It is not very hard to do this John. Just feed the RF in and out with a couple of RF capacitors and feed the DC in and out through 1 or 2 MH chokes I think MFJ has them for sale and I know they have them in tje MFJ 927 AMP. Willis 'Cookie' Cooke, TDXS DX Chairman K5EWJ & Trustee N5BPS, USS Cavalla, USS Stewart
________________________________ From: John Saxon <johnbsa...@yahoo.com> To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Sent: Tuesday, February 11, 2014 12:34 PM Subject: [Elecraft] OT ... Coax DC isolator Off topic here: I am experimenting with two different antennas and would like to switch between them with a relay. I am considering getting an isolator that permits placing the DC control voltage on the rf coax. Any thoughts on this? I have never done this before and would appreciate any advice/suggestions. OH...I am using my K3/10...so maybe not ENTIRELY off topic :-) -- John K5ENQ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html