What is a black triangle and where is the top row of what? All a "transmit" light shows (*) is that the PTT switch has been pushed and the radio has gone from the receive to the transmit mode. The PTT click can be heard on the hand held radio opening the frequency,īut no sound of the voice transmission is transmitted to the receiving handheld radio.īlack triangle on top row shows the radio is transmitting.
So I can understand the wiring was done correctly on initial installation. I am using the previous owner's Bose headsets. Previous owner says everything was fine prior to my purchase of the aircraft.
Just purchased a used aircraft with a 5 year old Becker AR4201 radio that seems to work normally BUT no sound goes out on transmission.ĭoes that mean carrier but no audio or no carrier at all? A handheld at one end of the runway with the aircraft on the other should tell you whether or not there is carrier.
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