Giga-tronics 6062A Manual

Manual Number: 794842
Revision:
C
Print Date: May 1997
Operation & Maintenance Manual
Model 6062A
Synthesized RF 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 [phone], or [phone] 9 FAX [phone]
Repair Service [phone] 4 Repair Service FAX [phone]
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Information and specifications contained in this manual are subject to change without notice and do
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. Primary Contact Secondary Contact
Customer Servige:
USA & Canada
Pacific Rim
& Far East [phone] [phone]
[phone] [phone]
Europe & South Africa [phone] [phone]
(510 328-4646 [phone]
Applications and AII Territories
Technical Support:
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Table of Contents
AboutThisManual .............................................. ix
Conventions
.................................................... xi
Record of Manual Changes
....................................... xiii
Special Configurations ........................................... xv
1 Introduction
1.1 ProductDescription ....................................................... 1-1
1.1.1 Features
..................................................... 1-1
1.1.2 Required Equipment
................................................ 1-2
1.1.3 Tools and Test Equipment
........................................... 1-2
1.1.4 Cooling
....................................................... 1-2
1.1.5 Cleaning
........................................................ 1-2
1.1.6 Mnemonics
....................................................... 1-2
1.1.7 Options
.......................................................... 1-3
1.1.8 Accessories Included ............................................... 1-3
1.1.9 AccessoriesAvailable
............................................... 1-3
1.1.1
0 Receiving Inspection ................................................ 1-3
1.1.11 Preparationfor Reshipment
........................................... 14
1.2 PerformanceSpecifications
................................................. 1-5
1.2.1 Frequency
........................................................ 1-5
1.2.2 Amplitude
........................................................ 1-5
1.2.3 Spectral Purity (CW Only)
........................................... 1-6
1.2.4 Amplitude Modulation
............................................... 1-6
1.2.5 Frequency Modulation
............................................. 1-7
1.2.6 Phase Modulation (QM)
............................................ 1-7
1.2.7 Pulse Modulation
................................................. 1-8
1.2.8 ModulationSource
................................................. 1-8
1.2.9 Non-Volatile Memory
............................................... 1-8
............................................ 1.2.10 Reverse Power Protection 1-8
4
1.3 General Specifications ..................................................... 1-9
1.4 SupplementalCharacteristics
............................................... 1-10
2 Operation
2.1 Installation ............................................................... 2-1
2.1.1 Mountingthe Generator
.............................................. 2-1
2.1.2 Rear Panel Description
.............................................. 2-2
2.1.3 Power and Fuse Requirements
........................................ 2-3
2.1.4 Voltage and FuseSelection
.......................................... 24
2.1.5 VDE Type Voltage and Fuse Holder
.................................... 2-5
2.2 Operation
................................................................ 2-6
2.3 LocalControl
............................................................ 2-11
2.3.1 Function-Data-UnitsEntry
............................................ 2-11
2.3.2 EditEntry
......................................................... 2-12
2.3.3 Step Entry
........................................................ 2-12
2.3.4 Status and Clear Entries
............................................. 2-12
2.3.5 RF Output
......................................................... 2-13
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Model 6062A Synthesized RF Signal Generator
2.3.6 Modulationand Rate ................................................ 2-13
2.3.7 Memory
........................................................... 2-13
2.3.8 Software Compensation Procedures
.................................... 2-13
2.3.9 Special Functions
................................................... 2-14
2.4 RemoteOperation
......................................................... 2-17
2.4.1 Remote-Control
.................................................... 2-17
2.4.2 Setting Up the IEEE-488 Interface
...................................... 2-17
2.4.3 Programming Commands
............................................. 2-18
2.4.4 Programming Examples
.............................................. 2-25
2.4.5 IEEE-488 InterfaceFunctions
......................................... 2-28
2.4.6 Address Mode
...................................................... 2-29
2.4.7 Talk-Only Mode
..................................................... 2-31
2.4.8 Listen-Only Mode
................................................... 2-31
2.4.9 Command Syntax
................................................... 2-32
2.4.10 Command Descriptions
.............................................. 2-35
2.4.1 1 Command Processing
............................................... 2-52
2.4.12 Timing Data
........................................................ 2-53
2.4.1 3 Power-onConditions
................................................ 2-55
2.5 OperatingReference
....................................................... 2-56
2.5.1 Amplitude and Frequency Entry
