Dave:
I actually did come up with a remotely controlled precision termination a
couple of years ago, just for kicks.
On the termination side, a small Sony servo motor was coupled to a 10-turn
precision potentiometer. Coupled to all of that was an optical encoder, a
crude single-crystal receiver and a DTMF board. The whole mess was sealed
inside a weatherproof box and could be precisely controlled by tones from my
2m handheld. It worked.
Cheers --
Mitch KJ4DX
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