HP 5342a schematic

Download

TM 11-6625-3014-14

TECHNICAL MANUAL

OPERATOR’S,ORGANIZATIONAL,

DIRECT SUPPORT, AND GENERAL SUPPORT

MAINTENANCE MANUAL

FOR

MICROWAVE FREQUENCY COUNTER

TD-1225A(V)1/U

(NSN 625-01-103-2958)

HEADQUARTERS, DEPARTMENT OF THE ARMY

SEPTEMBER 1981

SAFETY STEPS

TO FOLLOW IF

SOMEONE

IS THE VICTIM

OF ELECTRICAL

SHOCK

DO NOT TRY TO PULL OR GRAB THE INDIVIDUAL

IF POSSIBLE , TURN OFF THE ELECTRICAL POWER

IF YOU CANNOT TURN OFF THE ELECTRICAL POWER, PULL, PUSH, OR LIFT THE PERSON TO SAFETY USING A WOODEN POLE OR A ROPE OR

SOME OTHER INSULATING MATERIAL

SEND FOR HELP AS SOON AS POSSIBLE

AFTER THE INJURED PERSON IS FREE OF

CONTACT WITH THE SOURCE OF ELECTRICAL SHOCK, MOVE THE PERSON A SHORT DISTANCE AWAY AND IMMEDIATELY START ARTIFICIAL RESUSCITATION

SAFETY

This product has been designed and tested according to International Safety Requirements. To ensure safe operation and to keep the product safe, the information, cautions, and warnings in this manual must be heeded. Refer to Section I for general safety considerations applicable to this product.

This manual includes copyright material reproduced by permission of the HEWLETT-PACKARD Company.

TM 11-6625-3014-14

TECHNICAL MANUAL

NO. 11-6625-3014-14

DIRECT SUPPORT, AND GENERAL SUPPORT

DEPARTMENT OF THE ARMY

Washington, D.C.

OPERATOR’S,ORGANIZATIONAL,

MAINTENANCE MANUAL

MICROWAVE FREQUENCY COUNTER

TD-1225A(V)1/U

(NSN 6625-01-103-2958)

HEADQUARTERS

10 September 1981

REPORTING OF ERRORS

You can improve this manual by recommending improvements using DA Form 2028-2 located in the back of the manual. Simply tear out the self-addressed form, fill it out as shown on the sample, fold it where shown, and drop it in the mail.

If there are no blank DA Forms 2028-2 in the back of your manual, use the standard DA Form 2028 (Recommended Changes to Publications and Blank Forms) and forward to Commander, US Army Communications and Electronics Materiel Readiness Command, ATTN: DRSEL-ME-MQ, Fort Monmouth, NJ 07703.

In either case a reply will be forwarded direct to you.

Section

TABLE OF CONTENTS

Title

Page

INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . .0-1

0-1 0-2 0-3 0-4

Scope . . . . . . . . . . . . . . . . . . . ...0-1

Indexes of publications . . . . . . . . . . . . . . 0-1

Forms and records . . . . . . . . . . . . . . . .. 0-1

Reporting of equipment improvement

recommendations (EIR) . . . . . . . . . . . . 0-1

Administrative storage . . . . . . . . . . . . . . 0-1

0-5 0-6

Destruction of army electronics materiel . . . . . 0-1

SERIAL PREFIX: 1840A

This manual applies to Serial Prefix 1840A, unless accompanied by a Manual Change Sheet indicating otherwise.

This manual is an authentiation of the manufacturer’s commercial literature which,through usage, has been found to cover the data required to operate and maintain this equipment. Since the manual was not prepared in accordance with military specifications and AR 310-3, the format has not been structured to consider levels of maintenance.

Model 5342A

Table of Contents

TABLE OF CONTENTS (Continued)

Section

Title

GENERAL INFORMATION 1-1.

1-3. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5. Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-7. Instrument Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-9.

1-11. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-13. Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-15. Service Equipment Available 1-17. Recommended Test Equipment

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1. 2-3. 2-5. 2-9. 2-11. 2-15. Storage and Shipment 2-16. 2-19. 2-22. Field Installation of Options 2-24. 2-26. 2-28.

2-30. Installation of Extended Dynamic Range Option 003 . . . . . . . . 2-7

2-32.

2-34. 2-36.

2-39. 5342A Listen Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

2-41.

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction Unpacking and Inspection Installation Requirements

Power Cable

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

Environment Packaging

Part Numbers for Ordering Option Kits

Installation of 10 MHz Oscillator Option 001 . . . . . . . . . . . . . . . 2-4

Installation of Amplitude Measurement Option 002

Installation of Digital-to-Analog Conversion

Installation of HP-IB Option 011 HP-IB Interconnections

HP-IB Descriptions

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

(DAC) Option 004 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Page

1-1

1-1 1-1 1-3 1-3 1-3 1-4 1-4 1-4

2-1 2-1 2-1 2-1 2-2

2-3

2-4

2-4. . . . . . . .

2-8

III

OPERATION 3-1. 3-3. 3-5. 3-7.

3-10. CHECK, DAC, and ENTER Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3-12. 3-14.

3-16. 3-18. 3-20. 3-22.

3-24. SET, RESET, RECALL, and CHS Keys 3-2. . . . . . . . . . . . . . . . . . . . . . .

3-25. SAMPLE RATE, GATE, and REMOTE . . . . . . . . . . . . . . . . . . . . . . . 3-2

3-30.

3-32.

3-34.

3-36. Maximum Input Signal Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3-39. Input Cable Considerations

Introduction

Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Resolution Keys

FREQ Keys

Automatic Mode Manual Mode Offset Frequencies Amplitude and Offset Measurements Digital-to-Analog Converter (DAC) Operation

AM Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

FM Tolerance

Automatic Amplitude Discrimination . . . . . . . . . . . . . . . . . . . . . . 3-3

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

. . . . . . . . . . . . . . . . . . . . . 3-2

. . . . . . . . . . . . . 3-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

. . . ...... . . . . . . . . . . . .... ... . 3-4

3-1 3-1 3-1 3-1 3-1

3-2

TABLE OF CONTENTS (Continued)

Model 5342A

Table of Contents

Section

Title

III OPERATION (Continued)

3-41. Controls, Indicators, and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3-43. Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-45. Operator Key board Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

3-47. Error Code Displays

Instrument Error Displays . .

Operator Error Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Limit Errors and Sequence Errors

Amplitude Option 002

Extended Dynamic Range Option 003 HP-IB Interface Option 011

Digital-to-Analog Converter (DAC) Option 004 . . . . . . . . 3-19

(Option 002,011 Only)

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operational Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Complete Performance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Required

Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operational Verification Procedures . . . . . . . . . . . . . . . . . . . . . . . . . .

Self-Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Hz—500 MHz Input Sensitivity Test,

(Standard and Option 003 1nstruments Only) . . . . . . . . . . . 4-2

10 Hz—500 MHz Input Minimum Level and

Amplitude Accuracy Test (Option 002) . . . . . . . . . . . . . . . .

10 Hz—500 MHz Input Maximum

Input Test (Option 002)

500 MHz-18 GHz Input Sensitivity Test (Standard and

Option 003 Instruments Only) . . . . . . . . . . . . . . . . . . . . . . . .

500 MHz—18 GHz Input Minimum Level and Amplitude

Accuracy Test (Option 002)

500 MHz-18 GHz High Level Test . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Option 011 HP-IB Verification Program . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Digital-to-Analog Converter (DAC) Output Test (Option 004) . . . 4-16

Performance Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Hz—500 MHz Input Sensitivity Test,

(Standard and Option 003 Instruments Only) . . . . . . . . . . . 4-17

10 Hz—500 MHz Input Sensitivity Test, 1 500 MHz—18 GHz Input Sensitivity Test (Standard and

Option 003 Instruments Only)

500 MHz-18 GHz lnput SWR Test . . . . . . . . . . . . . . . . . . . . . . 4-20

500 MHz-18 GHz Maximum Input Test . . . . . . . . . . . . . . . . . . . 4-22

FM Tolerance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Automatic Amplitude Discrimination Test . . . . . . . . . . . . . . . . .

3-49. 3-51. 3-53.

3-57. Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-59. Time Base Option 001 3-61.

3-63.

3-65.

3-67.

3-69. HP-lB Programming (Option 011) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-79. 9825A Program Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

3-81. HP-lB Programming Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-83. Remote Programming of Diagnostic Mode 6

PERFORMANCE TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4-1.

4-3.

4-5.

4-7.

4-9.

4-11.

4-12.

4-13.

4-14.

4-15.

4-16.

4-17.

4-18. 4-19. 4-27. 4-28. 4-29.

4-30. 4-31.

4-32. 4-33. 4-34. 4-35.

Page

3-4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-18

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

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

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

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

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

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

3-18 3-18

3-19

3-28

3-30

4-1 4-1 4-1 4-1 4-1 4-2 4-2

4-3

4-4

4-5

4-6

4-17

4-18

4-19

4-24 4-26

iii

Model 5342A

Table of Contents

TABLE OF CONTENTS (Continued)

Section

Title

PERFORMANCE TESTS (Continued)

4-36. 4-37. 4-38. 4-39.

4-40.

ADJUSTMENTS 5-1. 5-4. 5-6. 5-8. 5-10. Safety Considerations 5-12. Adjustment Procedures 5-13. 5-17. 5-19. 5-21. 5-28. 5-30. Oscillator Adjustments

5-31. 5-32. 5-33. Option 002 Amplitude Measurement Adjustments 5-34. 5-38. 5-39. Option 002/003 Adjustments 5-40.

5-41. Option 004 Digital-to-Analog (DAC) Adjustments . . . . . . . . . . . . . . 5-13

500 MHz—18 GHz Input Minimum Level and Amplitude

Accuracy Test (Option 002)

10 Hz—500 MHz Input Minimum Level and

Amplitude Accuracy Test (Option 002)

10 Hz—500 MHz Input Maximum

Input Test (Option 002) 10 Hz—500 MHz Input SWR Test (Option 002) Digital-to-Analog Converter (DAC) Output

Test (Option 004)

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

Introduction Equipment Required Factory Selected Components Adjustment Locations

Power Supply Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Main Synthesizer Adjustment Offset Synthesizer Adjustments IF Adjustment Direct Count Adjustment

A24 Standard Oscillator

Option 001 Oven Oscillator (10544A) . . . . . . . . . . . . . . . . . . . . . . 5-9

A16 Adjustments

A27 Adjustments (Resistors A27R9,A27R10) . . . . . . . . . . . . . . . . 5-11

A11, A25 Adjustments (Resistors A11R14, A25R31)

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

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

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

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

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

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

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

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27

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

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

. . . . . . .

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

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

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

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

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

. . . . . . . . . .

Page

4-28 4-29

4-30 4-31

5-10 5-10

5-12 5-12

5-1 5-1 5-1 5-1 5-1 5-1 5-3 5-3

5-4

5-5 5-8

5-8 5-8

VII

Vlll

REPLACEABLE PARTS 6-1. 6-3. 6-5.

6-7.

6-11. Ordering Information

6-14. Direct Mail Order System

6-17. Option Retrofit Kits

MANUAL CHANGES

7-1.

7-3.

7-6.

SERVICE 8-1. 8-3.

8-5.

Introduction Exchange Assemblies Abbreviations and Reference Designations

Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

Manual Changes

Older Instruments

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

Introduction

Schematic Diagram Symbols and Reference Designators . . . . . . . 8-1

Reference Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

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

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

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

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

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

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

6-1 6-1 6-1

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

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

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

6-1 6-4 6-4 6-4 6-4

7-1 7-1

7-1 7-7

8-1 8-1

8-1

TABLE OF CONTENTS (Continued)

Model 5342A

Table of Contents

Section

Vlll

Title

SERVICE 8-7.

Identification Markings on Printed-Circuit Boards

8-11. 8-13.

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-18.

8-20. 8-22.

Signal Names Disassembly and Reassembly

8-24. 8-26.

8-28.

Front Frame Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-30. 8-32.

8-34. 8-36.

Factory Selected Components

8-38. 8-40. 8-42.

8-44. 8-46.

Service Accessory Kit 10842A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18

8-48. 8-50. 8-52.

8-58.

Logic Symbols

8-60. 8-62. 8-64.

8-73. 8-75. 8-77. 8-79.

8-81. 8-83. 8-94.

8-99.

8-101. 8-105.

8-110.

8-112.

8-114.

8-116.

8-120.

8-124.

8-126.

8-128.

8-130.

Page

(Continued)

. . . . . . . . . . . . . 8-2

Assembly Identification

Safety Symbols

Top Cover Removal

Bottom Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

Removal of A1 Display Assembly and A2 Display

Assembly from Front Panel Frame. . . . . . . . . . . . . . . . . . . . . . . 8-13

Replacement of LED’s in Front Panel Switches Removal of U1 Sampler, A25 Preamplifier, and

A26 Sampler Driver

Procedure for Selecting Resistor R15 on

Direct Count Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15

Procedure for Selecting Resistor R16 for Capacitor C10

on Direct Count Amplifier A3 Procedures for Selecting Resistor R16 on

Main Loop Amplifier A9 Procedure for Selecting Resistor A16R2 on

A16 Assembly (Option 002 or 003) . . . . . . . . . . . . . . . . . . . . . . . 8-17

Equipment Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replaceable Parts

Using Extender Board 05342-60036

Logic Concepts

Negation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic Implementation and Polarity Indication . . . . . . . . . . . . . . 8-23

Other Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dependency Notation “C” “G” “V” “F” . . . . . . . . . . . . . . . . . . 8-26

Control Blocks

Complex Logic Devices . . . . . . . . . . . . . . . . . . . . . . . . . . .

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Harmonic Heterodyne Technique . . . . . . . . . . . . . . . . . . . . . .

HP 5342A Overall Operation

FM Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Automatic Amplitude Discrimination . . . . . . . . . . . . . . . . . . . . . . . . . 8-40

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

HP 5342A Block Diagram Description

Direct Count Section Synthesizer Section

Main Loop Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Offset Loop Operation

IF Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Time Base/PSR Section

Control Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Detailed Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . 8-42

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

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

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

. . . . . . . . 8-16

8-4 8-4 8-5

8-6 8-12 8-12

8-12

8-13

8-15

8-16

8-18 8-18 8-20 8-22 8-22 8-22

8-25

8-27

8-28 8-36

8-36

8-39 8-40

8-41

8-42 8-42 8-42 8-43 8-43 8-46 8-46 8-46

Model 5342A Table of Contents

TABLE OF CONTENTS (Continued)

Section

Title

VIII

8-132. 8-138. 8-145. 8-152. 8-154. 8-158. 8-166. 8-172.

8-176. 8-181. 8-190. 8-198 8-202. 8-206.

8-215. 8-225. 8-228. 8-240. 8-242.

8-244.

8-247.

8-257.

8-262.

8-266.

8-269.

8-278.

8-280.

8-282.

8-284.

8-290. 8-294. 8-296. 8-297. 8-300. 8-305. 8-306. 8-310. 8-314. 8-331. 8-340. 8-346. 8-347. 8-349. 8-358. 8-366. 8-369. 8-372.

8-374. 8-375. 8-379.

SERVICE (Continued)

A1 Display Assembly and A2 Display Driver Assembly

Keyboard Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A3 Direct Count Amplifier Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 8-48

A4 Offset VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49

A5 RF Multiplexer Assembly A6 Offset Loop Amp/Search Generator Assembly A7 Mixer/Search Control Assembly

A8 Main VCO Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52

A9 Main Loop Amplifier Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-53

A10 Divide-by-N Assembly

Two Modulus Prescaler Technique . . . . . . . . . . . . . . . . . . . . . . . . 8-55

Counter (Divider) Chain Utilizing 9’s Complement

A11 IF Limiter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A12 IF Detector Assembly

A13 Counter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-59

A14 Microprocessor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Microprocessor Operation . .

A15 Option 011 HP-IB Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-65

A16 Option 002 Amplitude Measurements Assembly and

A16 Option 003 Extended Dynamic Range Assembly . . . . . . 8-65

A17 Timing Generator Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-65

Pseudorandom Sequence Generation . . . . . . . . . . . . . . . . . . . . .

Gate Time Generation

Sample Rate Generation . . . . . . .

A18 Time Base Buffer Assembly

A19, A20, A21 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A22 Motherboard A23 Power Module . . . A24 Oscillator Assembly A25 Preamplifier

A26 Sampler Driver Assembly . . . .

Options Theory (Options 002,003,004, and 011) . . . . . . . . . . . . . . 8-72

Option 002 Amplitude Measurements Overall Theory

Introduction Block Diagram . .

Option 002 Detailed Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

U2 High Frequency Amplitude Assembly (5088-7035)

A27 Low Frequency Amplitude Assembly . . . . . . . . . . . . . . . . . . 8-75

A16 Amplitude Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Option 003 Extended Dynamic Range Option 004 Digital-to-Analog Conversion (DAC) Option 011 Hewlett-Packard Interface Bus (HP-IB)

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interface Registers

Command Decoding ROM’s

Acceptor Handshake . . . . . . . . . . . . . . . . . . . . ..

Source Handshake

Assembly Locations Troubleshooting to the Assembly Level (Standard Instrument) . . 8-84

Troubleshooting Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-73

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

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

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

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

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-60

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

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

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-72

. . . . . . . . . . . . . . . . . . . . . . . . 8-77

. . . .. . . . . . . . . . . ... . . 8-81

. . . . . . . . . . . . . . . . . . . . . 8-83

. . . . . . . . . 8-46

. . . . . . . . . . . . . 8-50

. . . . . . . . .

. . . . . . . . . 8-73

. . . . . . .

