Fluke 6080AN, 6080A Service Manual

6080A/AN

SYNTHESIZED SIGNAL GENERATOR

Service Manual

P/N 868906 October 1989

PO Box C9090 Everett WA 98206

WARRANTY

The JOHN FLUKE MFG. CO., INC warrants each instrument it manufactures to be free from defects in material and workmanship under normal use for 2 years from the date of purchase. This warranty extends only to the original purchaser. This warranty shall not apply to fuses, disposable batteries, or any product or parts that have been subject to misuse, neglect, accident, or abnormal conditions of operation.

In the event of failure of a product covered by this warranty, JOHN FLUKE MFG. CO., INC will repair and calibrate an instrument returned to an authorized Service Center within 2 years of the original purchase; provided the warrantor's examination discloses to its satisfaction that the product was defective. The warrantor may, at its option, replace the product in lieu of repair. With regard to any instrument returned within 2 years of the original purchase, said repairs or replacement will be made without charge. If the failure has been caused by misuse, neglect, accident, or abnormal conditions of operation, repairs will be billed at a nominal cost. In such case, an estimate will be submitted before work is stated if requested.

If any failure occurs, the following steps should be taken:

1. Notify the JOHN FLUKE MFG. CO., INC or nearest Service Center, giving full details of the difficulty. Include the model number, type number, and serial number.

On receipt of this information, service data or shipping instructions will be forwarded to you.

2. On receipt of the shipping instructions, forward the instrument, transportation prepaid.

Repairs will be made at the Service Center and the instrument will be returned prepaid.

SHIPPING TO MANUFACTURER FOR REPAIR OR ADJUSTMENT

All shipment of JOHN FLUKE MFG. CO., INC instruments should be shipped in the original packing carton (if available). If the original carton is not available, use any suitable container that is rigid and of adequate size. If a substitute container is used, the instrument should be wrapped in paper and surrounded with at least four inches of shock-absorbing material.

Table of Contents

SECTION TITLE PAGE

1 INTRODUCTION AND SPECIFICATIONS 1-1

1-1. INTRODUCTION 1-1 1-2. UNPACKING THE SIGNAL GENERATOR 1-1 1-3. SAFETY 1-2 1-4. ACCESSORIES 1-3 1-5. SIGNAL GENERATOR SPECIFICATIONS 1-3

2 THEORY OF OPERATION 2-1

2-1. INTRODUCTION 2-1 2-2. GENERAL DESCRIPTION 2-1 2-3. Front Panel Section 2-2 2-4. Upper/Lower Module Sections 2-2 2-5. Rear Panel Section 2-2 2-6. FUNCTIONAL DESCRIPTION 2-2 2-7. Frequency 2-2 2-8. Frequency Modulation 2-4 2-9. Phase Modulation 2-4 2-10. Output/Level Control 2-5 2-11. Amplitude Modulation 2-5 2-12. Pulse Modulation 2-5 2-13. Internal Modulation Oscillator 2-6 2-14. Power Supply Description 2-6 2-15. DIGITAL CONTROLLER SOFTWARE DESCRIPTION 2-6 2-16. User Interface 2-6 2-17. Calibration/Compensation Memory 2-7 2-18. Self-Test 2-7 2-19. Status Signals 2-7

3 CLOSED-CASE CALIBRATION 3-1

3-1. INTRODUCTION 3-1 3-2. Front Panel Calibration 3-2 3-3. Remote Calibration 3-2 3-4. Calibration Data 3-3 3-5. AM CALIBRATION 3-4 3-6. Front Panel AM Calibration Procedure 3-4 3-7. Remote AM Calibration Procedure 3-6

(continued on page ii)

TABLE OF CONTENTS, continued

SECTION TITLE PAGE

3-8. FM CALIBRATION 3-7 3-9. Front Panel FM Calibration Procedure 3-8 3-10. Remote FM Calibration 3-9 3-11. RF LEVEL CALIBRATION 3-10 3-12. Front Panel Level Calibration Procedure 3-11 3-13. Remote Level Calibration Procedure 3-13 3-14. REFERENCE OSCILLATOR CALIBRATION 3-14 3-15. Front Panel Reference Oscillator Calibration Procedure 3-15 3-16. Remote Reference Oscillator Calibration Procedure 3-16

4 PERFORMANCE TESTS 4-1

4-1. INTRODUCTION 4-1 4-2. TEST EQUIPMENT 4-1 4-3. POWER-ON TEST 4-4 4-4. FREQUENCY ACCURACY TEST 4-5 4-5. SYNTHESIS TEST 4-5 4-6. HIGH-LEVEL ACCURACY TEST 4-6 4-7. MID-LEVEL ACCURACY TEST 4-8 4-8. LOW-LEVEL ACCURACY TEST 4-9 4-9. ALTERNATE-LEVEL ACCURACY TEST 4-10

4-10. FLATNESS TEST 4-13 4-11. OUTPUT LEAKAGE TEST 4-14 4-12. HARMONIC AND LINE-RELATED SPURIOUS TEST 4-15 4-13. PHASE NOISE AND NON-HARMONIC SPURIOUS TESTS 4-16 4-14. MODULATION TESTS 4-17 4-15. VOLTAGE STANDING-WAVE RATIO (VSWR) TESTS 4-23 4-16. PULSE TESTS 4-24

5 ACCESS PROCEDURES 5-1

5-1. INTRODUCTION AND SAFETY 5-1 5-2. LOCATION OF MAJOR ASSEMBLIES 5-3 5-3. ACCESS INSTRUCTIONS 5-3 5-4. Removing the Front Panel Section 5-3 5-5. Removing the Rear Panel Section 5-3 5-6. Removing the A2 Coarse Loop PCA 5-4 5-7. Removing the A3 Sub-Synthesizer VCO PCA 5-4 5-8. Removing the A4 Sub-Synthesizer PCA 5-5 5-9. Removing the A5 Coarse Loop VCO PCA 5-5 5-10. Removing the A6 Mod Oscillator PCA 5-5 5-11. Removing the A8 Output PCA 5-5 5-12. Removing the A9 Sum Loop VCO PCA 5-6 5-13. Removing the A10 Premodulator PCA 5-6

5-14. Removing the A11 Modulation Control PCA 5-6 5-15. Removing the A12 Sum Loop PCA 5-7 5-16. Removing the A13 Controller PCA 5-7 5-17. Removing the A14 FM PCA 5-8 5-18. Removing the A20 Attenuator/RPP Assembly 5-8 5-19. Removing the A22 Delay Cable Assembly 5-8

(continued on page iii)

