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Manuals
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Yaesu Manuals
Transceiver
FT-221R
Instruction manual
Yaesu FT-221R Instruction Manual
Vhf
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Table Of Contents
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Contents
Table of Contents
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Table of Contents
Table of Contents
General Description
Specifications
Semiconductor Complement
Installation
General
Base Station Installation
Mobile Installation
Transformer Primary Wiring
Controls and Switches
Main Tuning Control
Band Switch
Front Panel Controls & Switches
Rear Panel Connections
Operation
Initial Check
Dial Readout
Receiver
Frequency Calibration
Transmitter
SSB and am Modes
CW Mode
Repeater Operation
VOX Operation
Crystal Controlled Operation
Block Diagram
Circuit Description
RX RF Unit
SSB if Unit
FM if Unit
AF AMP Unit
MIC AMP Unit
Exciter Unit
Booster Unit
Other Circuits
VFO Unit
FIX Unit
Local Unit
PLL Unit
Marker Unit
Tone Burst Unit
Power Supply & Regulator Unit
Maintenance & Alignment
Routine Maintenance
Alignment
Discriminator Meter Center
Frequency Adjustment
Voltage Adjustment for the Varicap Tuning Circuit
S Meter Setting
Carrier Balance
SSB Carrier Frequency
CW Carrier Level
Squelch Threshold
FM Deviatoin Adjustment
PO Meter Set
AM Carrier Level
Regulator Unit
Connector Resistance Chart
Connector Voltage Chart
Voltage Chart
Parts List
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Table of Contents
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General Description
3
Specifications
4
S Meter Setting
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