Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 21C43380000FD; Sat, 16 Feb 2013 16:19:43 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U6p9p-0006LX-PX for rs_out_1@blacksheep.org; Sat, 16 Feb 2013 21:18:53 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U6p9p-0006LO-DA for rsgb_lf_group@blacksheep.org; Sat, 16 Feb 2013 21:18:53 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1U6p9n-0008Qe-NW for rsgb_lf_group@blacksheep.org; Sat, 16 Feb 2013 21:18:52 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id r1GLIpcu001935 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 16 Feb 2013 22:18:51 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id r1GLIkk9014034 for ; Sat, 16 Feb 2013 22:18:46 +0100 Message-ID: <511FF7B6.7040309@iup.uni-heidelberg.de> Date: Sat, 16 Feb 2013 22:18:46 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= 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: <815B99E40E894F25830C0490ED4D418B@AGB> In-Reply-To: <815B99E40E894F25830C0490ED4D418B@AGB> X-Spam-Score: -2.3 (--) 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: Am 16.02.2013 13:03, schrieb Graham: > [...] > Unless its going into a glass display case .. then it will be > (loaded rlc) large Q values are not too helpful :) My LF coil Q is roughly 1000 and i feel pretty fine with it. It is neither expensive nor difficult to build an automatic variometer for the coil. With that automatic variometer, the BW of the antenna is virtual infinity, at least for narrow modes. [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [129.206.210.211 listed in list.dnswl.org] -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: 925300287489a1d7272e62b121c112aa Subject: Re: LF: Re: how to increase the Q of my loading coil? Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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-sid: 3039ac1d4085511ff7ef15da X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Am 16.02.2013 13:03, schrieb Graham: > [...] > Unless its going into a glass display case .. then it will be > (loaded rlc) large Q values are not too helpful :) My LF coil Q is roughly 1000 and i feel pretty fine with it. It is neither expensive nor difficult to build an automatic variometer for the coil. With that automatic variometer, the BW of the antenna is virtual infinity, at least for narrow modes. 73, Stefan/DK7FC