hello dale8888 i'm in perthw.a and here at the moment the maaa is investigating the dx7 wether to see if it is viable to use and to see if it is safe to use. some of us is a bit slow over here or to old to change. My self i have no use for one i have a pcm 9xseries2 which I fly my planes with. I have changed rx and the tx module to full synthesized no crystals yay. I don't know much about the tx that you are asking about but when I started out I went to the club here in perth to find out what they are using. majority where using jr. they told me of far do i intend to go or was i happy just to fly one plane. In the end I brought myself a 3810 which is a jr 8 channell radio