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Motorola GM300 VHF-Radio

Motorola GM300 VHF-Radio

PLL and VCO Block Diagram

PLL and VCO Block DiagramThis 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


Schematic Diagram

MC145158 Serial Input PLL Frequency Synthesizer

Dual Operational Amplifier

Quad Operational Amplifier

TDA1519 Audio Power Amplifier