TABLE OF CONTENTS, continued

SECTION TITLE PAGE

6 CIRCUIT DESCRIPTIONS, TROUBLESHOOTING, AND ALIGNMENT 6-1

6-1. INTRODUCTION 6-1 6-2. MODULE REPLACEMENT 6-4 6-3. A1 Display PCA 6-5 6-4. A2 Coarse Loop PCA 6-5 6-5. A3 Sub-Synthesizer PCA 6-5 6-6. A4 Sub-Synthesizer PCA 6-5 6-7. A5 Coarse Loop VCO PCA 6-5 6-8. A6 Mod Oscillator PCA 6-5 6-9. A7 Relay Driver PCA 6-5 6-10. A8Output PCA 6-5 6-11. A9 Sum Loop VCO PCA 6-5 6-12. A10 Premodulator PCA 6-6 6-13. A11 Modulation Control PCA 6-6 6-14. A12 Sum Loop PCA 6-6 6-15. A13 Controller PCA 6-6 6-16. A14 FM Board PCA 6-6 6-17. A15 Power Supply PCA 6-6 6-18. A19 Switch PCA 6-6 6-19. A20 Attenuator/RPP Assembly (A7, A21, A30) 6-6

6-20. A22 Delay Line Assembly (A25+A26+Delay Cable+Trim Cable) ....... 6-6

6-21. UPDATING COMPENSATION MEMORY WITH

MODULE EXCHANGE DATA 6-7 6-22. PARTS REPLACEMENT 6-8 6-23. SELF-TEST DESCRIPTION 6-8 6-24. Digital Tests 6-8 6-25. AM Tests 6-9 6-26. FM Tests 6-9 6-27. øM Tests 6-9 6-28. DCFM Test 6-10 6-29. Coarse Loop Tests 6-11 6-30. Sub-Synthesizer Tests 6-11 6-31. Sum Loop Tests 6-11 6-32. RF Output Tests 6-12 6-33. Pulse Modulator Tests 6-12 6-34. Filter Tests 6-12 6-35. STATUS SIGNALS AND STATUS CODES 6-13 6-36. SOFTWARE DIAGNOSTIC FUNCTIONS 6-14 6-37. Digital Control Latch Test 6-14 6-38. Instrument Diagnostic State 6-14 6-39. Set Internal DACs 6-14 6-40. Display Synthesizer Loop Frequencies 6-15

6A POWER SUPPLY 6A-1

6A-1. POWER SUPPLY BLOCK DIAGRAM 6A-1 6A-2. POWER SUPPLY CIRCUIT DESCRIPTION 6A-1 6A-3. POWER SUPPLY TROUBLESHOOTING 6A-4 6A-4. Troubleshooting Procedure 6A-4 6A-5. POWER SUPPLY ADJUSTMENT PROCEDURE 6A-5

iii

(continued on page iv)

TABLE OF CONTENTS, continued

SECTION TITLE PAGE

6B DIGITAL CONTROLLER 6B-1

6B-1. DIGITAL CONTROLLER BLOCK DIAGRAM 6B-1 6B-2. DIGITAL CONTROLLER CIRCUIT DESCRIPTION (A13) 6B-1 6B-3. Microprocessor 6B-1 6B-4. Memory 6B-1 6B-5. Memory Control 6B-3 6B-6. Front Panel Interface 6B-3 6B-7. IEEE-488 Interface 6B-3 6B-8. Attenuator Control Interface 6B-3 6B-9. Module I/O 6B-3 6B-10. Status and Control 6B-4 6B-11. DIGITAL CONTROLLER TROUBLESHOOTING 6B-4 6B-12. RF Control 6B-4 6B-13. Microprocessor Kernel 6B-5 6B-14. Clock 6B-5 6B-15. Power-On Reset 6B-5 6B-16. Unused Microprocessor Inputs 6B-5 6B-17. Bus Error 6B-5 6B-18. Interrupts 6B-5 6B-19. Microprocessor Bus 6B-6 6B-20. Address Decoder 6B-6 6B-21. I/O Diagnostic Tests 6B-7 6B-22. CALIBRATION/COMPENSATION MEMORY 6B-8 6B-23. Calibration/Compensation Memory Status 6B-8

6B-24. Repairing Calibration/Compensation Memory Checksum Errors .. 6B-9

6B-25. Calibration/Compensation Memory Origin Status 6B-9 6B-26. FRONT PANEL CIRCUIT DESCRIPTION 6B-9 6B-27. Display PCA 6B-10 6B-28. Data Communications 6B-10 6B-29. Display Filament Voltage 6B-10 6B-30. Bright-Digit Effect 6B-10 6B-31. Switchboard Interface 6B-10 6B-32. Remote Footswitch 6B-10 6B-33. Edit Knob Interface 6B-11 6B-34. Display Blanking 6B-11 6B-35. Operate/Standby Selection 6B-11 6B-36. FRONT PANEL TROUBLESHOOTING 6B-11 6B-37. Display and Controls 6B-11

6C FREQUENCY SYNTHESIS 6C-1

6C-1. FREQUENCY FAULT TREE 6C-1 6C-2. SUB-SYNTHESIZER BLOCK DIAGRAM 6C-1 6C-3. SUB-SYNTHESIZER CIRCUIT DESCRIPTION (A4) 6C-1 6C-4. SUB-SYNTHESIZER TROUBLESHOOTING 6C-9 6C-5. SUB-SYNTHESIZER ADJUSTMENTS 6C-13 6C-6. Steering DAC Full Scale Adjustment 6C-13 6C-7. Lower Clamp Adjustment, R99 6C-13 6C-8. Upper Clamp Adjustment, R98 6C-14 6C-9. SSB Mixer LO Drive Adjustment, R106 6C-14 6C-10. 10-kHz Notch Adjustment, L56 6C-15

(continued on page v)

