Flatness, 300

kHz

to 5 MHz

Maximum Flatness, 10 MHz to 1800 MHz

kHz

(TR Entry 18-l)

(TR Entry 18-2)

(TR Entry 18-3)

Maximum Flatness, 1 MHz to 1800 MH

16. Locate the most negative Level Flatness reading in ranges as the Minimum Flatness.

Minimum Flatness, 100

Minimum Flatness, 300

kHz

to 5

Minimum Flatness, 10 MHz to 1800 MHz

Minimum Flatness, 1 MHz to 1800 MHz

17. Press

(jj)

on the spectrum analyzer.

Option 011:

AdB

‘Ihble

l-20 for the indicated frequency

(TR Entry 18-1)

Option 010:

kHd

MH-

(TR Entry 18-4)

(TR Entry 18-5)

(TR Entry 18-6)

Option 011:

(TR Entry 18-2)

HP 8580D Spectrum Analyzer

Calibrating

l-77

Page 90

18. Tracking Generator Level Flatness

lhble

l-20. Level Flatness Relative to 300 MHz Worksheet

Center

Freq

100

kHz*

300

kHz*

500

kHz’

1 MHz 2 MHz 5 MHz

10 MHz 20 MHz 50 MHz

100 MHz 200 MHz 300 MHz 400 MHz 500 MHz 600 MHz 700 MHz 800 MHz 900 MHz 000 MHz

100 MHz 200 MHz 300 MHz 400 MHz 500 MHz 600 MHz 700 MHz 800 MHz

Level Cal Factor

Flatness

0 (Ref)

fieq

(MHz)

0.1

0.3

0.3 1

3 3

10 30 50

100 300 300 300 300

300 1000 1000 1000 1000

1000 1000 1000

1000 2000 2000 2000 2000

Measurement

Uncertainty

Option 010 Option 011

0.421-0.45

0.28/-0.28

0.281-0.28

+0.28/-0.28

0.28/-0.28

0.241-0.24

0.24/-0.24

0.241-0.24

0.241-0.24 0

(Ref)

0.241-0.24

+ 0.241-0.24 + 0.241-0.24

0.241-0.24

0.24/-0.24

+ 0.24/-0.24 +0.18/-0.39

0.24/-0.24 +0.18/-0.39

+ 0.241-0.24 + 0.241-0.24

0.241-0.24

0.24/-0.24

+ 0.24/-0.24

(dB)

N/A N/A

N/A

0.18/-0.39

O.lS/-0.39 + 0.18/-0.39

0.18/-0.39 + 0.18/-0.39 + O.lS/-0.39

O.lS/-0.39

(Ref)

0.18/-0.39

O.lS/-0.39

O.lS/-0.39 + O.lS/-0.39

0.18/-0.39

O.lS/-0.39

+0.18/-0.39

O.lS/-0.39

+ 0.18/-0.39

l-78

Calibrating

These frequencies are tested on Option 010 spectrum analyzers only.

HP 8590D Spectrum Analyzer

Page 91

19. Harmonic Spurious Outputs

This procedure is only for spectrum analyzers equipped with Option 010 or 011. The tracking generator output is connected to the spectrum analyzer input and the tracking

is adjusted at 300 MHz for a maximum signal level. The tracking generator output is then

connected to the input of an microwave spectrum analyzer. The tracking generator is tuned to several frequencies and the amplitude of the second and third harmonics relative to the fundamental are measured at each frequency.

There are no related adjustment procedures for this performance test.

Equipment Required

Microwave spectrum analyzer Adapter, Type N (m) to BNC (f) Cable, Type N, 62 cm (24 in) Cable, BNC, 23 cm (9 in)

Additional Equipment for Option 011

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75 Cable, BNC, 75

Caution

SPECTRUM ANALYZER

Use only 75 D cables, connectors, or adapters on the 75 D input of an Option 011 or damage to the input connector will occur.

SPECTRUM ANALYZER

IPTION

TYPE N CABLE

OPTION

BNC CABLE

TYPE N CABLE

-----

_--------

OPTION

,--------I

011

ONLY

(

Figure l-25. Harmonic Spurious Outputs Test Setup

011: USE

75n

BNCCABLE)

XY126

8590D

Spectrum Analyzer

Calibrating 1-79

Page 92

19. Harmonic Spurious Outputs

Procedure

Connect the Type N cable between the RF OUT 50 a2 and INPUT 50 D connectors on the spectrum analyzer. See Figure l-25.