. . . . . . . . . . . . . . 8-79

. . . . . . . . . . . . 8-80

Page

8-47

8-49

8-51

8-53

8-56 8-57 8-57

8-60

8-65 8-67 8-68 8-68 8-69 8-71 8-71

8-71

8-73 8-73 8-73

8-75

8-80 8-80

8-82

8-84

8-84 8-85

Model 5342A

Table of Contents

APPENDIX

TABLE OF CONTENTS

References . Maintenance

Additional Authorization List . . . . . . . . C-1

(Continued)

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

Allocation . . . . . . . . . . . . . . . B-1

Page

A-1

vii

Model 5342A

List of Tables

LIST OF TABLES

Table Title

1-1. 1-2. 1-3. 1-4.

3-1.

3-2 3-3. 3-4.

4-1. 4-2. 4-3. 4-4. 4-5.

5-1. 6-1.

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

Model 5342A Specifications . . . .

Equipment Supplied Accessories Available Recommended Test Equipment

HP-IB Interface Capability 5342A Bus Message Usage Address Selection

Option 001 HP-IB Program Code Set

Operational Verification Record Model 5342A Program

Model 9825A Program Description

Sample Printout Performance Test Record

Adjustments

Exchange Assemblies

Abbreviations and Reference Designations

Replaceable Parts Option 001 Replaceable Parts Option 002 Replaceable Parts Option 003 Replaceable Parts Option 004 Replaceable Parts Option 011 Replaceable Parts Manufacturers Code List

Page

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

1-2 1-3

1-4 1-5

3-19 3-20 3-21 3-22

4-9

4-10

4-13 4-15

4-32

5-2 6-1

6-2

6-5 6-37 6-38 6-41 6-42 6-44 6-45

7-1.

8-1. 8-2. 8-3. 8-4.

8-5. 8-6. 8-7. 8-8. 8-9.

8-10. 8-11. 8-12. 8-13. 8-14. 8-15. 8-16. 8-17. 8-18. 8-19. 8-20.

8-21. 8-21A. 8-21B. 8-21C.

Manual Backdating Assembly Identification

Signal Names 10842A Kit Contents

Replaceable Parts for Extender Board 05342-60036 . . . . . . . . . . . . . . . . . . . . 8-18

Overall Troubleshooting Assemblies Tested by Test Mode Probable Failed Assemblies by Test Mode Diagnostic Modes of the 5342A A14 Microprocessor Troubleshooting A19, A20, A21 Power Supply Troubleshooting A1, A2 Keyboard/Display Troubleshooting

A3 Direct Count Amplifier Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 8-104

A13 Counter Troubleshooting A17 Timing Generator Troubleshooting

A8, A9, A10 Main Loop Snythesizer Troubleshooting . . . . . . . . . . . . . . . . 8-113

A11, A12, A25, U1 IF Troubleshooting

A4, A6, A7 Offset Loop Synthesizer Troubleshooting . . . . . . . . . . . . . . . . . 8-122

A26 Sampler Driver Troubleshooting A5 RF Multiplexer Troubleshooting Option 002 Amplitude Measurement Troubleshooting Option 001 HP-IB Troubleshooting Acceptor Handshake (HP-IB) Source Handshake (HP-IB) U23, U26 ROM Table (HP-IB)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

7-1 8-4

8-6

8-18 8-85

8-88 8-89 8-90 8-91 8-97

8-102 8-105

8-109 8-116 8-124

8-125 8-127 8-137 8-137 8-138 8-139

viii

LIST OF FIGURES

Model 5342A List of Figures

Figure

1-1.

2-1. 2-2. 2-3.

3-1. 3-2. 3-3. 3-4. 3-5.

8-1. 8-2. 8-3. 8-4. 8-5. 8-6.

8-7. 8-8.

8-9. 8-10. 8-11. 8-12. 8-13. 8-14. 8-15. 8-16. 8-17. 8-18.

8-19. 8-20. 8-21.

8-22.

8-23. 8-24.

8-25.

8-26. 8-27. 8-28. 8-29. 8-30. 8-31. 8-32. 8-33. 8-34. 8-35. 8-36. 8-37. 8-38.

Title

Model 5342A Microwave Frequency Counter

Line Voltage Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Cable HP Part Numbers versus Mains Plugs Available

Hewlett-Packard Interface Bus Connection . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Front Panel Controls and Indicators Rear Panel Controls and Connectors

Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amplitude Measurements (Option 002) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DAC Operation (Option 004)

Schematic Diagram Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Front Frame, A25, A26, and U1 Removale 10842A Service Accessory Kit Extender Board (05342-60036) Test Points R1, R2, and R3

Extender Board (05342-60036) Schematic Diagram . . . . . . . . . . . . . . . . . . . . . 8-21

Harmonic Heterodyne Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Frequency Relationships HP 5342A Simplified Block Diagram HP 5342A Block Diagram Block Diagram of Synthesizer Section

Timing Diagram of A6 Search Generator Operation . . . . . . . . . . . . . . . . . .

Data Transfer Timing in A10 Circuit

0Filter Timing on A12 IF Detector

A14U21 Expanded Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Memory Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A19, A20, and A21 Power Supply Block Diagram . . . . . . . . . . . . . . . . . . . . . . 8-70

Option 002 Amplitude Measurement Block Diagram . . . . . . . . . . . . . . . . . . 8-74

Option 003 Extended Dynamic Range Block Daigram

5342A Front (A1 Display) View

5342A Rear View . . . . . . . . . . . . . . . . . . . . . . .

5342A Top View (Assembly Locations and Adjustments) . . . . . . . . . . . . . . 8-144

5342A Bottom View, Options Installed

5342A Detailed Block Diagram

A1 Display Assembly and A2 Display Drive Assembly . . . . . . . . . . . . . . . .

Option 004 Display Driver Additions on A2 Assembly . . . . . . . . . . . . . . . . 8-151

A3 Direct Count Amplifier Assembly

A4 Offset VCO Assembly . . . . . . . . . . . . . . . .

A5 RF Multiplexer Assembly

A6 Offset Loop Amp/Search Generator Assembly . . . . . . . . . . . . . . . . . . .

A7 Mixer/Search Control Assembly

A8 Main VCO Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A9 Main Loop Amplifier Assembly

A10 Divide-by-N Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A11 IF Limiter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A12 IF Detector Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A13 Counter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A14 Microprocessor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Option 011 A15 HP-IB Assembly

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

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

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

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-142

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

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

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

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

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

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

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

. . . . . . . . . . 2-2

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

. . . . . . . . . . . . . . 8-20

. . . . . . . . . . . . . . . . . 8-78

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

Page

1-1

2-1

3-5

3-8

3-12

8-3 8-14 8-19

8-37 8-38 8-39 8-44 8-45 8-51 8-54 8-58 8-61 8-64

8-143

8-145 8-147 8-149

8-153 8-155 8-157 8-159 8-161 8-163 8-165 8-167 8-169 8-171 8-173 8-175 8-177

Model 5342A

List of

Figures

LIST OF FIGURES (Continued)

Figure

8-39.

8-40. 8-41. 8-42. 8-43. 8-44. 8-45. 8-46.

Title

Option 002 A16 Amplitude Measurements,

A27 Low Frequency Amplifier, and

U2 High Frequency Amplifier Assemblies

Option 003 A16 Extended Dynamic Range Assembly . . . . . . . . . . . . . . . . .

A17 Timing Generator Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A18 Time Base Buffer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A19, A20, A21, and A23 Power Supply Assembly . . . . . . . . . . . . . . . . . . . . .

A24 Oscillator Assemblies . . . . . . . . . . . .’ . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A25 Preamplifier Assembly

A26 Sampler Driver Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

Page

8-179 8-181 8-183 8-185 8-187 8-189 8-191 8-193

SECTION O

INSTRUCTIONS

TM 11-6625-3014-14

0-1.

SCOPE.

This manual describes Microwave Frequency Counter TD-1225A(V)l/U (fig. l-l) and provides maintenance instructions. Throughout this manual, the TD-1225A(V)l/U is refered to as the Hewlett-Packard (HP) Model 5342A.

0-2.

whether there are new

INDEXES OF PUBLICATIONS.

DA Pam 310-4.

Refer to the latest issue of DA Pam 310-4 to determine

editions,

changes, or additional publications pertaining

to the equipment.

DA Pam 310-7.

Refer to DA Pam 310-7 to determine whether there are

modification work orders (MWO’S) pertaining to the equipment.

0-3.

forms,

FORMS AND RECORDS.

Reports of Maintenance and Unsatisfactory Equipment. Maintenance

records,

and reports which are used by maintenance personnel at all

levels of maintenance are listed in and prescribed by TM 38-750.

Report of Packaging and Handling Deficiencies.

Fill out and forward

SF 364 (Report of Discrepancy (ROD))as prescribed in AR 735-11-2/DLAR

4140.55/NAVSUPINST 4610.33B/AFR 75-18/MCO p4610.19C and DLAR 4500.15.

c. Discrepancy in Shipment Report (DISREP) (SF 361). Fill out and

forward Discrepancy in Shipment Report (DISREP) (SF 361) as prescribed in

AR 55-38/NAVSUPINST 4610.33B/AFR 75-18/MCO P4610.19C and DLAR 4500.15.

0-4.

REPORTING OF EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR).

EIR’s will be prepared using DA Form 2407, Maintenance Request. Instructions for preparing EIR’s are provided in TM 38-750, The Army Maintenance Management System.

EIR’s should be mailed directly to Commander, US Army Communications and Electronics Materiel Readiness Command, ATTN:

DRSEL-ME-MQ, Fort Monmouth, New Jersey 07703.

A reply will be

furnished directly to you.

0-5.

ADMINISTRATIVE STORAGE.

Administrative storage of equipment issued to and used by Army activities

shall be in accordance with TM 740-90-1.

0-6.

DESTRUCTION OF ARMY ELECTRONICS MATERIEL.

Destruction of Army electronics materiel to prevent enemy use shall be in

accordance with TM 750-244-2.

0-1

Model 5342A

General Information

SECTION I

GENERAL INFORMATION

1-1. INTRODUCTION

1-1. This manual provides operating and service information for the Hewlett-Packard Model 5342A Microwave Frequency Counter, shown in Figure 1-1.

1-3. SPECIFICATIONS

1-4. Specifications of the 5342A are listed in Table 1-1.

Figure 1-1. Model 5342A Microwave Frequency

Counter

1-1

Model 5342A

General Information

INPUT 1:

Frequency range: 500 MHz to 18 GHz Sensitivity:

500 MHz to 12.4 GHz -25 dBm

12.4 GHz to 18 GHz

Maximum input: +5 dBm (see Options 002,003

for higher level).

Dynamic range:

500 MHz to 12.4 GHz 30 dB

12.4 GHz to 18 GHz

Impedance: 50 ohms, nominal Connector: Damage level: +25 dBm, peak Coupling:

SWR:

<2:1, 500 MHz—10 GHz <3:1, 10 GHz—18 GHz

FM tolerance:

(wide):

(normal): 20 MHz p-p worst case.

For modulation rates from dc to 10 MHz.

tolerance:

the minimum signal level is not less than the sensitivity specification.

Automatic amplitude discrimination: Automati-

cally measures the largest of all signals present, providing that signal is 6 dB above any signal within 500 MHz; 20dB above any signal, 500 MHz—18 GHz.

Modes of operation:

Automatic:

and displays highest level signal within sensitivity range.

Manual:

±50 MHz to true value.

Acquisition time:

Automatic mode: Normal FM 530 ms worst

case; wide FM 2.4 s worst case.

Manual mode:

INPUT 2:

Frequency range:

Count.

Sensitivity:

50 10 Hz to 520 MHz 25 mV rms,

1 M 10 Hz to 25 MHz 50 mV rms.

Impedance:

nominal.

Coupling: ac Connector: Type BNC female. Maximum input:

dc fuse protected; 1 MW 200V dc +5.0V rms.

Crystal frequency: 10 MHz Stability:

Aging rate: <1 X 10- Short term:

50°C.

Line variation:

nominal.

(TTL compatible); 1.5V peak-to-peak into

50W available from rear panel BNC.

Table 1-1. Model 5342A Specifications

INPUT CHARACTERISTICS

-20 dBm

25 dB

Precision Type N female

dc to load, ac to instrument.

Switch selectable (rear panel)

50 MHz p-p worst case.

Any modulation index provided

Counter automatically acquires

Center frequency entered to within

ms after frequency entered.

10 Hz to 520 MHz Direct

Selectable: 1 MW, <50 pF or 50W

50Ω

3.5V rms (+24 dBm) or 5V

TIME BASE

per month.

External time base:

Requires 10 MHz, 2.0V peakto-peak sine wave or square wave into 1 KW via rear panel BNC connector.

Switch

selects either internal or external time base.

OPTIONAL TIME BASE

(OPTION 001)

Option 001 provides an oven-controlled crystal oscillator time base, 10544A (see separate data sheet), that results in better accuracy and longer periods between calibration.

Crystal frequency: 10 MHz

Stability:

Aging rate:

up.

Temperature:

50°C.

Short term: Line variation:

nominal.

Warm-up:

after turn-on, at 25°C.

AMPLITUDE MEASUREMENT

(OPTION 002)

Option 002 provides the capability of measuring the amplitude of the incoming sine wave signal, and simultaneously displaying its frequency (MHz) and level (dBm). The maximum operating level and the top end of dynamic range are increased to

+20 dBm. Amplitude offset to 0.1 dB resolution may be selected from front panel pushbuttons.

INPUT 1:

Frequency range: 500 MHz—18 GHz, Dynamic range (frequency and level):

-22 dBm to +20 dBm 500 MHz to 12.4 GHz

-15 dBm to +20 dBm 12.4 GHz to 18 GHz

Maximum operating level: +20 dBm Damage level: +25 dBm, peak Resolution: 0.1 dB Accuracy:

±1.5 dB (excluding mismatch

uncertainty).

SWR:

<2:1 (amplitude measurement). <5:1 (frequency measurement).

Measurement time: 100 ms + frequency mea-

surement time.

Display:

Simultaneously displays frequency to 1 MHz resolution and input level. (Option 011 provides full frequency resolution on HP-IB output.)

INPUT 2:

(500 impedance only)

Frequency range: 10 MHz—520 MHz Dynamic range (frequency and level):

-17 dBm to +20 dBm.

Damage level: +24 dBm, peak Resolution: 0.1 dBm. Accuracy:

1.5 dB (excluding mismatch

uncertainty).

SWR:

<1.8:1

Measurement time: 100 ms + frequency mea-

surement time.

Display:

Simultaneously displays frequency to 1

MHz resolution and input level.

1-2

Model 5342A

General Information

Table 1-1.

Model 5342A Specifications (Continued)

EXTENDED DYNAMIC RANGE

(OPTION 003)

Option 003 provides an attenuator that automatically extends the dynamic range of operation for input 1.

INPUT 1:

Frequency range:

500

MHz to

GHz

Sensitivity:

500 MHz to 12.4 GHz -22 dB

12.4 GHz to 18 GHz

Maximum operating level:

-15 dBm

+20

dBm.

Dynamic range:

500 MHz to 12.4 GHz 42 dB

12.4 GHz to 18 GHz

Damage level: SWR:

<5:1

+25

dBm, peak

35 dB

DIGITAL-TO-ANALOG CONVERTER

(OPTION 004)

Option 004 provides the ability to convert any three consecutive displayed digits into an analog voltage output. A display of

put; 999 produces 9.99V full scale.

∅∅∅

produces ∅ V out-

Accuracy: ±5 mV, ±0.3 mV/°C (from 25°C) Conversion Speed:

reading.

Resolution:

10 mV

Output: 5 mA. Impedance <1.0 ohm. Connector: Type BNC female on rear panel.

Accuracy: ±1 count ± time base error.

GENERAL

Resolution:

1 MHz.

Residual stability:

common time base or counter uses external

higher stability time base, <4 X 10-

typcial.

Front panel pushbuttons select 1 Hz to

When counter and source use

rms

Display: 11-digit LED display, sectionalized to

read GHz, MHz, kHz, and Hz.

Self-check:

buttons. Measures 75 MHz for resolution

chosen.

Selected from front panel push-

Frequency offset: Selected from front panel

pushbuttons. Displayed frequency is offset by

entered value to 1 Hz resolution.

Sample rate: Variable from less than 20 ms be-

tween measurements to HOLD which holds display indefinitely.

IF out: Rear panel BNC connector provides 25

MHz to 125 MHz output of down-converted

microwave signal.

Operating temperature:

Power requirements: 100/120/220/240V rms, +5%,

-10%, 48—66 Hz; 100 VA max.

Accessories furnished:

Size: 133 mm H X 213 mm W X 498 mm D

0°C

Power

50°C.

cord,

229

(7½

ft.)

Weight: Net 9.1 kg (20 Ibs.).

Shipping 12.7 kg (28 Ibs.).

1-5. SAFETY CONSIDERATIONS

1-6. This product is a Safety Class I instrument (provided with a protective earth terminal). Safety

information pertinent to the operation and servicing of this instrument is included in appropriate sections of this manual.

1-7. INSTRUMENT IDENTIFICATION

1-8. Hewlett-Packard instruments have a 2-section, 10-character serial number (0000A00000), which is located on the rear panel.

The four-digit serial prefix identifies instrument changes. If

the serial prefix of your instrument differs from that listed on the title page of this manual, there

are differences between this manual and your instrument. Instruments having higher serial

prefixes are covered with a “Manual Changes” sheet included with this manual. If the change

sheet is missing, contact the nearest Hewlett-Packard Sales and Service Office listed at the back of

this manual. Instruments having a lower serial prefix than that listed on the title page, are covered in Section

VII.

