Topband: Topband Digest, Vol 177, Issue 18

[Warren Merkel]

Trevor,

That sounds like a good use for a couple bias-t circuits.  You can inject
D.C. from the shack on the coax, and pick it back off at the antenna to
pull in the relay.  Only a cap and inductor required for each one.

Warren, KD4Z

Message: 1
> Date: Sat, 23 Sep 2017 13:39:59 +0100 (IST)
> From: MR TREVOR DUNNE <ei2glb at eircom.net>
> To: topband at contesting.com
> Subject: Topband: Relay switching at the base on antenna
> Message-ID:
>         <1091550243.109199.1506170399095.JavaMail.zimbra at eircom.net>
> Content-Type: text/plain; charset=utf-8
>
> Hi All
>
> Can Anyone tell me a simple way to switch a 12v relay at the base of an
> antenna using the rigs ptt as the trigger??
>
> Thanks
> Trevor
> EI2GLB
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> Topband mailing list
> Topband at contesting.com
> http://lists.contesting.com/mailman/listinfo/topband
>
>
> ------------------------------
>
> End of Topband Digest, Vol 177, Issue 18
> ****************************************
>