Return-Path: X-Spam-DCC: paranoid 1481; Body=3 Fuz1=3 Fuz2=3 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,SPF_PASS 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 u9REE1xj022344 for ; Thu, 27 Oct 2016 16:14:01 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1bzlNS-0002dy-L2 for rs_out_1@blacksheep.org; Thu, 27 Oct 2016 15:09:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1bzlNR-0002dp-Ul for rsgb_lf_group@blacksheep.org; Thu, 27 Oct 2016 15:09:53 +0100 Received: from smarthost01d.mail.zen.net.uk ([212.23.1.7]) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1bzlNP-0007Oe-G6 for rsgb_lf_group@blacksheep.org; Thu, 27 Oct 2016 15:09:52 +0100 Received: from [82.70.254.222] (helo=OfficeWin7.lan) by smarthost01d.mail.zen.net.uk with esmtp (Exim 4.80) (envelope-from ) id 1bzlNN-0007Hp-Jg for rsgb_lf_group@blacksheep.org; Thu, 27 Oct 2016 14:09:49 +0000 Date: Thu, 27 Oct 2016 15:09:49 +0100 From: Chris Wilson Organization: Gatesgarth Developments X-Priority: 3 (Normal) Message-ID: <1838496439.20161027150949@chriswilson.tv> To: F6CNI - Andy - JN19QB In-Reply-To: <8239C38A828A4235981A7EC5FD32DA42@PCPMF> References: <1025448629.20161021150108@chriswilson.tv> <8239C38A828A4235981A7EC5FD32DA42@PCPMF> MIME-Version: 1.0 X-Originating-smarthost01d-IP: [82.70.254.222] Feedback-ID: 82.70.254.222 X-Scan-Signature: 5c335215f1b3de26d890ee84d49616ce Subject: Re: LF: Distance of LF vertical antenna element from lattice work steel mast? 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 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 9253 Hello F6CNI, Friday, October 21, 2016 Thanks Andy, and thanks Rik, excellent info and link, much appreciated. I may initially keep the vertical well away from the mast, but future ergonomics would be helped by bringing it nearer to the mast. For now, when my pulleys arrive, I will see what raising the corner of the existing loop and heightening the vertical add to my signal. Cheers. Best regards, Chris 2E0ILY mailto:chris@chriswilson.tv > Hello Chris. > In the year 2000 on LF I had a stell 14 meters mast supporting the top of > the vertical thin wire of my transmitting Inv L antenna. > I tried some distances between the mast and the vertical wire. With close > distance as 50 cm, I had some capacitance added and it had very influence on > the tuning unit, and sure bad result about the antenna efficiency. With 2 > meters of spacing or over, all was OK and the mast seems to have very little > influence. > 73 Andy.