1-9. ACCESSORIES

1-10. Table 1-2 lists accessory equipment supplied and Table 1-3 lists accessories available.

Table 1-2. Equipment Supplied

DESCRIPTION HP PART NUMBER

Detachable Power Cord 229 cm (7½ feet long)

8120-1378

1-3

Model 5342A General Information

Table 1-3. Accessories Available

DESCRIPTION

Bail Handle Kit 5061-2002 Rack Mounting Adapter Kit (Option 908) 5061-0057 Rack Mounting Adapter Kit with slot for access

to front connectors from rear. Transit Case 9211-2682 Service

Accessory Kit (refer to paragraph

Microwave Attenuators Signature Analyzer

1-16)

HP PART NUMBER

K70-59992A

Model 10842A

Model 8491B, 8494/5/6H

Model 5004A

1-11. DESCRIPTION

1-12. The 5342A Microwave Frequency Counter measures the frequency of signals in the range of 10 Hz to 18 GHz, with a basic sensitivity of -25 dBm. Signals in the frequency range of 10 Hz to 500 MHz are measured by the direct count method. Signals in the frequency range of 500 MHz to

18 GHz are down-converted to an IF by a heterodyne conversion technique for application to the counter circuits. The unique conversion technique employed results in high sensitivity and FM tolerance in addition to automatic amplitude discrimination. The counted IF is added to the local oscillator frequency to determine the unknown frequency for display.

1-13. OPTIONS

1-14. Options available with the 5342A are described in Table 1-1 and paragraph 3-57. If an option is included in the initial order, it will be installed at the factory and ready for operation

upon receipt. If an option is ordered

for field installation it will be supplied as a retrofit kit. Refer

to Section II for kit part numbers and installation instructions.

1-15. SERVICE EQUIPMENT AVAILABLE

1-16. Extender boards are available for servicing printed circuit assemblies while extended from

the instrument. The extender boards allow assemblies to be extended from their plug-in con-

nectors for monitoring with appropriate test equipment. Extender boards for each assembly are

supplied in Service Accessory Kit 10842A as described in paragraph 8-46.

1-17. RECOMMENDED TEST EQUIPMENT

1-18. The test equipment listed in Table 1-4 is recommended for use during performance tests,

adjustments, and troubleshooting. Substitute test equipment may be used if it meets the required

characteristics listed in the table.

1-4

Table 1-4 Recommended Test Equipment

Model 5342A

General Information

INSTRUMENT

Oscilloscope Signal Generator

Spectrum Analyzer RF inputs from 1 MHz—500 MHz T,A,P DC Voltmeter 20V Range, 0.05V Resolution T,A AC Voltmeter 10 MHz-350 MHz T,A AC Voltmeter 100 kHz, 1% accuracy Logic State Analyzer HP 1740A compatibility

Signature Analyzer 5342A compatibility T Power Splitter DC—18 GHz Logic Pulser Current Tracer

Logic Probe Step Attenuator AP Clips (4) Clip for 14 pin/16 pin IC’s

Isolation Transformer 120V IN — Isolated 120V OUT

Extender Boards 2 X 10 pin

REQUIRED

CHARACTERISTICS

100 MHz bandwidth

10 Hz—10 MHz

10 MHz—2.4 GHz

2 GHz—18 GHz

USE*

T,A,OV,P T,A,OV,P HP 651B

A (Opt. 002)

OV,P

TTL compatibility 1 mA—1 A range TTL compatibility

DC—18 GHz 10 dB steps

2 X 12 pin

2 X 15 pin HP P/N 05342-60032

2 X 18 pin (2)

OV,P

2 X 22 pin (2)

X 24 pin

A 14 Extender

A15 Extender Power Meter Power Sensor

50Ω Termination Microwave Amplifier 1 GHz, >+20 dBm Output Signal Generator Signal Generator

Swept Frequency Analyzer 15 MHz—18GHz Modulator HP 8755B compatibility 15 MHz-18 GHz Detectors 0.1—18 GHz

(2 required) Oscilloscope Mainframe HP 8755B compatibility Directional Coupler 2—18 GHz Directional Coupler 100—500 MHz Signal Generator (Two Microwave sources needed

Mainframe

Bus System Analyzer

*T = Troubleshooting

A = Adjustments

OV = Operational Verification

P = Full Performance Testing

10 MHz—18 GHz 10 MHz—18 GHz

-30 dBm to +20 dBm DC—18 GHz

100 MHz, +20 dBm

>100 MHz,

100 MHz—18 GHz

for automatic amplitude

discrimination test — see

paragraph 4-35)

Control HP-IB lines T (Opt. 011) HP 59401A

>+20 dBm

A,OV,P HP 436A

A,OV,P HP 8481A

P (Opt.

A (Opt. 002) HP 8601A

P,OV,

(Option 002)

RECOMMENDED

MODEL

HP 1740A

HP 8620C/86222A HP 8620C/86290A

HP 141T/8552A/8554B

HP 3465A HP 3406A HP 3400A

T HP 1607A (use

T HP 546A

T HP 547A T HP 545A

T HP P/N 1400-0734 T Allied Electronics

with HP 1740A)

HP 5004A

HP 11667A

HP 8495B

P/N 705-0048

HP P/N 05342-60030 HP P/N 05342-60031

P/N 05342-60033

HP P/N 05342-60034 HP P/N 05342-60035 HP P/N 05342-60036 HP

P/N 05342-60039

HP 909A

(Option 012)

002) HP 489A

HP 3312A

P P P

P P P P

HP 8755B HP 11665B HP 11664A

HP 182T

HP 11692D

HP 778D

HP 8620C Mainframe

1-5

Model 5342A

Installation

SECTION II

INSTALLATION

2-1. INTRODUCTION

2-2. This section contains information for unpacking, inspection, storage, and installation.

2-3. UNPACKING AND INSPECTION

2-4. If the shipping carton is damaged, inspect the instrument for visible damage (scratches, dents, etc.). If the instrument is damaged, notify the carrier and the nearest Hewlett-Packard Sales and Service Office immediately (offices are listed at the back of this manual). Keep the

shipping carton and packing material for the carrier’s inspection. The Hewlett-Packard Sales

and Service Office will arrange for repair or replacement of your instrument without waiting for

the claim against the carrier to be settled.

2-5. INSTALLATION REQUIREMENTS

CAUTION

Before connecting the instrument to ac power lines, be sure that the voltage selector is properly positioned as described below.

2-6.

LINE VOLTAGE REQUIREMENTS. The 5342A is equipped with a power module that con-

tains a printed-circuit line voltage selector to select 100- 120-, 220-, or 240-volt ac operation.

Before applying power, the pc selector must be set to the correct position and the correct fuse must be installed as described

2-7. Power line connections are selected by the position of the plug-in circuit card in the module. When the card is plugged into the module, the only visible markings on the card indicate the line voltage to be used. The correct value of line fuse, with a 250-voIt rating, must be installed after the card is inserted. This instrument uses a 0.75A fuse (HP Part No. 2110-0360) for 100/120-volt operation; a 0.375A fuse (HP Part No. 2110-0421) for 220/240-volt operation.

2-8. To convert from one line voltage to another, the power cord must be disconnected from the power module before the sliding window covering the fuse and card compartment can be moved to expose the fuse and circuit card. See

below.

Figure 2-1.

Figure 2-1. Line Voltage Selection

2-1

Model 5342A

Installation

2-9. Power Cable

2-10. The 5342A is shipped with a three-wire power cable. When the cable is connected to an appropriate ac power source, this cable connects the chassis to earth ground. The type of power cable plug shipped with each instrument depends on the country of destination. Refer to Figure 2-2 for the part numbers of the power cable and plug configurations available.

2-2

Figure 2-2. Power Cable HP Part Numbers versus Mains Plugs Available

WARNING

BEFORE SWITCHING ON THIS INSTRUMENT, THE PROTECTIVE EARTH TERMINALS OF THIS INSTRU-

MENT MUST BE CONNECTED TO THE PROTECTIVE CONDUCTOR OF THE (MAINS) POWER CORD. THE MAINS PLUG SHALL ONLY BE INSERTED IN A SOCKET OUTLET PROVIDED WITH A PROTECTIVE EARTH CONTACT, THE PROTECTIVE ACTION MUST NOT BE NEGATED BY THE USE OF AN EXTENSION CORD (POWER CABLE) WITHOUT A PROTECTIVE CONDUCTOR (GROUNDING).

Model 5342A

Installation

2-11. Operating Environment

2-12. TEMPERATURE. The 5342A may be operated in temperatures from 0°C to +55°C.

2-13. HUMIDITY. The 5342A may be operated in environments with humidity up to 95%. However, it should be protected from temperature extremes which cause condensation in the

instrument.

2-14. ALTITUDE. The 5342A may be operated at altitudes

2-15. STORAGE AND SHIPMENT

2-16. Environment

2-17. The instrument may be stored or shipped in environments within the following limits:

TEMPERATURE . . . . . . . . . . . . . . . . . -40°C to +75°C

HUMIDITY . . . . . . . . . . . . . . . . . . . . . . . . . .

ALTITUDE . . . . . . . . . . . . .

2-18. The instrument should also be protected from temperature extremes which cause condensation within the instrument.

2-19. Packaging

2-20. ORIGINAL PACKAGING. Containers and materials identical to those used in factory packaging are available through Hewlett-Packard offices. If the instrument is being returned to

Hewlett-Packard for servicing, attach a tag indicating the type of service required, return address, model number, and full serial number. Also, mark the container FRAGILE to ensure careful

handling. In any correspondence, refer to the instrument by model number and full serial

number.

2-21. OTHER PACKAGING. The following general instructions should be used for repacking with commercially available materials:

7,620 metres (25,000 feet)

up to 4,600 metres (15,000 feet).

Up to 95%

Wrap instrument in heavy paper or plastic. (If shipping to Hewlett-Packard office or

service center, attach tag indicating type of service required, return address, model

number, and full serial number.)

b. Use strong shipping container. A double-wall carton made of 350-pound test material is

adequate.

Use a layer of shock-absorbing material 70 to 100 mm (3-to 4-inch) thick around all sides

of the instrument to provide firm cushioning and prevent movement inside container.

Protect control panel with cardboard.

d. Seal shipping container securely.

Mark shipping container FRAGILE to ensure careful handling.

f. In any correspondence, refer to instrument by model number

2-22. FIELD INSTALLATION OF

2-23. Procedures for field installation of Options 001,002,003,004, and 011 are described in the

OPTIONS

and full serial number.

following paragraphs.

2-3

Model 5342A

Installation

2-24. Part Numbers for Ordering Option Kits

2-25. To obtain the necessary parts for installation of an option, order by part number as listed below (refer to Section VI for ordering information):

Option

001

002

003

*004

001

If the instrument in which Option 004 is to be installed has a series number 1812 or lower, the U7 ROM on A14 Microprocessor will have to be replaced. Order U7 ROM Part Number 1818-0706 to replace the old U7 ROM (1818-0331).

2-26. Installation of 10 MHz Oscillator Option 001

2-27. Option 001 consists of oven-controlled crystal oscillator time base 10544A, which has a pc card connector. Option 001 is installed in the same connector on the motherboard as the standard oscillator (A24). See Figure 8-44. To install Option 001, proceed as follows:

High Stability Time Base HP Model 10544A Amplitude Measurement Extended Dynamic Range 05342-60201 (Kit) Digital-to-Analog Converter HP-IB I/O 05342-60019 (HP-IB Assy.)

Name Part Number

05342-60200 (Kit)

05342-60202 (Kit)

05342-60029 (HP-IB Input Assy.)

*NOTE

Remove the standard oscillator from A24 connector.

b. Install Option 001 oscillator into A24 connector.

Attach Option 001 oscillator to the motherboard by means of two 6/32X5/16 pan head

screws. Install the screws from the bottom of the motherboard using star washers.

d. Perform Option 001 oscillator adjustment as described in paragraph 5-32.

2-28. Installation of Amplitude Measurement Option 002

2-29. Option 002 consists of U2 High Frequency Amplitude assembly and A27 Low Frequency

Amplitude Assembly modules and the A16 Amplitude Assembly pc board. U2 is connected to the high frequency input of the 5342A, A27 is connected to the low frequency input and both of the modules are connected to the A16 board by the coax wires supplied. See photo of installed option, Figure 8-22, and schematic diagram, Figure 8-39. To install the components proceed as follows:

NOTE

The parts that comprise this option are listed in Table 6-5.

Remove the top and bottom covers and top plate from instrument.

b. Place instrument top down.

At inside front panel, disconnect cables from A1J1,J1J3,J25J1 (IF OUT lNT), and A25J2 (IF

OUT EXT).

d. Solder one end of the white/red/green 14-inch wire (8120-0483) to AT1 feedthrough

capacitor terminal on A25 Preamplifier assembly.

2-4

Install coax assembly 8120-2268 through A22 motherboard from top of instrument at A16

e .

slot. Place the wires through the holes as shown below:

NOTE

Model 5342A

Installation

Prior to installing A27 Low Frequency Amplitude Assembly, connect the wires as described below.

Solder one capacitor terminal on A27.

Place heat shrinkable tubing (0890-0983) over connection at C7,

Place heat shrinkable tubing (0890-0983) over three of the coax wires (red, blue, and

green) that were installed in step e. and solder

Coax

Red

Blue

Green

Apply heat to shrink the tubing at the connections made in step g and h.

Remove attaching nut from front panel N-type input connector and disconnect rigid

coax W1 from J1 on U1 Sampler. Remove W1 from instrument.

Mount A27 Low Frequency Amplitude Assembly in the recessed angle of the casting

behind front frame, see Figure 8-22. Attach A27 to casting with two pan head screws

supplied. Place a star washer under the other screw. The wire previously soldered to A27C10 has a black ground wire attached. Solder the end

of this black wire to the ground lug installed in preceding step.

end of the black/white/blue 14-inch wire (8120-0471) to C7 feedthrough

these wires to the terminals listed below:

Terminal

A27C10

A27C9

A27C8

Solder the free end of white/red/green wire (other end connected to A25AT1 in step d)

to A22 motherboard at XA16B, pin 3 (ATT).

NOTE

Prior to installing U2 High Frequency Amplitude Assembly, connect the color-coded wires as shown below. Place heat shrinkable tubing (0890-0983 for coax and 0890-0706 for single wires) over all connections to U2.

2-5

Model 5342A

Installation

Connect rigid coax (8120-2516) from U2 High Frequency Amplitude Assembly to J1 on Sampler U1. Install U2 input connector through front panel. Fasten with attaching nut.

Solder white/black/red wire (from U2) to A22 motherboard XA16B, pin Solder white/brown/red wire (from U2) to A22 motherboard XA16B, pin

Harness the coax cables and wires with tie wraps supplied. Connect cable 05342-60119 from A27J1 to A1J3. Connect cable A1J3/A27J2 to A27J2.

Reconnect A1J1,J1 (IF OUT INT) and J2 (IF OUT EXT) and harness with tie wrap.

Harness the white cables with tie wraps supplied.

NOTE

The ROM and U2 High Frequency Amplitude

Assembly are supplied as a matched pair and are

included (05342-80005).

Install the ROM (supplied with option) into U3 socket on A16 (05342-60038) board.

Replace resistor R2 on A16 board with a resistor of the value labeled on U2 assembly.

Insert the plug of 8120-2268 cable into mating socket on A16 board (05342-60038) and

install A16 into connector XA16.

Perform the Option 002 adjustments listed under paragraph 5-33 through 5-39 of this

manual.

Perform the operational verification procedures in paragraphs 4-14, 4-15, and 4-17

of this manual.

under one replaceable part number

NOTE

If the instrument does not meet the specified accuracy of ±1.5 dB as described in paragraph 4-14, perform the following procedures.

Replace resistor R6 from the A27 Low Frequency Amplitude Assembly and replace with a resistor of a higher or lower value as shown below. For lower power readings increase the value and for higher power readings decrease the value of resistor R6 as follows:

2-6

dB Change

0.2

0.4

0.6

0.8

1.0

R6 Changes

(ohms)

10 20 30 40 50

Model 5342A

Installation

2-30.

Installation of Extended Dynamic Range Option 003

2-31. Option 003 consists of A16 Extended Dynamic Range Assembly (05342-60037) and U2 Attenuator Assembly (5088-7038). See Figure 8-22 for location of U2 (Option 002 or 003).

NOTE

The parts that comprise this option are listed at the end of Table 6-6.

Remove the top and bottom covers and top plate from instrument.

Place instrument top down.

At inside front panel, disconnect cable from A1J1,A1J3,A25J1 (IF OUT INT), and A25J2

(IF OUT EXT).

Solder one end of the white/red/green 14-inch wire (8120-0483) to AT1 feedthrough

capacitor terminal on A25 Preamplifier Assembly.

Solder free end of white/red/green wire (other end connected to A25AT1 in step d) to

A22 Motherboard at XA16B, pin 3 (ATT). Solder white/bIack/red wire (from U2) to A22 Motherboard XA16B, pin

Solder white/brown/red wire (from U2) to A22 Motherboard XA16B, pin

g. h.

Remove the N-type input connector from front panel and replace with U2 (5088-7038). Connect rigid coax (supplied) from U2 to J1 on Sampler U1.

Install A16 board (05342-60037) into XA16 connector.

Perform the operational verification procedures in paragraphs 4-13 and 4-16

of this manual.

2-32.

Installation of Digital-to-Analog Conversion (DAC) Option 004

2-33. Option 004 consists of an A2 Display Driver Assembly (05342-60028) that contains DAC

circuitry added to the standard A2 circuit. Interconnecting wires are included with the Option 004 retrofit kit (05342-60202). Procedures for installation of Option 004 are as follows:

2-7

Model 5342A Installation

Remove top and bottom covers, front frame and A1-A2 assemblies. Refer to disassembly procedures, paragraph 8-22.

