Manual / Guide · 1997
Giga-tronics 6062A Synthesized RF Signal Generator — Operation & Maintenance (Service) Manual
- signal generator
- rf
- synthesized
- test equipment
- service manual
Manual / Guide · 1997
Manual Number: Revision: Print Date: 794842 C May 1997 Operation & Maintenance Manual Model 6062A Synthesized R F Signal Generator The instrument has a 7-digit serial number, shown on a sticker on the rear panel. This manual applies to all serial numbers which begin with 96, 97, or 98. Giga-tronics Incorporated 9 4650 Norris Canyon Road 9 San Ramon, California 94583 Phone (510) 328-4650, or (800) 726-4442 9 FAX (510) 328-4700 Repair Service (800) 444-2878 4 Repair Service FAX (510) 328-4702 Scans by ArtekMedia © 2007 DIGITALY REMASTERED OUT OF PRINT- MANUAL SCANS By Artek Media 18265 200th St. Welch, MN 55089 www.artekmedia.com “High resolution scans of obsolete technical manuals” If your looking for a quality scanned technical manual in PDF format please visit our WEB site at www.artekmedia.com or drop us an email at manuals@artekmedia.com and we will be happy to email you a current list of the manuals we have available. If you don’t see the manual you need on the list drop us a line anyway we may still be able to point you to other sources. If you have an existing manual you would like scanned please write for details. This can often be done very reasonably in consideration for adding your manual to our library. Typically the scans in our manuals are done as follows; 1) Typed text pages are typically scanned in black and white at 300 dpi. 2) Photo pages are typically scanned in gray scale mode at 600 dpi 3) Schematic diagram pages are typically scanned in black and white at 600 dpi unless the original manual had colored high lighting (as is the case for some 70’s vintage Tektronix manuals). 4) Most manuals are text searchable 5) All manuals are fully bookmarked All data is guaranteed for life (yours or mine … which ever is shorter). If for ANY REASON your file becomes corrupted, deleted or lost, Artek Media will replace the file for the price of shipping, or free via FTP download. Thanks Dave & Lynn Henderson Artek Media Scans by ArtekMedia © 2007 Information and specifications contained in this manual are subject t o change without notice and d o not represent a commitment on the part of Giga-tronics Incorporated. O Copyright Giga-tronics Incorporated, 1997. All rights reserved. Printed in U.S.A. WARRANTY Giga-tronics instruments are warranted against defective materials and workmanship for one year from date of shipment. Giga-tronics will at its option repair or replace products that are proven defective during the warranty period. This warranty DOES NOT cover damage resulting from improper use, nor workmanship other than Giga-tronics service. There is no implied warranty of fitness for a particular purpose, nor is Giga-tronics liable for any consequential damages. Giga-tronics Service Contacts Territory. Customer Servige: Applications and Technical Support: Primary Contact Secondary Contact Pacific Rim & Far East (800) 444-2378 (5 10) 328-4646 (800) 726-4442 (510) 328-4670 Europe & South Africa (800) 444-2378 (510 328-4646 (800) 726-4442 (510) 328-4664 USA & Canada AII Territories Scans by ArtekMedia © 2007 Table of Contents 1 4 2 AboutThisManual .............................................. Conventions.................................................... Record of Manual Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix xi xiii xv 1.1 ProductDescription ....................................................... 1.1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1.2 Required Equipment ................................................ 1.1.3 Tools and Test Equipment ........................................... 1.1.4 Cooling ....................................................... 1.1.5 Cleaning ........................................................ 1.1.6 Mnemonics ....................................................... 1.1.7 Options .......................................................... 1.1.8 Accessories Included ............................................... 1.1.9 Accessories Available ............................................... 1.1.1 0 Receiving Inspection ................................................ 1.1.1 1 Preparation for Reshipment ........................................... 1.2 Performance Specifications ................................................. 1.2.1 Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2.2 Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2.3 Spectral Purity (CW Only) ........................................... 1.2.4 Amplitude Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2.5 Frequency Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2.6 Phase Modulation (QM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2.7 Pulse Modulation ................................................. 