Icom IC-290A Manuals

Manuals and User Guides for Icom IC-290A. We have 3 Icom IC-290A manuals available for free PDF download: Maintenance Manual, Service Manual, Instruction Manual

Icom IC-290A Instruction Manual (49 pages)

144MHz all mode

Brand: Icom | Category: Transceiver | Size: 5.03 MB

Table of Contents
2
Specifications
3
Description
5
Multi-Purpose Scanning
5
Dual Vfo's
5
Continuous Tuning System
5
Installation
6
Unpacking
6
Location
6
Power Requirements
7
Antenna
7
Microphone
8
External Speaker
8
CW Key
8
Control Functions
9
Front Panel
9
Mode Switch
9
Tuning Control Knob
9
Volume Control and Power Switch
10
RIT Control
10
Squelch Control and RF Power Switch
10
MIC Connector
10
Priority Switch
11
Scan Start/Stop Button
11
Vfo/Memory Switch
11
Tone Call Switch
11
Rear Panel
12
ACC Socket Connections
12
Under the Top Cover
13
Operation
14
How to Tune
14
Preset Frequencies
14
Frequency Display on each Mode
14
1Khz Steps Switch
15
Vfo/Memory Switch and VFO Switch
15
Transfering VFO Frequency
16
RIT (Receiver Incremental Tuning)
16
Offset Switch (Duplex Operation)
16
Resetting the Offset Frequency
17
Memory Channel Operation
18
Memory Write
18
Memory Reading
18
Scanning Operation
19
Memory Scan
19
Programmed Scan
19
VFO Full Range Scan
20
Resuming Scan
20
Priority Function
22
SSB Operation
23
Receiving
23
NB (Noise Blanker)
23
CW Operation
24
AGC (Automatic Gain Control)
24
Transmitting
24
FM Operation
25
Satellite Communication
26
Frequency Chart
26
Inside View
27
Main Unit Side
27
PLL Unit Side
28
Circuit Description
29
Outline
29
Receiver Circuits
29
Antenna Switching Circuit
29
SSB, CW Detector Circuit
30
BFO Circuit
30
AF Circuit
30
AGC Circuit
30
Squelch Circuit
31
Power Supply Circuit
31
Transmitter Circuits
32
Microphone Amplifier and Limiter Circuit
32
FM Modulator Circuit
32
Balanced Modulator Circuit
32
Transmit if Amplifier Circuit
33
Transmit Mixer Circuit
33
Buffer Amplifier Circuit
33
Power Amplifier Circuit
33
PLL Phase Locked Loop Unit
34
CW Monitor Circuit
34
Metering Circuit
34
Local Oscillator Circuit
34
Mixer, Low Pass Filter, and Amplifier Circuit
35
Programmable Divider Circuit
35
Reference Frequency Generator Circuit
35
Phase Detector and Loop Filter Circuit
36
VCO Unit
36
Sensor Unit
36
Clock Pulse Generate Circuit
36
Logic Unit
37
CPU Control Circuit
37
Scan Control Circuit
37
Frequency Control, Display and I/O Circuit
40
D/A (Digital to Analog) Converter Circuit
41
Troubleshooting
42
Block Diagram
45
Options
46

Icom IC-290A Maintenance Manual (110 pages)

144MHz all mode transceiver

Brand: Icom | Category: Transceiver | Size: 26.67 MB

Icom IC-290A Service Manual (90 pages)

HF/VHF Transceiver

Brand: Icom | Category: Transceiver | Size: 29.8 MB

Icom Categories

Transceiver Receiver Repeater Radio Two-Way Radio

More Icom Manuals

Icom IC-290A Manuals

Icom IC-290A Instruction Manual (49 pages)

Table of Contents

Icom IC-290A Maintenance Manual (110 pages)

Icom IC-290A Service Manual (90 pages)

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