servos twitter w/o tx...whats up?
Sorry to dissagree with FCC but it is normal. Unless he has some receivers with an as yet not discovered characteristic, they will jitter anytime nearby electronic energy in range capturable by the automatic gain control (a function all good receivers have) is present. The degree and severity depend on the the strength of the unknown radiation. This can be severe or barely perceptable. Yes, JR recievers are as susceptable to this as any other good design.