I got my new RC Report yesterday, and read the Tony Stillman "Radio Ramblings" article.

He has 2 reports of repeatable, testable reaction of Futaba 14Z and 9Z systems (with the synthesized RF module) to nearby cellphone operation, acting as barracudahockey described. Incoming calls cause the phone to issue a lot of signal, just before ringing, which produces a response from the synthesized system.

They tried to reproduce with Polk and HiTec synthesized systems, and could not get a reaction.

Interesting article, before I read it I was just dismissing the cell phone interference thing. Maybe I'll pay more attention now.

Good luck,
Dave Olson