TABLE OF CONTENTS, continued

SECTION TITLE PAGE

6C-11. SUB-SYNTHESIZER VCO (A3) CIRCUIT DESCRIPTION 6C-16 6C-12. SUB-SYNTHESIZER VCO TROUBLESHOOTING 6C-16 6C-13. COARSE LOOP CIRCUIT DESCRIPTION (A2) 6C-17 6C-14. REFERENCE SECTION BLOCK DIAGRAM 6C-17 6C-15. COARSE LOOP BLOCK DIAGRAM 6C-20 6C-16. COARSE LOOP TROUBLESHOOTING 6C-22 6C-17. COARSE LOOP PCA ADJUSTMENTS 6C-26 6C-18. Discriminator Video Amplifier Offset Adjustment, R102 6C-26 6C-19. Steering Gain Adjustment, R221 6C-28 6C-20. Acquisition Oscillator Level Adjustment, R227 6C-28 6C-21. 40-MHz Oscillator Adjustment, L601 6C-28 6C-22. 80-MHz Filter Tuning, L612 and L613 6C-29 6C-23. 80-MHz Level Adjustment, R617 6C-30 6C-24. 2-MHz Notch Adjustment, L205 6C-30 6C-25. Alternate Reference Frequency Selection 6C-31 6C-26. COARSE LOOP VCO (A5) CIRCUIT DESCRIPTION 6C-31 6C-27. COARSE LOOP VCO TROUBLESHOOTING 6C-32 6C-28. SUM LOOP BLOCK DIAGRAM 6C-32 6C-29. SUM LOOP (A12) CIRCUIT DESCRIPTION 6C-34 6C-30. RF Section 6C-34 6C-31. Audio Section 6C-35 6C-32. SUM LOOP TROUBLESHOOTING 6C-38 6C-33. SUM LOOP ASSEMBLY ADJUSTMENTS 6C-41 6C-34. Steering Level Adjustment, R112 6C-41 6C-35. Buffer Gain Match Adjustment, R121 6C-42 6C-36. FM Null Adjustment, R116 6C-42 6C-37. Loop Gain Adjustment, R167 6C-43 6C-38. Acquisition Oscillator Level Adjustment, R132 6C-44 6C-39. SUM LOOP VCO (A9) CIRCUIT DESCRIPTION 6C-44 6C-40. SUM LOOP VCO TROUBLESHOOTING 6C-45

6D RF LEVEL/AM 6D-1

6D-1. RF LEVEL FAULT TREE 6D-1 6D-2. RF LEVEL BLOCK DIAGRAM 6D-1 6D-3. RF LEVEL CIRCUIT DESCRIPTION 6D-3 6D-4. RF Path 6D-3

6D-5. Leveling Loop 6D-5 6D-6. Level Control 6D-6 6D-7. RF LEVEL TROUBLESHOOTING 6D-6 6D-8. Unleveled Condition 6D-8 6D-9. Output Assembly Test Point Signal Information 6D-9 6D-10. RF LEVEL ADJUSTMENTS 6D-10 6D-11. Mod Control PCA Level DAC Offset Adjustment, R23 6D-10 6D-12. Mod Control PCA AM DAC Offset Adjustment, R8 6D-11 6D-13. Mod Control PCA Detector Offset Adjustment, R28 6D-12 6D-14. Mod Control PCA AM Depth Adjustment, R10 6D-13 6D-15. Mod Control PCA RF Level Adjustment, R20 6D-14 6D-16. Mod Control PCA External Modulation Level

Indicator Adjustment, R71 6D-15

6D-17. Mod Control PCA Sum Steer Gain Adjustment 6D-15

(continued on page vi)

TABLE OF CONTENTS, continued

SECTION TITLE PAGE

6D-18. Output PCA Het Mixer Level Adjustment, R72 6D-16 6D-19. Output PCA Het Level Adjustment, R10 6D-17 6D-20. Premodulator PCA Bandwidth Adjustment, R51 and C7 6D-17 6D-21. Output PCA Q16 Bias Adjustment, R96 6D-18 6D-22. Output PCA Q9 Bias Adjustment, R1 6D-19 6D-23. Output PCA) Gain Flatness Adjustment, C201 6D-19 6D-24. FM Gain Adjustment, R82, on Mod Control PCA 6D-20 6D-25. FM Steer Gain, R101 on Mod Control PCA 6D-20 6D-26. FM INV Balance, R102 on Mod Control PCA 6D-20 6D-27. ATTENUATOR/REVERSE POWER PROTECTION (RPP) 6D-20 6D-28. ATTENUATOR RPP TROUBLESHOOTING 6D-21

6E FREQUENCY AND PHASE MODULATION 6E-1

6E-1. FM/øM FAULT TREE 6E-1 6E-2. FM/øM BLOCK DIAGRAM 6E-2 6E-3. CIRCUIT DESCRIPTION 6E-2 6E-4. Oscillator Section 6E-2 6E-5. Divider Section 6E-4 6E-6. Phase Detectors, Loop Circuits, and Logic Section 6E-4 6E-7. Modulation Section 6E-7 6E-8. MODULATION CONTROL CIRCUIT DESCRIPTION 6E-10 6E-9. FM Input Voltage Processing 6E-10 6E-10. FM Steer Voltage Generation 6E-10 6E-11. FM Control Signals Generation 6E-10 6E-12. FM TROUBLE SHOOTING (A14) 6E-11 6E-13. Frequency Check 6E-11 6E-14. Modulation Check 6E-12 6E-15. Input Signals and Control Input Signals Checks 6E-12 6E-16. FM ADJUSTMENTS 6E-13 6E-17. Adjustments on the Modulation Control PCA (A11) 6E-13 6E-18. Alignment of FM PCA (A14) 6E-14

6F INTERNAL MODULATION OSCILLATOR 6F-1

6F-1. MODULATION OSCILLATOR BLOCK DIAGRAM 6F-1 6F-2. INTERNAL MODULATION OSCILLATOR

CIRCUIT DESCRIPTION 6F-1 6F-3. Direct Digital Synthesized Wave Generator 6F-1 6F-4. Pulse Generator 6F-3 6F-5. Signal Routing 6F-3 6F-6. MOD OSCILLATOR TROUBLESHOOTING AND

ADJUSTMENTS 6F-4 6F-7. Direct Digital Synthesizer Troubleshooting 6F-4 6F-8. Pulse Generator Troubleshooting 6F-5

7 LIST OF REPLACEABLE PARTS 7-1

TABLE OF CONTENTS 7-1

7-1. INTRODUCTION 7-2 7-2. HOW TO OBTAIN PARTS 7-2 7-3. SERVICE CENTERS 7-3

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TABLE OF CONTENTS, continued

SECTION TITLE PAGE

8 SCHEMATIC DIAGRAMS 8-1

TABLE OF CONTENTS 8-1

APPENDICES

A. INSTRUMENT PRESET STATE A-l B. SPECIAL FUNCTION TABLE B-l C. REJECTED ENTRY ERROR CODES C-l D. OVERRANGE/UNCAL STATUS CODES D-l E. SELF-TEST STATUS CODES E-l F. COMPENSATION MEMORY STATUS CODES F-l G. EXAMPLE CALIBRATION CONTROLLER PROGRAMS G-l H. COMPENSATION PROCEDURES H-l I. REAR PANEL AUX CONNECTOR PINOUT 1-1

viilviii

List of Tables

TABLE TITLE PAGE

1-1. Accessories Included with each Signal Generator 1-3 1-2. Optional Accessories 1-3 1-3. 6080A/AN Specifications 1-4 1-4. Typical Signal Generator Performance 1-9

2-1. Frequency Coverage Bands 2-3

3-1. Front Panel Controls for AM Calibration Procedure 3-5 3-2. Remote Programming Commands for AM Calibration Procedure 3-7 3-3. Front Panel Controls for FM Calibration Procedure 3-8 3-4. Remote Programming Commands for FM Calibration Procedure 3-10 3-5. Front Panel Controls for Level Calibration Procedure 3-12 3-6. Remote Programming Commands for Level Calibration Procedure 3-14 3-7. Front Panel Controls for Reference Oscillator Calibration Procedure 3-15 3-8. Remote Programming Commands for Reference Oscillator