Option

011

only: Connect the 75 61 BNC cable between the RF OUT 75 D and INPUT 75

connectors on the spectrum analyzer.

2.Press PRESET on the spectrum analyzer and set the controls as follows:

On the spectrum analyzer, press the following keys:

m (AUXj

SRC PWR ON OFF 5

Option

On the spectrum analyzer, press TRACKING PEAK . Wait for the PEAKING message to

011

Track

only:

Gen

[-dBm)

SRG

PWR ON OFF 42

(+dBm)

( + 42

dBmV).

disappear.

On the spectrum analyzer, press 0

Option

011

only: 42.8

(+dBm).

(+dBm), (FREQUENCY],

IhnHz),

then

I-).

It is only necessary to perform step 6 if more than 2 hours have elapsed since a front-panel calibration of the microwave spectrum analyzer has been performed. The microwave spectrum analyzer should be allowed to warm up for at least 30 minutes before proceeding.

6.Perform a front-panel calibration of the microwave spectrum analyzer as follows:

a. Connect a BNC cable between CAL OUTPUT and RF INPUT.

b. Press

c. Press

Connect the Type N cable from the tracking generator output to the microwave spectrum

lj-1

(INSTR PRESET), (RECALL), 8. Adjust AMPTD CAL for a marker

amplitude reading of -10

(jj),

9. Adjust

C-1

dBm.

for a maximum amplitude response.

analyzer RF INPUT. See Figure l-25.

Option

Set the microwave spectrum analyzer controls as follows:

011

only: Use the minimum loss adapter and Type N (f) to BNC (m) adapter.

CENTER FREQUENCY

SPAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REFERENCE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MHz

..lOMHz

dBm

RESBW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30kHz

LOGdB/DIV

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

10dB

l-90

Calibrating HP 859OD Spectrum Analyzer

Page 93

9. On the microwave spectrum analyzer, do the following:

19. Harmonic Spurious Outputs

a. Press (PEAK SEARCH] and (SIGNAL

TRACK_)

(ON). Wait for the signal to be displayed at

center screen.

b. Press [PEAK SEARCH],

c. Press (CENTER

IPEAK

SEARCH). Record the marker amplitude reading in

&KR ->

Ffwwmc

CF STEPI Inl. and

YJ, m

(step-t&key) to tune to the second harmonic. Press

CSIGNAL TRACK)

‘fable

(OFF).

1-21 as the 2nd Harmonic

Level for the 10 MHz Tracking Generator Output Frequency.

d. Perform this step only if the tracking generator output frequency is less than 600 MHz.

Press [CENTER FREQUENCY], m (step-up) key to tune to the third harmonic. Press

[PEAK SEARCH) Record the marker amplitude reading in Table 1-21 as the 3rd Harmonic

Level for the 10 MHz Tracking Generator Output Frequency.

e. Press MARKER

IOFF).

10. Repeat steps 8 and 9 above for the remaining Tracking Generator Output Frequencies listed in

Table

1-21. Note that the spectrum analyzer CENTER FREQ is the same as the Tracking

Generator Output Frequency,

11. Locate the most positive 2nd Harmonic Level in

Table

1-21 and record as TR Entry 19-1 in

the performance test record.

12. Locate the most positive 3rd Harmonic Level in

Table

1-21 and record as TR Entry 19-2 in

the performance test record.

‘Ihble

1-21. Harmonic Spurious Responses Worksheet

2nd Harmonic

Level

3rd Harmonic Measuremenl

Level

(dBc) (dB)

N/A

Uncertainty

+ 1.55/-1.80 + 1.55/-1.80 + 1.55/-1.80 + 1.55/-1.80

HP 8580D Spectrum Analyzer

Calibrating 1-81

Page 94

20. Non-Harmonic Spurious Outputs

This procedure is only for spectrum analyzers equipped with Option 010 or 011.

The tracking generator output is connected to the spectrum analyzer input and the tracking is adjusted at 300 MHz for a maximum signal level. The tracking generator output is then connected to the input of a microwave spectrum analyzer. The tracking generator is set to several different output frequencies.

For each output frequency, several sweeps are taken on the microwave spectrum analyzer over different frequency spans and the highest displayed spurious response is measured in each span. Responses at the fundamental frequency of the tracking generator output or their harmonics are ignored. The amplitude of the highest spurious response is recorded.

