The GTN-6XX install manual states that for best performance, a second comm antenna should be mounted at least six feet from the GTN comm antenna. For those with GTN-650 installations and a second comm also installed, how are your comm antennas positioned?
The only practical surface to mount a conventional comm antenna on the RV-8 is the fuselage belly and there is not enough real estate unless the second comm antenna is mounted well aft, which probably won't provide sufficient ground clearance. From my photo search, it would appear most dual comm antennas are mounted side by side just aft of the main spar on the fuselage belly, which works out to about two feet of separation. I am not considering a wing-tip comm antenna installation. Anyone out there with real life experience with the GTN-650?
The only practical surface to mount a conventional comm antenna on the RV-8 is the fuselage belly and there is not enough real estate unless the second comm antenna is mounted well aft, which probably won't provide sufficient ground clearance. From my photo search, it would appear most dual comm antennas are mounted side by side just aft of the main spar on the fuselage belly, which works out to about two feet of separation. I am not considering a wing-tip comm antenna installation. Anyone out there with real life experience with the GTN-650?