Replace the original A2 board (05342-60002) with Option 004 A2 board (05342-60028) and reassemble unit.

If the series number of the instrument is

1812 or lower, the U7 ROM, 1818-0331 on the

A14 Microprocessor board will have to be replaced with U7 ROM, 1818-0706 as described

in step d. If instrument has the

1818-0706 ROM, proceed to step e.

CAUTION

ROM U7 is a large-scale MOS IC. Its inputs are susceptible to damage by high voltage and by static charges. Particular care should be exercised when servicing this IC or handling it under conditions where static charges can build up.

Remove top plate from 5342A. Remove A14 Microprocessor and replace ROM U7 part

number 1818-0331 with part number 1818-0706. Install A14.

At bottom of 5342A connect coax cable to the connector at the bottom rear of A2 board

labeled D/A OUTP. Solder the other end of this cable to the DAC OUT connector on the rear paneI.

Connect the white/gray wire to the pin (push-on) labeled LDA at bottom rear of A2 Display Driver board. Solder other end of wire to LDA terminal on A22 Motherboard as shown in figure below.

Connect red wire (+15V) and violet wire (-15V) to the proper terminals (push-on pins) on

A2 Display Driver board (see

Figure 8-25, component locator for location). Connect

other end of these wires to terminals on A22 Motherboard as shown in figure below.

2-8

Reassemble instrument and perform operational verification procedures in para-

graph 4-27 of this manual.

2-34.

2-35.

Installation of HP-IB Option 011

Option 011 consist of printed-circuit assembly A15 and interconnection board A29. The

interconnection board mounts inside the 5342A rear panel and is connected to A22 Motherboard via a cable strap. Procedures for installation of Option 011 are as follows (see photo of installed option, Figure 8-22):

Remove top and bottom covers and top panel from the 5342A.

a. b. Insert A15 assembly into A15 slot. See Figure 8-21 for location.

If 5342A is equipped with Option 001 Oscillator, remove oscillator assembly by removing

two attaching screws from A22 Motherboard.

NOTE

Model 5342A

Installation

In the following step, make sure switch (A29S1) is located as shown

Insert the A29 Interconnection board (05342-60019) into the rear panel slots provided

(from inside). Screw the two mounting studs (0380-0644) and washers (2100-3171) into the HP-IB connector to attach the board to the rear panel,

Connect the plug of the cable strap from A29 to J2 on A22 Motherboard with arrow on

installed plug pointing toward front panel.

Perform the Option 011 HP-IB Verification in paragraph 4-19 of this manual. Refer to paragraph 2-36 for HP-IB interconnection data and to paragraph 3-69 for

programming information.

2-36. HP-IB Interconnections

2-37. HEWLETT-PACKARD INTERFACE BUS. Interconnection data concerning the rear panel

HP-IB connector is provided in Figure 2-3. This connector is compatible with the HP 10631A/

B/C/D HP-IB cables. The HP-IB system allows interconnection of up to 15 (including the controller) HP-IB compatible instruments. The HP-IB cables have identical “piggy back” connectors on both ends so that several cables can be connected to a single source without special adapters or switch boxes. System components and devices may be connected in virtually any configu-

ration desired. There must, of course, be a path from the calculator (or other controller) to every device operating on the bus. As a practical matter, avoid stacking more than three or four cables on any one connector. If the stack gets too large, the force on the stack produces great leverage

which can damage the connector mounting. Be sure each connector is firmly (finger tight)

screwed in place to keep it from working loose during use.

that the address

in Figure 8-20.

2-38. CABLE LENGTH RESTRICTIONS. To achieve design performance with the HP-IB, proper

voltage levels and timing relationship must be maintained. If the system cable is too long, the

lines cannot be driven properly and the system will fail to perform properly. Therefore, when

interconnecting an HP-IB system, it is important to observe the following rules:

The total cable length for the system must be less than or equal to 20 metres (65 feet).

a. b. The total cable length for the system must be equal to or Iess than 2 metres (6.6 feet) times

the total number of devices connected to the bus. The total number of instruments connected to the bus must not exceed 15.

2-39. 5342A Listen Address

2-40. The 5342A contains a rear panel HP-IB Instrument address selection switch. There are five

setting and changing the listen address are provided in Section III of this manual along with

programming codes.

2-41. HP-IB Descriptions

2-42. A description of the HP-IB is provided in Section Ill of this manual, A study of this infor-

mation is necessary if the user is not familiar with the HP-IB concept. Additional information concerning the design criteria and operation of the bus is available in IEEE Standard 488-1975, titled “IEEE Standard Digital Interface for Programmable Instrumentation”.

2-9

Model 5342A Installation

2-10

Figure 2-3. Hewlett-Packard Interface Bus Connection

Model 5342A

Operation

SECTION Ill

OPERATION

3-1. INTRODUCTION

3-2. This section contains operating information including operating characteristics, descrip-

tions of controls and indicators, and operating procedures.

3-3. OPERATING CHARACTERISTICS

3-4. The following paragraphs describe the operating ranges and modes, resolution, sample

rate, AM and FM characteristics, and auto-amplitude discrimination. Front panel controls and indicators are described in Figure 3-1, rear paneI controls and connectors are described in Fig- ure 3-2. Operating procedures are explained in Figure 3-3. Amplitude measurements (Option

002) are described in Figure 3-4. DAC operation (Option 004) is described in Figure 3-5.

3-5. Operating Ranges

3-6. There are two basic operating ranges: 10 Hz to 500 MHz and 500 MHz to 18 GHz.

Frequencies in the lower range are measured directly while measurements in the 500 MHz to 18 GHz range are made indirectly by a harmonic heterodyne down-conversion technique.

Provision is made to select either range by a front-panel slide switch. A separate input connector

is provided for each range. When the range switch is in the 10 Hz—500MHz position, the signal at the BNC connector is routed to the direct count circuits of the 5342A. In this range, input impedance is selectable via the

range, the input signal is applied via the front-panel type N connector to the down-conversion circuits of the 5342A.

50Ω−1 ΜΩ switch. When the range switch is in the 500 MHz—18 GHz

3-7. Resolution Keys

3-8. The best case resolution is the value represented by the least significant digit (LSD) in the

display. In the 5342A, a maximum resolution of 1 Hz can be selected (by the pushbutton keys on

the front panel labeled in blue, preceded by the blue key being pressed). The display is divided

into four sections for ease of determining GHz,MHz,kHz,and Hz resolution. Half-sized

used as space fillers within a section to improve interpretation of the display. For example, a

signal measured to 100 kHz resolution will be displayed thus:

3-9. The pushbutton keys on the front panel under the RESOLUTION label are used for other

purposes when the blue key is not in effect (has not been pressed). When the blue key has not

been pressed, the keys are defined by the black number on the keys and are used to enter fre-

quency offsets, manual center frequencies, and amplitude offsets as described in Figure 3-1.

3-1

Model 5342A Operation

3-10. CHECK, DAC, and ENTER keys

3-11. The CHECK, DAC, and ENTER keys are used as described in Figure 3-1.

3-12. FREQ Keys

3-13. Two of the pushbutton keys on the front paneI under the FREQ label are used to select the automatic or manual mode of operation. The other keys in this section of the keyboard control

the use of the RESOLUTON keys. Use of these keys is described in detail in Figure 3-1.

3-14. Automatic Mode

3-15. The automatic mode of operation is selected by pressing the AUTO key. Input signals in

the 500 MHz—18 GHz range are acquired, measured, and displayed automatically. When power

is initially turned on, the 5342A goes into this mode automatically.

3-16. Manual Mode

3-17. The manual mode of operation is selected by pressing the MAN (MHz) key. To operate in

this mode, input signals in the 500 MHz-18 GHz range must be known to within 50 MHz and this

frequency (called the manual center frequency) must be entered into the display prior to the measurement. Use of the manual mode is described in detail in Figure 3-3.

3-18. Offset Frequencies

3-19. It is sometimes desirable to add or subtract a constant to\from a frequency measurement. For example, by measuring a radio IF and knowing the LO, the counter can display the RF input when the LO frequency is entered as a positive offset. It may be easier to tune an oscillator to a specific frequency if the desired frequency is entered as a negative offset and the oscillator tuned until the counter reads zero. Frequency offsets are described in Figure 3-3.

3-20. Amplitude and Offset Measurements

3-21. When Amplitude Option 002 is installed, the amplitude is displayed in addition to the fre-

quency of the input signal. The frequency is displayed to 1 MHz resolution in the five leftmost

digits and the amplitude is displayed to 0.1 dB resolution in the four rightmost digits of the display. An arbitrary value can be selected as an amplitude offset and can be added to or subtracted from the measured value as described in Figure 3-4.

3-22. Digital-to-Analog Converter (DAC) Operation

3-23. When DAC Option 004 is installed, any three consecutive digits of the display can be selected and converted to a corresponding analog voltage output. The voltage is available at the BNC connector on the rear panel (labeled DAC OUT) and is between example, if the selected digits are output is 9.99 volts dc. Operating procedures are listed in Figure 3-5.

3-24. SET, RESET, RECALL, and CHS Keys

∅∅∅ the output is ∅ volts and if the selected digits are 999 the

∅ and 9.99 volts dc. For

3-2

3-25. The SET, RESET, RECALL, and CHS keys allow offsets and center frequencies to be entered, reset the measurement process, recall previous values, and change the sign of offsets as described in Figure 3-3.

3-26. SAMPLE RATE, GATE, and REMOTE

3-27. The SAMPLE RATE control adjusts the deadtime between the end of one measurement and the start of the next measurement. The duration of the measurement is determined by the

Model 5342A

resolution selected. The SAMPLE RATE is variable between <20 ns and HOLD. In HOLD position the display will hold the measurement displayed indefinitely.

3-28. The GATE indicator is lit during the measurement interval (gate time) when the counter’s gate is open and accumulating counts.

Operation

3-29. The REMOTE indicator

3-30.

AM Tolerance

3-31. The 5342A will measure carrier frequencies containing amplitude modulation index provided the minimum voltage of the signal is not less specification of the 5342A.

3-32.

FM Tolerance

3-33. The 5342A will measure carrier frequencies which are modulated in frequency such as a microwave radio carrier. The FM tolerance is the worst case FM deviation which can be present without affecting the counters ability to acquire the signal. If the deviations about the carrier are symmetrical, then the counter averages out the deviations to measure the actual carrier frequency. The FM tolerance is determined by the position of the CW-FM switch on the rear panel. The CW position provides FM tolerance of 20 MHz peak-to-peak. The FM position provides a tolerance of 50 MHz peak-to-peak but results in slower acquisition time (2.4 seconds compared to 530 milliseconds for CW position).

is lit when the 5342A is in remote operation (Option 011 installed).

modulation to any than the sensitivity

NOTE

Most measurements should be made with the rear

panel FM/CW switch in CW position. The FM

position should be used only when the input signal

has significant amounts of FM (>20 MHz p-p). In-

correct measurements may result if the FM position is

used with a stable input (non-FM) signal which has

been locked to the counter’s time base.

3-34. Automatic Amplitude Discrimination

3-35. The automatic amplitude discrimination feature allows the 5342A to acquire and display

the highest level signal within its sensitivity range. The highest level signal must be 20 dB greater in amplitude than any other signal present. Typical operation is approximately 10 dB. This feature is useful for discriminating against spurious signals and harmonics.

3-36. MAXIMUM INPUT SIGNAL POWER

CAUTION

Do not exceed

type

connector

+25

dBm (peak) of input power at the

(500 MHz–18

GHz). Damage to the

internal sampler may occur. Refer to paragraph 3-37

for detailed explanation.

3-37. The 5342A will function within specifications for 500 MHz-18 GHz signal inputs up to +5 dBm (standard unit). For measuring higher level inputs, refer to the options described in para-

graphs 3-61 and 3-63. Under no circumstances should the input level to the 5342A exceed +25 dBm. If the input power exceeds this Ievel, damage to the internal sampler may occur and the sampler is expensive to replace. Measurements from +5 to +25 dBm are not recommended as false readings may occur. When signal levels exceed +5 dBm external attenuators should be used to attenuate the signal. Options 002 and 003 can extend the range to +20 dBm.

3-3

Model 5342A

Operation

3-38. The 10 Hz—500 MHz direct count input BNC connector is fuse-protected for a maximum input level of 3.5V rms (+24 dBm).

3-39.

3-40. Consideration should be given to input cable losses at higher frequencies. For example, a 6-foot section of RG-214/U coaxial cable has about 15 dB loss at 18 GHz. Such losses must be taken into consideration along with the sensitivity specifications given in Table 1-1.

3-41. CONTROLS, INDICATORS, AND CONNECTORS

3-42. Figure 3-1 describes the front panel controls, indicators, and connectors. Figure 3-2 describes the rear panel connectors and controls.

INPUT CABLE CONSIDERATIONS

WARNING

BEFORE THE INSTRUMENT IS SWITCHED ON, ALL PROTECTIVE EARTH TERMINALS, EXTENSION CORDS, AUTOTRANSFORMERS

CONNECTED TO IT SHOULD BE CONNECTED TO A PROTECTIVE EARTH GROUNDED SOCKET. ANY INTERRUPTION OF THE PROTECTIVE EARTH GROUNDING WILL CAUSE A POTENTIAL SHOCK

HAZARD THAT COULD RESULT IN PERSONAL

INJURY.

AND DEVICES

ONLY FUSES WITH THE REQUIRED RATED CUR-

RENT AND SPECIFIED TYPE SHOULD BE USED. DO NOT USE REPAIRED FUSES OR SHORT CIRCUITED FUSEHOLDERS. TO DO SO COULD CAUSE A SHOCK OR FIRE HAZARD.

CAUTION

Before the instrument is switched on, it must be set to

the voltage of the power source, or damage to the

instrument may result. (Refer to paragraph 2-6.)

3-43.

OPERATING PROCEDURES

3-44. Figure 3-3 illustrates operating procedures for the standard 5342A. Self-check procedures

are also given in Figure 3-3. An operators keyboard check is given in paragraph 3-45. Operating

procedures for Amplitude Option 002 are listed in Figure 3-4,

Figure 3-5.

and for DAC Option 004 in

3-4

Model 5342A

Operation

DISPLAY Digits:

The display contains 11 digit positions, two digits for frequencies in GHz and three digits each for

MHz, kHz, and Hz. (The Hz digits position is used to display dBm when Amplitude Option 002 is installed.)

Annunciators:

-Sign

OVN indicator Oven monitor indicates when crystal oscillator oven is on (warming). When warmed-up, light goes out (Option 001 only).

dBm indicator 002 installed). pressing AMPL key and displayed in Hz portion of display. The fourth digit from the right displays a — sign for signals below 0 dBm.

* indicator the wide-band mode which provides wider FM (50 MHz p-p) tolerance.

FREQ Keys

The FREQ keys select the mode of operation and control the display.

When lighted, indicates a negative frequency offset has been entered into display (MHz).

lighted, indicates amplitude of input signal is being measured (Option

When lighted, indicates the rear panel CW-FM switch is in FM position. This selects

NOTE

Some keys are equipped with center indicator lights that serve as

“prompters” to the user. A blinking indicator light states a “ready” condition for the key function that was selected and the instrument is waiting for a mode or number to be entered. A steady indicator light states that the key function that was selected is in operation.

AUTO key. Selects the automatic mode of operation to acquire and display input signal frequencies in the 500 MHz-18 GHz range. The instrument goes into this mode when power is turned on.

MAN (MHz) key. Selects manual mode for input signal frequencies in the 500 MHz—18 GHz range. Input signal frequency must be known (within 50 MHz) and entered into display via the blacknumbered keys.

Figure 3-1. Front Panel Controls and Indicators

3-5

Model 5342A Operation

AMPL key. Selects amplitude mode (when Option 002 is installed). The amplitude of the input signal is displayed in the four rightmost digits of the display to a resolution of 0.1 dBm. The frequency of the input signal is displayed in the five leftmost digits of the display.

OFS dB key. After pressing the SET key, the OFS dB key is pressed prior to entering an offset value in dB via the digit keys. (Digit keys are labeled in black numbers under RESOLUTION.) Indicates selection of amplitude offset mode when lighted and adds amplitude offset to measured amplitude (Option 002).

OFS MHz key. After pressing the SET key, the OFS MHz key is pressed prior to entering an offset value via the digit keys. (Digit keys are labeled in black numbers under RESOLUTION.) Indicates selection of frequency offset mode when lighted and adds frequency offset to measured frequency.

RESOLUTION keys:

The resolution keys select the display resolution (according to the blue labeling above each key) after the blue key is pressed. The keys are defined by the black number labeled on the key when entering offsets and manual center frequencies.

Blue key. Pressing this key activates the blue-labeled functions of the RESOLUTION keys.

RESET key. Clears the display and restarts a measurement. Clears any blinking lights in key center

indicators.

SET key. Must be pressed prior to selecting OFS dB, OFS MHz or MAN (MHz). The SET condition is indicated by lighted segments in the GHz digits of the display. This indicates that a center frequency, offset frequency, or amplitude offset may be entered into the display.

RECALL key. Recalls stored memory information into display. The MAN (MHz), OFS dB, or OFS MHz keys, if held in after RECALL is pressed, will result in a display of previously entered or computed information.

NOTE

Information stored in memory (by digit keys) after MAN (MHz) key is

pressed is available for display until AUTO mode is selected. Then the center frequency determined by the automatic measurement overrides the manual information.

NOTE

An offset value is an arbitrary value selected for entry into the display to be added or subtracted from a measured value.