There are no related adjustment procedures for this performance test.

Equipment Required

Microwave spectrum analyzer Adapter, Type N (m) to BNC (f) Cable, Type N, 62 cm (24 in) Cable, BNC, 23 cm (9 in)

Additional Equipment for Option 011

Adapter, minimum loss Adapter, Type N (f) to BNC (m), 75 Cable, BNC, 75

Caution

SPECTRUM ANALYZER

Use only 75 D cables, connectors, or adapters on the 75 62 input of an Option 011 or damage to the input connector will occur.

SPECTRUM ANALYZER

INPUT

50n(or 750

TYPE

BNC CABLE

TYPE N CABLE

---B--e

l+;PTlON 011 ONLV’ ,--------I

(OPTION oil:

Figure l-26. Non-Harmonic Spurious Outputs Test Setup

CABLE

TION 011)

USE

75~

BNC

CABLE)

XY126

1-82 Calibrating

HP 8580D Spectrum Analyzer

Page 95

20. Non-Harmonic Spurious Outputs

Procedure

Connect the Type N cable between the RF OUT 50 62 and INPUT 50 D connectors on the spectrum analyzer. See Figure l-26.

Q&ion 011 only: Connect the 75 D BNC cable between the RF OUT 75 n and INPUT 75

on the spectrum analyzer.

Press

L-1

FREQUENCY) 300

On the spectrum analyzer, press the following keys:

(AUXCTRL)

SRC PWR ON OFF 5

Option

On the spectrum analyzer, press TRACKING PEAK . Wait for the PEAKING message to

011 on@:

on the spectrum analyzer and set the controls as follows:

IhnHz)

Track

Gen

SRC PWR ON OFF 38

I+dBm)

(+38

dBmV).

disappear.

On the spectrum analyzer, press 0

Option 011 only: 42.8

(+dBmj.

(+dBmj’

then

C-1.

It is only necessary to perform step 6 if more than two hours have elapsed since a front-panel calibration of the microwave spectrum analyzer has been performed. The microwave spectrum analyzer should be allowed to warm up for at least 30 minutes before proceeding.

Perform a front-panel calibration on the microwave spectrum analyzer as follows:

Connect a BNC cable between CAL OUTPUT and RF INPUT.

ba:

Press

c-1

amplitude reading of -10

Press

t-1,

Press

(SHIFT),

Press

@XTJ

(INSTR PRESET), (RECALL_), 8. Adjust AMPTD CAL for a marker

dBm.

9. Adjust FREQ

[FREQUENCY SPAN] to start the 30 second internal error correction routine.

[START FREQ) to use the error correction factors just calculated.

ZERO

for a maximum amplitude response.

7.8.Connect the Type N cable from the tracking generator output to the microwave spectrum

analyzer RF INPUT as shown in Figure l-26.

O-ption 011

only: Use the minimum loss adapter and Type N (f) to BNC (m) adapter.

Set the spectrum analyzer CENTER FREQ to the Fundamental Frequency listed in

‘lhble

l-22.

Set the microwave spectrum analyzer controls as follows:

SPAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REFERENCE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100kHz

dBm

ATTEN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20dB

LOGdB/DIV

Set the microwave spectrum analyzer CENTER FREQUENCY to the Fundamental

10.

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

10dB

Frequency listed in Table l-22.

HP 959OD Spectrum Analyzer

Calibrating 1-83

Page 96

20. Non-Harmonic Spurious Outputs

11. On the microwave spectrum analyzer, press [PEAK SEARCH). Press

(MKR

REF LVL). Wait for another sweep to finish.

12. Record the microwave spectrum analyzer marker-amplitude reading in

cm->,

Table

l-22 as the

Fundamental Amplitude.

13. Set the microwave spectrum analyzer [START FREQ), in the first row of

14. Press

CPEAK

(SINGLE)

SEARCH).

