I'm about to finish my first Arducoper! :) But, I'm having trouble getting the ESC's to calibrate properly. I'm using a 9x (stock at the moment) and it seems to be all good.   I get the beeps at intervals with the ESC control disconnected and I get the start up melody when they are connected and then they go silent.   I think it might be my radio calibration. I've gone threw the wiki and that'…