Codan Radio Communications VT-3-150-SN User Manual
1-2
Audio Processor Board Instruction Manual
A continuous +9.5 VDC supply and a switched +8.0 VDC supply are required to power the
module which is normally supplied by the Main Transmitter Board.
module which is normally supplied by the Main Transmitter Board.
The 6 audio inputs on the FM Audio Processor are:
•
DYNAMIC MICROPHONE INPUT
•
600 OHM BALANCED INPUT
•
subtone inputs
•
auxiliary input.
•
direct modulation input for data signals.
The Audio Processor's balanced input pins are isolated by a transformer (T1) on the Transmitter
Main Board. Two audio outputs from the MT-3 Audio Processor are routed to the Synthesizer or
Crystal Controlled Oscillator Modules.
Main Board. Two audio outputs from the MT-3 Audio Processor are routed to the Synthesizer or
Crystal Controlled Oscillator Modules.