CHECK key. After pressing the blue key, the CHECK key is pressed to perform a self-check of the instrument. The display will indicate 75 MHz for proper operation. Press RESET to exit self-check.

NOTE

The instrument must not have an input signal connected at the

500 MHz-18 GHz input to perform the self-check.

3-6

ENTER key. Used to enter digits for manual center frequencies or offsets into memory via blacknumbered keys. After the digits have been selected, ENTER key is pressed to signal the end of the digit sequence.

LINE switch. In ON position, applies power to all circuits except the crystal oven (Option 001 installed). The crystal oven connects through a separate transformer, a thermal circuit breaker and fuse directly to the ac line. This allows the oven to maintain its operating temperature and accuracy when the LINE switch is in STBY position, thereby eliminating warmup delays.

SAMPLE RATE control. Adjusts the interval between measurements from 20 ms to HOLD. When

rotated to HOLD will hold display indefinitely. GATE indicator. Indicates when counters main gate is open and a measurement is in progress. REMOTE indicator. Illuminates when counter is in remote operation. 50Ω−1 ΜΩ switch. Selects input impedance for adjacent 10 Hz-500 MHz input connector. 10 Hz-500 MHz, 500 MHz-18 GHz switch. Selects either low or high frequency range input

connector. BNC Input Connector. Accepts 10 Hz-500 MHz input for direct count measurements. Measurements

made at this input require that the range switch is set to the 10 Hz-500 MHz position. Sensitivity is listed in Table 1-1.

Type N Input Connector. Input for measurements in the 500 MHz-18 GHz range. Measurements made at this input require that the range switch is set to the 500 MHz-18 GHz position. Sensitivity

is listed in Table 1-1.

Figure 3-1. Front Panel Controls and Indicators (Continued)

Model 5342A

Operation

PROCESSOR INTERFACE connector A22W4JI. Not used. This connector is part of cable W4

which is connected to A22 motherboard as an interface to the A14 Microprocessor address and

data lines. This interface is provided for future use with companion instruments.

position of digital input/output connector when instrument is equipped with Hewlett-Packard Interface Bus (HP-1B) Option 011. Refer to paragraph 3-69 for details.

Position of ADDRESS switch when instrument is equipped with Hewlett-Packard Interface Bus (HP-IB) Option 011. Refer to paragraph 3-72 for details.

AC Power Module. Input power module consisting of an IEC approved connector, a fuse

(0.75 amp for 100/200-volt operation, 0.375 for 220/240-volt operation) and a p

voltage selector. Refer to paragraph 2-6 for details.

CW-FM selector switch. Selects a short or long pseudorandom sequence (prs). The CW position provides a short prs (or narrow mode) with FM tolerance of 20 MHz p-p. The FM position provides a long prs (or wide mode) with FM tolerance of 50 MHz p-p.

NOTE

Most measurements should be made with the rear panel FM/CW switch in the CW position. The FM position should be used only when the input signal has significant amounts of FM (>20 MHz p-p).

lNT/EXT selector switch. Selects the internal 10 MHz crystal oscillator signal or an external

6. 10 MHz source for the time base circuit. The external source must be connected to the adjacent connector (7).

NOTE

[f the lNT/EXT switch is switched and causes momentary loss of

clock, the microprocessor may hang up and cause the display to stop

counting. To recover, press LINE switch to STBY then to ON.

EXT FREQ STD connector. Accepts 10 MHz external time base signal when INT/EXT switch is in EXT position.

FREQ STD OUT connector. Supplies a 10 MHz squarewave output at 1.5 volts peak-to-peak. IF OUT connector. provides the intermediate frequency (IF) output of the Preamplifier circuit

for test or monitor of the IF.

10.

DAC connector. Provides the output voltage of the digital to analog converter when the Option 004 is installed.

C card line

Figure 3-2. Rear Panel Controls and Connectors

3-7

Model 5342A Operation

PRELIMINARY PROCEDURES

1. On rear panel: a. Set lNT/EXT to INT position. b. Set CW/FM switch to CW. Refer to paragraph 3-33 for detailed description.

c. On ac power module, check for proper fuse (0.75 amp for 100/120-volt operation, 0.375

amp for 220/240-voh operation) and check position of pc line voltage selector (refer to paragraph 2-6 for detailed description).

d. For remote operation, refer to paragraph 3-69 for explanation of HP-IB programming and

address switch settings on rear panel (for 5342A’s equipped with Option 011).

2. On front panel, set LINE switch to ON position.

Do not exceed +25 dBm peak of input power at the type N connector (500 MHz-18 GHz). Damage to the internal sampler may

occur.

NOTE

When the input signal level to the type N connector exceeds approximately +5 dBm, each digit in the display becomes a minus sign (-) to indicate overload. For Options 002,003, this threshold is approximately +20 dBm.

The 10 Hz-500 MHz direct count input BNC connector is fuseprotected for a maximum input level of 3.5V rms (+24 dBm).

NOTE

The fuse for the 10 Hz-500 MHz input is located on the A3 Direct

Count Amplifier assembly.

3-8

Figure 3-3. Operating Procedures

Connect input signal to appropriate input connector according to frequency requirements (BNC for 10-500 MHz, type N for 500 MHz-18 GHz) and set frequency range switch accordingly.

For input signals connected to BNC connector (10-500 MHz): set the 50Q-1 MQ switch as required. This switch has no effect on input signals connected to the type N connector (500

MHz-18 GHz). Press blue key, then press blue-labeled RESOLUTION key for desired resolution.

NOTE

Half-sized are used as fillers in the display to facilitate display interpretation.

Adjust SAMPLE RATE control for desired interval between measurements.

KEY INDICATORS

Indicator LED’s in the center of some keys are used as “prompters” by the operator, as follows:

Blinking Indicator

A blinking LED in a key is a “ready” condition for that key function.

It indicates it is waiting for an entry via the keyboard. To clear the con- dition, press RESET.

Steady Indicator

A steady “on” LED in a key is an indication that the key function is in effect. To clear the condition, press the key. (The AUTO Key is cleared

by pressing MAN (MHz) and vice versa.)

Model 5342A

Operation

SELF-CHECK PROCEDURE

Perform the self-check as follows (no input signal connected and SAMPLE RATE full

CCW):

The manual center frequency is entered (and displayed) with 1 MHz

resolution and must be within so MHz of the input signal frequency (connected to 500 MHz—18 GHz connector).

Figure 3-3. Operating Procedures (Continued)

3-9

Model 5342A

Operation

3-10

Figure 3-3. Operating Procedures (Continued)

AUTOMATIC OFFSETS

Example

subsequent measurements:

- To “hold” a measurement and use it as a negative offset in

Rotate SAMPLE RATE cw to HOLD

Rotate SAMPLE RATE ccw to normal

NOTE

The measured frequency will now be negatively offset by the frequency

captured when in HOLD.

Model 5342A

Operation

RESET

Pressing key clears the display and initiates a new measurement

without clearing stored values of offset or center frequencies. Clears any blinking (ready state) key indicators, but does not clear steady

state indicators. 5342A maintains current operating modes.

Figure 3-3. Operating Procedures (Continued)

3-11

Model 5342A Operation

3-12

Figure 3-4. Amplitude Measurements (Option 002)

Model 5342A

Operation

Figure 3-5. DAC Operation (Option 004)

3-13

Model 5342A Operation

3-45.

3-14

Model 5342A Operation

3-15

Model 5342A Operation

3-47. ERROR CODE DISPLAYS

3-48. Error codes are displayed by the 5342A to indicate circuit malfunctions in the instrument and to indicate operator (procedure) errors.

3-49. Instrument Error Displays

3-50. When power is applied to the 5342A, check-sum routines are automatically performed. if a routine fails, an error code is displayed to indicate the circuit fault area as follows:

3-16

NOTE

If any of the above codes are displayed. refer to the

troubleshooting procedures in Table 8-5.

3-51.

Operator Error Displays

3-52.

Model 5342A

Operation

3-17

Model 5342A Operation

3-53.

3-54.

displayed as:

3-55. A sequence error (for example, pressing a digit key before pressing a function key) will be

displayed as:

3-56. For detailed descriptions of error codes, refer to Table 8-5.

3-57. OPTIONS

Limit Errors and Sequence Errors

A limit error (for example, setting a manual center frequency less than 500 MHz) will be

3-58, The operating characteristics of the 5342A are affected by the addition of any of the options described in the following paragraphs.

3-59. Time Base Option 001

Option 001 provides an oven-controlled crystal oscillator time base (Model 10544A) that

3-60.

results in higher accuracy and longer periods between calibration (refer to Table 1-1). The oven temperature is maintained when the 5342A LINE switch is in either the ON or the STBY position (provided the instrument is connected to the power mains). When the OVN indicator in the display is lit, the oven is on (warming). When the oven is at the proper temperature, the OVN indicator goes out.

3-61. Amplitude Option 002

3-62. The amplitude option provides the capability of measuring the amplitude of the input signal and simultaneously displaying the frequency (5 leftmost digits) and the amplitude level in dBm (4 rightmost digits). The maximum operating level of +5 dBm for the standard 5342A is extended to +20 dBm for Option 002. The frequency is displayed to a resolution of 1 MHz and the level is displayed to a resolution of 0.1 dBm, The sensitivity of the 5342A with Option 002 is approximately 3 to 5 dB less than the standard 5342A, depending upon frequency.

3-63.

Extended Dynamic Range Option 003

3-64. The extended dynamic range option extends the maximum operating level of + 5 dBm for the standard 5342A to +20 dBm for Option 003 by insertion of an attenuator at the input (ahead of the sampler), The insertion loss of the attenuator results in a sensitivity decrease of approximately 3 to 5 dB, depending upon the frequency of the signal.

3-65.

HP-IB Interface Option 011

3-66. The Hewlett-Packard Interface Bus (HP-IB) Option 011 allows the functions of the 5342A

to be controlled remotely and allows measurement data to be ouptut to the bus, Programm-

ing information for Option 011 is given in paragraphs 3-69 through 3-80.

3-18

Model 5342A

Operation

3-67. Digital-to-Analog Converter (DAC) Option 004

3-68. The DAC option allows selection of any three consecutive digits in the display and con-

version of these digits to an analog voltage. The analog voltage is available at a rear panel con-

nector. The digits are converted to a voltage of from 0 to 10 volts, corresponding to the digits

selected. Digits 000 produce 0 volts, digits 999 produce 9,99 volts, fullscale into 15 kilohms.

3-69. HP-IB PROGRAMMING (OPTION 011)

3-70. The capability of a device connected to the HP-IB is specified by its interface functions. Table 3-1 lists the interface functions of the 5342A using the terminology of IEEE Standard

488-1975 (Appendix C). Interface functions provide the means for a device to receive, process,

and send messages over the HP-19, Procedures for verification of proper operation of Option 011 HP-IB are contained in paragraphs 4-19 through 4-26.

Interface Function

Subset Identifier

SH1

AH1

SRI

RL1 PP0

DCI

DT1

Table 3-1. HP-/B Interface Capabilitv

Interface Function Description

Complete source handshake capability.

Complete acceptor handshake capability.

Talker (basic talker, serial poll, talk only mode, does not unaddress to talk if

addressed to listen).

Listener (basic listener, no listen only mode, doe not unaddress to listen if

addressed to talk), Service request capability. Complete remote/local capability. No parallel poll capability. Device clear capability. Device Trigger capability. No controller capability. One unit load.

3-71. There are 12 basic messages which can be sent over the interface. Table 3-2 lists each bus message, a description of the message, how the 5342A uses that message, and examples of 9825A implementation of the messages.

3-72. The 5342A must be assigned a bus address. Table 3-3 gives the allowable address switch settings.

3-73. Table 3-4 gives the program code set for the 5342A, Frequency and amplitude mode , selection, manual center frequency setting, frequency and amplitude offset mode selection, frequency and amplitude offset setting, resolution selection, range selection, FM/CW mode selection, and automatic offsets are all analogous to the corresponding front panel operations described previously.

3-74. There are four sample rate modes T0-T3. In T0, the sample rate is determined by the setting of the front panel SAMPLE RATE control, In T1, the counter is in hold. To trigger a measurement, a trigger message must be sent. In T2, the counter ignores any sample rate run-down and initiates a new measurement as soon as the previous measurement is over. In T3, the counter takes a measurement and holds until the next T3 or trigger message.

3-19

Model 5342A

Operation

Message

Data

Trigger

Clear

Remote

Local

Lockout

Clear

Lockout

and local

Require

Service

Status

Status Bit A single bit of device-dependent

Control

Abort

Byte

Pass

Table 3-2. 5342A Bus Message Usage

Description

Transfers device-dependent information from one device to one or more devices on the bus.

Causes a group of selected devices to simultaneously initiate a set of devicedependent actions

Causes an instrument to be set to a predefined state (a certain range, function, etc.).

Permits selected devices to be set to remote operation, allowing parameters and device characteristics to be controlled by Bus Messages.

Causes selected devices to return to local (front panel) operation.

controls of selected devices. Returns all devices to local (front

panel) control and simultaneously clears the Local Lockout Message,

Indicates a device’s need for interaction with the controller.

Presents status information of a particular device; one bit indicates whether or not the device currently requires service, the other 7 bits (optional) are used to indicate the type of service required.

status information which may be logically combined with status bit information from other devices by the controller.

Passes bus controller responsibilities from the current controller to a device which can assume the Bus supervisory role.

Unconditionally terminates Bus communications and returns control to the system controller.

5342A Use

Sends measurement data. See

paragraph 3-77 for output format. Accepts program codes. See Table 3-4 for code set.

Starts a new measurement.

Same as front panel RESET. Clears internal count and starts

new measurement.

5342A goes to remote if REN is true and addressed to listen. In

absence of program data, re-

mote operation is according to the state of the front panel settings just prior to going to

remote. Goes to local front panel con-

trol. In absence of front panel data, local operation is accord-

ing to the state of the remote data just prior to going to local.

Disables front panel RESET.Disables local (front panel)

5342A remains in remote.

Local lockout cleared and returns to local front panel control

Pulls on SRQ to indicate end of a

measurement.

In serial poll mode, 5342A out-

puts decimal 80 (01010000) to

indicate end of measurement,

Does not use

Clears Talk, Listen, Serial Poll

Enable registers on 5342A HP-IB

interface. Front panel annunci-

ators do not change, however,

Sample 9825 Statements (5342A set to Address 02)

red 702, A

wrt 702, “AUSR4”

trg 7 or

trg 702

clr 7 or

clr 702

702

rem

IcI 702

llo7

Icl 7

rds(7)-A

if bit (7, A)

7=1 if SRQ true)

(bit

rds (702)-A

(if A=80, then 5342A is

ready to output)

cli 7

3-20

Table 3-3. Address Selection

Model 5342A Operation

3-21

Model 5342A

Operation

Table 3-4. Option 011 HP-IB Program Code Set

3-22

Table 3-4. Option 011 HP-IR Program Code Set (Continued)

Model 5342A

Operation

3-75. ln the“output only when addressed” mode, the counter pulls SRQ at the end of a measurement and then checks to see if it has been addressed to talk, If not, SRQ is cleared and it starts the next measurement. and-starts the next measurement.

at the end of a measurement and waits in a loop until it has been addressed to talk. When it is

SRQ

If it has been addressed to talk, it outputs the measurement, clears SRQ,

In the “wait until addressed” output mode, the counter pulls

addressed to talk, it outputs the measurement, clear SRQ and starts the next measurement,

NOTE

[f the counter is placed in the HOLD (T1) mode, triggered, then addressed to talk, be sure to use the Wait Until Addressed (ST2) output mode. If not, then for short gate times the measurement may be completed before the controller addresses the counter to talk and the counter will discard the measurement result and hang up the bus.

3-76. The 5342A executes each complete program code as it is received just as if the microprocessor were receiving the data from the front panel keyboard, Program code strings should

be in the same order as they would be if being entered from the front panel. When a data byte is sent to the 5342A HP-IB Option 011, the HP-IB interface stores the byte and sends an interrupt to the microprocessor which reads in the byte. If the byte does not complete a program code, then

the microprocessor waits for the next byte(s) until a complete code is sent (for example, SR5 is a

complete code but SR is not). After a complete code is received, the microprocessor executes the

code and begins the measurement. If more codes are in the string, another interrupt is generated. For example, if the string “SR5AU” is sent by the controller, the “S” is the first byte received

and stored by the 5342A HP-IB interface. The interface generates an interrupt to the microprocessor and the “S” is read by the MPU. Since S is not a complete code, the microprocessor

3-23

Model 5342A Operation

waits until the complete code is sent and received. After “R” and then “5” are sent, the micro-

processor sets the resolution accordingly and then goes to the beginning of the measurement.

When the controller sends “A”, an interrupt is generated and “A” is read by the microprocessor.

It then waits for the complete code to be sent which in this case is “AU”. The microprocessor

again goes to the start of the measurement cycle.

3-77.

Table 1-1.

paragraph 3-82.

3-24

3-78.

3-79. 9825A PROGRAM EXAMPLES

3-80. The following 9825A program examples are illustrative of 5342A programming:

EXAMPLE 1

This program assumes the range switch was set to 0.5-18 GHz before the program was executed. The program puts the 5342A in AUTO, 10 kHz resolution, HOLD, and “wait until addressed” output mode. Program takes a measurement (trg 702) and reads it into the A register. After waiting 500 ms, the program loops back to the next trigger, then read statement.

