Hi TommyNad,
You cannot change a transmitter crystal without having the transmitter retuned, it is not legal to do this and it must be sent into an authorized repair center to be retuned.
You can however change your receiver crystal without having the receiver retuned. Just remember that if you have a Futaba receiver and it is on either a Low band (channel 11 to 35) then must not cross over to the High band (channel 36 to 60) range.
I hope you find this information helpful. You can also reach our Futaba support technical team at 217-398-8970, or via fax at 217-398-7721.
Sincerely,
Krysta
Lead Futaba Customer Service and Programming Technician
Also you may want to check our Website at (
http://www.futaba-rc.com)