Maratrac internal accessory plug flat TX audio input?
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Maratrac internal accessory plug flat TX audio input?
Maratrac internal accessory plug flat TX audio input? anyone know which one it is or have a detailed service manual or schematic Im trying to wire in a repeater controller using the maratrac as a transmitter
Maratracs do not have that connector.
Most everyone uses the MIC HI line and the stock preemph/limiter and have excellent TX audio.
If you must have "flat audio", input to pin 6 U651A thru a 220 K resistor and a coupling cap. This still goes thru the deviation limiter stage.
External TX PL tone can be inputed to pin 13 of the interconnect, P6. Use a 4.7k series resistor and a coupling cap.
Most everyone uses the MIC HI line and the stock preemph/limiter and have excellent TX audio.
If you must have "flat audio", input to pin 6 U651A thru a 220 K resistor and a coupling cap. This still goes thru the deviation limiter stage.
External TX PL tone can be inputed to pin 13 of the interconnect, P6. Use a 4.7k series resistor and a coupling cap.