There really needs to be more info to support any theory. What engine, what brand ignition, where are the trottle and choke servos mounted, what voltage is getting to the RX, what brand of RX, are all extentions twisted or the flat kind like JR, What kind of linkage is being used for the throttle and choke, How is the antenna being run and is it close to servo leads, how much distance is there between the ignition and the RX and RX switchs, what are the servos being used and how many? The fact that the throttle channel on the first RX died makes me think that the RX may be getting too much voltage. If this is the case it could be getting hot and when certain electronic components get hot they reduce effiecency such as RF filters, capacitors. Please supply more info and we will see what we can all come up with.


Shawn