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AT-120
Icom AT-120 User Manual
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Table of Contents
Contents
3
General Description
4
Specifications
5
Installation
6
Unpacking
6
Planning
6
Tuner Installation
6
Installation Recommendations
7
Antenna Tuner
7
Soldering PL-259
8
Coaxial Cable Connection
9
Control Cable Connection
9
Terminal Descriptions
10
Connections
10
Covering
11
Ground System
11
Cable Connections
12
Operation
13
Operation with Other Transmitters
14
Inside View
15
Top View
15
Side View
15
Theory of Operation
16
Forward Power Detector Circuit
16
SWR Detector Circuit
16
Phase Detector Circuit
16
Impedance Detector Circuit
17
Logic Circuit
17
LED Unit
17
Block Diagram
18
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Service Manual
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Icom AT-120 Specifications
General
Type
Automatic Antenna Tuner
Input Impedance
50 ohms
Power Supply
13.8 V DC
Frequency Range
1.8-30 MHz
Tuning Speed
2 to 3 seconds
Power Consumption
1A (max.)
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