The rx is labelled ‘THRO, ROLL, PITCH, YAW, AUX1, AUX2, AUX3.’ from right to left.
Can anyone offer some clues as to what I’m doing wrong? At a pinch I could give up and buy a Spectrum DX6 from EBay.

Hi Dennis, we use Spektrum DX6 in the factory (with AR610 receivers). There are 4 three position switches to choose from - we map one of them to the Gear Channel for sound selection.Dennis Jones wrote: ↑Wed Apr 08, 2020 11:20 amPhil,
If you have no luck with the radio gear and you decide to buy a Spektrum DX6 be aware that the DX6 does not have any 3 way switches on the aux channels which means that sound selection will have to be from one of the sticks. Just a thought.
Dennis.