• RF Circuit Schematic
• IF Circuit Schematic
• Baseband Circuit Schematic
• Power Amplifier Circuit Schematic

1. Introduction
2. Safety Precautions
3. Technical Specifications
4. Circuit Description
5. Disassembly and Assembly
6. Troubleshooting
7. Adjustment and Alignment
8. Parts List
9. Schematic Diagrams

Importance of the Manual

Frequency Range

: Covers 26–33 MHz, 47–54 MHz, 136–174 MHz, and 400–480 MHz for both transmit and receive.

• Inject aligned modulated signal at specified RF levels into antenna port.
• Adjust band-pass filters, mixer tuning, and IF transformer tuning for maximum sensitivity and correct IF center frequency.
• Set squelch and discriminator adjustments per published values.

Why You Might Need the Service Manual PDF