R.J. Senior Heliman Location: SF bay area, CA USA
My Posts This: Topic Forum | Never had a PCM 9 but ATS is the tail rotor compensation mix. It mixes tail rotor to collective. May stand for Anti-Torque System (just a guess). ATS switch turns mix on and off. Pots and switches in back are for setup. Like modern radios, turn it off for heading hold gyros, on if desired for rate gyros. Somebody that had one may describe it better.
Regards, Rick |