1.2.8 Modulation Source ................................................. 1.2.9 Non-Volatile Memory ............................................... 1.2.10 Reverse Power Protection ............................................ 1.3 General Specifications ..................................................... 1.4 Supplemental Characteristics ............................................... 1-1 1-1 1-2 1-2 1-2 1-2 1-2 1-3 1-3 1-3 1-3 14 1-5 1-5 1-5 1-6 1-6 1-7 1-7 1-8 1-8 1-8 1-8 1-9 1-10 Introduction Operation 2.1 Installation ............................................................... 2.1.1 Mounting the Generator.............................................. 2.1.2 Rear Panel Description .............................................. 2.1.3 Power and Fuse Requirements........................................ 2.1.4 Voltage and Fuse Selection .......................................... 2.1.5 VDE Type Voltage and Fuse Holder .................................... 2.2 Operation ................................................................ 2.3 LocalControl ............................................................ 2.3.1 Function-Data-UnitsEntry ............................................ 2.3.2 EditEntry ......................................................... 2.3.3 Step Entry ........................................................ 2.3.4 Status and Clear Entries ............................................. 2.3.5 RF Output......................................................... Manual No. 794842. Rev C. May 1997 Scans by ArtekMedia © 2007 2-1 2-1 2-2 2-3 24 2-5 2-6 2-11 2-11 2-12 2-12 2-12 2-13 I Model 6062A Synthesized RF Signal Generator 2.3.6 Modulation and Rate ................................................ 2.3.7 Memory ........................................................... 2.3.8 Software Compensation Procedures .................................... 2.3.9 Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 Remote Operation ......................................................... 2.4.1 Remote-Control .................................................... 2.4.2 Setting Up the IEEE-488 Interface...................................... 2.4.3 Programming Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4.4 Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4.5 IEEE-488 Interface Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4.6 Address Mode...................................................... 2.4.7 Talk-Only Mode..................................................... 2.4.8 Listen-Only Mode ................................................... 2.4.9 Command Syntax ................................................... 2.4.1 0 Command Descriptions .............................................. 2.4.1 1 Command Processing ............................................... 2.4.12 Timing Data........................................................ 2.4.1 3 Power-on Conditions ................................................ 2.5 Operating Reference ....................................................... 2.5.1 Amplitude and Frequency Entry ........................................ 2.5.2 Amplitude Fixed Range .............................................. 2.5.3 Amplitude Units Conversion ........................................... 2.5.4 Amplitude Units Selection ............................................ 2.5.5 Cursor Edit Entry ................................................... 2.5.6 Memory Entry ...................................................... 2.5.7 Modulation Entry .................................................... 2.5.8 Relative Function ................................................... 2.5.9 RF Output OnIOff Entry .............................................. 2.5.1 0 Special Function Entry ............................................... 2.5.1 1 Status 8. Clear Entry ................................................. 2.5.12 Step Entry ......................................................... 3 Theory of Operation 3.1 Introduction............................................................... 3.1.1 Front Panel Section ................................................. , 3.1.2 Module Section ..................................................... 3.1.3 Rear Panel Section.................................................. 3.2 Functional Description ...................................................... 3.2.1 Level ............................................................. 3.2.2 Amplitude Modulation ................................................ 3.2.3 Pulse Modulation ................................................... 3.2.4 Frequency ......................................................... 