I recently got a used R/C plane, and the the servo's start to move (all four of them) when the transmitter is turned on. They all move at the same time on their own without anyone touching the transmitter. Now its not the transmitter, because I use the same one and frequency for another plane.
Anyone have any ideas as to why they may be doing this? Bad receiver? or bad servo's? or something else? Thanks for any help!