Instead of going synthesized, why not get the spectrum modual and recievers when they come out. Its 2.4Ghz and automatically locks onto an open channel so you dont even have to turn dials to set your frequency. You can also get rid of the antenna which can obstruct your view depending on how you hold the radio.
http://www.horizonhobby.com/Shop/ByC...ProdID=SPM1004