This is a change of tack, but is anyone aware of a dual receiver system that might be in existence. I am surprised that one of the more enterprising electronic companies hasn't come up with a dual receiver backup system yet.......the receiver equivalent of the Powerbox system for battery backup. I'm sure they would find a market particularly with models such as the Mig where there is a huge investment of time and money....

It would be great to have some type of cpu, to which two receivers were connected, that could detect when the filtered signal on one receiver dropped to critical levels. It could then switch to draw signal from the other receiver......anyone know of such a system??