Giga-tronics GT 9000 Manuals

Manuals and User Guides for Giga-tronics GT 9000. We have 1 Giga-tronics GT 9000 manual available for free PDF download: Operation & Maintenance Manual

Giga-tronics GT 9000 Operation & Maintenance Manual

Giga-tronics GT 9000 Operation & Maintenance Manual (238 pages)

Synthesized Microwave Signal Generator

Brand: Giga-tronics | Category: Synthesizer | Size: 2 MB

Table of Contents

Table of Contents
3
About this Manual
13
Introduction
13
Index
13
Conventions
15
Record of Manual Changes
17
Special Configurations
19
Introduction

21
- General Information
  21
  - Items Furnished
    22
  - Items Required
    22
  - Tools and Test Equipment
    22
  - Cooling
    22
  - Cleaning
    22
  - Installation and Preparation for Use
    22
  - Receiving Inspection
    22
  - Preparation for Reshipment
    23
- List of Figures ________________________________________________________
  
  24
- Safety Precautions
  24
- Performance Specifications
  26
Operation

33
- Introduction
  33
- The Front Panel
  33
- Figure 2-1 Front Panel Layout
  33
- Entry Menu
  34
- Figure 2-2 Entry Menu Display
  34
- Data Entry Field
  35
- Figure 2-3 Data Entry Field
  35
List of Tables _________________________________________________________

37
- Shifted Functions
  37
- Figure 2-4 Shifted Functions
  37
- Table 2-1 Parameter Default Conditions
  37
- Frequency
  40
- Figure 2-5 CW Frequencies
  40
- RF Level
  41
- Figure 2-6 RF Level
  41
- Pulse Modulation
  42
- Figure 2-7 Pulse Modulation
  42
- Frequency Modulation
  44
- Figure 2-8 Frequency Modulation
  44
- Amplitude Modulation
  46
- Figure 2-9 Amplitude Modulation
  46
- The Rear Panel
  48
  - Bncs
    48
  - Figure 2-10 the Rear Panel
    48
  - Line Power and Fuse
    49
  - IEEE-488 Interface
    49
  - Table 2-2 IEEE-488 Interface Subsets
    49
  - Table 2-3 Interface Connector Pin Assignments
    49
- GT 9000 Syntax
  51
- 1026 Syntax Interface
  57
  - Character Representation
    57
  - Command Format
    57
  - Table 2-6 Character Representations
    57
  - Table 2-7 Command Format Translation
    57
  - Commands
    58
  - Table 2-8 1026 Syntax Commands
    58
Theory of Operation

59
- Introduction
  59
- General Circuit Theory
  59
  - Figure 3-1 Internal Chassis Layout
    59
  - Figure 3-2 the Computer
    60
  - The Computer
    60
  - Figure 3-3 Phase Lock Loop Circuit
    61
  - Phase Lock Loops
    61
  - The RF Path
    61
  - Figure 3-4 Phase Lock Loop Circuit, with Prescaler
    62
  - Dual-Loop Indirect Synthesis
    63
  - Figure 3-5 the Output Loop
    63
  - The Output Loop
    64
  - Figure 3-6 the Reference Loop
    66
  - The Reference Loop
    66
  - Table 3-1 Output & Reference Frequencies (in Mhz)
    68
  - Table 3-2 Output and Ref. Frequencies to 26.5 Ghz
    69
  - Figure 3-7 Downconverter Module
    70
  - The Downconverter
    70
  - Figure 3-8 Downconverter Phase Lock Loop
    72
  - Figure 3-9 Automatic Level Control & am
    73
  - Level Control
    73
  - Amplitude Modulation
    75
  - Figure 3-10 Frequency Modulation
    75
  - Frequency Modulation
    75
  - Pulse Modulation
    75
- Assembly Circuit Descriptions
  76
  - Front Panel Interface - PC Assembly A1
    76
  - IEEE / TIMER - PC Assembly A2
    76
  - Memory - PC Assembly A3
    77
  - CPU - PC Assembly A4
    78
  - Pulse Driver - PC Assembly A5
    78
  - Pulse Generator - PC Assembly A5A1
    79
  - AM/FM Driver - PC Assembly A6
    79
  - Function Generator - PC Assembly A6A1
    80
  - Scan Modulation - PC Assembly A7
    80
  - Level - PC Assembly A10
    81
  - Level Driver - PC Assembly A10A1
    82
  - Power Supply - PC Assembly A11
    83
  - 100 Mhz Reference PLL - PC Assembly A14
    84
  - Hz PLL - PC Assembly A15
    85
  - Reference / Downconverter PLL - PC Assembly A16
    86
  - Divide-By-N - PC Assembly A17
    88
  - Output PLL - PC Assembly A18
    90
  - YIG Driver - PC Assembly A19
    91
  - Display Driver - PC Assembly A20
    91
    