3.2.5 Frequency Modulation ............................................... 3.2.6 Phase Modulation .................................................. 3.3 Software Operation ........................................................ 3.3.1 User Interface ...................................................... 3.3.2 Amplitude Control ................................................... 3.3.3 Attenuators ........................................................ 3.3.4 Level DAC ......................................................... 3.3.5 Temperature Compensation........................................... 3.3.6 Reverse Power Protector ............................................. 3.3.7 Frequency Reference Control ......................................... 3.3.8 Frequency Control .................................................. 11 2-13 2-13 2-13 2-14 2-17 2-17 2-17 2-18 2-25 2-28 2-29 2-31 2-31 2-32 2-35 2-52 2-53 2-55 2-56 2-56 2-58 2-59 2-60 2-61 2-63 2-64 2-66 2-67 2-68 2-69 2-71 Scans by ArtekMedia © 2007 . . 3-1 3-1 3-1 3-2 3-3 3-3 3-3 3-4 3-4 3-4 3-4 3-5 3-5 3-5 3-5 3-6 3-6 3-6 3-6 3-6 Manual No. 794842 Rev C May 1997 Model 6062A Synthesized RF Signal Generator 3.3.9 Modulation Modes .................................................. 3.3.10 Compensation Memory .............................................. 3.3.1 1 Power-On Self-Test (POST) .......................................... 3.3.12 Special Functions................................................... 3.3.1 3 Software Compensation Procedures.................................... 3.3.14 Status Signals ..................................................... 3.4 Detailed Circuit Descriptions................................................. 3.4.1 Display PC Assembly (Al) ........................................... 3.4.2 Controller PC Assembly (A2) ......................................... 3.4.3 IEEE-488 Interface Assembly (A3) ..................................... 3.4.4 Synthesizer PC Assembly (A4) ........................................ 3.4.5 VCO PC Assembly (A5) ............................................. 3.4.6 Output PC Assembly (A6 and A7) ..................................... 3.4.7 Attenuator PC Assembly (A8) ......................................... 3.4.8 Power Supply Assembly (A9) ......................................... 4 Calibration & Testing 4.1 Introduction .............................................................. 4.1.1 Safety ............................................................ 4.1.2 Recommend Test Equipment ......................................... 4.2 Calibration Procedures ..................................................... 4.2.1 Power Supply Adjustment ............................................ 4.2.2 Extemal Modulation Level Indicator Adjustment .......................... 4.2.3 Synthesizer PC Assembly ............................................ 4.2.4 Output Assembly Adjustment ......................................... 4.3 PerformanceTests ........................................................ 4.3.1 Test Equipment .................................................... 4.3.2 Power-On Self-Test (POST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.3 Frequency Accuracy Test ............................................ 4.3.4 Synthesis Test ..................................................... 4.3.5 High-Level Accuracy Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.6 Mid-Level Accuracy Test ............................................. 4.3.7 Low-Level Accuracy Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.8 Alternate-Level Accuracy Test ......................................... 4.3.9 Output Leakage Test ................................................ 4.3.1 0 Harmonic, Spurious, and Subharmonic Test ............................. 4.3.1 1 Modulation Tests ................................................... 4.3.12 VSWRTests ....................................................... 4.3.1 3 Pulse Tests ....................................................... 5 3-7 3-8 3-9 3-10 3-10 3-10 3-11 3-11 3-12 3-14 3-14 3-22 3-23 3-27 3-28 4-1 4-1 4-2 4-3 4-3 4-5 4-6 4-13 4-24 4-24 4-24 4-25 4-26 4-27 4-30 4-31 4-33 4-37 4-39 4-41 4-48 4-50 Maintenance 5.1 General ................................................................. 5.1.1 Cleaning .......................................................... 5.2 Assembly Removal Procedures .............................................. 5.2.1 Front Section ...................................................... 5.2.2 Rear Section ...................................................... 5.2.3 Synthesizer PC Assembly (A4) ........................................ 5.2.4 Output PC Assembly (A7) ............................................ 5.2.5 Attenuator Assembly (A8) ............................................ 5.2.6 VCO PC Assembly (A5) ............................................. 