Return-Path: X-Spam-DCC: paranoid 1356; 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=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO 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 tAJC63Xc004719 for ; Thu, 19 Nov 2015 13:06:03 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZzNuQ-0000Li-RI for rs_out_1@blacksheep.org; Thu, 19 Nov 2015 12:01:50 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZzNuQ-0000LZ-J8 for rsgb_lf_group@blacksheep.org; Thu, 19 Nov 2015 12:01:50 +0000 Received: from smarthost01a.mail.zen.net.uk ([212.23.1.1]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1ZzNtK-0006kN-5f for rsgb_lf_group@blacksheep.org; Thu, 19 Nov 2015 12:01:49 +0000 Received: from [82.70.254.222] (helo=OfficeWin7.lan) by smarthost01a.mail.zen.net.uk with esmtp (Exim 4.80) (envelope-from ) id 1ZzNt8-000E75-U4 for rsgb_lf_group@blacksheep.org; Thu, 19 Nov 2015 12:00:31 +0000 Date: Thu, 19 Nov 2015 12:00:30 +0000 From: Chris Wilson Organization: Gatesgarth Developments X-Priority: 3 (Normal) Message-ID: <1729369062.20151119120030@chriswilson.tv> To: "rsgb_lf_group@blacksheep.org" MIME-Version: 1.0 X-Originating-smarthost01a-IP: [82.70.254.222] X-Scan-Signature: 5c1f37c04fc013ebbc2288fd3791d043 Subject: LF: Antenna relays Content-Type: text/plain; charset=us-ascii 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: 5166 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. -- Best regards, Chris 2E0ILY mailto:chris@chriswilson.tv