Ok, so I was told 1.2 GHz at higher powers interferes with GPS satellite reception, and that isn't AS much a problem on a fixed wing because you can stick the FPV antenna over out on the wing and the GPS receiver on the other side, but on a tight quad configuration, you don't have this option, so I went with the 5.8GHz. If I get a fixed wing I will probably use 1.2 GHz.