quick question. i know changing the transmitter channel is bad bad bad.
but if it is so bad then why can i simply remove my tx crystal on my futaba 4yf. you would think they would at least solder it in the circuitry if they did not want you to change it.
so my 43 ch 72 mhz tx crystal can not be changed to a 44 ch 72 mhz (by me a unlicenced dude). 1. because it is illegal 2. because it could interfear with someone elses?
the next question is what would a manufacture do differently? crystals are inscribed with a "code" so doesnt a transmitter read the code and transmit it.? i understand how a change from a 72mhz to a 50mhz could mess up the signal but a 72mhz to a 72mhz conversion confuses me. someone please explain.

some say it is illegal ^ some not^ .which is it? i would like to do a 72 to 72 conversion (bought something from th scratch and dent)