[TowerTalk] Telrex rotator

[jimlux]

On 11/16/18 4:34 AM, john at kk9a.com wrote:
> I had one of these rotators and I never had an issue which was a big step
> up from the Hy-Gain HDR-300 that it replaced. Sadly the resale value is
> poor and I almost gave it away when I switched to using prop pitch
> rotators.
> 
> If it were me, I would replace the selsyn with a potentiometer and then
> almost any control box would read the direction, especially a Green Heron
> where you could calibrate the indication. The remaining issue would be
> supplying 120v to the motor. This could be done with relays activated by
> the low voltage control box or perhaps W2FU has a better solution.
> 

I don't know - synchros are awfully rugged, basically EMP immune, etc.

A better solution would be to use an Arduino to read the synchro and 
generate a DC voltage (or RS232 serial message) to the Green Heron.

Maybe the folks at Green Heron might take this on as a product to extend 
their line?