Calibration Procedure 3-17

4-1. Recommended Test Equipment 4-2 4-2. High-Level Accuracy Test Conditions 4-7 4-3. High-Level Accuracy Test Conditions Sample 4-8 4-4. Modulation Tests Requirements 4-17 4-5. AM Test Conditions 4-19

6-1. Module Exchange Assemblies 6-4 6-2. General Self-Test Results 6-8 6-3. Digital Test Results 6-9 6-4. AM Test Conditions 6-9 6-5. FM Tests 6-10 6-6. Phase Modulation Test Conditions 6-10 6-7. DC FM Tests 6-10 6-8. Coarse Loop Tests 6-11 6-9. Sub-Synthesizer Tests 6-11 6-10. Sum Loop Tests 6-11 6-11. RF Output Tests 6-12 6-12. Pulse Modulator Tests 6-12

6-13. Filter Tests 6-13 6-14. Status Signals and Codes 6-13 6-15. Parameter Settings of Diagnostic States 6-14

(continued on page x)

LIST OF TABLES, continued

TABLE TITLE PAGE

6A-1. Supplies Provided by Power Supply Assembly 6A-3

6C-1. Sub-Synthesizer PCA Test Points 6C-11 6C-2. A3 Sub-Synthesizer VCO PCA DC Voltages 6C-17 6C-3. Coarse Loop RF Voltage Levels 6C-24 6C-4. N-Divider Logic States 6C-25 6C-5. Discriminator RF Section Levels 6C-26 6C-6. A2 Coarse Loop PCA Test Points 6C-27 6C-7. A5 Coarse Loop VCO PCA Expected DC Voltages 6C-32 6C-8. Sum Loop Frequencies 6C-34 6C-9. A12 Sum Loop PCA RF Circuitry Test Information 6C-39 6C-10. A12 Sum Loop PCA RF Section DC Bias Voltages 6C-40 6C-11. A12 Sum Loop PCA Test Points 6C-41 6C-12. A9 Sum Loop VCO PCA Expected DC Voltages 6C-46

6D-1. Band, Filter, and Frequency Programming Data 6D-7 6D-2. Frequency Band Logic States 6D-8 6D-3. Modulator - Detector Nominal Voltages 6D-9 6D-4. A11 Modulation Control PCA Test Points 6D-9 6D-5. Attenuator Levels 6D-21 6D-6. Attenuator Level Control 6D-22

6E-1. Modulation Control Table (@ 800 MHz RF Frequency) 6E-8 6E-2. Modulation Ranges and FM DAC Values 6E-9 6E-3. FM Oscillator Frequency Check Table (Normal Operation) 6E-11 6E-4. FM Oscillator Modulation Control (Normal Operation) 6E-12 6E-5. FM - Mod Rate Specifications 6E-15

List of Illustrations

FIGURE TITLE PAGE

3-1. Basic Structure of Calibration Program 3-2 3-2. Structure of the AM Calibration Program 3-6 3-3. Basic Structure of FM Calibration Program 3-9 3-4. Basic Structure of Level Calibration Program 3-13 3-5. Basic Structure of the Reference Oscillator Calibration Program 3-16

4-1. Two-Turn Loop 4-4 4-2. Alternate-Level Accuracy Test Equipment Setup 4-12

6-1. Instrument Block Diagram 6-2 6-2. Instrument Troubleshooting Tree 6-3

6A-1. Power Supply Block Diagram 6A-2

6B-1. Controller Block Diagram 6B-2

6B-2. Address Decoding 6B-7

6C-1. Frequency Synthesis Fault Tree 6C-2 6C-2. Sub-Synthesizer Block Diagram 6C-3

6C-3. Triple Modulus Prescaler 6C-5

6C-4. N-Divider 6C-6

6C-5. N-Divider Timing Diagram 6C-7 6C-6. Reference Section Block Diagram 6C-18 6C-7. Coarse Loop Block Diagram 6C-21

6C-8. Sum Loop Block Diagram 6C-33

6D-1. RF Level Fault Tree 6D-1 6D-2. RF Level Block Diagram 6D-2

6E-1. FM/øM Fault Tree 6E-1 6E-2. FM/øM Block Diagram 6E-3 6E-3. FM/øM Timing Diagram 6E-5

6F-1. Modulation Oscillator Block Diagram 6F-1

xi / xii

Section 1

Introduction and Specifications

INTRODUCTION 1-1.

The 6080A/AN Synthesized RF Signal Generator (also referred to throughout as the "signal generator") is a fully programmable, precision, synthesized signal generator. The 6080A/AN is designed for applications that require good modulation, frequency accuracy, and output level performance with excellent spectral purity. The signal generator is well suited for testing a wide variety of RF components and systems including filters, amplifiers, mixers, and radios, particularly off-channel radio testing.

Specifications of the 6080A/AN are provided at the end of this section. The salient features of the 6080A/AN are as follows:

• RF frequency range of 0.5 MHz to 1024 MHz in 1 Hz steps

• RF level range of +13 to -137 dBm in 0.1 dB steps

• Internal and External Modulation: AM, FM, and Pulse

• Internal 10 Hz to 100 kHz Synthesized Sine Wave Modulation Oscillator

• Fifty Storable and Recallable Memory Locations

• Standard IEEE-488 (GPIB) Interface, complying with ANSI/IEEE Standards

488.1-1987 and 488.2-1987

• Closed-case calibration capabilities for Frequency Reference, AM, FM, and Level.

UNPACKING THE SIGNAL GENERATOR 1-2.

The shipping container should include a 6080A/AN Synthesized RF Signal generator, an Operator Manual, a Service Manual, a line power cord and two BNC dust caps. Accessories ordered for the signal generator are shipped in a separate container.

1-1

INTRODUCTION AND SPECIFICATIONS

SAFETY 1-3.

This manual contains information, warnings, and cautions that should be followed to ensure safe operation and to maintain the generator in a safe condition.

The signal generator is designed primarily for indoor use and may be operated in temperatures from 0 to 50° C without degradation of its safety.

TO AVOID ELECTRIC SHOCK, USE A POWER CORD THAT HAS A THREE-PRONG PLUG. IF THE PROPER POWER CORD IS NOT USED, THE 6080A/AN CASE CAN DEVELOP AN ELECTRICAL POTENTIAL ABOVE EARTH GROUND.

