Hi all - I?m in what I would like to think is final config and checks before first engine start, checking radios for proper function. Radios are Garmin GTR 20 and 200, with a GMA 240 audio panel.
When GMA 240 is ON, on both radios I hear a beep beep beep about every second when speaking. Just depressing the PTT does not generate the beeps. Ground reports carrier only.
When the GMA 240 is OFF:
(1) when left on COM 1, transmits are free and clear.
(2) when left on COM 2, RX is displayed on the GDU when the PTT is depressed, I?m thinking this is because the GDU does not support 2 radios without an audio panel.
I?ve done some googling etc, but have not found a hint yet as to what might be causing the beep beep beep when the GMA 240 is ON.
Anyone run into this before ?
Regards
Chris Cook
N261CC
When GMA 240 is ON, on both radios I hear a beep beep beep about every second when speaking. Just depressing the PTT does not generate the beeps. Ground reports carrier only.
When the GMA 240 is OFF:
(1) when left on COM 1, transmits are free and clear.
(2) when left on COM 2, RX is displayed on the GDU when the PTT is depressed, I?m thinking this is because the GDU does not support 2 radios without an audio panel.
I?ve done some googling etc, but have not found a hint yet as to what might be causing the beep beep beep when the GMA 240 is ON.
Anyone run into this before ?
Regards
Chris Cook
N261CC