The Berg RXes are supposed to work like that. They are supposed to only listen to the radio that was turned on first while the receiver was first powered up. Since each radio has a little bit different *fingerprint,* the Berg can actually pick up on this and supposedly listen only to the transmitter it's supposed to.
Has anyone used these things in a bigger plane? I know they say full range but it still scares me ... looks like there may not be the greatest vibration damping...
-Eric