Use a flip-flop circuit. But If you have any chance for innermod you
will experience troubles galore, that is why dtmf sequences are used
rather than random pl signals.
Rich wrote:
>
> Design help needed.
>
> I'd like to take a Selectone ST138 to a maxtrac receiver in a
> Desktrac.
>
> I want it to latch and toggle the output to a 12V relay. So when I
> key the
> portable with that PL it will close and when I key it the second time
> it
> will open.
--
73...Clark Beckman N8PZD
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