sunair gsb-900 dx HF Transceiver Manuals

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

sunair gsb-900 dx Operation And Maintenance Manual (189 pages)

transceiver hf/ssb synthesized half-duplex

Brand: sunair | Category: Transceiver | Size: 16 MB

Training
2
Table of Contents
3
List of Illustrations
5
List of Tables
6
General Information
7
Transceiver Description
7
Front Panel
7
Control Panel
7
Filter Module
8
Power Supply
8
RF Power Amplifier
8
Technical Specifications
10
Installation
17
Unpacking and Inspection
17
Reshipping
17
General Installation and Mounting Information
18
Base Station Installation
18
Vehicular Installations
21
Marine Installations
22
Rack Mounted Installations
22
Antennas and Ground Systems
23
General
23
Whip Antenna
23
Narrow Band Antennas
24
Random Length Non Resonant Antennas
24
Power Requirements
26
Broad Band OHM Antennas
26
Operation from All A.C. Power Sources
26
A.C. Operation under High Line Voltage Conditions
26
115 VAC Power Cord Schematic
27
230 VAC Power Cord Schematic
27
Operation from D.C. Power Source
28
D.C. Power Connector Schematic
31
Mating Connectors and Accessories
32
Operation
33
Operating Controls
33
Frequency Switches
34
Operating DX into a 50 Ohm Antenna
37
Operating with the Antenna Coupler
38
KW Control Unit
41
Theory of Operation
43
Overall Block Diagram
43
Spectrum Generator
43
Broadband Amplifier
49
Prescaler
49
Preset Counters
49
Preset Generator
50
Phase Detector
50
Oscillators
51
Output Buffer Amplifier
51
Translator Buffer Amplifier
51
Logic Switching
51
Mechanical
52
Synthesizer Mother Board
52
Synthesizer Programming
53
Frequency Display
53
Decoder
53
Display
53
Synthesizer Block Diagram and Details
55
VHF Mixer Board
57
Broadcast Filter
57
RF Amplifier
58
VHF Filter and Bilateral Amplifier
58
Audio Board
60
Fixed if Amplifier and AGC Detector
60
"S" Meter Amplifier
60
RF Gain Control Amplifier
61
AM Detector
61
Product Detector
61
Speaker Driver
61
Audio and Balanced Modulator
62
Automatic Carrier Control
63
CW Tone Oscillator
63
Transmit if Amplifier
63
Transmit Filter Selection
64
Transmit Gain Control Amplifier
64
Low Pass Filter and Balanced Mixer
65
Transmit Bilateral Amplifier and Filter
65
Balanced Mixer and Receiver Shut down
65
Exciter Linear Amplifier
65
R.F. Power Amplifier
66
Current ALC Detector
66
ALC Detector
66
Transmitter Block Diagram
67
Circuit Operation
69
Regulator Transistor
69
D.C. Inverter
69
Voltage ALC Detector
72
ACC Detector
72
Output Detector
72
Key Line
72
Reflected Power Detector
75
Meter Panel
75
Keying Circuit
75
Maintenance and Repair
77
Preventive Maintenance
77
Cover Removal
77
Performance Test
77
Front Panel Control Test Positions
78
Frequency Coding
84
Synthesizer Subassembly Testing and Alignment
88
Module Removal
109
Removal of Filter Module
109
Front Panel Removal
109
Power Supply Removal
112
Power Supply Regulator Board
112
RF Power Amplifier Removal and Servicing
114
Power Amplifier Test Setup
114
Current ALC Wave Form
115
Synthesizer Mechanical Assembly
116
Printed Circuit Boards
117
Printed Circuit Board Repair and Maintenance
117
Logic Notes
117
And Gate
117
And or Invert Gate
118
J-K Flip Flop
118
Nand Gate
118
OR Gate
118
Inverter
119
Schmitt Trigger
119
Prom
119
Ram
119
Inverted Signals
120
Schematic Diagram
121
Display Board
126
Decoder Board
126
Decoder PC Board
126
Main Frame Wiring
128

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sunair gsb-900 dx Operation And Maintenance Manual (189 pages)

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