The GH RT-21 is the best option I know of. Check out eHam.net for used units.
That is where I found mine. - John Owens - N7TK
> On 03/08/2024 9:31 AM PST David Mitchell <wb2pjh@gmail.com> wrote:
>
>
> I have a Yaesu G-800 rotator on a roof tower and the motor is fine, but I
> hate the controller. I know that the RT-21 by Green Heron is an excellent
> product, but @$600 is pricey, and I've never seen a used RT21 go up for
> sale.
>
> Can anyone suggest an alternative? I am comfortable building, and am
> knowledgeable in electronics. I am also OK with building an interface and
> using computer software to control the motor.
>
> I have a G-450A and am perfectly fine with the controller- the paddle
> switches are easy to control with my left hand while I am sending CW or
> tuning with my right.
>
> Thanks,
>
> 73,
>
> Dave WB2PJH
>
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