What else is USING the 900mhz and 2.4 ghz seftions of the RF spectrum ALREADY? Lest see... garage door openers for one... lets make everyone impound thoier keychains and the garage door opener remotes out of thier cars at the flying field because they DON"T check to see if something else is on the same frequency before sending uot thier signals. (they just broadcast thier code...) I've been walking around outside with a keychain remote in my pocket and accidentally opened my garage door. (because something in my pocket hit the button.)

What else is going to be out at the field that can wipe out a model? (aren't some Cell phones using 2.4 ghz? Aren't we now recommending that people take cell phones tot he field in case someone needs to call EMS?)

Wouldn't that be the same basic logic for not wanting to be on 27 mhz with our systems for aircraft? (aside fromt he "toys" like Cox/Estes's Sky Rangers) Too much stuff already using the frequencies and too high a chance of interference.