sunair GSB-900 Manuals

Manuals and User Guides for sunair GSB-900. We have 1 sunair GSB-900 manual available for free PDF download: Operation And Maintenance Manual

sunair GSB-900 Operation And Maintenance Manual (219 pages)

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Brand: sunair | Category: Transceiver | Size: 6 MB

Table of Contents
3
List of Illustrations
4
List of Tables
7
General Information
11
Transceiver Description
11
Front Panel
11
Receiver/Exciter
11
Filter Module
12
Power Supply
12
RF Power Amplifier
12
Major Assembly Locations
13
Specifications
14
Equipment Supplied
15
Optional Equipment
15
Installation
25
Unpacking and Inspection
25
Reshipping
25
Base Station Installation
26
Shock Mount Assembly and Details
28
Vehicular Installations
29
Marine Installation
30
Rack Mounted Installations
30
Antennas and Ground Systems
31
Whip Antenna
31
Narrow Band 50 Ohm Antennas
32
Random Length Non Resonant Antennas
32
Doublet Antenna Diagram
32
Long Wire Antenna Diagram
33
Power Requirements
34
Broad Band 50 Ohm Antennas
34
Operation from All AC Power Sources
34
AC Operation under High Line Voltage Conditions
34
115 V AC Power Cord Schematic
35
230 V AC Power Cord Schematic
35
Operation from DC Power Source
36
Power Supply Wiring - 115V or 230V AC Inputs
37
Power Supply - 132V or 265V AC Inputs
37
DC Inverter Connections to Power Supply Terminal Strip
38
Installation Checkout
39
DC Power Connector Schematic
39
Mating Connectors to the Unit and Accessories
40
Operation
41
Front Panel Operating Controls
41
Product View
41
Rear Apron Fuses and Connectors
43
Operating the Unit into a 50 Ohm Antenna
45
Operating the Unit with the GCU-910A Antenna Coupler
47
Automatic Antenna Tuner Controls
49
KW Control Unit
50
Theory of Operation
51
Synthesizer
51
Overall Block Diagram
51
Spectrum Generator
51
Low Digit Generator
52
20 Mhz Reference Generator
52
17 Mhz Reference Generator
52
21 Mhz Reference Generator
52
Voltage Controlled Oscillator
54
Mixer and Pulse Generator
54
Preset Counter
54
Preset Generator
54
Translator
55
Output Divider Circuitry
55
Error Cancelling
55
VFO and 21 Mhz Reference Amplifiers
55
VHF Divider
56
2Nd lo Circuitry
56
100.75 Mhz Mixer
56
Output Mixer and Broadband Amplifier
56
Broadband Amplifier
57
Prescaler
57
Preset Counters
57
100 Khz Carry Generator
57
Vco
58
Phase Detector
58
Oscillators
59
Output Buffer Amplifier
59
Translator Buffer Amplifier
59
Logic Switching
59
Synthesizer Mother Board
60
Mechanical
60
LO Blanker Circuitry
60
Receiver
61
VCO Filter Assembly
61
VHF Mixer Board
62
Broadcast Filter
62
Synthesizer Block Diagram and Details
63
RF Amplifier
65
1St lo Amplifier and Balanced Mixer
65
VHF Filter and Bilateral Amplifier
65
If/Filter Board
66
2Nd lo Amplifier and Balance Mixer
66
Diode Gates and if Filters
66
Audio Board
67
Integrated Circuit if Amplifier
67
Fixed if Amplifier and AGC Detector
67
"S" Meter Amplifier
67
Exciter
68
Speaker Driver
68
RF Gain Control Amplifier
68
AM Detector
68
Sideband Generator Board
69
Audio and Balanced Modulator
69
Automatic Carrier Control (ACC)
70
CW Tone Oscillator
70
VSWR and Voltage ALC Amplifiers
70
Transmit if Amplifier
70
Transmit Filter Selection
71
Transmit Gain Control Amplifier
71
VHF Mixer
72
Receiver/Exciter Mother Board
72
Low Pass Filter and Balanced Mixer
72
Transmit Bilateral Amplifier and Filter
72
Predriver, Driver and Power Amplifier
73
Current ALC Detector
73
VSWR ALC Detector
73
28VDC Regulator
73
12VDC and 5VDC Regulators
74
Regulator Transistor Locations
74
DC Inverter
74
Transceiver Block Diagram
75
DC Inverter Step Start Assembly
77
Regulator Schematic Diagram
79
Filter Module
80
RF Detector Board
80
DC Relay Control Circuit
80
Motor Control Board
82
Filter Module Block Diagram
83
Voltage ALC Detector
87
ACC Detector
87
Output Detector
87
Key Line
87
Meter Panel
88
Reflected Power Detector
88
Maintenance and Repair
91
Cover Removal
91
Performance Test
91
Test Equipment
91
Front Panel Control Test Positions
92
Power Supply Testing
95
Front Panel and Main Frame Testing
95
Receiver Test
96
Transmitter Test
97
Synthesizer Troubleshooting
98
Frequency Coding
100
Synthesizer Subassembly Testing and Alignment Procedures
104
Spectrum Generator Testing and Alignment Procedures
104
Low Digit Generator Testing
107
Translator Testing
111
VHF Divider Testing
116
VCO Testing
119
Receiver/Exciter Board Alignment
121
Removal of Filter Module
125
Front Panel Servicing and Removal
125
Power Supply Removal
125
RF Power Amplifier Removal and Servicing
127
Synthesizer Mechanical Assembly Diagram
129
Printed Circuit Boards
130
Logic Notes
130
Unit Top View and Table of Assemblies
135
Schematic Diagrams
139
Accessories
207
Phone Patch Option
207
Manual Phone Patch Schematic Diagram
209
Receiver Protector
211
Audio Remote Control
213
Troubleshooting the Audio Remote Control
216

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sunair GSB-900 Operation And Maintenance Manual (219 pages)

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