Table

l-23.

on the microwave spectrum analyzer and wait for the sweep to finish. Press

CsTopFREQI),

and

(j-1

as indicated

15. Verify that the marked signal is not the fundamental or a harmonic of the fundamental as follows:

a. Divide the marker frequency by the fundamental frequency (the spectrum analyzer

CENTER FREQ setting). For example, if the marker frequency is 30.3 MHz and the fundamental frequency is 10 MHz, dividing 30.3 MHz by 10 MHz yields 3.03.

b. Round the number calculated in step a the nearest whole number. In the example

above, 3.03 should be rounded to 3.

c. Multiply the fundamental frequency by the number calculated in step b. Following the

example, multiplying 10 MHz by 3 yields 30 MHz.

d. Calculate the difference between the marker frequency and the frequency calculated in

step c above. Continuing the example, the difference would be 300

kHz.

e. Due to span accuracy uncertainties in the microwave spectrum analyzer and center

frequency uncertainties in the spectrum analyzer, the marker frequency might not equal the actual frequency. Given the marker frequency, check if the difference calculated in step d is within the appropriate tolerance:

For marker frequencies For marker frequencies

~55

MHz, tolerance = ±750

>55

MHz, tolerance =

f10

kHz

MHz

f. If the difference in step d is within the indicated tolerance, the signal in question is the

fundamental signal (if the number in step b = 1) or a harmonic of the fundamental (if the number in step b

>l).

This response should be ignored.

16. Verify that the marked signal is a true response and not a random noise peak by pressing

c-1

to trigger a new sweep and press (PEAK SEARCH]. A true response will remain at the

same frequency and amplitude on successive sweeps but a noise peak will not.

17. If the marked signal is either the fundamental or a harmonic of the fundamental (see

step 15) or a noise peak (see step pressing

ml,

[PEAK SEARCH). Continue with step 19.

16),

move the marker to the next highest signal by

18. If the marked signal is not the fundamental or a harmonic of the fundamental (see step

15) and is a true response (see step

marked signal and the Fundamental Amplitude as listed in

16),

calculate the difference between the amplitude of

‘Iable

l-22.

For example, if the Fundamental Amplitude for a fundamental frequency of 10 MHz is

+ 1.2

dBm

and the marker amplitude is -40.8

dBm,

the difference is -42

dBc.

Record this difference as the Non-Harmonic Response Amplitude for the appropriate spectrum analyzer CENTER FREQ and microwave spectrum analyzer START and STOP FREQ settings in

YIhble

l-23.

Non-Harmonic Amplitude = Marker Amplitude - Fundamental Amplitude

19. If a true non-harmonic spurious response is not found, record “NOISE” as the Non-Harmonic Response Amplitude in

Table

l-23 for the appropriate spectrum analyzer

CENTER FREQ and microwave spectrum analyzer START and STOP FREQ settings.

1-84 Calibrating HP 959OD Spectrum Analyzer

Page 97

20. Non-Harmonic Spurious Outputs

20. Repeat steps 14 through 19 for the remaining microwave spectrum analyzer settings for

[START FREQ),

@ZKKjJ

and

@ZZK]

for the spectrum analyzer CENTER FREQ setting of

10 MHz.

21. Repeat steps 8 through 20 with the spectrum analyzer CENTER FREQ set to 900 MHz.

22. Repeat steps 8 through 20 with the spectrum analyzer CENTER FREQ set to 1.8

23. Locate in

Table

l-23 the most-positive Non-Harmonic Response Amplitude. Record this

amplitude as TR Entry 20-l in the performance test record.

‘l’hble

l-22. Fundamental Response Amplitudes Worksheet

‘Ihble

Microwave Spectrum

Analyzer

lyzer

Settings

start

Freq

(MHz)

stop Freq

(MHz)

Res BW

Fundamental Frequency Fundamental Amplitude

10 MHz

900 MHz

1.8

GHz

l-23. Non-Harmonic Responses Worksheet

@lo

MHz

Center

fieq

Non-Harmonic Response

Amplitude

a900

(dBc)

MHz

Center

Frea

(dBm)

al.8 GHz

Center

Frea

deasuremenl

Uncertaintv

GHz.

0.11

5.0

1240

5.0

1240

1800

10 kHz

100 kHz

1 MHz

lMHI

’

Option 011: Set START FREQ to 1 MHz.

+ 1.55/-1.80

8590D

Spectrum Analyzer

Calibrating l-85

Page 98

21. Tracking Generator Feedthrough

This procedure is only for spectrum analyzers equipped with Option 010 or 011. The tracking generator output is connected to the spectrum analyzer input and the tracking is

adjusted at 300 MHz for a maximum signal level. The tracking generator output is terminated and set for 0 terminated. The noise level of the spectrum analyzer is then measured at several frequencies.

There is no related adjustment procedure for this performance test.