Model 5342A

Operation

EXAMPLE 2

This program also assumes the range switch was previously set to the 0.5-18 GHz position. The program puts the counter

in AUTO mode, 10 Hz resolution, fast sample, and “only if addressed” output mode. The program takes a measurement,

unaddressed the 5342A as a talker (cmd 7, “-”) so that the counter will continue making measurements at a fast rate, and waits 500 ms until reading the next measurement.

EXAMPLE 3

This program sets a manual center frequency of 10 GHz

(input frequency range, FM mode, front panel sample rate control, and “output only if addressed”. Each reading is printed on the 9825A printer.

= 10.03 GHz), 1 Hz resolution, 0.5-18 GHz

3-25

Model 5342A Operation

EXAMPLE 4

This program selects AUTO mode, 1 Hz resolution, fast sample, “output only if addressed”, and amplitude “on”. The frequency is read into the A register and-the amplitude is read into the B register. Notice that although the frequency is displayed only to 1 MHz resolution on the counter, the full 1 Hz resolution is output to the calculator.

EXAMPLE 5

This program measures the same signal as in (4) but enters a -10 dB offset in the amplitude measurement.

3-26

Model 5342A

EXAMPLE 6

This is the same program as (5) but with a +10 GHz offset.

Operation

3-27

Model 5342A operation

3-81.

3-82.

HP-IB

The HP-IB output is affected by input signal level as follows:

For input signal levels greater than or equal to specified sensitivity, the 5342A outputs measurement data as described in paragraph 3-77.

For input signal levels less than the actual sensitivity by 0.1 dB or more (or for no input), the counter outputs zeros when addressed to talk.

For input signal levels just on the edge of the ccunter’s actual sensitivity (approximately a ,

0.1 dB band) the detectors which indicate sufficient signal level for counting may become intermittent resulting in very long acquisition times. The counter’s display holds the previous reading during the prolonged acquisition but the counter will not output any

data when addressed to talk. This will hang up the program at the read statement.

With the 9825A, use the “time” statement and “on err” statement to branch around the read statement if it takes longer than a specified number of milliseconds to complete an 1/0 operation. The following example program can be used when there is more than one . read statement in the program. If there is only one read statement, then statement 2

could be deleted and the end of statement 7 could simply cause the program to go to the

statement after the read (in this case, “gto 6“):

PROGRAMMING NOTES

Since this statement is in line 2, the program jumps to the statement after

the read statement.

3-28

Error 4 is time out error. Reset time

and error jump.

When the 5342A took more time than 1 second to make the measurement,

zeroes are output.

NOTE

For any controller, check SRQ to see if a measurement has been completed. number of iterations on the SRC) check to permit the counter to complete the measurement and pull SRQ. A flow diagram of such an algorithm is:

Allow an adequate

Model 5342A

Operation

3-29

Model 5342A Operation

3-83. REMOTE PROGRAMMING OF DIAGNOSTIC MODE 6 (OPTION 002,011 ONLY)

3-84. In some system applications, it may be desirable to program the 5342A to diagnostic mode

6 so that the counter will constantly present a low SWR and not switch to frequency measure-

ments (higher

SWR). The following example shows how this may be done:

EXAMPLE

— Program counter for AMPL mode

This sets the counter to diagnostic mode 6

Counter must be triggered to enter

‘diagnostic mode 6. For 5 seconds,

counter does not switch to frequency.

This resets the counter to amplitude and

frequency measurements

3-30

Model 5342A

Performance Tests

SECTION IV

PERFORMANCE TESTS

4-1. INTRODUCTION

4-2. The procedures in this section test the electrical performance of the 5342A using the specifications in Table 1-1 as performance standards. Those specifications which are inherent to the design (obvious during operation) are not covered in these tests. For example, worst case acquisition time is determined by the period of the sweep and the length of the pseudo-random sequence. If the counter acquires the signal, it must have acquired it in a time less than specified.

4-3. OPERATIONAL VERIFICATION

4-4. The abbreviated checks given in paragraphs 4-12 through 4-18 can be performed to give a high degree of confidence that the 5342A is operating properly without performing the complete performance test. The operational verification should be useful for incoming QA, routine maintenance, and after instrument repair. The Option 011 HP-IB Verification Program is described in paragraphs 4-19 through 4-26. The Option 004 DAC test is contained in paragraph 4-27.

4-5. COMPLETE PERFORMANCE TEST

4-6. The complete performance test is given in paragraphs 4-28 through 4-40. All tests can be

performed without access to the inside of the instrument.

4-7. EQUIPMENT REQUIRED

4-8. Equipment required for the complete test and operation verification is listed in Table 1-4. Any equipment which satisfies the critical specifications given in the table may be substituted for the recommended model numbers.

4-9. TEST RECORD

4-10. Results of the operational verification may be tabulated on the Operational Verification Record, Table 4-1. Results of the performance test may be tabulated on the Performance Test Record,

Table 4-5.

4-1

Model 5342A Performance Tests

4-11.

4-12.

4-13.

Instruments Only)

OPERATIONAL VERIFICATION

Self-Check

a.,

Select 1 Hz resolution, AUTO mode, and 500 MHz—18 GHz range. Set self-check mode and verify counter displays 75.000000 MHz ±1 count.

Set 5342A to 10 Hz—500 MHz range. Connect rear panel FREQ STD OUTPUT to front

panel BNC input. Select 50 impedance. Verify that the 5342A counts 10.000000 MHz ±1 count.

10 Hz-500 MHz Input Sensitivity Test, /1 (Standard and Option 003

Setup:

PROCEDURES

Set the 5342A to 10 Hz—500 MHz range and 500. Set 8620C to 10 MHz and a level of -19.3dBm (25 mV rms) as measured on

the 436A Power Meter. Measure actual sensitivity and verify that the 5342A counts at 10 MHz, 100 MHz, 520 MHz, and record on operational verification record (Table 4-1).

Disconnect 11667A and connect 8481A directly to 86222A output. Set

8620C to 25 MHz at a level of -19.3 dBm (25 mV rms).

Disconnect 8481A from 86222A output. Switch 5342A to the 1 position. Connect 86222A output to 5342A 10 Hz—500 MHz input (86222A supplies 25 mV rms into

Verify that the 5342A counts 25 MHz at 50 mV rms and record on operational verification record (Table 4-1).

50fl

or 50 mV rms into 1

Mfl).

Mfl

4-2

Model 5342A

Performance Tests

4-14. 10 Hz-500

Specification:

Setup:

MHz Input (500) Minimum Level and Amplitude Accuracy Test (Option 002)

±1.5 dB accuracy for frequencies from 10 MHz to 520 MHz. Minimum Level: -17 dBm.

●

Connect the 11667A directly (using type N to BNC adapter) to the 5342A BNC low frequency input. Connect 8481A directly to the other 11667A output.

●

Set the 5342A to 10 Hz-500 MHz range, 50Q, and amplitude mode.

●

Set the 86222A to 10 MHz and adjust output level and 8495B for a level of

-17 dBm as measured on the 436A Power Meter. (8495B set to 10 dB or greater.) Slowly vary the 8620C from 10 Hz to 520 MHz and verify that the 5342A displays correct frequency.

●

Take a measurement at 10 MHz, 100 MHz, and 520 MHz, and verify that 5342A reading is within ±1.5 dB of 436A reading. Enter results on operational verification record (Table 4-1).

4-3

Model 5342A Performance Tests

4-15.

10 Hz-500 MHz Input (50Q) Maximum Input Test (Option 002)

Specification:

Setup:

+20 dBm

●

Set the 8495B to 10 dB,

●

Set the 3312A to 13 MHz sine wave with AMPLITUDE set to 10. Adjust amplitude vernier for a +15 dBm output level (+5 dBm on 436A).

●

Set the 5342A to AMPL mode, 50Q, 10 Hz—500 MHz range and connect

the 3312A output to the 5342A input. Increase the 3312A output until

the 5342A measures +20 dBm.

●

Disconnect output of 3312A from 5342A and connect it to 8495B. Power meter should display +10 dBm ±1.5dB (allowing for the + 10 dB of 8495 B). Enter on operational verification record (Table

●

Reconnect 3312A to 5342A and increase power output until 5342A

4-1).

“dashes” the display to indicate overload. This must occur at a level

greater than +20 dBm. Enter on operational verification record.

4-4

Model 5342A

Performance Tests

4-16. 500 MHz—18 GHz Input Sensitivity Test (Standard and Option 003 Instruments Only)

Specification:

Description:

Sensitivity = -25 dBm, 500 MHz-12.4 GHz

= -20 dBm, 12.4 GHz-18 GHz. For Option 003: Sensitivity = -22 dBm, 500 MHz-12.4 GHz

= -15 dBm, 12.4 GHz-18 GHz.

The 5342A is set to the 500 MHz-18 GHz range and a signal at the rated

sensitivity is applied to the type N connector. The frequency is slowly varied over the range of 500 MHz to 12.4 GHz and the 5342A is checked for proper counting. The output level of the test generator is increased to the second value, the frequency is slowly varied from 12.4 GHz to 18 GHz, and the 5342A checked for proper counting.

●

Set the 5342A to the 500 MHz-18 GHz range.

●

Connect the 11667A Power Splitter directly to the 5342A type N connector. Connect the 8481A power sensor directly to the other output port of the 11667A power splitter.

●

Set the 8620C with the appropriate plug-in (86222A for 500 MHz to 2 GHz, 86290A for 2 GHz-18 GHz) and the 8495B step attenuator to the rated sensitivity as measured on the 436A. Remember that the 5342A with Option 003 has different specifications.

●

Slowly increase the 8620C frequency over the range and verify that the 5342A counts properly.

●

Measure actual sensitivity at 1 GHz,12.4GHz, and 18GHz. Enter on operational verification record (Table 4-1).

4-5

Model 5342A Performance Tests

4-17. 500 MHz-18

Specification:

GHz Input Minimum Level and Amplitude Accuracy Test (Option

±1.5 dB accuracy for frequencies from 500 MHz to 18 GHz.

Minimum level:

-22 dBm 500 MHz-12.4 GHz

-15 dBm 12.4 GHz-18 GHz

Description: A signal at the minimum level is applied to the 5342A and 436A power

meter and is varied over the frequency range. The amplitude reading of the 5342A is compared to the 436A Power Meter (calibration factor included).

Setup:

002)

4-6

●

Connect the 11667A directly to the 5342A type N connector and connect the 8481A directly to the other 11667A output.

●

Set the 8620C at 500 MHz and adjust the output level and the step attenuator for -22 dBm as measured on the 436A Power Meter.

●

Set the 5342A to the 500 MHz-18 GHz range and select amplitude mode. Slowly vary the 8620A up to 12.4 GHz and verify correct 5342A display.

●

Take measurements at 1 GHz and 12.4 GHz. Verify that the 436A reading is within ±1.5 dB of the 5342A reading. (Be sure to change the 436A calibration factor with frequency.) Record difference between 436A and 5342A readings on verification record,

●

Set the 8620C to 12.4 GHz and adjust the output level to -15 dBm as measured on the 436A Power Meter. Slowly vary the 8620C up to 18GHz and verify correct 5342A display.

●

Take a measurement at 18 GHz and verify that the 5342A is within ±1.5 dB of the 436A reading (be sure to adjust 436A calibration factor). Record difference between 436A and 5342A readings on verification record

(Table

4-1).

4-18. 500 MHz-18 GHz High Level Test

Model 5342A

Performance Tests

For Standard Instrument:

Set the 8620C to 1 GHz at +5.0 dBm as measured by the 436A Power Meter. Connect the 8620C output to the 5342A and verify that the counter counts 1 GHz.

Increase the level of the 8620C output until the counter’s display fills with dashes. Measure this level on the 436A and verify that it is greater than +5 dBm. Enter on verification record (Table 4-1).

For Option 002 Instruments:

Set 5342A to 500 MHz-18 GHz range and AMPL mode. Set the 8620C to 1 GHz at a level of +10 dBm as measured on the 436A. Connect the 8620C output to the 5342A and verify that the 5342A counts

1 GHz. Enter difference between 5342A and 436A readings on verification record (Table 4-1).

4-19.

OPTION 011 HP-IB VERIFICATION PROGRAM

4-20. The 9825A program listed in Table 4-2 exercises the 5342A through various operating modes, described below, via its HP-IB Interface. If the 5342A successfully completes all phases of the verification program, then there is a high probability that the HP-IB Interface (A15 assembly) is working properly. If the 5342A does not respond as described, refer to HP-IB troubleshooting in Section VIII.

NOTE

Prior to conducting the performance test, check the A15 board revision letter (adjacent to the board part number). If the revision letter is D or later, check the LSRQ line to pin 13 to be sure the jumper is installed as shown in Figure 8-38.

4-7

Model 5342A Performance Tests

4-21. To perform the verification, set up the 5342A as shown and set its rear panel address switches to address 07.

4-22. The program listed in Table 4-2 may be keyed into the 9825A or may be loaded from a

HP-IB Verification Cassette, HP P/N 59300-10001, (Revision B or Iater] which also contains HP-IB verification programs for the 59300 series of instruments. To run the program on the cassette, insert the cassette into the 9825A, load file 0, and press RUN. Enter “5342” when the instrument mode number is requested and select code “707” when select code is requested. The 9825A will then load the 5342A verification program into memory.

4-23. Apply power to the 5342A and verify that the counter powers up in AUTO mode and

REMOTE off. Verify that when the range switch is placed in the 10 Hz-500 MHz position and impedance select to 50 the counter counts its 10 MHz time base.

4-24. The program goes through 14 check points for the standard instrument and an additional 4 check points for the amplitude option (002). The information in Table 4-3 tells what occurs during each test and what should be observed by the operator if the test has been successfully

completed. At the conclusion of each test, the program stops and displays the current check point. To advance to the next test, simply press CONTINUE. If it is desired to repeat a test, set the variable Lto 1 via the keyboard (1--L EXECUTE), To go on to the next test after looping, set L back to when the program halts L (EXECUTE). Record on operational verification record

(Table 4-1).

4-25. When the 9825A displays “AMPL OPT?” at the end of check point 14, enter “YES” if the 5342A has Option 002. Enter

“NO” if the amplitude option is not present.

4-26. Table 4-4 is a sample printout from the 9825A.

4-8

4-13

Model 5342A Performance Tests

Table 4-1.

4-12

4-14

4-16

4-17

4-19

4-26

4-27

4-18

4-9

Model 5342A Performance Tests

Table 4-2. Model 9825A Program

4-10

Table 4-2. Model 9825A Program (Continued)

Model 5342A Performance Tests

4-11

Model 5342A Performance Tests

Table 4-2. Model 9825A Program (Continued)

4-12

Table 4-3. Model 9825A Program Description

Model 5342A

performance Tests

CHECK POINT

1 2

6 Resolution - The counter should display the 75 MHz check frequency

Set Offset Frequency When the 9825A displays X?, enter a frequency offset in

Sample Rate - Hold,

TEST OBSERVE ON 5342A

Remote

Manual/Auto Front panel MANUAL should light for approximately

Frequency Offset-

On/OFF

Range - Low/High

FM mode - On/Off

1 Hz to 1 MHz

Set Manual Center

Frequency frequency in MHz, no decimal points between 500 (MHz)

Talk

Front Panel Control, and a trg 722 is executed. For each beep of the calculator,

Fast Sample, observe that the 5342A GATE lights. After the second

Sample and Hold

Front panel REMOTE should light.

5 seconds (AUTO goes off for 5 seconds). At conclusion of test, AUTO light should be on.

Front panel OFS (MHz) should light for approximately 5 seconds then go off.

The counter should display 10 MHz for approximately

5 seconds and then all O’s (high range - no input). Front panel asterisk should light for approximately

5 seconds.

with resolution from 1 Hz to 1 MHz. Each beep from calculator decreases resolution by one decade. There is approximately a 2-second wait between each change.

When the 9825A displays X?, enter a manual center

and 18000 (MHz). Press CONTINUE. Verify that the counter was set to this manual center frequency by pressing RESET, RECALL, MANUAL. For example, if 12345 is entered (12.345 GHz manual frequency), then

12.345 GHz should be displayed by the counter when the manual center frequency is recalled.

MHz, decimal points allowed, Press CONTINUE. Verify that the counter was set to this frequency offset by pressing RESET, RECALL, OFS (MHz). For example, if

12345.678987 is entered, then 12.345678987 GHz should be displayed by the counter when the fequency offset is recalled.

The 9825A should print 75 MHz, which is the output of the 5342A in check mode. The 5342A RECALL light should flash on during output, indicating that it has been addressed as a talker.

In the first part of the test, the 5342A is placed in HOLD

measurement, the 5342A is programmed for front panel control. Vary the front panel sample rate pot and observe the change in GATE delay. Press CONTINUE and the 5342A is programmed for fast sample. Verify that the front panel pot has no effect and that there is minimum time between measurements. Press CONTINUE and the 5342A is programmed for sample and HOLD. Before each beep from the 9825A, the 5342A is sent T3 which takes one measurement and holds.

4-13

Model 5342A Performance Tests

Table 4-3.

CHECK POINT

AMPL

OPTION 002:

4 AMPL Output The 5342A is placed in amplitude mode and addressed

Only If/Wait

Until Addressed

Status Byte

Go To Local

Local Lockout

Amplitude-On/Off

Amplitude Offset-

On/Off

Set Amplitude

Model 9825A Program Description (Continued)

TEST

Offset

At the start of this test, the 5342A is placed in the ONLY IF addressed mode. The GATE light should continually

light, indicating that measurements are continually being made until the 5342A is addressed to talk. The counter is addressed to talk and the value is printed, The counter is then placed in WAIT UNTIL addressed, The GATE light should go out after the first measurement and remain out, indicating that the first measurement is being saved until the counter is addressed to talk. It is then addressed to talk and the value is printed by the printer,

The 5342A is put in HOLD and serial poll mode. Its status byte is displayed by the 9825A. After approximately 5 seconds, the 5342A is triggered and a measurement is taken. The status byte displayed by the 9825A should change from O to 80, indicating that the 5342A has taken a measurement.

