I have a 9ZAP transmitter, and I am a bit confused over which transmit modules are acceptable for use, and why some others are not. My 9Z has a FP-TP-FM module installed, and although the info on the Futaba web site suggests that the "TP" module is not to be used with the 9Z...It seems to be working just fine. What am I missing here? The info on the web site is typically quite brief, and I always like to know all the whys, and why nots, in these situations. Also, I would like to know about interchangeability so I'll know just exactly which modules I may also use in my 9CAP Tx. Thank you for your help in explaining the differences between module types, and clarifying this most perplexing problem.
Jim