Piper J3
Well Known Member
I have a question? My FlightCom 403 intercom needs to have a slight squelch adjustment (about 20 degrees on rotary knob) between idling on the ground Vs. flying in cruise flight. Problem certainly appears to be ambient background noise level. Is this normal? If not, what can I adjust to fix? This is installed in an early model RV-12.
Thanks in advance?
Thanks in advance?