PIVOTING MODULE INSTRUCTIONS

IF NECESSARY DURING REPAIRS, PIVOT THE TOP (SYNTHESIZER) MODULE UP TO ALLOW ACCESS TO ALL PARTS OF THE SIGNAL GENERATOR THE MODULE IS HEAVY AND CARE SHOULD BE EXERCISED. THE GAS STRUT IS PROVIDED FOR PROTECTION. CHECK THE CORRECT OPERATION OF THE GAS STRUT BY NOTING THE RESISTANCE TO RAPID CLOSING OF THE MODULE WHILE YOU FIRMLY GRASP THE MODULE BY THE HANDLE.

WARNING

OPENING AND CLOSING INSTRUCTIONS ARE GIVEN BELOW AND ARE REPEATED ON THE DECAL ON THE TOP FRONT OF THE SYNTHESIZER MODULE.

RAISING THE MODULE:

1. REMOVE THREE HOLD-DOWN SCREWS LOCATED ON THE SIDE RAILS.

2. GRASP THE HANDLE AND LIFT UP.

3. LOCK IN THE UP POSITION BY INSTALLING ONE SCREW IN THE PROTRUDING BOSS ON EACH SIDE RAIL.

LOWERING THE MODULE:

1. SUPPORT IN THE UP POSITION AND REMOVE TWO LOCK UP SCREWS.

2. GRASP THE HANDLE AND LOWER THE MODULE KEEPING YOUR HANDS CLEAR.

3. LOCK IN THE DOWN POSITION BY REINSTALLING THE THREE HOLD-DOWN SCREWS.

1-2

INTRODUCTION AND SPECIFICATIONS

ACCESSORIES 1-4.

The accessories and manuals included with each signal generator are listed in Table 1-1. The optional accessories available are listed in Table 1-2.

SIGNAL GENERATOR SPECIFICATIONS 1 -5.

Table 1-3 lists the 6080A/AN specifications. Table 1-4 lists typical performance characteristics.

Table 1-1. Accessories Included with each Signal Generator

DESCRIPTION

Operator Manual

Service Manual Line Power Cord BNC Dust Cap

Table 1-2. Optional Accessories

DESCRIPTION

Rack Mount Kit Includes M05-205-600 (5 1/4-inch Rack Mount Ears)

and M00-280-610 (24-inch Rack Slides) IEEE-488 Shielded Cable, 1 meter IEEE-488 Shielded Cable, 2 meters IEEE-488 Shielded Cable, 4 meters Coaxial Cable, 50 ohms, 3 feet, BNC (m) both ends Coaxial Cable, 50 ohms, 6 feet, BNC (m) both ends

PART NUMBER

857748 868906 284174 478982

QUANTITY

1 1 1

ACCESSORY NO.

Y6001

Y8021 Y8022 Y8023

Y9111 Y9112

1-3

INTRODUCTION AND SPECIFICATIONS

Unless otherwise noted, the following performance is guaranteed over the specified

environmental and AC power line conditions two hours after turn-on.

FREQUENCY (10-DIGIT DISPLAY)

RANGE

BAND .50-15 MHz BAND 15-32 MHz BAND 32-64 MHz BAND 64-128 MHz BAND 128-256 MHz BAND 256-512 MHz BAND 512-1024 MHz

Table 1-3. 6080A/AN Specifications

NOTE

0.50 to 1024 MHz in 7 bands:

0.50 to 14.999999 MHz, 15 to 31.999999 MHz,

32 to 63.999999 MHz, 64 to 127.999999 MHz,

128 to 255.999999 MHz,

256 to 511.999999 MHz,

512 to

1024 MHz.

RESOLUTION

ACCURACY

REFERENCE (Internal)

REFERENCE (External)

AMPLITUDE (3 1/2-DIGIT DISPLAY)

RANGE

RESOLUTION

1 Hz

Same as reference (See REFERENCE).

The unit operates on an internal 10 MHz Temperature Compensated Crystal Oscillator (TCXO). The frequency variation will be < 10 ppm peak to peak over the temperature range of 0 to +50°C.

Internal reference signal (10 MHz) available at rear

panel REF OUT connector, level > 0 dBm, terminated into 50 ohms.

Frequency stability after 2 hour warmup is < ± 0.05 ppm/hour at + 25°C ± 5°C.

Accepts 5 or 10 MHz signal. Level required is 0.5 to

2.0V RMS into 50 ohms termination.

+13 to

-137

dBm

0.1 dB (<1% or 1 nV in Volts).

Annunciators for dB, dBm, V, mV, μV, dB mV,

dB μV,

dBf,

and

EMF.

1-4

ACCURACY

SOURCE VSWR

FLATNESS

± 1.5 dB from +13 to -117 dBm ± 3 dB from -117 to -137 dBm

< 1.5:1 for levels below -10 dBm, < 2.5:1 elsewhere.

±1.0dB@+10dBm.

INTRODUCTION AND SPECIFICATIONS

Table 1-3. 6080A/AN Specifications (cont)

SPECTRAL PURITY (CW ONLY)

NON-HARMONIC SPURIOUS < -100 dBc for offsets greater than 15 kHz.

NOTE

Fixed frequency spurs are <-100 dBc or < -140 dBm, whichever is larger.

NOTE

dBc refers to decibels relative to the carrier frequency, or in this case, relative to the signal level.

HARMONICS / SUBHARMONICS < -30 dBc for levels < +7 dBm.

POWER LINE SPURIOUS < -40 dBc within ± 15 kHz of carrier.

RESIDUAL FM (RMS in

0.05- to 15-kHz band) < 20 Hz

SSB PHASE NOISE < -130 dBc/Hz @ 20 kHz offset for Frequency

< 512 MHz

< -124 dBc/Hz @ 20 kHz offset for Frequency

> 512 MHz

RESIDUAL AM (in 0.05- to 15-kHz Band) <-80 dBc. (.01%)

AMPLITUDE MODULATION (3-DIGIT DISPLAY)

(Amplitude < 0 dBm)

INDICATED DEPTH RANGE ....................... 0 to 99.9%.

RESOLUTION 0.1%.

ACCURACY (0 to 90%) + 7% AM at 1 kHz rate

DISTORTION < 5% Total Harmonic Distortion (THD)

@ 50% AM (rates = 0.1, 1, 10 kHz)

BANDWIDTH (3 dB) 10 Hz to 100 kHz

INCIDENTAL FM < 200 Hz at 1 kHz rate, 50% AM.

FREQUENCY MODULATION (3-DIGIT DISPLAY)

DEVIATION RANGES 0 to 999 Hz

1 to

9.99

kHz

10 to

99.9

kHz

100 to 999 kHz

1 to 4 MHz

EXT RATES DC to 100 kHz

1-5

INTRODUCTION AND SPECIFICATIONS

DEVIATION DEV RF Frequency (rates = .1, 1, 50 kHz)

RESOLUTION 3 digits.

