Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh05.r1000.mx.aol.com (Internet Inbound) with ESMTP id C093D380000B0; Sat, 23 Jun 2012 11:38:19 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SiSOm-0001yv-8c for rs_out_1@blacksheep.org; Sat, 23 Jun 2012 16:37:20 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SiSOl-0001ym-IW for rsgb_lf_group@blacksheep.org; Sat, 23 Jun 2012 16:37:19 +0100 Received: from smtp-out11.han.skanova.net ([195.67.226.200]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1SiSOj-0006MS-Nm for rsgb_lf_group@blacksheep.org; Sat, 23 Jun 2012 16:37:18 +0100 Received: from [192.168.1.37] (217.211.186.120) by smtp-out11.han.skanova.net (8.5.133) (authenticated as u33233109) id 4FA80EAF0104A088 for rsgb_lf_group@blacksheep.org; Sat, 23 Jun 2012 17:37:16 +0200 Message-ID: <4FE5E2B1.90704@telia.com> Date: Sat, 23 Jun 2012 17:37:21 +0200 From: Johan Bodin User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <4E6E0AD4.4838.465714@mike.dennison.ntlworld.com> <1315833746.18312.YahooMailNeo@web29503.mail.ird.yahoo.com> <1340350943.68546.YahooMailNeo@web29504.mail.ird.yahoo.com> In-Reply-To: <1340350943.68546.YahooMailNeo@web29504.mail.ird.yahoo.com> X-Enigmail-Version: 1.4.2 X-Spam-Score: -0.7 (/) 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: Hi Daniele, you may get some inspiration from LZ1AQ's loop amplifier design. http://www.lz1aq.signacor.com/docs/wsml/wideband-active-sm-loop-antenna.htm [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [195.67.226.200 listed in list.dnswl.org] X-Scan-Signature: 4ad5f3f1a9241b934aaa5d0e23c9dc57 Subject: Re: LF: Ferrite broadband (LF-MF) antenna? Content-Type: text/plain; charset=ISO-8859-1 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: 0:2:493831776:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60d94fe5e2eb155c X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Daniele, you may get some inspiration from LZ1AQ's loop amplifier design. http://www.lz1aq.signacor.com/docs/wsml/wideband-active-sm-loop-antenna.htm 73 Johan SM6LKM ---- Daniele Tincani wrote: > so what I would appreciate some suggestions about > is the required low-impedance amplifier, similar to those used in > air-core broadband loops, if it does make sense of course. Any ideas?