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 <[email protected]> > To: [email protected] > Subject: Topband: Relay switching at the base on antenna > Message-ID: > <[email protected]> > 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 > [email protected] > http://lists.contesting.com/mailman/listinfo/topband > > > ------------------------------ > > End of Topband Digest, Vol 177, Issue 18 > **************************************** > _________________ Topband Reflector Archives - http://www.contesting.com/_topband
