Return-Path: Received: (qmail 57580 invoked from network); 10 Nov 2004 12:44:38 -0000 Received: from unknown (HELO ptb-spamcore01.plus.net) (192.168.71.1) by ptb-mailstore02.plus.net with SMTP; 10 Nov 2004 12:44:38 -0000 Received: from mailnull by ptb-spamcore01.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1CRs6E-000ISj-Dq for dave@picks.force9.co.uk; Wed, 10 Nov 2004 13:01:23 +0000 Received: from [192.168.67.1] (helo=ptb-mxcore01.plus.net) by ptb-spamcore01.plus.net with esmtp (Exim 4.32; FreeBSD) id 1CRs6E-000ISg-Ay for dave@picks.force9.co.uk; Wed, 10 Nov 2004 13:01:22 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1CRrq1-000OlR-Rh for dave@picks.force9.co.uk; Wed, 10 Nov 2004 12:44:37 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1CRrpG-0006Zu-I3 for rs_out_1@blacksheep.org; Wed, 10 Nov 2004 12:43:50 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1CRrpG-0006Zl-6W for rsgb_lf_group@blacksheep.org; Wed, 10 Nov 2004 12:43:50 +0000 Received: from [194.203.13.70] (helo=viruswall.mmsuk.co.uk) by relay.thorcom.net with esmtp (Exim 4.41) id 1CRrp1-0006fq-UE for rsgb_lf_group@blacksheep.org; Wed, 10 Nov 2004 12:43:50 +0000 Received: by mms12031.pth.uk.astrium.corp with Internet Mail Service (5.5.2650.21) id ; Wed, 10 Nov 2004 12:43:23 -0000 Message-ID: From: "OSBORN, Chris" To: "LF Group (E-mail)" Date: Wed, 10 Nov 2004 12:43:27 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) X-SPF-Result: relay.thorcom.net: 194.203.13.70 is neither permitted nor denied by domain of astrium.eads.net X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=no, Subject: LF: Loading coil - suggestions Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit I've just spent some time constructing a new 136 kHz aerial loading coil and the results are most disappointing. . It is of basket weave construction on a 7 pointed dowelled wooden former with a mean diameter of about 20 inches. The wire is the same gauge as my old 'brewing bin' coil yet the Q is lower and the aerial current correspondingly down. The plastic R/S 4mm (tapping) terminals are well insulated on perspex strips and I was expecting great things of it. Can anyone suggest where I've gone wrong ? My earlier E-mail to the group vanished - perhaps I should not have included a .bmp attachment ! 73 Chris G3XIZ This email is for the intended addressee only. If you have received it in error then you must not use, retain, disseminate or otherwise deal with it. Please notify the sender by return email. The views of the author may not necessarily constitute the views of EADS Astrium Limited. Nothing in this email shall bind EADS Astrium Limited in any contract or obligation. EADS Astrium Limited, Registered in England and Wales No. 2449259 Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, England