5.3 Repair and Replacement ................................................... 5.4 Troubleshooting ........................................................... 5.4.1 Special Functions................................................... 5-1 5-1 5-2 5-2 5-2 5-3 5-3 5-3 5-3 5-4 5-5 5-5 ... Manual No. 794842. Rev C. May 1997 111 Scans by ArtekMedia © 2007 Model 6062A Synthesized RF Signal Generator 5.4.2 UNCAL Conditions .................................................. 5.4.3 Self-Test Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4.4 Output Signal ...................................................... 5.4.5 Power Supply Voltages .............................................. 5.5 Digital and Control Troubleshooting ........................................... 5.5.1 Control Activity ..................................................... 5.5.2 Latch Control....................................................... 5.5.3 Microprocessor Kernel ............................................... 5.5.4 Power Reset ....................................................... 5.5.5 Microprocessor Inputs ............................................... 5.5.6 IEEE-488 Interrupt .................................................. 5.5.7 Microprocessor Bus ................................................. 5.5.8 Address Decoder ................................................... 5.5.9 Display and Controls ................................................ 5.6 Synthesizer Troubleshooting ................................................. 5.6.1 Reference Circuitry .................................................. 5.6.2 Main Phase Lock Loop............................................... 5.6.3 Sub-synthesizer and HET (800 MHz), 40 MHz Loop ....................... 5.6.4 FM Circuitry........................................................ 5.6.5 OutputLevel ....................................................... Output Test Point Signals ............................................ 5.6.6 5.6.7 Attenuator Level Control.............................................. 5.6.8 AttenuatorCheck ................................................... 5.6.9 Unleveled Condition ................................................. 5.7 AMTroubleshooting ........................................................ 5.7.1 IntemalIExtemal AM ....................... : ......................... ALC Loop Control Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.7.2 5.7.3 RPP Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8 Software Compensation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8.2 Software Compensation Description .................................... 5.8.3 Compensation Accuracy Notes ........................................ 5.8.4 Level Compensation Notes ........................................... 5.8.5 Local and Remote Compensation Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8.6 Initial FM Compensation Adjustments ................................... 5.8.7 Final FM Compensation Adjustments ................................... 5.8.8 Initial Output Compensation Adjustments ................................ 5.8.9 Final Output Compensation Adjustments ................................ 5.8.1 0 Initial Attenuator Compensation Adjustments ............................. 5.8.1 1 Final Attenuator Compensation Adjustments ............................. 5.8.1 2 Het Compensation Adjustment ......................................... 5.8.1 3 Local Compensation Procedures ....................................... 5.8.14 FM Compensation Procedure ......................................... 5.8.1 5 Output Compensation Procedures ...................................... 5.8.1 6 Attenuator Compensation Procedure.................................... 5.8.1 7 Remote Compensation Procedures..................................... 5.8.1 8 Remote FM Compensation ........................................... 5.8.1 9 Remote Level Compensation .......................................... iv Scans by ArtekMedia © 2007 Manual No. 794842. Rev C. May 1997 Model 6062A Synthesized RF Signal Generator 6 Parts Lists 6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6062A RF SIGNAL GENERATOR ............................................ 6604200100 6062A CAB1NETlZlNG ASSY ..................................... 795021 PCA. DlSPLAY(A1)................................................. 797878 PCA. CONTROLLER (A2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 657833lEEE PCA(A3) ..................................................... 812446 PCA. SYNTHESIZER (A4)............................................ 797837PCA. VCO(A5) .................................................... 797860 PCA. OUTPUT CONTROL (A6) ....................................... 797845 PCA. OUTPUT (A7) ................................................. 