........................................ 2-56
2.5.2 Amplitude Fixed Range
.............................................. 2-58
2.5.3 Amplitude Units Conversion
........................................... 2-59
2.5.4 Amplitude Units Selection
............................................ 2-60
2.5.5 Cursor Edit Entry
................................................... 2-61
2.5.6 Memory Entry
...................................................... 2-63
2.5.7 ModulationEntry
.................................................... 2-64
2.5.8 Relative Function
................................................... 2-66
2.5.9 RF OutputOnIOff Entry
.............................................. 2-67
2.5.1 0 Special FunctionEntry
............................................... 2-68
2.5.1 1 Status
8. Clear Entry ................................................. 2-69
2.5.12 Step Entry
......................................................... 2-71
3 Theory of Operation
3.1 Introduction ............................................................... 3-1
3.1.1 Front Panel Section
................................................. 3-1
, 3.1.2 Module Section ..................................................... 3-1
3.1.3 Rear Panel Section
.................................................. 3-2
3.2 FunctionalDescription
...................................................... 3-3
3.2.1 Level
............................................................. 3-3
3.2.2 Amplitude Modulation
................................................ 3-3
3.2.3 PulseModulation
................................................... 3-4
3.2.4 Frequency
......................................................... 3-4
3.2.5 Frequency Modulation
............................................... 3-4
3.2.6 Phase Modulation
.................................................. 3-4
3.3 SoftwareOperation
........................................................ 3-5
3.3.1 User Interface
...................................................... 3-5
3.3.2 Amplitude Control
................................................... 3-5
3.3.3 Attenuators
........................................................ 3-5
3.3.4 Level DAC
......................................................... 3-6
3.3.5 Temperature Compensation
........................................... 3-6
3.3.6 Reverse Power Protector
............................................. 3-6
3.3.7 Frequency Reference Control
......................................... 3-6
3.3.8 Frequency Control
.................................................. 3-6
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Model 6062A Synthesized RF Signal Generator
3.3.9 Modulation Modes .................................................. 3-7
3.3.10 Compensation Memory
.............................................. 3-8
3.3.1 1 Power-On Self-Test (POST)
.......................................... 3-9
3.3.12 Special Functions
................................................... 3-10
3.3.13 Software Compensation Procedures
.................................... 3-10
3.3.14 Status Signals
..................................................... 3-10
3.4 DetailedCircuit Descriptions
................................................. 3-11
3.4.1 Display PC Assembly (Al)
........................................... 3-11
3.4.2 Controller PC Assembly
(A2) ......................................... 3-12
3.4.3 IEEE-488 InterfaceAssembly (A3)
..................................... 3-14
3.4.4 SynthesizerPC Assembly (A4)
........................................ 3-14
3.4.5 VCO PC Assembly (A5)
............................................. 3-22
3.4.6 Output PC Assembly (A6 and A7)
..................................... 3-23
3.4.7 Attenuator PC Assembly (A8)
......................................... 3-27
3.4.8 Power Supply Assembly (A9) ......................................... 3-28
4 Calibration & Testing
4.1 Introduction .............................................................. 4-1
4.1.1 Safety
............................................................ 4-1
4.1.2 Recommend Test Equipment
......................................... 4-2
4.2 CalibrationProcedures
..................................................... 4-3
4.2.1 Power Supply Adjustment
............................................ 4-3
4.2.2 Extemal Modulation Level IndicatorAdjustment
.......................... 4-5
4.2.3 Synthesizer PC Assembly
............................................ 4-6
4.2.4 Output Assembly Adjustment
......................................... 4-13
4.3 PerformanceTests
........................................................ 4-24
4.3.1 Test Equipment
.................................................... 4-24
4.3.2 Power-On Self-Test (POST)
.......................................... 4-24
4.3.3 FrequencyAccuracy Test
............................................ 4-25
4.3.4 SynthesisTest
..................................................... 4-26
4.3.5 High-LevelAccuracy Test
............................................ 4-27
4.3.6 Mid-LevelAccuracy Test
............................................. 4-30
............................................. 4.3.7 Low-LevelAccuracy Test 4-31
4.3.8 Alternate-Level Accuracy Test ......................................... 4-33
4.3.9 Output Leakage Test
................................................ 4-37
4.3.1 0 Harmonic, Spurious, and Subharmonic Test
............................. 4-39
4.3.1 1 Modulation Tests
................................................... 4-41
4.3.12 VSWRTests
....................................................... 4-48
4.3.1 3 Pulse Tests
....................................................... 4-50
5 Maintenance
.................................................................
