Guys, believe me, you really don't want anything metal near your Phone/transmitter unless your using it as a way to import/export a signal between an amplifier and the device. But Duck tape is fine....It's got no metal in.
It's abit like having an X-ray with a lead suit on, ut less exstream. Think about the GPS receiver in the Phatom, it's got a Shield (which with out looking I'd guess was tied to Ground to stop stray signals from the receiver/Naza upsetting the GPS module. Wrapping stuff even in sticky tin foil will become a barrier, as the signal WILL find a way to it's ground, or be shielded from a an external signal.
Hmmmmm did I explain that ok? I must take the lid off the Phantom and do some exploring, just for the hell of it.
Ex. G7JYT now another callsign
Talking of that..... I wonder if there is any type of suppression on the prop motor coils, or for those that have them gimbal motor coils. I don't know I haven't looked, but I will. I don't know brushless motors, but having magnetic coils to work, with what I'm going to guess is PWM means that if they aren't screened, the could at least cause spike in a signal when energising and de-energising....