30067 ATrENUATOR ASSY (A8) ............................................. 794982 PCA. RELAY DRIVER (A8A1)......................................... 30467 606X ATTENUATOR PCA. (A8A2) ...................................... 657825 POWER SUPPLY PCA (A9) .......................................... 6.2 List of Manufacturers....................................................... 7 Diagrams 7.1 Introduction .............................................................. SchematicSymbols ....................................................... Synthesizer Block Diagram.................................................. Output Block Diagram ...................................................... Interconnection Diagram .................................................... 6062AFinalAssyDWG#6062A .............................................. Display PC Assy (Al) PART# 795021 ......................................... Display Circuit Schematic (Al) PART# 795021 .................................. Controller PC Assy (A2) PART# 797878 ....................................... Controller Circuit Schematic (A2)PART# 797878 ................................ IEEE-488 Interface PC Assy (A3) = PART# 657833.............................. IEEE-488 Interface Circuit Schematic (A3) PART# 657833 ........................ Synthesizer PC Assy (A4) PART# 812446 ..................................... Synthesizer Circuit Schematic (A4) PART# 812446 .............................. VCO PC Assy (AS) PART# 797837 ........................................... VCO Circuit Schematic (AS) PART# 797837 .................................... Output Control PC Assy (A6) PART# 797860 ................................... Output Control Circuit Schematic (A6) PART# 797860 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output PC Assy (A7) PART# 797845 ......................................... Output Circuit Schematic (A7) PART# 797845 .................................. Relay Driver PC Assy (A8A1) PART# 794982................................... Relay Driver Circuit Schematic (A8A1) PART# 794982 ........................... 606X Attenuator PC Assy and Circuit Schematic (A8A2) .......................... Power Supply PC Assy (A9) PART# 657825 .................................... Power Supply Circuit Schematic (A9) PART# 657825 ............................ 606X Option 130 PC Assy and Circuit Schematic, DWG# 6602201100 and 660BS01100 Auxiliary Power Supply for High-Stability Reference (Option 130) PART# 731364 and Schematic DWG# 6060A-1032............................................... Medium-Stability Reference (Option 132) PART# 792747 and Schematic DWG# 6060B-1034 .............................................................. Manual No. 794842. Rev C. May 1997 Scans by ArtekMedia © 2007 v Model 6062A Synthesized RF Signal Generator A Options A.l Introduction............................................................... A.2 Option -130 High-Stability Reference........................................ A.2.1 Introduction ........................................................ A.2.2 Operation ......................................................... A.2.3 Circuit Description................................................... A.2.4 Adjustments ....................................................... A.2.5 Option -130 Parts Lists............................................... Medium-Stability Reference ..................................... A.3 Option -132 A.3.1 Introduction ........................................................ A.3.2 Operation ......................................................... A.3.3 Circuit Description................................................... A.3.4 Adjustment ........................................................ A.3.5 Option -132 Parts Lists............................................... Rear Panel RF Output & Mod Input .............................. A.4 Option -830 A.4.1 Introduction ........................................................ A.4.2 Operation ......................................................... A.4.3 Circuit Description................................................... A.4.4 Maintenance ....................................................... PartsList .......................................................... A.4.5 Rack Mount with Slides....................................... A.5 Option Y6001 Rack Mount without Slides .................................... A.6 Option Y6002 A.7 OptionA011 -Carlyingcase ............................................... - - - - - A-1 A-2 A-2 A-2 A-2 A-2 A4 A-6 A-6 A-6 A-6 A-6 A-7 A-8 A-8 A-8 A-8 A-8 A-8 A-9 A-9 A-9 Index ........................................................................ Index-1 Scans by ArtekMedia © 2007 Model 60624 Synthesized RF Signal Generator List of Figures . Figure 2-1 Figure 2-2 Figure 2-3 Figure 2-4 Figure 2-5 Figure 2-6 Figure 3-1 Figure 3-2 Figure 3-3 Figure 4-1 Figure 4-2 Figure 4-3 Figure 4-4 Figure 4-5 Figure 4-6 Figure 4-7 Figure 4-8 Figure 4-9 Figure 4-1 0 Figure 4-1 1 Figure 4-12 Figure 4-13 Figure 4-14 Figure 4-15 Figure 4-16 Figure 4-17 Figure 4-18 Figure 4-19 Figure 4-20 Figure 4-21 Figure 4-22 Figure 4-23 Figure 4-24 Figure 4-25 Figure 4-26 Figure 4-27 Figure 4-28 Figure 4-29 Figure 4-30 Figure 4-31 Figure 4-32 Figure 5-1 Figure 5-2 Figure 5-3 Figure 5-4 Figure 5-5 Manual No. 794842. Rev C. May 1997 The Rear Panel ............................................ Power Line Connection ...................................... Voltage Selection and Fuse Requirements..................... VDE Voltage Selector & Fuse Holder ......................... Front Panel Controls & Connectors ........................... Learn String Example ....................................... Triple-Modulus Prescaler Operation ........................... N-Divider Operation ......................................... N-Divider Timing Diagram ................................... Power Supply Test Points ................................. External Modulation Level Adjustment ........................ Module Plate. Top View ..................................... 10 MHz Reference Frequency Adjustment .................... FMAdjustments ............................................ Notch Filter Adjustments .................................... VCO Voltage-Clamp & 800 MHz Oscillator ..................... External Modulation Level Adjustment ........................ 10 MHz Lock-Range Centering Adjustment .................... Module Plate. Bottom View .................................. Level DAC Offset Adjustment ................................ AM DAC Offset Adjustment .................................. Modulation Oscillator Level Adjustment ....................... External PM Deviation Adjustment ............................ Internal PM Deviation Adjustment ............................ Detector Offset Adjustment .................................. AM Depth Adjustment ....................................... RF Level Adjustment ........................................ Het Level Adjustment ....................................... Frequency Accuracy Test .................................... Synthesis Test Setup ....................................... High-Level Accuracy Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mid-Level Accuracy Test Setup .............................. Low-Level Accuracy Test Setup .............................. Alternate-Level Accuracy Equipment Setup . . . . . . . . . . . . . . . . . . . . Low-Level Setup Above 1300 MHz (a) ........................ Low-Level Setup Above 1300 MHz (b) ........................ Two-Turn Loop ............................................. Output Leakage Test ........................................ AM Tests Setup ........................................... FM Tests Setup ............................................ VSWR Tests ............................................... Self-Test Error Code Display ................................. Compensation Memory Status Display ........................ Sample FM Compensation Display ............................ Sample Output Compensation Display ........................ Sample Attenuator Compensation Display ..................... Scans by ArtekMedia © 2007 vii About This Manual This Operation and Maintenance Manual covers all aspects of the Giga-tronics Model 6062A Synthesized RF Signal Generator. The information required to operate, calibrate and maintain the instrument is provided. Preface: In addition to a comprehensive Table of Contents and general information about the manual, the Preface also contains a record of changes made to the manual since its publication, and a description of Special Configurations. If you have ordered a user-specific manual, please refer to page xv for a description of the special configuration. Chapter 1 - Introduction: This chapter contains a brief introduction to the instrument as well as the instrument's performance parameters. Chapter 2 - Operation: A user's guide to the instrument and its controls. Chapter 3 - Theory Of Operation: A description of the instrument's design and internal functioning, to the block diagram level. Chapter 4 - Calibration And Testing: Procedures for inspection, calibration and performance testing. Chapter 5 - Maintenance: Procedures for maintenance and troubleshooting. Chapter 6 - Parts Lists: Parts lists for all circuit boards and other assemblies. Chapter 7 - Diagrams: Component diagrams and schematic diagrams for all circuit boards and other assemblies. Appendix A - Options: Descriptions of the available options for this instrument. Changes that occur after publication of the manual, and special configuration data will be inserted as loose pages in the manual binder. Please insert and/or replace the indicated pages as detailed in the Technical Publication Change Instructions included with new and replacement pages. 