ACCURACY +(5% +10 Hz) (measured vs. indicated deviation, 1 kHz rate)

DISTORTION < 5% THD for rates of 0.1, 1, and 50 kHz (does not include effects of residual FM) < 2% THD for deviation < 20 kHz and 1 kHz rate

INCIDENTAL AM < 1% AM at 1-kHz rate, for peak deviation < 100 kHz

Table 1-3. 6080A/AN Specifications (cont)

0 to 1 kHz min Frequency < 1 MHz 0 to 10 kHz min 1 MHz < Frequency < 32 MHz 0 to 100 kHz mln 32 MHz < Frequency < 128 MHz 0 to 1 MHz min Frequency > 128 MHz

PULSE MODULATION (RF Frequencies from 10 to 1024 MHz)

ON/OFF RATIO 35 dB minimum

RISE & FALL TIMES < 1 μs

PULSE WIDTH Minimum at least 5 μs

REP RATE Minimum at least 50 Hz to 50 kHz

EXTERNAL PULSE MODULATION The pulse input is TTL compatible and 50 ohm

terminated with an internal active pull-up. It can be modeled as 1.2V in series with 50 ohms at the pulse modulation input connector. The signal generator senses input terminal voltage and turns the RF off when the terminal voltage drops below 1 ± 0.1 V. Max allowable applied voltage, ± 10V.

NON-VOLATILE MEMORY 50 instrument states are retained for typically 2 years,

even with the power mains disconnected.

REVERSE POWER PROTECTION

PROTECTION LEVEL Up to 50 watts from a 50 ohm source. Up to 50V DC.

Signal generator output is AC coupled. Protection is provided when the signal generator is off.

1-6

TRIP/RESET Flashing RF OFF annunciator indicates a tripped

condition. Pushing RF ON/OFF button will reset signal generator.

INTRODUCTION AND SPECIFICATIONS

Table 1-3. 6080A/AN Specifications (cont)

IEEE-488

INTERFACE FUNCTIONS SH1, AH1, T5, TE0, L3, LEO, SR1, RL1, PRO,

DC1, DT1, C0, and E2. Complies with IEEE Std.

488.1-1987 and 488.2-1987.

INTERNAL MODULATION SOURCE

SINE WAVE 10 Hz to 100 kHz synthesized sine wave.

DISPLAY RANGES 00.1 to 99.9 Hz

100 to 999 Hz

1.00

9.99

kHz

10.0

99.9

kHz

100 to 200 kHz

FREQUENCY RESOLUTION 0.1 Hz or 3 digits

OUTPUT LEVEL RANGE 0 to 1V RMS into 600 ohms

DISTORTION < 2% THD

OUTPUT IMPEDANCE 600 ohms ±10%

EXTERNAL MODULATION

1V peak provides indicated modulation index. Nominal input impedance is 600 ohms. Maximum input level is ± 5 V peak.

MODULATION MODES

Any combination of AM, PULSE, and FM, internal or external, may be used.

GENERAL

TEMPERATURE

Operating 0 to +50°C (+32 to +122°F). Non-Operating -40 to +75°C (-40 to +167°F).

HUMIDITY RANGE

Operating 95% to +30°C, 75% to +40°C, and 45% to +50°C.

ALTITUDE

Operating Up to 10,000ft.

VIBRATION

Non-Operating 5 to 15 Hz at 0.06 inch, 15 to 25 Hz at 0.04 inch,

and 25 to 55 Hz at 0.02 inch, double amplitude (DA).

SHOCK

Non-Operating MIL T 28800D Class 5, Style E.

1-7

INTRODUCTION AND SPECIFICATIONS

ELECTROMAGNETIC COMPATIBILITY.. The radiated emissions induce < 1 μV into a 1-inch

COMPLIES WITH THE FOLLOWING STANDARDS:

CE03 of MIL-STD-461B (Power and interconnecting leads), 0.015 to 50 MHz. RE02 of MIL-STD-461B (14 kHz to 10 GHz). FCC Part 15 (J), class A. CISPR 11.

SIZE Width Height Depth

POWER 115/230 VAC, ± 10% 50, 60, and 400 Hz ±10%

Table 1-3. 6080A/AN Specifications (cont)

diameter, 2-turn loop, 1-inch from any surface as measured into a 50-ohm receiver.

43 cm

13.3

17 in

5.25

59.7

23.5

250 VA maximum

cm in

WEIGHT < 27 kg (60 Ibs).

1-8

Table 1-4. Typical Signal Generator Performance

FREQUENCY (10-DIGIT DISPLAY)

INTRODUCTION AND SPECIFICATIONS

RANGE

BAND .01-15 MHz

BAND 15-32 MHz ..............................

BAND 32-64 MHz BAND 64-128 MHz BAND 128-256 MHz BAND 256-512 MHz BAND 512-1056 MHz

RESOLUTION

ACCURACY

REFERENCE (Internal)

0.01 to 1056 MHz in 7 bands:

0.01 to 14.999999 MHz, 15 to 31.999999 MHz,

32 to 63.999999 MHz,

64 to 127.999999 MHz, 128 to 255.999999 MHz,

256 to 511.999999 MHz,

512 to

1056 MHz.

1 Hz

Same as reference (See REFERENCE).

The unit operates on an internal 10 MHz TCXO. The

Frequency variation will be < 2 ppm peak to peak over the temperature range of 0 to +50°C. Aging rate of <± 1 ppm/year typical.

Internal reference signal (10 MHz) available at rear panel REF OUT connector, level > 0 dBm, terminated in 50 ohms.

Frequency stability after 2 hour warmup is < ± 0.05 ppm/hour at +25°C ± 5°C.

REFERENCE (External)

Choice is internal swit

AMPLITUDE (3 1/2-DIGIT DISPLAY)

RANGE

RESOLUTION

ACCURACY (+23 ± 50°C)

ACCURACY (0 to +50°C)

Accepts (1, 2, or 5) or 10 MHz signal. Level required is 0.2 to 2.0 Vrms into 50-ohms termination.

NOTE

ch selectable (1, 2, or 5 MHz).

+19 to -140 dBm for Frequency < 512 MHz. +16 to -140 dBm for Frequency > 512 MHz.

0.1 dB (< 1% or 1 nV in volts). Annunciators for dB,

dBm, dBf,

V, mV, μV, dB mV, dB μV, and

EMF.

± 1 dB from +19 to -127 dBm and for F from 0.4 to

512

MHz.

± 1 dB from +16 to -127 dBm and for F > 512 MHz.

± 1.5 dB from +19 to -127 dBm and for from 0.4 to

512

MHz.

± 1.5 dB from +16 to -127 dBm and for F > 512 MHz.

1-9

INTRODUCTION AND SPECIFICATIONS

Table 1-4. Typical Signal Generator Performance (cont)

SOURCE VSWR < 1.5:1 for levels below +1 dBm, < 2.0:1 elsewhere.

