Return-Path: X-Spam-DCC: paranoid 1181; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, RATWARE_GECKO_BUILD autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id tAJE1tiS005179 for ; Thu, 19 Nov 2015 15:01:55 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZzPjH-0001V3-7f for rs_out_1@blacksheep.org; Thu, 19 Nov 2015 13:58:27 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZzPjG-0001Uq-Um for rsgb_lf_group@blacksheep.org; Thu, 19 Nov 2015 13:58:26 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.86) (envelope-from ) id 1ZzPi8-0007Sd-Qa for rsgb_lf_group@blacksheep.org; Thu, 19 Nov 2015 13:58:25 +0000 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id B385E20A29 for ; Thu, 19 Nov 2015 14:56:57 +0100 (CET) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3p1jHF4c0tz5vNJ for ; Thu, 19 Nov 2015 14:56:57 +0100 (CET) Message-ID: <564DD529.1030403@posteo.de> Date: Thu, 19 Nov 2015 14:56:57 +0100 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <1729369062.20151119120030@chriswilson.tv> In-Reply-To: <1729369062.20151119120030@chriswilson.tv> X-Scan-Signature: 0a4643e586472c13187d293ec5d096c2 Subject: Re: LF: Antenna relays Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 5175 Hi Chris, I would avoid doing this step. It may be comfortable but it's hard for most relays to carry RF currents of a few ampere and voltages of a few 10 kV :-) There may be some vacuum relays though, i don't know. Could be interesting.... 73, Stefan Am 19.11.2015 13:00, schrieb Chris Wilson: > 19 November 2015 > > > I am currently running a bottom strapped windowed ladder line feeder to > my horizontal quad loop as the vertical for LF, the loop as the > capacitive top hat. It means I am unable to use it for HF though. I am > wondering if I might add a remote switched relay at the bottom of the > ladder line, so it has two states. One connects my co ax feeder to the > ladder line with the bottom strapped together. the other opens the > strap and connects the 2 legs to a balun and then my co as feed line. > > Given the voltages involved at LF, what sort of relay would I need to > be looking at? Thanks. > > > >