Michael Henning
Well Known Member
I have a Icom A-200 being run through a Flightcom 403 Stereo Intercom that is wired with a Vans wiring harness. When I connect the intercom to the radio, the radio transmits, even if the PTT buttons are disconnected. If I disconnect the radio from intercom, it doesn't transmit. I have verified that the three wires that connect the two units are correct and that the wires are going into the correct position on the radio.
Any thoughts?
Any thoughts?