ORIGINAL: traski
OK I bought s Tower Hobbies 6 ch radio. Its on 47. Can I buy crystals for the TX and RX to change to say 42???
You CAN legally change the crystal on a receiver to match the frequency of the transmitter.
Since the transmitter is functioning on it's tuned frequency there are no drawbacks to this... and you can utilize second party RX crystals specifically made for your system too.