im using a spektrum DX5e and a AR500 reciever, im using channels 1 and 4 for drive and channel 5 is for the weapon.

now for some reason channel 4 and 5 will both operate when i operate channel 4, and when i try to operate channel 5 with the correct stick it doesn't work.

is there a straight forward soloution that im missing here? or is the reciever faulty or even the transmitter?

BUT for channel 5 i've modified my transmitter so i can use a buddy box, and up until now its worked fine so i don't really no whats happened.

any ideas?