freeair

i dont like the way you have positioned the RX with the battery behind , this has nothing to do with radio interference but if you should crash this model nose in , say bye bye to the rx as the battery will squash the receiver into the firewall. can,t you position the battery up against the firewall behind tank and then fit the rx behind it and run both antennas parrallel up high to avoid the metal pushrods etc. also the rx switch should be replaced with something better as i think this is the circut board type and they are very deadly due to parts of the board coming adrift [ lose of contact ] when you have all sorted you should do alot of ground tests with engine running above idle whilst you walk away just like range testing.