1 Manual No. 794842, Rev C, May 1997 Scans by ArtekMedia © 2007 Model 6062A Synthesized RF Signal Generator Scans by ArtekMedia © 2007 Manual No. 794842, Rev C, May 1997 Conventions The following conventions are used in this product manual. Additional conventions not included here will be defined at the time of usage. Warning The WARNING statement is enclosed in double lines and centered in the page. This calls attention to a situation, o r a n operating o r maintenance procedure, or practice, which if not strictly corrected o r observed, could result in injury o r death of personnel. An example is the proximity of high voltage. Caution The CAUTION statement is enclosed within a single heavy line and centered in the page. This calls attention to a situation, or a n operating or maintenance procedure, or practice, which if not strictly corrected or observed, could result in temporary or permanent damage to the equipment, or loss of effectiveness. Notes 1 (* NOTE: A NOTE highlights or amplifies an essential operating or maintenance procedure, practice, condition or statement. Manual No. 794842, Rev C , May 1997 Scans by ArtekMedia © 2007 Model 6062A Synthesized RF Signal Generator SYMBOLS Block diagram symbols frequently used in the manual are illustrated below. @+& &+k+~~b m MOD Pulse Modulator YIG-Tuned Oscillator Mixer J$L Switch Step Attenuator PIN-Diode Leveler +$+ Coupler Fixed Reference Oscillator Filter Voltage Controlled Oscillator Phase Lock Loop Frequency Divider Isolator Amplifier I I xii Digital t o Analog Converter RF Level Detector Step-Recovery Diode Multiplier Digital Data Scans by ArtekMedia © 2007 Manual No. 794842, Rev C, May 1997 Record of Manual Changes This table is provided for your convenience to maintain a permanent record of manual change data. Corrected replacement pages will be issued as Technical Publication Change Instructions, and will be inserted at the front of the binder. Remove the corresponding old pages, insert the new pages, and record the changes here. Change Instruction Number Change Instruction Date Date Entered Comments L - p p p p - Manual No. 794842, Rev C, May 1997 Scans by ArtekMedia © 2007 ... xlll Model 6062A Sunthesized RF Simal Generator xiv Scans by ArtekMedia © 2007 Manual No. 794842, Rev C, May 1997 Special Configurations When the accompanying product has been configured for user-specific application(s), supplemental pages will be inserted at the front of the manual binder. When applicable, remove this page and replace it with the furnished Special Configuration supplemental page(s). Manual No. 794842, Rev C. May 1997 Scans by ArtekMedia © 2007 xv Model 6062A Synthesized RF Signal Generator xvi Scans by ArtekMedia © 2007 Manual No. 794842, Rev C, May 1997 Introduction 1.I Product Description The 6062A Synthesized RF Signal Generator is designed for applications that require full programmability, good modulation, frequency accuracy, and output level performance with moderate spectral purity. It is well suited for testing a wide variety of RF components and systems including filters, amplifiers, mixers, and radios, particularly on-channel radio testing. 1.1.1 Features 0.10 to 1050 MHz frequency range in 10 Hz steps 1050 to 2100 MHz frequency range in 20 Hz steps +16 to -137 dBm signal level in 0.1 dB steps from 0.10 to 1050 MHz +13 to -137 dBm signal level in 0.1 dB steps from 1050 to 2100 MHz AM, FM, OM, and PM, internal or external Internal 400 Hz and 1000 Hz modulation oscillator Relative frequency and amplitude VoltsIdBm conversion Storelrecall memory Instrument (or controller) prompted software compensation Masterlslave for frequency, amplitude, and modulation functions (IEEE-488 Interface controlled) Fluorescent display 5.25 inches high, rack mountable The values of modulation, frequency, and amplitude are shown in the three displays across the front panel. When you press the STATUS key, UNCAL and REJECT ENTRY codes are displayed. The display also prompts you during the software compensation procedures. The internal microprocessor controls all operator interface functions, performs background operations (such as status checks), and updates (strobes) the front panel displays. Whether you are using local control from the front panel or remote control over the IEEE-488 Interface, the microprocessor provides self-test and diagnostic capabilities. Economical instrument performance is achieved with software compensation and accuracy-enhancement circuitry (available as factory-prepared procedures). The frequency range is 0.10 to 2100 MHz. The frequency is synthesized