5.1 General 5-1
5.1.1 Cleaning
.......................................................... 5-1
5.2 Assembly Removal Procedures
.............................................. 5-2
5.2.1 Front Section
...................................................... 5-2
5.2.2 Rear Section
...................................................... 5-2
5.2.3 Synthesizer PC Assembly (A4)
........................................ 5-3
5.2.4 Output PC Assembly (A7)
............................................ 5-3
5.2.5 Attenuator Assembly (A8)
............................................ 5-3
5.2.6 VCO PC Assembly
(A5) ............................................. 5-3
5.3 Repair and Replacement
................................................... 5-4
........................................................... 5.4 Troubleshooting 5-5
...................................................
5.4.1 Special Functions 5-5
...
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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 Digitaland Control Troubleshooting ...........................................
.....................................................
5.5.1 Control Activity
5.5.2 LatchControl
.......................................................
5.5.3 MicroprocessorKernel ...............................................
5.5.4 Power Reset .......................................................
5.5.5 MicroprocessorInputs ...............................................
..................................................
5.5.6 IEEE-488Interrupt
5.5.7 MicroprocessorBus
.................................................
................................................... 5.5.8 Address Decoder
................................................ 5.5.9 Displayand Controls
5.6 Synthesizer Troubleshooting
.................................................
5.6.1 ReferenceCircuitry ..................................................
5.6.2 Main Phase Lock Loop ...............................................
5.6.3 Sub-synthesizerand HET (800 MHz), 40 MHz Loop .......................
........................................................ 5.6.4 FM Circuitry
.......................................................
5.6.5 OutputLevel
5.6.6 Output Test Point Signals
............................................
5.6.7 Attenuator Level Control ..............................................
...................................................
5.6.8 AttenuatorCheck
5.6.9 UnleveledCondition .................................................
5.7 AMTroubleshooting ........................................................
......................... 5.7.1 IntemalIExtemal AM ....................... :
5.7.2 ALC Loop Control Voltage
............................................
5.7.3 RPP Control .......................................................
5.8 Software Compensation Procedures ...........................................
5.8.1 Introduction ........................................................
5.8.2 Software CompensationDescription ....................................
5.8.3 CompensationAccuracy Notes ........................................
5.8.4 Level CompensationNotes ...........................................
5.8.5 Localand Remote Compensation Adjustments ...........................
5.8.6 Initial FM CompensationAdjustments ...................................
5.8.7 FinalFM CompensationAdjustments ...................................
5.8.8 Initial Output CompensationAdjustments ................................
5.8.9 FinalOutput Compensation Adjustments ................................
5.8.1 0 InitialAttenuator CompensationAdjustments .............................
5.8.1 1 FinalAttenuator Compensation Adjustments .............................
5.8.1 2 Het CompensationAdjustment .........................................
5.8.1 3 Local CompensationProcedures .......................................
5.8.14 FM CompensationProcedure .........................................
5.8.1 5 Output Compensation Procedures ......................................
5.8.16 Attenuator Compensation Procedure ....................................
5.8.17 RemoteCompensationProcedures .....................................
5.8.1 8 Remote FM Compensation ...........................................
..........................................
5.8.1 9 Remote Level Compensation
iv
ManualNo . 794842. Rev C. May 1997
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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)
30067ATrENUATOR 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
.................................................... InterconnectionDiagram
6062AFinalAssyDWG#6062A ..............................................
Display PC Assy (Al) PART# 795021 .........................................
Display Circuit Schematic (Al) PART# 795021 ..................................
Controller PC Assy (A2) PART# 797878 .......................................
