Flight Youth Engineering
Member
As our first RV-12IS is nearing completion and we complete our final tests, we are having trouble with the co-pilot intercom only.
The problem I am struggling to solve is with the intercom. Pilot talks, copilot can hear. Copilot talks nobody can hear, no side tone either. Yet if co-pilot transmits on the radio the sidetone is apparent either way and the transmission is clear and strong.
The GTR200 is configured correctly. I have also back-to-back tested this radio in a known good airframe (a Tecnam) that I installed a GTR200 in a couple of years ago. It worked fine. So, the GTR200 is not faulty.
I am struggling to think of a wiring issue that could give you perfect radio transmit and receive along with correct sidetone, yet not deliver intercom to the pilot from the copilot.
I would greatly appreciate some help here. I am going to do some more troubleshooting tomorrow (Monday your time), as my focus is now back to what the harness pinouts are, and I would appreciate anything you have to suggest.
(This is a factory supplied Garmin Avionics package)
The problem I am struggling to solve is with the intercom. Pilot talks, copilot can hear. Copilot talks nobody can hear, no side tone either. Yet if co-pilot transmits on the radio the sidetone is apparent either way and the transmission is clear and strong.
The GTR200 is configured correctly. I have also back-to-back tested this radio in a known good airframe (a Tecnam) that I installed a GTR200 in a couple of years ago. It worked fine. So, the GTR200 is not faulty.
I am struggling to think of a wiring issue that could give you perfect radio transmit and receive along with correct sidetone, yet not deliver intercom to the pilot from the copilot.
I would greatly appreciate some help here. I am going to do some more troubleshooting tomorrow (Monday your time), as my focus is now back to what the harness pinouts are, and I would appreciate anything you have to suggest.
(This is a factory supplied Garmin Avionics package)