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Standard C58 Instruction Manual

All mode transceiver

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Table Of Contents

Table of Contents

Precautions
Features
Accessories
Panel Features
Front Panel Features
BNC Connector
Rear Panel Features
Internal Switch
Microphone
CH Step Switch
PTT Button
Before Operation
Installing Battery Packs
Handling Precautions for Dry Cells
Recharging Ni-Cad Battery Cells
Supply Voltage Check
Charging with the C12/230-6 Charger
Voltage Check
Batteries Types and Their Characteristics
Portable Operation
Back-Up Power for Microprocessor
Antenna Connection
Mobile Operation
Power Connection for Mobile Operation
Connecting External Antenna
Connecting External Speaker
Base Station Operation
Microprocessor Malfunction
Microprocessor Back-Up When Using an External Power Supply
Base Station Connection
Operating Instructions
Mode Switch Operations
Digital VFO
Frequency Display
Repeater Operation
CALL Key Feature
Memory Operations
Memory Recall
To Write Data into Memory
Memory Rewriting
Frequency Scanning
All Scan
Memory Scan
RIT Operations
Noise Blanker
Meter
Scan Rate
CW Operations
Key Connection
Optional Accessories
Service Manual Section
Theory of Operation
Receiver Section
FM Receiver
S Meter
Transmitter Section
FM Transmitter
SSB Transmitter
PLL Section
PLL Integrated Circuit
Vco
Local OSC
Programmable Counter
Phase Detector
Shift Circuit
Mixer
Prescaler
D/A Input Codes
Keyboard Functions
Channel Selection
Slide Switch Features
Display Section
Other Controller Peripheral Circuitry
Other Features
RESET Circuit
Disassembly
Rear Panel
Removing PC Board Assemblies PLL, Control Board
Alignment
Conditions
Required Measuring Instruments
Required Alignment Tools
TX Adjustment Set-Up
RX Adjustment Set-Up
LCD Supply Voltage Adjustment
PLL Section Alignment
Shift Voltage Adjustment
Comparative Oscillation Adjustment
Transmitter Section Alignment
RIT Alignment
Subcarrier Frequency Alignment
Younger Adjustment
Receiver Section Alignment
Linear Amplifier Adjustment
Deviation/Ssb Transmission Power Alignment
SSB Carrier Suppression Alignment
SSB Sensitivity Adjustment
FM Sensitivity Adjustment
Noise Blanker Alignment
S Meter Adjustment
Component Locations
PLL Board Component
RX and TX Board Component
RF Power Amplifier Board Component Locations
Rear Switch Board Component Locations
Tone Burst Board Component Locations
Function Switch Board Component Locations
EXT. Power Switch Board Component Locations
Exploded View and Parts List
Specifications
Changing Channel Step
Changing Procedure

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Derrick Pearce

June 11, 2025

can i get a replacement USB/LSB toggle sw P801 WH208C2630 ??????

Standard C58 Instruction Manual

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