................................ Controller CircuitSchematic (A2) PART#797878
IEEE-488 InterfacePC Assy (A3)
= PART#657833 ..............................
IEEE-488 InterfaceCircuit 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 ControlCircuit 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# 6602201100and 660BS01100
Auxiliary Power Supply for High-StabilityReference (Option 130) PART# 731364 and
Schematic DWG# 6060A-1032
...............................................
Medium-Stability Reference (Option 132) PART# 792747 and Schematic DWG#
6060B-10 34 ..............................................................
ManualNo . 794842. RevC. May 1997 v
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Model 6062A Synthesized RF Signal Generator
A Options
A.l Introduction ............................................................... A-1
A.2 Option-130 - High-Stability Reference ........................................ A-2
A.2.1 Introduction
........................................................ A-2
A.2.2 Operation
......................................................... A-2
A.2.3 Circuit Description
................................................... A-2
A.2.4 Adjustments
....................................................... A-2
A.2.5 Option-1
30 Parts Lists ............................................... A4
A.3 Option-1
32 - Medium-Stability Reference ..................................... A-6
A.3.1 Introduction
........................................................ A-6
A.3.2 Operation
......................................................... A-6
A.3.3 Circuit Description
................................................... A-6
A.3.4 Adjustment
........................................................ A-6
A.3.5 Option -132 Parts Lists
............................................... A-7
A.4 Option -830
- Rear PanelRF Output & Mod Input .............................. A-8
A.4.1 Introduction
........................................................ A-8
A.4.2 Operation
......................................................... A-8
A.4.3 Circuit Description
................................................... A-8
A.4.4 Maintenance
....................................................... A-8
A.4.5 PartsList
.......................................................... A-8
A.5 Option Y6001
- Rack Mount with Slides ....................................... A-9
A.6 OptionY6002
- Rack Mount without Slides .................................... A-9
A.7 OptionA011-Carlyingcase
............................................... A-9
Index
........................................................................ Index-1
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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 4-10
Figure 4-11
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
............................................ 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 .....................
ManualNo . 794842. Rev C. May 1997
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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
1
pages.
Manual No. 794842, Rev C, May 1997
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Model 6062A Synthesized RF Signal Generator
Manual No. 794842, Rev C, May 1997
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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, or an operating or
maintenance procedure, orpractice, which if not strictly corrected or
observed, could result in injury or death of personnel. An example is
the proximity of high voltage.
Caution
The CAUTION statement is enclosed within a single heavy line and
centered inthepage. This callsattention to a situation, oranoperating
ormaintenance 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
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Model 6062A Synthesized RF Signal Generator
SYMBOLS
Block diagram symbols frequently used in the manual are illustrated below.
@+& MOD
& +k+ ~~b J$L
Pulse YIG-Tuned Mixer Switch Step PIN-Diode
m
Modulator Oscillator Attenuator Leveler
I
Digital to
Analog
Converter
I
RF Level
Detector
+$+ Coupler Fixed
Reference
Oscillator
Filter Voltage
Controlled
Oscillator
Step-Recovery Digital Phase Lock Frequency Isolator Amplifier
Diode Multiplier Data Loop Divider
xii
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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.
...
Manual No. 794842, Rev C, May 1997
xlll
Change Instruction
Number
L
Change Instruction
Date Date Entered
----
pppp
----
Comments
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Model 6062A Sunthesized RF Simal Generator
xiv
Manual No. 794842, Rev C, May 1997
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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).
xv
Manual No. 794842, Rev C. May 1997
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Model 6062A Synthesized RF Signal Generator
xvi Manual No. 794842, Rev C, May 1997
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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 10MHz reference, which
provides an output resolution of 10Hz from 0.10 to 1050 MHz, and 20 Hz from 1050to 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 1-1
Scans by ArtekMedia © 2007

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 10MHz crystal oscillator reference, and the internal oscillator (timebase)
signal is available at the 10MHz OUT connector.
The generator can be operated from an external 10MHz 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 10MHz, 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 10MHz 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 1050MHz.
+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 andTest 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.
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Manual No. 794842, Rev C, May 1997
Scans by ArtekMedia © 2007