from a 10 MHz reference, which provides an output resolution of 10 Hz from 0.10 to 1050 MHz, and 20 Hz from 1050 to 2100 MHz. The relative frequency mode allows you to program the frequency in relation to a center or offset frequency. Manual No. 794842, Rev C , May 1997 Scans by ArtekMedia © 2007 1-1 Model 6062A Synthesized RF Signal Generator This is convenient for testing filters and mixers. The output frequency stability and accuracy depends on the reference, and whether that reference is internal or external. The internal reference frequency is a 10 MHz ambient crystal oscillator. If Option 130 (High Stability Reference) or Option 132 (Medium-Stability Reference) is installed, the oscillator is locked to the internal crystal oscillator. With the rear panel REF INTEXT switch set to INT, the output frequency is synthesized from the internal 10 MHz crystal oscillator reference, and the internal oscillator (timebase) signal is available at the 10 MHz OUT connector. The generator can be operated from an external 10 MHz timebase by setting the rear panel REF INTEXT switch to EXT and applying a timebase signal to the REF IN connector. With the REF INTEXT switch set to EXT, the Generator can be operated from an external 1, 2, 2.5, 5, or 10 MHz, 0.3 to 4 Vpp sine or square wave reference applied to the REF IN connector. In either position of the INTIEXT switch, the selected reference is available as a 10 MHz signal at the rear panel 10 MHz OUT connector. The generator has two amplitude level ranges: +16 to -137 dBm (1.41 V to 0.032 pV) over a frequency range of 0.10 to 1050 MHz. +13 to -137 dBm ( I V to 0.032 pV) over a frequency range of 1050 to 2100 MHz. The programming limits are +17 and -147.4 dBm, which correspond to limits of 1.58 V to 95 nV (0.01 pV) respectively. The level entry can be in dBm or volts, or it can be converted from one to the other. The relative amplitude mode accounts for cascaded gain or loss, or displays the level (in dB) relative to 1 pV or 1 mV. The 6062A has internal and external amplitude, frequency, phase, and pulse modulation capabilities. The internal modulation oscillator is selectable between 400 and 1000 Hz. AM depths of 0 to 99% are available in 1% steps. FM deviation ranges of 1, 10, 100, and 400 kHz are available in steps of 1, 10, 100, and 1000 Hz respectively. Phase modulation deviation ranges of 0.10, 1.0, 10.0, and 40.0 radians (rad) are available in steps of 0.001, 0.01, 0.1, and 1 radian, respectively. The internal pulse duty cycle is approximately 50%. External pulse allows rates from dc up to 16 MHz, and duty cycles from 0 to 100%. 1.1.2 Required Equipment An IEEE-488 interface cable is needed for remote control operation. Appropriate RF output cabling to fit the female type SMA output connector can be ordered from Giga-tronics as Accessory Cable Kit A001. 1.1.3 Tools and Test Equipment No special tools are required to operate the generator. Test equipment required for calibration and performance verification is described in Chapter 4. 1.1.4 Cooling A cooling fan is installed in the instrument. The cooling air intake and exhaust are located on the rear panel. Care must be taken to avoid obstructing the flow of air into and out of the instrument. 1.1.5 Cleaning The air inlet screen should be cleaned whenever a significant amount of dirt or dust has accumulated. Whenever the covers are removed, the interior should be blown out with dry air at a low velocity. 1.1.6 Mnemonics The mnemonics used on the schematics, block diagrams, wiring diagrams, truth tables, and in the text, are listed at the beginning of Chapter 7. - - 1-2 - - - - - - - - Scans by ArtekMedia © 2007 - - - Manual No. 794842, Rev C, May 1997 1.I .7 Options Options available for the 6062A are detailed in Appendix A. 1.I .8 Accessories Included The following accessories are included with the 6062A: Description Part Number Q~Y Operator Information card' Instruction Manual Line Power Cord BNC Dust Cap 797928 794842 284 174 478982 1 1 1 2 I The Operator Information Card card presents useful information, such as error codes and special function codes. It has an adhesive backing so that it can be affixed to the top of the generator or to the remote operator console. 1.I .9 Accessories Available The following accessories are available for the 6062A: Description Accessory No. Rack Mount Kit (Includes 5.25-inch rack mount ears and 24-inch rack slides.) Rack Mount Kit wlo slides IEEE-488 Shielded Cable 1 meter IEEE-488 Shielded Cable 2 meters IEEE-488 Shielded Cable 4 meters Attenuator 50 R, 6 dB, BNC Attenuator 50 R, 14 dB, BNC Attenuator 50 R, 20 dB, BNC 50 R Feed-through Termination, BNC Coaxial Cqble 50 R, 3 feet, BNC (m) both ends Coaxial Cable 50 R 6 feet BNC, (m) both ends Min-Loss Pad 50 to 75 R Adapter N to BNC 75 R Adapter N to BNC 5 0