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Icom Manuals
Transceiver
IC-290A
Instruction manual
Icom IC-290A Instruction Manual
144mhz all mode
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Also See for IC-290A
:
Service manual
(90 pages)
,
Maintenance manual
(110 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Specifications
Description
Multi-Purpose Scanning
Dual Vfo's
Continuous Tuning System
Installation
Unpacking
Location
Power Requirements
Antenna
Microphone
External Speaker
CW Key
Control Functions
Front Panel
Mode Switch
Tuning Control Knob
Volume Control and Power Switch
RIT Control
Squelch Control and RF Power Switch
MIC Connector
Priority Switch
Scan Start/Stop Button
Vfo/Memory Switch
Tone Call Switch
Rear Panel
ACC Socket Connections
Under the Top Cover
Operation
How to Tune
Preset Frequencies
Frequency Display on each Mode
1Khz Steps Switch
Vfo/Memory Switch and VFO Switch
Transfering VFO Frequency
RIT (Receiver Incremental Tuning)
Offset Switch (Duplex Operation)
Resetting the Offset Frequency
Memory Channel Operation
Memory Write
Memory Reading
Scanning Operation
Memory Scan
Programmed Scan
VFO Full Range Scan
Resuming Scan
Priority Function
SSB Operation
Receiving
NB (Noise Blanker)
CW Operation
AGC (Automatic Gain Control)
Transmitting
FM Operation
Satellite Communication
Frequency Chart
Inside View
Main Unit Side
PLL Unit Side
Circuit Description
Outline
Receiver Circuits
Antenna Switching Circuit
SSB, CW Detector Circuit
BFO Circuit
AF Circuit
AGC Circuit
Squelch Circuit
Power Supply Circuit
Transmitter Circuits
Microphone Amplifier and Limiter Circuit
FM Modulator Circuit
Balanced Modulator Circuit
Transmit if Amplifier Circuit
Transmit Mixer Circuit
Buffer Amplifier Circuit
Power Amplifier Circuit
PLL Phase Locked Loop Unit
CW Monitor Circuit
Metering Circuit
Local Oscillator Circuit
Mixer, Low Pass Filter, and Amplifier Circuit
Programmable Divider Circuit
Reference Frequency Generator Circuit
Phase Detector and Loop Filter Circuit
VCO Unit
Sensor Unit
Clock Pulse Generate Circuit
Logic Unit
CPU Control Circuit
Scan Control Circuit
Frequency Control, Display and I/O Circuit
D/A (Digital to Analog) Converter Circuit
Troubleshooting
Block Diagram
Options
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Quick Links
1
Specifications
2
Power Requirements
3
Microphone
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See also:
Service Manual
,
Maintenance Manual
Table of
Contents
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Ic-290e
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