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Manuals
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AVCO Manuals
Radio
TAR-224
Instruction manual
AVCO TAR-224 Instruction Manual
Radio set
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Contents
Table of Contents
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Table of Contents
Table of Contents
Description of Radio Set TAR-224
C H a R a C T E R I S T I C S O F R a D I O S E T T a
Scope
Operation Procedure
F R O N T P a N E L C O N T R O L F U N C T I O N S
Receiver Operation
Readout Dial Calibration
Amplitude Modulation Reception
Continuous Wave Reception
Transmitter Operation
Antenna and Counterpoise Deployment
Transmitter Frequency Source Operation
Frequency Synthesizer
Front Panel Crystal
Transmitter Tuning
Transmitter Keying
Front Panel Key
External Key
Medium Speed Keyer
Amplitude Modulation Operation
Power Sources
Internal Battery
Internal Battery Charging
External Source 2 - 1
R a D I O S E T T a R - 2 2 4 C I R C U I T D E S C R I P T I O N
Scope
Radio Receiver-Transmitter Circuit Description
Receiver Functional Block Diagram Description
Schematic Diagram
Wiring Diagram
Receiver Individual Circuit Description
Antenna Matching Network Detailed Description (1A3A2)
RF Amplifier Detailed Description (1A3A3)
Local Oscillator Detailed Description (1A3A4)
AM Detector (1A3A8A1), am Automatic Gain Control (1A3A8A2) Detailed Description
Beat Frequency Oscillator (1A3A6A2) and Product Detector (1A3A8A2) Detailed Description
Transmitter Functional Block Diagram Description
Transmitter Circuit Description
Low Level Module Detailed Description (1A4A7)
Driver-Final Amplifier Assembly Detailed Description
Keyer Module Detailed Description (1A4A5) 3 - 1
Modulator Module Detailed Description (1A4A5) 3 - 1
RF Sampler Detailed Description (1A4A2) 3 - 1
Antenna Matching Network Detailed Description (1A4A8)
Antenna Tuning Module Detailed Description (1A4A1)
Motor Control Circuitry Detailed Description 3 - 1
Power Supply Circuitry (Part of Lal) 3 - 1
Battery Protection Circuit 3 - 1
Battery Charging Circuit Description (Part of 1A1A3)
Scope
Radio Set Electrical Alignment
Radio Receiver Electrical Alignment Procedure
Test Equipment
Local Oscillator Alignment
RF Amplifier Alignment
Antenna Matching Network and Parent Board
BFO Alignment
IF Amplifier Alignment
Transmitter Adjustments
Low Level Module Adjustments (1A4A7)
RF Sampler Module Adjustments
RF Sampler Test Equipment Set
Scope
Battery Removal and Replacement
Case Removal and Replacement 1A2
Receiver Assembly
Receiver Removal and Replacement
IF Amplifier Removal and Replacement 1A3A7
Tuner
Removal and Replacement (1A4A5)
Low Level Module and Keyer Module (Shield Removed)
Antenna Matching Network Removal and Replacement
Parent Board Removal and Replacement (1A4A9) 5 - 2
Driver-Final Section Shield Removal and Replacement
Replacement (1A1A2)
Scope
IF Amplifier Section
B F O a N D C a L I B R a T O R S E C T I O N
A U D I O a N D a G C S E C T I O N
T R a N S M I T T E R M a I N T E N a N C E
Antenna Matching Module Location
C S - 2 2 4 C I R C U I T D E S C R I P T I O N a N D M a I N T E N a N C E
General
Circuit Description
Crystal Replacement
Oscillator Alignment
Maintenance
Disassembly and Assembly
Parts List
L I S T O F M a N U F a C T U R E R S
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80045 PRC 31/570
I N S T R U C T I O N M A N U A L
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R A D I O S E T T A R - 2 2 4
M A N U F A C T U R E D B Y
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D I V I S I O N
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