User Manuals: ICOM IC-22U Amateur VHF Transceiver

Manuals and User Guides for ICOM IC-22U Amateur VHF Transceiver. We have 3 ICOM IC-22U Amateur VHF Transceiver manuals available for free PDF download: Instruction Manual

ICOM IC-22U Instruction Manual (28 pages)

144MHz FM Transceiver

Brand: ICOM | Category: Transceiver | Size: 3 MB

Table of Contents
2
Specifications
3
Description
4
Installation
5
Unpacking
5
Location
5
Power Requirements
6
Angle Adjustment
6
Optional Installation
6
Cable Connections
6
Antenna
7
Microphone
7
Microphone Plug Exploded View
7
Microphone Connection
7
Control Functions
8
Front Panel
8
Rear Panel
10
Operation
11
Initial Preparation
11
Receiving
11
Transmitting
11
Inside View
13
Main Unit Side
13
PLL Unit Side
14
Theory of Operation
15
General
15
Receiver Circuits
15
Antenna Switching Circuit
15
Transmitter Circuits
16
Audio Circuit
16
Squelch Circuit
16
Mixer Circuit
17
Power Amplifier
17
Audio Frequency Circuit
17
Output Power Control
17
Meter Circuit
18
Power Supply Circuit
18
Transmit-Receive Switch Circuit
18
PLL Unit
19
VFO-Frequency Conversion Circuit
19
Divider Circuit
20
Reference Oscillator
21
Phase Comparator
21
Transmit Muting Circuit
21
Tone Call Unit
21
Troubleshooting
22
Voltage Charts
24
Main Unit Transistors
24
Main Unit IC
24
PLL Unit Transistors
25
PLL Unit IC in Transmit Mode
25
PLL Unit IC in Receive Mode
25
Block Diagram
26

Icom IC-22U Instruction Manual (60 pages)

HF/VHF Transceiver

Brand: Icom | Category: Transceiver | Size: 5 MB

Icom IC-22U Instruction Manual (27 pages)

144MHz

Brand: Icom | Category: Transceiver | Size: 1 MB

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Transceiver Receiver Repeater Radio Two-Way Radio

More ICOM Manuals

User Manuals: ICOM IC-22U Amateur VHF Transceiver

ICOM IC-22U Instruction Manual (28 pages)

Table of Contents

Icom IC-22U Instruction Manual (60 pages)

Icom IC-22U Instruction Manual (27 pages)

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