ORIGINAL: flhyr
So... I thought that you could change the crystal(s) safely as long as you didn't go from the high band to the low band...
Is that incorrect? (note I've never had the need to change crystals, but this is what I've been told)
If not correct, they why in the world does futaba sell crystals to retail outlets like tower?
This is true for the Receivers and the high/low only applies to some models of Futaba receivers. Transmitters are NEVER permitted. Possible exception are those in the amateur band but you MUST have an amateur license to utilize that band legally.
Tower (and other companies) will sell anything to anyone. It is up to the buyer to determine legality or get the equipment to a shop for tuning. Example: GM will sell you a car that will go 150 MPH (Corvette). It is up to YOU to determine if it is legal to drive that speed.