I was using a 40 MHz T6EXP Futaba transmitter in PCM mode with the PCM Receiver of same frequency R13P 6 channel Futaba Receiver with 40 Mhz crystal. Just few days back i lost my receiver , and could not find the same available with 40 Mhz crystal. I have a doubt can i have a different receiver with apair of crystal. And Will the transmitter work with different crystal or it is designed to work only on 40 MHz. PLease Help regarding this.