    Pushbutton — PC Assembly A105
    91
    
    Data Entry — PC Assembly A106
    92
    
    Detector Buffer — PC Assembly A200
    92
    
    Main Tune — PC Assembly A107
    92
    
    Mhz Oscillator/Sampler Driver — PC Assembly A201
    93
  - Calibration Procedures
    95
    
    Recommended Equipment:
    95
    
    Power Supply Calibration
    96
    
    Table 4-1 Power Supply Test Points
    96
    
    Mhz Phase Lock Loop
    97
    
    Sampler Drivers, 100 Mhz VCO (Optional)
    97
    
    Table 4-2 YIG Reference Frequency
    98
    
    Table 4-3 YIG Output Frequency
    98
    
    YIG Driver Calibration
    98
    
    Level Calibration
    99
    
    Table 4-4 Level Calibration Pot Adjustments
    99
    
    AM/FM Generator Verification (Option 24 Only)
    100
    
    Pulse Generator Verification
    101
    
    AM Calibration
    102
    
    FM Calibration
    103
    
    Table 4-5 FM External Frequency Adjustment
    103
    
    Mhz Time Base
    104
    
    Spectral Purity
    104
  - Performance Tests
    105
    
    Calibration Cycle
    105
    
    Equipment Required
    105
    
    Test Data Sheet
    105
    
    Warm-Up
    105
    
    Figure 4-1 Frequency Range, Resolution, Accuracy
    106
    
    Frequency Range, Resolution and Accuracy
    106
    
    Figure 4-2 Spurious Signals Test
    108
    
    Spurious Signals Tests
    108
    
    Figure 4-3 Single-Sideband Phase Noise
    110
    
    Figure 4-4 RF Output Power Tests
    111
    
    Figure 4-5 Pulse Modulation On/Off Ratio Test
    113
    
    Figure 4-6 Pulse Modulation Rise/Fall Time Test
    114
    
    Pulse Modulation Rise and Fall Time Test
    114
    
    Figure 4-7 PM Overshoot & Settling Time
    115
    
    Pulse Modulation Overshoot and Settling Time
    115
    
    Figure 4-8 Pulse Modulation Accuracy Test
    117
    
    Figure 4-9 Internal Pulse Generator Tests
    118
    
    Figure 4-10 Frequency Modulation Test
    119
    
    Frequency Modulation Tests
    119
    
    Figure 4-11 Internal Modulation Generator Tests
    121
    
    Introduction
    127
  - Malfunctions
    128
    
    General Failure
    128
    
    Incorrect Output Level
    128
    
    Loss of RF Output
    128
    
    Output Frequency Unlocked
    130
    
    IEEE-488 Interface Malfunction
    131
    
    Output Locked, but Frequency Incorrect
    131
  - Troubleshooting Notes
    132
    
    Power Supply
    132
    
    Table 5-1 Power Supplies on the A11 PC Board
    132
    
    Table 5-2 Switching Power Supply Module
    133
    
    Db Step Attenuator (Option 26)
    134
    
    The Computer
    134
    
    Microwave Module
    135
    
    Table 5-3 YIG Oscillator Tuning Coil Pins
    135
    
    YIG Oscillator
    135
    
    Detector
    136
    
    Table 5-4 Microwave Module Control Biases
    136
4 • Calibration and Testing _____________________________________________

