Motorola GM300 VHF-Radio

PLL and VCO Block Diagram

This radio use dual VCO, one for Transmit and one for Receiving.
The output from TX-VCO is Transmit-frequency.
The output from RX-VCO is Transmit-frequency + 45,100MHz.

User Manual`s

8-channels User Manual

16-channels User Manual

COMPONENT`S

Schematic Diagram

MC145158 Serial Input PLL Frequency Synthesizer

Dual Operational Amplifier

Quad Operational Amplifier

TDA1519 Audio Power Amplifier