FLATNESS (+23 + 5°C) + 0.5 dB @ +10 dBm.

FLATNESS (0 to + 50°C) + 0.75 dB @ +10 dBm.

SPECTRAL PURITY (CW ONLY)

NON-HARMONIC SPURIOUS < -100 dBc for offsets greater than 10 kHz.

± 2 dB from +19 to -100 dBm and for F from 0.01 to

0.4

MHz.

± 3 dB from -100 to -127 dBm and for F from 0.01 to

0.4

MHz.

F > 0.1

MHz.

F > 0.1

MHz.

NOTE

Fixed frequency spurs are < -100 dBc or < -140 dBm whichever is larger.

NOTE

dBc refers to decibels relative to the carrier frequency, or in this case, relative to the signal level.

HARMONICS < -30 dBc for levels < +13 dBm.

< -25 dBc for levels < +16 dBm.

SUBHARMONICS None

POWER LINE SPURIOUS < -50 dBc within + 10 kHz of carrier.

RESIDUAL FM (RMS in 0.3- < 0.2 Hz for .01 to 15 MHz Band to 3-kHz band) < 0.2 Hz for 15 to 32 MHz Band

< 0.2 Hz for 32 to 64 MHz Band < 0.2 Hz for 64 to 128 MHz Band < 0.2 Hz for 128 to 256 MHz Band < 0.5 Hz for 256 to 512 MHz Band < 1 Hz for 512 to 1056 MHz Band

RESIDUAL FM (RMS in 0.05- < 0.5 Hz for .01 to 15 MHz Band

to 15-kHz band) < 0.5 Hz for 15 to 32 MHz Band

< 0.5 Hz for 32 to 64 MHz Band < 0.5 Hz for 64 to 128 MHz Band < 0.5 Hz for 128 to 256 MHz Band < 1 Hz for 256 to 512 MHz Band < 2 Hz for 512 to 1056 MHz Band

1-10

SSB PHASE NOISE < -131 dBc/Hz @ 20 kHz offset

@ Frequency = 250 MHz

INTRODUCTION AND SPECIFICATIONS

Table 1-4. Typical Signal Generator Performance (cont)

< -136 dBc/Hz @ 20 kHz offset @ Frequency = 1 GHz

< -140 dBc/Hz @ 20 kHz offset

@ Frequency = 500 MHz

BROADBAND SSB PHASE NOISE FLOOR < -140 dBc/Hz @ 100 kHz offset @ +13 dBm.

RESIDUAL AM (in 0.05- to 15-kHz Band) < -80 dBc.

AMPLITUDE MODULATION (3-DIGIT DISPLAY)

(Amplitude < +10 dBm)

INDICATED DEPTH RANGE............................ 0 to 99.9%.

RESOLUTION 0.1%.

ACCURACY (0 to 90%) +(2% AM + 4% of setting) at 1 kHz rate

DISTORTION < 1.5% THD to 30% AM (rate = 1 kHz) < 3% THD to 70% AM

< 5% THD to 90% AM

BANDWIDTH (3 dB) 10 Hz to 100 kHz

DC to 100 kHz (external only)

INCIDENTAL FM < 200 Hz at 1 kHz rate, 50% AM.

NOTE

AM specifications apply where RF frequency - Modulation Frequency is greater than 150 kHz

FREQUENCY MODULATION (3-DIGIT DISPLAY)

DEVIATION RANGES 0 to 999 Hz

1 to

9.99

kHz

10 to

99.9

kHz

100 to 999 kHz

1 to 4 MHz

MAXIMUM DEVIATION DEV RF Frequency

500 kHz .01 to 15 MHz 125 kHz 15 to 32 MHz 250 kHz 32 to 64 MHz 500 kHz 64 to 128 MHz

1 MHz 128 to 256 MHz 2 MHz 256 to 512 MHz 4 MHz 512 to

1056

MHz

1-11

INTRODUCTION AND SPECIFICATIONS

Table 1-4. Typical Signal Generator Performance (cont)

Minimum FM rate at max deviation in any band, ACFM mode is 60 Hz.

@ 1/2 max deviation....30 Hz

@ 1/4 max deviation....15 Hz from 1/4 to 1/64 max

deviation.... 15 Hz

@ 1/64 max deviation.... 60 Hz

@ 1/128 max deviation.... 40 Hz

@ 1/256 or less max deviation.... 15 Hz

No limit in DCFM mode.

RESOLUTION

ACCURACY

DISTORTION (does not include effects of residual noise)

LOW DISTORTION MODE (SPCL 731)

BANDWIDTH (1.5 dB)

INCIDENTAL AM

DCFM CENTER FREQUENCY ERROR ..

3 digits.

±(5% of setting + 10 Hz) for rates of .05 to 50 kHz.

< 2% THD for rates from .05 to 50 kHz < 1% THD at 1/2 or less max deviation and rates

from 0.1 to 50 kHz.

< 0.3% THD + noise @ 3.5 kHz deviation and @ rates from 0.3 to 3 kHz

ACFM 20 Hz to 100 kHz subject to low frequency max deviation limits

DCFM DC to 100 kHz

< 1% AM at 1 kHz rate, for the maximum deviation or 100 kHz, whichever is less. Valid for RF frequency

> 0.5 MHz

(0.1%

of dev + 500 Hz) @ F = 1 GHz

NOTE

Afte

r DCFM Cal and without any FM range changes

1-12

LOW RATE EXTERNAL FM (Access by SPCL 711 )

MAX DEVIATION

DROOP

BANDWIDTH (3 dB)

RF Band MAX DEV @ 10 Hz Rate

sine wave square wave

.01 to 15 MHz 80 kHz 40 kHz

15 to 32 MHz 20 kHz 10 kHz 32 to 64 MHz 40 kHz 20 kHz 64 to 128 MHz 80 kHz 40 kHz

128 to 256 MHz 160 kHz 80 kHz 256 to 512 MHz 320 kHz 160 kHz 512 to

1056

MHz 640 kHz 320 kHz

< 30% on a 5 Hz square wave

0.5 Hz to 100 kHz (typical)

INTRODUCTION AND SPECIFICATIONS

Table 1-4. Typical Signal Generator Performance (cont)

MAX DC INPUT

INCIDENTAL AM

FM specific

RF Frequency

PHASE MODULATION (3 DIGIT DISPLAY)

DEVIATION RANGES

MAXIMUM DEVIATION

±10mV

< 1 % AM @ 1 kHz rate and < 10 kHz dev

NOTE

ations apply where:

- Deviation > 150 kHz

- Mod Rate > 150kHz

0 to

.999

rad

1 to

9.99

rad

10 to

99.9

rad

100 to 400 rad

DEV RF FREQUENCY

50 rad .01 to 15 MHz

12.5

rad 15 to 32 MHz

25 rad 32 to 64 MHz 50 rad 64 to 128 MHz

100 rad 128 to 256 MHz 200 rad 256 to 512 MHz 400 rad 512 to

1056

MHz

RESOLUTION

ACCURACY

DISTORTION (does not include effects of residual Phase noise)

BANDWIDTH (3 dB)

INCIDENTAL AM

HIGH RATE PHASE MODULATION (Access by SPCL 721)

3 digits

±(5% + 0.1 rad) at 1 kHz rate.