95
5 • Maintenance ______________________________________________________

128
- Level Control Circuit
  137
- Output Phase Lock Loop
  138
- Divide-By-N
  138
- Table 5-5 Logic Level Inputs
  138
- YIG Driver
  139
- 100 Mhz Module
  139
- Table 5-6 Expected Voltages on the YIG Driver
  139
- 100 Mhz PLL
  140
- 10 Mhz Master Reference
  140
- Hz PLL
  140
- IEEE-488 Interface/Timer Circuit
  140
- Downconverter PLL
  140
- Reference Mixer
  141
- Reference PLL
  141
- Table 5-7 Expected Reference Mixer Signals
  141
6 • Parts Lists ________________________________________________________

143
- Gt9000/.01-20 Microwave Signal Generator
  143
- Introduction
  143
- Gt9000/.5-20 Microwave Signal Generator
  143
- Gt9000/2-20 Microwave Signal Generator
  144
- Gt9000/.01-26 Microwave Signal Generator
  144
- Gt9000/.5-26 Microwave Signal Generator
  144
- Gt9000/2-26 Microwave Signal Generator
  144
- Da00952 Gt9000 Chassis W/ Sw Ps
  145
- Da11052 Gt9000 R/P Asy for Sw Ps
  146
- Gt9000 Front Panel Asy
  146
- Ca16450 Gt9000/S Front Panel out
  147
- Da00750 Gt9000 Pcb Assy Set
  147
- Ba48600 Level Asy;Gt9000
  147
- Da00501 .01-26 Ghz Freq Assy
  148
- Da00500 .01-20 Ghz Freq. Assy
  148
- Da00510 .5-20 Ghz Freq. Assy
  149
- Da00511 .5-26 Ghz Freq Assy
  149
- Da00520 2-20 Ghz Freq Assy
  150
- Da00521 2-26 Ghz Freq Assy
  150
- Da46900 Gt9000 Std Microwave Dec
  151
- Ca46800 100 Mhz Mt Asy;2Samp;Gt9
  151
- Ba00001 Sampler Assembly
  151
- Ba00101 Sampler Assy Reverse Mtg
  151
- Ghz SUBASSY
  152
- Parts Lists
  153
- Ba34700 Gt9000/S .01-2 Downc Asy
  155
- Ba34600 Gt9000/S .01-2 Filter as
  155
- Ba34800 Gt9000/S .5-2 Filter Asy
  155
- Da11250 Gt9000 Bench Mt Dress
  156
- Da04550 Bottom Cover Asy
  156
- Aa14300 Accessories Asy
  156
- Ba01300 Front Panel I/F Pca (A1)
  157
- Ba05300 Ieee / Timer Pca (A2)
  158
- Ba01200 Memory Pca (A3)
  159
- Ba01100 Cpu Pca (A4)
  160
- Ba09303 Pulse Driver Pca (A5)
  161
- Ba12550 Gt9000 Pulse Generator (A5A1)
  163
- Ba09401 Am/Fm Driver Pca (A6)
  165
- Ba47500 Gt9000 Level Pca (A10)
  168
- Ba50500 Level Driver am 9000 Pca (A10A1)
  171
  - Ba04650 Power Supply Pca (A11)
    173
  - BA06951 100 Mhz PLL PCA (A14)
    174
  - Ba08800 1 Hz Pll Pca (A15)
    177
  - Ba07000 Ref/DC Pll Pca (A16)
    180
  - Ba07150 Divide by N Pca (A17)
    183
  - Ba07250 Output Pll Pca (A18)
    185
  - Ba08350 Yig Driver Pca (A19)
    188
  - Gt9000 Disp Driver Pca (A20)
    190
  - Ba39101 Hi Stab Osc Pca (A21)
    191
  - Ba01000 Computer Bus Pca (A100)
    191
  - Ba07300 I/O Buss Pca (A101)
    191
  - Ba05520 11 Digit Disply Pca Nvfd (A103)
    191
  - Ba05621 5 Digit Display Pca Nvfd (A104)
    192
  - Ba04850 Pushbutton Pca (A105)
    192
  - Ba01512 Data Entry M7100 Pca (A106)
    192
  - Ba12900 Main Tune Pca (A107)1
    193
  - Ba07900 Detector Buffer Pca (A200)
    194
  - Ca11502 100Mhz Module Asy (A201); Gt9000
    195
  - CA04203 100 Mhz MODULE PCA; GT9000
    196
  - List of Manufacturers
    199
  - Table 6-1 Manufacturer's List
    199
A• Options __________________________________________________________

207

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