Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mg01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 76493380000A6; Sun, 29 Apr 2012 10:21:54 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SOUzB-0006nN-NC for rs_out_1@blacksheep.org; Sun, 29 Apr 2012 15:20:25 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SOUzB-0006nE-8w for rsgb_lf_group@blacksheep.org; Sun, 29 Apr 2012 15:20:25 +0100 Received: from smtp-vbr7.xs4all.nl ([194.109.24.27]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1SOUz9-0000Uy-Ml for rsgb_lf_group@blacksheep.org; Sun, 29 Apr 2012 15:20:24 +0100 Received: from pc-roelof (ndb.demon.nl [82.161.81.65]) by smtp-vbr7.xs4all.nl (8.13.8/8.13.8) with ESMTP id q3TEKHRr023590 for ; Sun, 29 Apr 2012 16:20:22 +0200 (CEST) (envelope-from roelof@ndb.demon.nl) To: rsgb_lf_group@blacksheep.org References: <28E264A70BC6433AB06D915D0EAFB8B9@AGB> <2BB37ECFB44044EFACB44777CD3A2963@AGB> <1C53C5D0C2994BE792CED0AD217ADB76@lindavideo> Date: Sun, 29 Apr 2012 16:20:16 +0200 MIME-Version: 1.0 From: "Roelof Bakker" Message-ID: In-Reply-To: <1C53C5D0C2994BE792CED0AD217ADB76@lindavideo> User-Agent: Opera Mail/11.62 (Win32) X-Virus-Scanned: by XS4ALL Virus Scanner X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hello Ken, > Can you remember the name of the web site where the layout was?, I did my > own layout but it was not all that successful when tested on 198kHz S/N > improved but no increase in level, although this may have been because I > wound two 20mH inductors for the power feed and may have been too greater > inter-winding capacitance, for use on VLF. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [194.109.24.27 listed in list.dnswl.org] X-Scan-Signature: 4ad5f3f1a9241b934aaa5d0e23c9dc57 Content-Type: text/plain; charset=iso-8859-15; format=flowed; delsp=yes Subject: Re: LF: BFQ19 SMT Collector pad Content-Transfer-Encoding: 7bit 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-SCOLL-SCORE: 0:2:383304352:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60c94f9d4e8119fe X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hello Ken, > Can you remember the name of the web site where the layout was?, I did my > own layout but it was not all that successful when tested on 198kHz S/N > improved but no increase in level, although this may have been because I > wound two 20mH inductors for the power feed and may have been too greater > inter-winding capacitance, for use on VLF. As the S/N ratio improved, I believe the antenna performed as it should. For use from 20 kHz and up a 100 uH inductor is OK. For 10 kHz and up, I use 1.2 mH But this is not really critical. 73, Roelof, pa0rdt