You will note that many of the common glitches on our planes come from the plane in self. A lot of electric planes have many problems with the noise of the motor and the energy modified by the esc, a ferrite donut can solve this problem with the esc, and placing the receiver far from the motor also relieves some of the interference. On Gas powered planes the engine could cause some interference so you have to place the receiver far from it. On helicopters loosen bolts cause interference. Some servos have to much noise and can cause an interference. I could name many other things that cause interferences, even on the proven new 2.4 Mhz radios. When building a model you have to be very careful to isolate the receiver, to extend the receiver antenna as straight as possible and always do a range check, preferable with the help of someone else who could grab the plane while you are moving the surfaces (90 feet away) and the most important think is to do it also with the engine at WOT so you can be sure that there will be no problems with the noise or vibration of the engine or motor.
I hope this could clarify something.