I'm flying an RV-8 with a GTN650xi as comm 1 and PS Engineering 200A as comm 2. While flying away from an airport, I can receive fine on the GTN but when I get about 25+ miles out and turn around I can no longer hear ATC. They can hear me but I can't hear them. I have found the 200A will receive farther out so I turn comm 2 receive on for a while until I can hear ATC on comm 1. Both comms have the same type of Commant bent antenna and are about 25 in apart from each other on the belly of the plane. Any ideas? Thanks.