Equipment Required

Termination, 50 62 (2 required) Adapter, Type N (m) to BNC (f) Cable, Type N, 62 cm (24 in) Cable, 23 cm (9 in)

Additional Equipment for Option 011

Termination, 75 61 Type N (m) (2 required) Adapter, Type N (f) to BNC (m), 75 62 (2 required) Cable, BNC, 75

dBm

output power (maximum output power). The spectrum analyzer input is also

Caution

(OPTION 011:

Use only 75 62 cables, connectors, or adapters on the 75 62 input of an Option

011 or damage to the input connector will occur.

SPECTRUM ANALYZER

50Q TERMINATION

USE

75~ TERMINATION)

CABLE

(OPTION oil-

USE

75fl

BNC

CABLE)

Figure l-27. Tracking Generator Feedthrough Test Setup

50Q TERMINATION

(OPTION 011:

USE

75n TERMINATION)

XYlZt?

1-86 Calibrating

859OD Spectrum Analyzer

Page 99

2 1. Tracking Generator Feedthrough

Procedure

Connect the Type N cable between the RF OUT 50 52 and INPUT 50 62 connectors on the spectrum analyzer. See Figure l-27.

Option

011

only: Connect the 75 61 BNC cable between the RF OUT 75

and INPUT 75

connectors on the spectrum analyzer.

Press

[PRESET]

FREQUENCY) 300

on the spectrum analyzer and set the controls as follows:

&l(g

On the spectrum analyzer, press the following keys:

m (AUX]

Track Gen

SRC PWR ON OFF 5 [-dBm-

Option

On the spectrum analyzer, press TRACKING PEAK . Wait for the PEAKING message to

011

only: 42 +

dBm

(+ 42

dBmV).

disappear.

Connect the CAL OUTPUT to the INPUT 50

Option

011

only: Connect the CAL OUTPUT to the INPUT 75

62. B.

Set the spectrum analyzer controls as follows:

CAMPLITUDE) 20

0ption 011 only:

(-dBm)

(amplitude] FIEF LWL

28.75

ATTEN AUTO MAN OIdB)

On the spectrum analyzer, press the following keys:

[PEAK SEARCH)

(MKR-

(SPAN) 100

MK TRACK ON OFF (ON)

Wait for the AUTO ZOOM message to disappear then set the controls as follows:

lew)

VID BW AUTO MAN 30

(MKRFCTN)

MK TRACK ON OFF (OFF)

IHz)

959013

Spectrum Analyzer

Calibrating

l-97

Page 100

2 1. Tracking Generator Feedthrough

7. Press

CsGLSWPI)

and wait for completion of a new sweep. Press the following spectrum

analyzer keys:

(PEAK SEARCH_)

@iGiFE)

More 1 of 3

REF LVL OFFSET

Subtract the

amplitude reading from -20

dBm

and enter the result as the

REF LVL OFFSET. For example, if the marker reads -20.21

[-20

dBm -

(-20.21

dBm)

+0.21 dB].

Example for Option 011: If the marker reads 26.4

(28.75

dBmV -

26.4

dBmV

= 2.35

dB).

dBm,

enter

dBmV,

+0.21 dB

enter

+2.35 dB

REF LVL OFFSET

8. Connect one 50 0 termination to the spectrum analyzer INPUT 50 D and another to the tracking

Option

another to the tracking generator’s RF OUT 75

Press

generator’s

011

c-1,

RF OUT 50

only: Connect

one7562

terminationtothe

spectrum analyzer

INPUT7562

61.

Track Gen , then SRC PWR ON OFF (OFF) on the spectrum analyzer.

and

10. Set the spectrum analyzer controls as follows:

(FREQUENCY)Oa

ISPAN) 100

(AMPLITUDE) 10

O-ption

011 only:

C-1

REF LVL 38.75

[+dBm)

VID BW AUTO MAN (AUTO)

(MKR)

More 1 of 2

MARKER ALL OFF

ITRIG)

SWEEP CONT SGL (CONT)

11. Press the following spectrum analyzer keys:

(PEAK SEARCH)

(jjFCTNI) [mj

MK TRACK ON OFF (ON)

MARKER

->REF

LVL

LSPAN)2(MHz)

Wait for the AUTO ZOOM message to disappear, then press (OFF).

(jj),

MK TRACK ON OFF

l-88 Calibrating

HP 859OD Spectrum Analyzer