Return-Path: X-Spam-DCC: paranoid 1233; 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 t8DGBfmm013197 for ; Sun, 13 Sep 2015 18:11:41 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Zb9mU-0003yT-Q5 for rs_out_1@blacksheep.org; Sun, 13 Sep 2015 17:05:30 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Zb9mU-0003yK-Gy for rsgb_lf_group@blacksheep.org; Sun, 13 Sep 2015 17:05:30 +0100 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 1Zb9lK-0006bM-Qo for rsgb_lf_group@blacksheep.org; Sun, 13 Sep 2015 17:05:29 +0100 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id 7F9A320B0C for ; Sun, 13 Sep 2015 18:04:03 +0200 (CEST) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3nDbGq1nNHz5vNB for ; Sun, 13 Sep 2015 18:04:03 +0200 (CEST) Message-ID: <55F59E72.6030507@posteo.de> Date: Sun, 13 Sep 2015 18:04:02 +0200 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: , <0LgZRV-1Ynhr40YD7-00nzt1@mail.gmx.com> <55F58210.25452.E34F87@mike.dennison.ntlworld.com> <55F57720.3010903@posteo.de> <003101d0ee29$20887cf0$6401a8c0@JAYDELL> In-Reply-To: <003101d0ee29$20887cf0$6401a8c0@JAYDELL> X-Scan-Signature: 1908b49407fc556987226b536cc4bad0 Subject: Re: LF: R7NT WSPR15 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: 4065 Hi Jay, I think the guard ring above the upper winding of the coil lost its contact to this winding. So it was floating. Or, the contact was loose so there was a small arc that started to burn that ring down so the structure became more and more inhomogenious, from a E-field view. Well, at least it worked very well since 2011! I want to get even better results after the maintenance. There is some room for improvements: The diameter / length ratio has never been optimal on that coil. I want to check if it's possible to build a double layer coil, at least a few of the upper windings... Effort but interesting :-) 73, Stefan Am 13.09.2015 15:35, schrieb jrusgrove@comcast.net: > Stefan > > Any idea what started the meltdown? > > Heard someone say once: There are two types of LF ops ... those that > have experienced fires ... and those that will ;~) . > > Jay W1VD WD2XNS WE2XGR/2 > > > ----- Original Message ----- From: "DK7FC" > To: > Sent: Sunday, September 13, 2015 9:16 AM > Subject: Re: LF: R7NT WSPR15 > > >> Hi LF, >> >> Unfortunately my LF coil got damaged during transmitting a few weeks >> ago. I'm soon repairing the coil and hope to join the 2200m band then >> again. >> >> https://dl.dropboxusercontent.com/u/19882028/LF/20150910_193005.jpg >> https://dl.dropboxusercontent.com/u/19882028/LF/20150910_192916.jpg >> https://dl.dropboxusercontent.com/u/19882028/LF/20150902_182551.jpg >> >> 73, Stefan >> >> Am 13.09.2015 15:02, schrieb Mike Dennison: >>> Alex was also a good signal with me when he sent Opera 32 last night. >>> >>> Mike, G3XDV >>> ========== >>> >>> >>>> Hi Alex, >>>> >>>> >>>> >>>> sorry my WSPR is on strike, no uploads. >>>> >>>> Made it now manually. >>>> >>>> >>>> >>>> 1745 -35 1.1 0.137603 0 R7NT KN97 53 >>>> >>>> 1800 -32 1.1 0.137603 0 R7NT KN97 53 >>>> >>>> 1815 -35 -0.2 0.137604 0 UT7GH KN66 20 >>>> >>>> 1845 -36 1.5 0.137603 0 R7NT KN97 53 >>>> >>>> 1900 -34 1.5 0.137603 0 R7NT KN97 53 >>>> >>>> >>>> >>>> 73 Joe >>>> >>>> >>>> >>>> >>>> >>>> >>>> ----- >>>> No virus found in this message. >>>> Checked by AVG - www.avg.com >>>> Version: 2015.0.6125 / Virus Database: 4419/10626 - Release Date: >>>> 09/12/15 >>>> >>> >>> >>> >> > >