Glen Merritt , thanks for finally getting to the punch line.
For a second there I thought I was crazy after reading numerous times in all of my airplane manuals, IT IS ILLEGAL IN THE UNITED STATES TO CHANGE OR ALTER ANY COMPONENT IN A TRANSMITTER. .............but just one question ? why do hobby shops sell crystals to the end users if the end users cannot legally change the crystal. Why not just sell them to certified technicians that can tune them properly at the time of swapping them. Oh yea one more question , Whats with dual conversion crystals , I think I understand single conversion (swap the crystal on the receiver ) ? but dual involves both receiver and transmitter. Oh well and also if I change the crystal on a receiver to match my transmitter should it get tunned again ?
