Brett,
Yes, I know what Spektrum says. But that is a sales pitch. ANY radio signal is subject to RF interference. It's just the nature of a radio signal. Now it's possible that they can reduce the amount of interference that it gets, but it's still possible for it to be hit with RF interference. The DSM that Spektrum and JR use will basically ignore any signal that doesn't have the ID of the transmitter encoded in the signal. BUT....... In this case if there is metal to metal contact creating RF signals it can be the stronger RF source and the signal from the transmitter will never get to the receiver. Therefore the receiver will never get communications from the transmitter and will act in the same manner as the original poster stated.

Even though a model uses a newer 2.4 ghz radio, all of the same methods and techniques used for older 72 Mhz radios to avoid causing RF interference need to be followed. To not do this thinking your radio is immune to signal interference is a recipe for disaster.

Ken