LCL 722 is issued. The front panel REMOTE light should go off.

The 5342A is returned to remote control and the local lockout command is issued, When the 9825A displays “press CONTINUE”, press RESET on the 5342A and verify that the counter remains in REMOTE. Press CONTINUE on the 9825A and Icl 7 is issued. Verify that the 5342A goes to local.

Front panel AMPL should light for approximately 5 seconds and then of off.

Front panel OFS (dB) should light for approximately 5 seconds and then go off.

When the 9825A displays X?, enter an amplitude offset in dB in the range of -99.9 to +99.9. Press CONTINUE. Verify that the 5342A was set to this offset by pressing RESET, RECALL, OFS (dB).

to talk, Verify proper output format as given in sample printout in Tab/e 4-4.

OBSERVE ON 5342A

4-14

Table 4-4. Sample Printout

Model 5342A

Performance

Tests

4-15

Model 5342A Performance Tests

4-27. DIGITAL-TO-ANALOG CONVERTER (DAC) OUTPUT TEST (OPTION 004)

Specification:

Description:

Setup:

Accuracy = ±5 mV, ±0.3 mV/°C (from 25°C). The 5342A is set to the 500 MHz-18 GHz range and a 999 MHz signal is

applied to the type N connector. A DVM is connected to the DAC OUT connector on the rear panel. The front panel keyboard is used to select digits 999 and the DVM observed for an indication of 9.99 volts dc. Then the 000 digits are selected and the DVM observed for 0 volts dc.

●

Set the 5342A to the 500 MHz-18 GHz range, AUTO mode.

●

Connect DVM to DAC OUT, set DVM to 20V range.

●

Set the generator to 999 MHz as indicated on 5342A display.

●

On 5342A keyboard, press:

4-16

●

Observe DMV for indication of 9.99 ±0.01. Enter on operational verifi-

cation record (Table 4-7).

●

On 5342A keyboard, press:

●

Observe DVM for 0 ±0.01. Enter on operational verification record.

●

On 5342A keyboard, press:

●

Observe DVM for

9.00 ±0.01. Enter on performance test record.

Model 5342A

Performance Tests

4-28. PERFORMANCE

TEST PROCEDURES

4-29. 10 Hz-500 MHz Input Sensitivity Test, 500 (Standard and Option 003 Instruments Only)

Specification:

Description:

Setup:

a. 10 Hz—10 MHz

50 position, sensitivity = 25 mV rms for frequencies from 10 Hz-520 MHz.

The 5342A is set to the 10 Hz-500 MHz range and a signal at the rated

sensitivity is applied to the BNC input. The frequency is slowly swept up

to 10 MHz at constant level and the 5342A reading is checked for the

proper count. For the range of 10 MHz to 520 MHz, a different generator is used. For Option 002, sensitivity is tested in paragraph 4-37.

●

Set 651B to 10 Hz and 25 mV rms.

●

Increase the frequency of the 651B and verify that the 5342A counts proper frequency from 10 Hz to 10 MHz.

●

Measure actual sensitivity by decreasing the 651B level until the 5342A gives an unstable count at these frequencies: 10 Hz, 1 kHz, 500 kHz,

5 MHz, 10 MHz. Enter on performance test record

b. 10 MHz-520 MHz

●

5342A settings remain unchanged.

●

Set 436A power meter for AUTO range and dBm mode.

●

Set the 86222A for INT leveling and adjust the output power level for a 436A reading of -19.3 dBm (25 mV rms into 500).

●

Increase the frequency of the 8620C over the range of 10 MHz to 520 MHz and verify that the 5342A counts proper frequency. Use 436A to verify input power.

●

Measure actual sensitivity at 50 MHz, 250 MHz, 520 MHz, and enter on performance test record (Table 4-5).

(Table 4-1).

4-17

Model 5342A

Performance Tests

4-30. 10 Hz-500 MHz Input Sensitivity Test, 1M

Specifications:

Setup:

a. 10 Hz-10 MHz

1 M position, sensitivity = 50 mV rms for frequencies from 10 Hz25 MHz.

●

Set the 651B to 10 Hz and adjust level for 141 mV p-p signal (50 mV rms).

●

Increase the frequency of the 651B and verify that the 5342A counts proper frequency from 10 Hz to 10 MHz.

●

Measure actual sensitivity at 10Hz, 1kHz, 500kHz,5MHz, and 10MHz by monitoring p-p voltage on oscilloscope. Enter on performance test record (Table 4-5).

b. 10 MHz-25 MHz

●

5342A settings remain unchanged.

●

Adjust 86222A output for a 141 mV p-p (50 mV rms) reading on the 1740A.

●

Increase the frequency of the 8620C from 10 MHz-25 MHz and verify that the counter counts properly. Monitor the output level on the oscilloscope for 141 mV p-p (50 mV rms) over the range.

●

Measure actual sensitivity at 15 MHz, 25 MHz, and enter on performance

test record (Table 4-5).

4-18

Model 5342A

Performance Tests

4-31. 500 MHz-18 GHz Input Sensitivity Test (Standard and Option 003 Instruments Only)

Specification:

Description:

Setup:

Sensitivity = -25 dBm, 500 MHz-12.4 GHz

= -20 dBm, 12.4 GHz-18 GHz

For Option 003:

Sensitivity =

-22 dBm, 500 MHz-12.4 GHz

= -15 dBm, 12.4 GHz-18 GHz

The 5342A is set to the 500 MHz-18 GHz range and a signal at the rated

sensitivity is applied to the type N connector. The frequency is slowly

varied over the range of 500 MHz to 12.4 GHz and the 5342A is checked

for proper counting. The output level of the test genertor is increased to

the second value, the frequency is slowly varied from 12.4 GHz to 18

GHz, and the 5342A sensitivity is tested in

checked for proper counting. For Option 002,

paragraph 4-37.

●

Set the 5342A to the 500 MHz-18 GHz range, AUTO mode.

●

Connect the 11667A power splitter directly to the 5342A type N connector. Connect the 8481A power sensor directly to the other output port of

the 11667A power splitter.

●

Set the 8620C with the appropriate plug-in (86222A for 500 MHz to 2GHz, 86290A for 2 GHz-18 GHz) and the 8495B step attenuator to the rated sensitivity as measured on the 436A. Remember that the 5342A with Option 003 has different specifications.

●

Slowly increase the 8620C frequency over the range and verify that the 5342A counts properly.

●

Measure actual sensitivity at 500 MHz, 1 GHz, 5 GHz, 10 GHz, 12.4 GHz,

15 GHz, 17 GHz, and 18 GHz.

Enter on performance test record

(Table 4-5).

4-19

Model 5342A

Performance Tests

4-32. 500 MHz-18 GHz Input SWR Test

Specification:

<2:1 500MHz-10GHz

<3:1 10 GHz-18 GHz

Option 002:

Option 003: Description:

Setup:

<2:1 500 MHz-18 GHz (during amplitude measurements) 5:1 500 MHz-18GHz (during frequency measurements)

<5:1 500 MHz-18 GHz

Using an 8755B Swept Amplitude Analyzer, the return loss of the 5342A high frequency input is measured over the range of 2GHZ to 18GHz. An

SWR of 2:1 (9.5dB return loss) is worst case for frequencies below 10GHz and an SWR of 3:1 (6 dB return loss) is worst case for frequencies from 10 GHz-18 GHz. The dual directional coupler outputs the incident power and reflected power to the 11664A detectors. The 8755B performs the

ratio and displays return loss directly.

4-20

●

Set the 8620C to sweep from 2 GHz to 18 GHz with the FAST vernier set full clockwise.

●

Set the 86290A to the 2-18GHz band and a power level of approximately +5 dBm, internally leveled.

●

Set the 8755B for SMOOTHING (ON), OFFSET CAL (ON), DISPLAY (A/R), THUMBWHEELS (ØØ), scale 5 dB/div. Set the 182T to EXT CAL.

●

To calibrate the 8755B, short (or open) the 11692D coupler output which feeds the 5342A. Adjust the OFFSET CAL of the A channel to center the scope display at the center horizontal line of the 182T CRT.

●

Connect 5342A to 11692D coupler and set A channel offset dB on the

8755B to -09. The trace should be below the center line for frequencies

below 10 GHz as shown below. Verify that the return loss is >9.5dB from

2-10 GHz and >6.0 dB from 10-18 GHz (standard instrument). For Option 003, verify that the return loss is >3.5 dB over the range of 2-18 GHz. Enter the minimum return loss for each range of frequency on the

performance test record (Table 4-5).

Model 5342A

Performance Tests

FOR AMPLITUDE OPTION, put the 5342A in diagnostic

mode 5 (press

SET, SET 5) to prevent switching between the sampler input and the peak detector input. Measure SWR as described above and verify that for amplitude measurements, return loss is >9.5 dB for frequencies from 2 GHz-18 GHz. Next put the 5342A in AUTO and frequency only so that amplitude measurements are not made. Verify that the return loss is >3.5

dB for frequencies from 2-18 GHz (SWR <5:1).

4-21

Model 5342A Performance Tests

4-33. 500 MHz-18 GHz Maximum Input Test

Specification:

Description:

Setup:

+5 dBm (Standard Instrument) +20 dBm (Options 002, 003)

The 5342A display will fill with dashes in an overload condition. The detecting circuits controlling the “dashing” of the display exhibit approximately 2 dB hysteresis so that once the threshold is exceeded, the level must be dropped by approximately 2 dB before the counter will count again. Consequently, it is critical that in this test the level be approached from below the +5 dBm limit. Since the sampler response is greatest near 1 GHz, this test is made at 1 GHz.

The standard instrument is tested first and then the Option 002 or 003,

(which use a thin film attenuator in front of the sampler to increase the

maximum allowable input to +20 dBm) is tested (if installed). (Standard Instrument)

4-22

Set the 8620C to 1 GHz at +5.0 dBm as measured by the 436A Power

Meter. Connect the 8620C output to the 5342A and verify that the

counter counts 1 GHz,

●

Increase the level of the 8620C output until the counter’s display fills with dashes, Measure this level on the 436A and verify that it is greater than +5,

dBm, Enter the level (at which the display is dashed) on the performance

test record (Table 4-5).

●

For Options 002 003 only:

Model 5342A

Performance Tests

●

Set the 84956 to 10 dB.

●

Set the 8620C to 1 GHz and connect the 84956 output to the 8481A power sensor. Adjust the 489A gain control and 86222A gain control for a 489A

output level of +15 dBm (+5 dBm displayed on 436A).

●

Connect the 489A output to the 5342A and verify that the counter counts 1 CHz. Increase the signal level until 5342A (Option 002) displays +20 dBm ±1.5 dB. Enter on performance test record, Reconnect signal to 5342A and increase level until display fills with dashes. This must occur at a level >+20 dBm. Enter the level (at which the display is dashed) on the performance test record (Table 4-5), Be sure to add 10 dB to 436A readings to account for the 8495B attenuator.,

4-23

Model 5342A Performance

4-34. FM Tolerance Test

Specification: 20 MHz peak-to-peak (CW mode)

Description: The FM tolerance specification indicates the worst case FM deviation

Tests

50 MHz peak-to-peak (FM mode)

which can be present on a carrier that the counter can acquire and count. If the deviations are symmetrical about the carrier, then the counter averages out the deviations and displays the carrier frequency.

A rear panel switch controls the CW mode and FM mode, In this test, a function generator is used to FM the 8620C and the output is

examined on a spectrum analyzer to measure the peak-to-peak devi-

ation. The amplitude of the modulating waveform is adjusted for a 20

MHz p-p deviation and then a 50 MHz-p-p deviation.

4-24

●

Set 86290A to 4 GHz at -10 dBm.

●

Put 5342A in 500 MHz-18 GHz range and AUTO mode. Observe IF OUT on the spectrum analyzer. Set 5342A to manual mode to setup peak-topeak deviation,

●

Apply modulating signal to EXT FM input on the rear panel of 86290A. Use a 100 kHz sine wave of sufficient amplitude to give 20 MHz p-p FM

deviation as shown. (Modulating rate for this photo was 100 kHz.) Record

on performance test record (Table 4-5).

●

Switch the counter from manual to AUTO to verify that the counter will

acquire and count the signal.

Model 5342A

Performance Tests

●

If deviations are symmetrical about center frequency, the 5342A will

average out the deviations and display the 4.0 GHz center frequency.

●

Return the MAN mode, Increase amplitude of modulating waveform to

product a 50 MHz p-p deviation as shown below (f

m = 100 kHz). Record

on performance test record (Table 4-5).

●

Switch rear panel switch to FM. Switch counter from MAN to AUTO. Verify that the counter will acquire and count the signal.

●

If deviations are symmetrical about the center frequency, the 5342A will average out the deviations and display the 4.0 GHz center frequency. For this case, the deviation is not symmetrical about the center frequency, To verify that the counter has passed the test, check that the displayed frequency is within 300 MHz of 4 GHz (if then N number computed is off by 1

due to excessive FM, then the displayed frequency will be off by 300 to

350 MHz).

4-25

Model 5342A Performance Tests

4-35. Automatic Amplitude Discrimination Test

Specification:

Description:

The 5342A measures the largest of all signals present, providing that the signal is 6 dB above any signal within 500 MHz; 20 dB above any signal, 500 MHz-18 GHz.

In this test, two microwave generators are used to provide two signals into the 5342A. The relative level of the two signals is adjusted to the specification and the 5342A must count the higher amplitude signal.

4-26

Set generator 1 to 18 GHz and at a level to deliver -5 dBm to the 5342A. To set this level, disconnect generator 2 from the 11667A and terminate that

input port of the 11667A with a 909A (Option 012) nect the 8481A to the 5342A end of cable A and adjust the 86290A output fer a -5 dBm reading.

Set generator 2 to 500 MHz and at a level to deliver -25 dBm to the 5342A. To set this level, disconnect generator 1 from the 11667A input (reconnect generator 2 to 11667A) and terminate the generator 1 input of the 11667A with a 909A 500 termination. Connect the 8481A to the 5342A end of cable A and adjust 86222A for a -25 dBm reading.

Connect both Generators to the 11667A inputs. Connect cable A to the 5342A. Verify that the 5342A counts 18 GHz. Increase the level of generator 2 until the 5342A counts incorrectly - measure that level (by using the same procedure described above) and record on test record.

Set generator 1 to 2.5 GHz and at a level to deliver -5 dBm to the 5342A

using the technique described above. Set generator 2 to 2.0 GHz and at a

level to delivery -11 dBm to the 5342A using the technique described above. Connect both generators to the 11667A and cable A to the 5342A. Verify that the 5342A counts 2.5 GHz. Increase generator 2 level until counter counts incorrectly record (Table 4-5).

measure that level and record on test

Model 5342A

Performance Tests

4-36. 500 MHz-18 GHz Input Minimum Level and Amplitude Accuracy Test (Option 002)

Specification:

Description: A signal at the minimum level is applied to the 5342A and 436A Power

±1.5 dB accuracy for frequencies from 500 MHz to 18 GHz Minimum level:

-22 dBm 500 MHz-12.4 GHz

-15 dBm 12.4 GHz-18 GHz

Meter and is varied over the frequency range. The amplitude reading of

the 5342A is compared to the 436A Power Meter (calibration factor

included).

●

Connect the 11667A directly to the 5342A type N connector and connect the 8481A directly to the other 11667A output.

●

Set the 8620C at 500 MHz and adjust the output level and the step attenuator for -22 dBm as measured on the 436A Power Meter (8495B set for at least 10 dB).

●

Set the 5342A to the 500 MHz-18GHz range and select amplitude mode. Slowly vary the 8620C up to 12.4 GHz and verify that the 5342A counts correctly.

●

Take measurements at 500 MHz, 1 GHz, 5 GHz, 10 GHz, 12.4 GHz. Verify that the 436A reading is within ±1.5 dB of the 5342A reading. (Be sure to change the 436A calibration factor with frequency. ) At each frequency, increase level by taking out 10 dB in the 8495B attenuator and verify that the readings agree within ±1.5 dB. Record the actual 5342A amplitude readings on the performance test record (Table 4-5).

●

Set the 8620C to 12.4 GHz and adjust the output level to -15 dBm as measured on the 436A Power Meter. Slowly vary the frequency to 18 GHz and verify that the 5342A counts correctly.

●

Take measurements at 12.4 GHz, 15 GHz, 17 GHz, 18GHz, and verify that the 5342A is within ±1.5 dB of the 436A reading (be sure to adjust 436A calibration factor). At each frequency, increase level by reducing 8495B by 10 dB and verify that readings again agree within ±1.5 dB. Record the actual amplitude readings on the performance test record (Table

4-5).

4-27

Model 5342A

Performance Tests

4-37. 10 Hz-500 MHz Input Minimum Level and Amplitude Accuracy Test (Option 002)

Specification:

Setup:

±1.5 dB accuracy for frequencies from 10 MHz to 520 MHz Minimum Level: -17 dBm.

●

Connect the 11667 directly (using type N to BNC adapter) to the 5342A BNC low frequency input. Connect 8481A directly to the other 11667A output.

●

Set the 5342A to 10 Hz-500 MHz range,

●

Set the 86222A to 10 MHz and adjust output level and 8495B for a level of

-17 dBm as measured on the 436A Power Meter. (84956 set to 10 dB or greater.)

