Return-Path: Received: from mtain-dd02.r1000.mx.aol.com (mtain-dd02.r1000.mx.aol.com [172.29.64.142]) by air-db06.mail.aol.com (v129.4) with ESMTP id MAILINDB064-869a4d6ebf7631f; Wed, 02 Mar 2011 17:06:46 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dd02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 42D2138000139; Wed, 2 Mar 2011 17:06:44 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PuuB2-00022X-Dc for rs_out_1@blacksheep.org; Wed, 02 Mar 2011 22:05:48 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PuuB2-00022O-2H for rsgb_lf_group@blacksheep.org; Wed, 02 Mar 2011 22:05:48 +0000 Received: from fish2.hurontel.on.ca ([216.46.129.163]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PuuB0-0006j5-6n for rsgb_lf_group@blacksheep.org; Wed, 02 Mar 2011 22:05:48 +0000 X-ASG-Debug-ID: 1299103543-38411e690001-a32kfu Received: from [192.168.1.100] (pppoe.dyn-216.46.157.234.hurontel.on.ca [216.46.157.234]) by fish2.hurontel.on.ca with ESMTP id rOOGM0rnGBiFiiVu for ; Wed, 02 Mar 2011 17:05:43 -0500 (EST) X-Barracuda-Envelope-From: weazle@hurontel.on.ca X-Barracuda-Apparent-Source-IP: 216.46.157.234 Mime-Version: 1.0 (Apple Message framework v1082) X-ASG-Orig-Subj: Re: LF: Corona Discharge - how to prevent ? From: John Bruce McCreath X-Priority: 3 In-Reply-To: Date: Wed, 2 Mar 2011 17:05:43 -0500 Message-Id: <232AE69D-3A18-4546-B4AF-D08BB44FCCDD@hurontel.on.ca> References: To: rsgb_lf_group@blacksheep.org X-Mailer: Apple Mail (2.1082) X-Barracuda-Connect: pppoe.dyn-216.46.157.234.hurontel.on.ca[216.46.157.234] X-Barracuda-Start-Time: 1299103543 X-Barracuda-URL: http://fish.hurontel.on.ca:8000/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at hurontel.on.ca X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=5.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.56873 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Corona Discharge - how to prevent ? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 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-aol-global-disposition: G x-aol-sid: 3039ac1d408e4d6ebf744916 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Graham, I had good success with a corona ring made from 1/4 inch (7mm) copper pipe= formed into a ring about the size of a small dinner plate. It does away with the "sharp ends syndr= ome" and adds some capacity at the antenna end as well. 73, J.B., VE3EAR LowFER Beacon "EAR" 188.830 kHz. QRSS30 EN93dr