< 2% THD for 1 kHz rate.

< 1% THD for 1/2 or less max deviation for 1 kHz rate

ACPM 20 Hz to 15 kHz

DCPM DC to 15 kHz

< 1% AM at 1 kHz rate for peak dev < 10 rad. Valid for F>1 MHz.

MAX DEV RF FREQUENCY

5 rad .01 to 15 MHz

1.25

rad 15 to 32 MHz

2.5 rad 32 to 64 MHz

5 rad 64 to 128 MHz 10 rad 128 to 256 MHz

20 rad 256 to 512 MHz 40 rad 512 to

1056

MHz

1-13

INTRODUCTION AND SPECIFICATIONS

Table 1-4. Typical Signal Generator Performance (cont)

HIGH RATE PHASE MODULATION........... ACPM 20 Hz to 100 kHz

BANDWIDTH (3 dB) DCPM DC to 100 kHz

(Access by SPCL 721)

Phase Modulation specs are valid where RF Frequency - Modulation Frequency > 150 kHz

PULSE MODULATION (RF FREQUENCIES FROM 10 TO 1056 MHz)

ON/OFF RATIO 40 dB minimum for frequencies from 100to 1056 MHz

RISE & FALL TIMES < 15 ns

LEVEL ERROR For pulse widths > 50 ns, power in the pulse will be

DUTY CYCLE (ext mod) 0-100%

NOTE

60 dB minimum for frequencies less than 100 MHz

within ±0.7 dB of the measured CW level.

REP RATE (ext mod) DC-16 MHz

INTERNAL MODULATION Internal rates, approx 50% duty cycle.

EXTERNAL PULSE MODULATION The pulse input is TTL compatible and 50 ohm

PULSE MODULATION (RF FREQUENCIES < 10 MHz)

RISE & FALL TIMES < 2 X period of RF Frequency.

LEVEL ERROR For pulse widths > 10 X period of RF Frequency,

power in the pulse will be within ±0.7 dB of the measured CW level.

Other specifications are the same as for the 10 to 1056 MHz range.

NON-VOLATILE MEMORY

50 instrument states are retained for typically 2 years, even with the power mains disconnected.

1-14

REVERSE POWER PROTECTION

PROTECTION LEVEL Up to 50 watts from a 50 ohm source, up to 50V DC.

Signal generator output is AC coupled. Protection is provided when the signal generator is off.

INTRODUCTION AND SPECIFICATIONS

Table 1-4. Typical Signal Generator Performance (cont)

TRIP/RESET

IEEE-488

INTERFACE FUNCTIONS

INTERNAL MODULATION SOURCE

SINE WAVE

FREQUENCY ACCURACY

DISPLAY RANGES

FREQUENCY RESOLUTION

OUTPUT LEVEL RANGE

OUTPUT LEVEL RESOLUTION

Flashing RF OFF annunciator indicates a tripped condition. Pushing RF ON/OFF button will reset signal generator.

SH1, AH1, DT1,

T5,

TE0,

C0, and E2.

L3,

LE0, SR1, RL1, PP0, DC1,

0.1 Hz to 200 kHz synthesized sine wave.

Same as reference ±7 mHz

00.1

99.9

100 to 999 Hz

1.00

9.99

kHz

10.0

99.9

kHz

100 to 200 kHz

0.1 Hz or 3 digits

0 to 4V peak into 600 ohms

3 digits or 4 mv peak, whichever is larger

DISTORTION

OUTPUT LEVEL ACCURACY

OUTPUT IMPEDANCE

OTHER WAVEFORMS AVAILABLE BY SPECIAL FUNCTION

EXTERNAL MODULATION INPUTS

1V peak provides indicated modulation inde Nominal input impedance is 600 ohms. Maximum input level is ± 5 V peak.

MODULATION MODES

Any combination of AM, PULSE, and FM or

DIGITAL FREQUENCY SWEEP

SWEEP MODES

< 0.15% THD for output levels > 2V peak and mod frequency < 20 kHz

±(4% + 15 mV) for mod frequency < 100 kHz

600 ohms ±2%

Square Wave (Fmod < 2 kHz) Triangle Wave (Fmod < 5 kHz)

ØM, internal or external, may be used.

Auto, single, or manual

1-15

INTRODUCTION AND SPECIFICATIONS

Table 1-4. Typical Signal Generator Performance (cont)

SWEEP FUNCTIONS

DATA ENTRY PARAMETERS

SWEEP SPEED

SWEEP OUTPUT

PENLIFT

DIGITAL AMPLITUDE SWEEP

SWEEP MODES

SWEEP FUNCTIONS

DATA ENTRY PARAMETERS

SWEEP SPEED

Symmetrical sweep, Asymmetrical sweep, Sweep speed

Sweep width and sweep increment

Minimum 40 ms per increment selectable as (minimum + dwell time) where dwell time can be 0, 20, 50,

100, 200, or 500 ms at each increment.

0 to +10 (± 10%) V. Up to 4096 points in a stepped ramp. Load > 2 kΩ.

TTL, high for retrace. Load > 2 kΩ.

Auto, single, or manual Linear (Volts) or Log (dB)

Symmetrical sweep, Asymmetrical sweep, Sweep speed

Sweep width and sweep increment

Minimum 30 ms per increment selectable as (minimum + dwell time) where dwell time can be 0, 20, 50, 100, 200, or 500 ms at each increment.

SWEEP OUTPUT

PENLIFT

GENERAL

TEMPERATURE

Operating

Non-Operating

HUMIDITY RANGE

Operating

ALTITUDE

Operating

VIBRATION

Non-Operating

SHOCK

Non-Operating

0 to +10 (± 10%) V. Up to 4096 points in a stepped ramp. Load > 2 kΩ.

TTL, high for retrace. Load > 2 kΩ.

0 to +50°C (+32 to +122°F).

-40 to +75°C (-40 to +167°F).

95% to +30°C, 75% to +40 °C, and 45% to +50°C.

Up to 10,000 ft.

5 to 15 Hz at 0.06 inch, 15 to 25 Hz at 0.04 inch, and 25 to 55 Hz at 0.02 inch, double amplitude (DA).

Per MIL T 28800D Class 5, Style E.

1-16

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