●

Take a measurement at 10 MHz, 5 MHz, 100 MHz, 300 MHz, 520 MHz,

and verify that 5342A reading is within ±1.5 dB of 436A reading. At each

frequency, increase level by taking out 10 dB in the 8495B and verify that

readings agree to within ±1.5 dB, Record the actual 5342A amplitude measurements on the performance test record (Table 4-5).

4-28

Model 5342A

Performance Tests

4-38. 10 Hz-500 MHz Input

Specification:

(50Q)

+20 dBm

Setup:

Maximum Input Test (Option 002)

●

Set the 8495B to 10 dB.

●

Set the 3312A to 13 MHz sine wave with AMPLITUDE set to 10. Adjust amplitude vernier for a +15 dBm output level (+5 dBm on 436A).

●

Set the 5342A to AMPL mode,

50fl,

10 Hz-500 MHz range and connect

the 3312A output to the 5342A input. Increase the 3312A output until the

5342A measures +20 dBm.

●

Disconnect output of 3312A from 5342A and connect it to 8495B. Power meter should display +10 dBm ±1.5 dB (allowing for the +10 dB of 8495 B). Record on performance test record (Table 4-5).

●

Reconnect 3312A to 5342A and increase power output until 5342A “dashes” the display to indicate overload. This must occur at a level greater than +20 dBm. Record this level on performance test record (Table 4-5).

4-29

Model 5342A Performance Tests

4-39. 10 Hz-500 MHz Input

Specification:

Description:

<1.8:1 Using a lower frequency range directional coupler (such as the 778 D),

the test setup described in paragraph 4-13 is used to sweep the low frequency input over the range of 100 MHz to 500MHz and the return loss is measured. Return loss must be >10.75 dB over the range.

Setup:

(50f2)

SWR Test (Option 002)

4-30

●

Same as described in paragraph 4-32 except use the 86222A plug-in and

setup to sweep from 100 MHz to 500 MHz. Replace the 11692D Dual

Directional Coupler with the 778D Dual Directional Coupler.

●

Calibrate the system with a short (or open) at the 778D output which normally feeds the 5342A low frequency input,

●

Set the 5342A to

50Q

and diagnostic mode 5 (described in Table 8-8) to prevent switching between frequency and amplitude measurements. Verify that the return loss is >10,75 dB, Record on performance test record (Table 4-5).

4-40. Digital-to-Analog Converter (DAC) Output Test (Option 004)

Model 5342A

Performance Tests

Specification:

Description:

Setup:

Accuracy = ±5 mV, ±0.3

mV/°C (from 25°C)

The 5342A is set to the 500 MHz-18 GHz range and a 999 MHz signal is applied to the type N connector. A DVM is connected to the DAC OUT connector on the rear panel.

999 and the DVM observed for an indication of 9.99 volts dc. Then

digits

The front panel keyboard is used to select

the 000 digits are selected the DVM observed for 0 volts dc.

●

Set the 5342A to the 500 MHz-18 GHz range, AUTO mode.

●

Connect DVM to DAC OUT, set DVM to 20V range.

●

Set the generator to 999 MHz as indicated on 5342A display.

●

Observe DVM for indication of 9.99 ±0.01. Enter on performance test

record (Table 4-5).

●

5342A keyboard, press:

Observe DVM for Ø ± 0.01. Enter on performance test record (Table 4-5).

Observe DVM for 9.00 ±0.01. Enter on performance test record

4-5).,

(Table

4-31

Model 5342A Performance Tests

4-29

4-30

Table 4-5. Performance Test Record

4-31

4-32

4-33

4-32

4-34

4-35

4-36

4-37

Model 5342A Performance Tests

Table 4-5. Performance Test Record (Continued)

4-38

4-39

4-40

4-33

Model 5342A

Adjustments

SECTION V

ADJUSTMENTS

5-1. INTRODUCTION

5-2. This section describes the adjustments required to maintain the 5342A’s operating characteristics within specifications. Adjustments should be made when required, such as after a performance test failure or when components are replaced that may affect an adjustment.

5-3. Table 5-1 is a list of all adjustable components in the 5342A and indicates the order in which adjustments should be performed.

5-4. EQUIPMENT REQUIRED

5-5. The test equipment required for the adjustment procedures is listed in Table 1-4, Recommended Test Equipment. Substitute instruments may be used if they meet the critical specifications.

5-6. FACTORY SELECTED COMPONENTS

5-7. Factory selected components are identified by an asterisk (*) in parts lists and schematic diagrams. Refer to paragraph 8-36 for replacement information.

5-8. ADJUSTMENT LOCATIONS

5-9. Adjustment locations are identified in the component locators

in the Section VIII sche-

matic diagrams and in the top view of the instrument, Figure 8-21.

5-10. SAFETY CONSIDERATIONS

5-11. This section contains warnings that must be followed for your protection and to avoid damage to the equipment.

WARNING

MAINTENANCE DESCRIBED HEREIN IS PERFORMED WITH POWER SUPPLIED TO THE INSTRUMENT, AND PROTECTIVE COVERS REMOVED. SUCH MAINTENANCE SHOULD BE PERFORMED ONLY BY SERVICE-TRAINED PERSONNEL WHO ARE AWARE OF THE HAZARDS INVOLVED (FOR EXAMPLE, FIRE AND ELECTRICAL SHOCK). WHERE MAINTENANCE CAN BE PERFORMED WITHOUT POWER APPLIED, THE POWER SHOULD BE REMOVED.

BEFORE ANY REPAIR IS COMPLETED, ENSURE THAT ALL SAFETY FEATURES ARE INTACT AND FUNCTIONING, AND THAT ALL NECESSARY PARTS ARE CONNECTED TO THEIR PROTECTIVE GROUNDING MEANS.

5-1

Model 5342A Adjustments

Table 5-1. Adjustment

NAME

1. Power Supply Adjustments

2. Main Synthesizer Adjustment

3. Offset Synthesizer Adjustments

REFERENCE

DESIGNATOR

A21R27

A21R17

A19R5

A8R22

A4RI

A6R1 , A6R2 — Set center and extremes of

NAME

—

Set frequency of switching

regulator to 20 kHz.

Sets reference voltage against which +5V (D) is compared.

Sets current level at which shutdown occurs.

Sets free-run frequency of Can be done anytime

A8 Main VCO.

Sets free-run frequency of

A4 OFFSET VCO.

triangular search waveform

on A6.

POWER

ORDER

Should be done first in following order:

(1)

(2)

(3)

Should be done after Main Synthesizer adjustment in follow ing order:

(1)

(2)

4. IF Adjustments

5. Direct Count Adjustment

A25R28 “BAL” Maximizes gain through

A25U2.

A25C11

A11R1

A12R2 “B1” Maximize gain through

A12R12 “B2”

A12R7 “OFS” Sets level detector so coun-

A25R31 “OFST”

(Standard)

A11R14, “DET” Adjust detector to take out

A25R31

(Option 002)

A3R8

—

“AMP”

“OFST”

—

Sets attenuation at 175 MHz Maximize gain through

A11U2.

A12U2. Maximize gain through

A12U4.

ter counts 1 GHz, -130 dBm. Adjust detector to dash

5342A display at overload.

attenuation when input level drops. For Option 002 only.

Adjust for maximum Can be done anytime sensitivity.

Can be done anytime

in following order:

(1)

(2) (3)

(4)

(5)

(6)

(7)

(8)

5-2

Table 5-1. Adjustment (Continued)

Model 5342A

Adjustments

NAME

6. Amplitude Adjustments (Option 002)

7. Digital-to- A2R25 GAIN Analog (DAC) Adjustments (Option 004)

REFERENCE

DESIGNATOR

A16R21

A16R29

A16R26

A27R9

A27R10 “High Level Cal’’Adjusts the output of the

A2R27 OFFSET

NAME

—

“CAL”

5-12. ADJUSTMENT PROCEDURES

5-13. Power Supply Adjustments

PURPOSE

Adjusts reference voltage to

3.200 volts for ADC on A16. Adjust loop gain. Set the volt-

age into the ADC for a specified level of 100 kHz.

Adjust dc offset. Set the voltage into the ADC for a specified level of 100 kHz.

Adjusts the output of the 100 kHz detector on A27.

100 kHz detector on A27 for

high levels.

Adjust maximum (9.99V) DAC Can be done output. Adjusts minimum (0V) DAC output.

ORDER

Can be done anytime in following order:

(1)

(2)

(3)

(4)

(5)

anytime

5-14. Adjust resistor A21R27 (20 kHz frequency) as follows:

Place A21 on extender board. Monitor A21TP2 with an oscilloscope.

Adjust A21R27 (bottom, right side pot) for a 50 µS ±1 µs period as shown:

Replace A21 in instrument,

5-3

Model 5342A Adjustments

5-15. Adjust resistor A21R17, +5V (D) as follows:

5-16. Adjust resistor A19R5 (over-current threshold) as follows:

a. b. Apply power to 5342A via the isolation transformer.

With a 3465A Multimeter in the DAC VOLTS FUNCTION and 20V range, measure the dc

voltage of the -5.2V supply at XA21(5,5). Adjust A21 R17 for a -5.20 (-0.1, +0.05)V dc.

WARNING

PRIOR TO MAKING ANY VOLTAGE TESTS ON THE A19 PRIMARY POWER ASSEMBLY, THE VOLTMETER TO BE USED OR THE 5342A MUST BE ISOLATED

FROM THE POWER MAINS BY USE OF AN lSOLATION TRANSFORMER. A TRANSFORMER SUCH AS AN ALLIED ELECTRONICS, 705-0084 (120V AC) MAY

BE USED FOR THIS PURPOSE. CONNECT THE TRANSFORMER BETWEEN THE AC POWER SOURCE

AND THE AC POWER INPUT TO THE 5342A.

Put A19 on extender board.

Connect scope probe to A19TPJ and scope probe ground to A19TPG.

d. Adjust A19R5 for -1 volt amplitude on trailing edge of pulse as shown:

Momentarily short +5V TP on A17 to ground. Observe red LED on A21 turn on and green

LED on A20 turn off for approximately 2 seconds.

f. Remove isolation transformer and replace A19.

5-17. Main Synthesizer Adjustment

5-4

5-18. Adjust resistor A8R22 (Main VCO free-run frequency) as follows:

Put 5342A in 10 Hz—500 MHz range,

the other, connect XA5(10), the Main OSC signal, to the direct count input of the 5342A and measure the main VCO frequency,

b. With a clip lead, ground A9TP1.

Adjust A8R22 for a 325 (±2) MHz reading.

c. d. Remove ground on A9TP1.

Model 5342A

Adjustments

5-19.

5-20.

Offset Synthesizer Adjustments

Offset Synthesizer adjustments are made on assemblies A4 and A6 as follows:

Adjust A4RI (Offset VCO free-run frequency) as follows:

Put 5342A in 10 Hz-500 MHz range,

50Q.

Using cable with BNC on one end, clip leads on the other, connect XA4(10), the Offset OSC signal, to the direct count input of the 5342A and measure the Offset VCO frequency.

With a clip lead, ground A6TP1.

2. Adjust A4RI for a 325 (±2) MHz reading.

3. Remove ground on A6TP1.

Adjust A6R1, A6R2 (search sweep) as follows:

Remove the A7 Assembly from the 5342A.

Connect scope probe to A6TP1.

Adjust A6R1 and A6R2 to obtain an 8V peak-to-peak (±0.8V) triangular wave-

3. form, centered around 0V, as shown. When adjusted properly, the period will be

7.5 (±2) ms,

5-21.

5-22.

IF Adjustment

Adjust resistor A25R28 (Preamp Gain) by connecting the equipment as shown below and

perform step a.

Set 8620C to 75 MHz at -15 dBm. While monitoring the rear panel IF OUT power with the 436A Power Meter, adjust A25R28 “BAL” for maximum signal level as read on the 436A.

5-5

Model 5342A Adjustments

5-23. Adjust capacitor A25C11 (175 MHz rolloff) by connecting the equipment as shown below and proceed:

Set 5342A in AUTO mode, HOLD, and diagnostic mode 7 (SET, SET 7). Counter should display 350.5 MHz indicating that the MAIN VCO is at 350.5 MHz.

b. Transpose IF OUT INT and IF OUT EXT cables on A25 (cables connected to A25J1 and J2).

This causes the IF output of A25 to be routed to the rear panel connector of the 5342A for ease in connecting the signal to the spectrum analyzer.

Set the spectrum analyzer for a center frequency of 100 MHz, 20 MHz/div., 300 kHz BW.

d. Adjust the frequency of the 86290A (level

˜-15 dBm) for an IF around 10 MHz as seen on

the spectrum analyzer. Now change the 86290A frequency such that the IF increases. As the IF approaches 175 MHz, the amplitude will roll off. The amplitude at 175 MHz must be adjusted to be 10 (±1) dB less than the amplitude at 50 MHz (amplitude is essentially flat from below 1 MHz out to 160 MHz).

To adjust 86290A so that the IF is precisely 175 MHz, increase the 86290A frequency until the IF produced by the Nth harmonic of the VCO mixing with the input is just equal in amplitude to the IF produced by the (N±1)th harmonic of the VCO mixing with the input. Since the VCO harmonics are spaced by 350 MHz, this only occurs when both IF’s are equal to 175 MHz as seen in the following:

5-6

NOTE

In the following step, needle-nose pliers can be used to adjust A25C11 in the casting in those cases where C11 is oriented the wrong way for using a tuning wand.

Sweep the 86290A over a narrow range so that the IF covers approximately 10 MHz to 200

MHz. Adjust A25C11 so that the response at 175 MHz is 10 (±1) dB down from flat part of response as shown:

Model 5342A

Adjustments

5-24,

5-25.

5-26.

Return IF OUT INT and IF OUT EXT cables to original position.

Adjust resistor A11R1 (“Amp” Gain) as follows:

Apply 75 MHz at -20 dBm to 500 MHz-18 GHz input of 5342A.

Monitor the IF LIM signal at XA11(12) with an RF voltmeter such as the 3406A. Adjust

A11R1 for maximum output signal.

Adjust resistors A12R2, A12R12 (Gain) as follows:

Connect a 75 MHz, -50 dBm signal to the 500 MHz-18 GHz input to the 5342A.

Monitor the IF COUNT signal at XA12(8) with an RF voltmeter such as the 3406A and

adjust A12R2, “B1”, and A12R12,’’B2’’, for maximum observed output as indicated by the voltmeter.

Adjust resistor A12R7 (Sensitivity) as follows:

Set 5342A to AUTO. Adjust A12R7 maximum ccw.

Apply a 1 GHz, -30 dBm signal to the 500 MHz-18 GHz input of the 5342A,

Set 5342A to MANUAL.

5-7

Model 5342A Adjustments

g. h.

Measure the dc voltage at A12TP1 and record

Disconnect the 1 GHz signal from the 5342A input. Measure the dc voltage at A12TP2 and adjust A12R7, “OFS”, for same voltage as recorded

in step b, within ±5 mV. Set 5342A to AUTO. Remove test leads and verify that counter counts 1 GHz at -30 dBm.

5-27.

5-28.

5-29.

b. c.

Adjust resistor A25R31 (overload indication) as follows (Standard 5342A only):

Apply a 1 GHz signal at +6.0 dBm to the 5342A 500 MHz-18 GHz connector. Turn A25R31 full clockwise (counter should display 1 GHz).

Slowly turn A25R31 “OFST”, counterclockwise until the display of the counter fills with

dashes.

Verify that counter counts 1 GHz, +5 dBm signal

Direct Count Adjutment

Adjust resistor A3R8 (Balance) as follows:

Set 5342A to 10 Hz-500 MHz range and 50fL Apply a 1 MHz sine wave signal at a level of 25 mV rms. Monitor A3TP1 (output of U5) on scope and adjust A3R8 for a 50% duty cycle. Decrease input level further and adjust A3R8 for 50% duty cycle. Keep decreasing level

and adjusting A3R8 to the point where the counter no longer counts.

5-8

5-30.

5-31.

OSCILLATOR ADJUSTMENTS

A24 Standard Oscillator. Adjust the standard oscillator as follows:

Connect the rear panel FREQ STD OUT of the 5342A to the input of a high resolution frequency counter (reciprocal taking) such as an HP 5345A. The 5345A should be referenced to an external frequency standard such as the HP 5061A Cesium Beam by connecting the external standard to the external oscillator input of the 5345A.

Remove the A24 oscillator and note the frequency offset marked on the label. If oper-

ation of the counter will be over the full temperature range, then the 10 MHz oscillator

must be offset by the marked amount in order to

manufacturer’s temperature specification. For example,

then the oscillator is adjusted for a frequency of 10.0000036 MHz at 25°C. If

solely at 25°C, then the offset can be ignored.

Reinstall A24 and adjust the oscillator for a 5345A display of the frequency determined

step

keep the oscillator frequency within the

if +3.6 Hz is marked on the label,

operation is

Model 5342A

Adjustments

5-32. Option 001 Oven Oscillator (10544A). Adjust the optional oscillator as follows:

NOTE

Allow 24-hour warmup for oven before this adjustment.

Connect reference frequency standard to the external sync input of the oscilloscope.

b. Connect rear panel FREQ STD OUT of the 5342A to Channel A of the scope.

Adjust oscillator frequency for minimum sideways movement of the 10 MHz displayed

signal.

d. By timing the sideways movement (in CM per second), the approximate offset can be

determined based on the oscilloscope sweep speed as shown in the following:

For example, if the trace moves 1 centimetre in 10 seconds and the sweep speed is

0.01 µs/cm, the oscillator signal is within 1 X 10

-9

of the reference frequency.

5-9

HP 5342a schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

SECTION O

SECTION I

SECTION II

SECTION IV

SECTION V