I still have my HITEC Eclipse 7 w/ my old Spektra module that flew any 72 mhz freq and the fusion 9 rcvr. and mostly all other rcvr's on Qpcm on seperate channels, ie; 28, 34, 50, 55, . Then HITEC finally got the 2.4 ghz systems for the existing Eclipse transmitters so i got into it also, i plug the module in the eclipse and set up the new 7 channel 2.4 rcvr and off i went into the world of no more pin at my field. That's the best part !! But with a few moments due to the Hitec eclipse 7 having the 7 model memory i can go back to the 72 mhz on a moments notice with the planes i haven't updated with new 2.4 rcvr's. This is really great. I didn't have to buy a new transmitter. How can you beat that. I have two of them as a matter of fact so i could have 14 airplanes on a mixture of 72 mhz or 2.4 ghz, if and when 72 mhz is banned i have a second module on 2.4 for the second transmitter. will then just need the rcvr's for the rest of the non 2.4 airplanes. also the Hitec 2.4 ghz rcvr's are much more inexpensive than all the others and work just great. No bidding plugs easy set up and telemetry. This is my story and i'm sticking with OLD Hitec QPCM FM TX and it's new way of doing things.