Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mc06.r1000.mx.aol.com (Internet Inbound) with ESMTP id C3E9B3800004A; Fri, 16 Dec 2011 08:16:06 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RbXd8-0003bE-IU for rs_out_1@blacksheep.org; Fri, 16 Dec 2011 13:15:18 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RbXd7-0003b5-Ta for rsgb_lf_group@blacksheep.org; Fri, 16 Dec 2011 13:15:17 +0000 Received: from elasmtp-spurfowl.atl.sa.earthlink.net ([209.86.89.66]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RbXd4-0000zr-Fp for rsgb_lf_group@blacksheep.org; Fri, 16 Dec 2011 13:15:17 +0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=YDU79cR9kpwVf9q6vP58/aO1SmerzF+TGo5X3/jevsB6wdVcqrXueaDUgZ6jOQRP; h=Message-ID:Date:From:Reply-To:To:Subject:Mime-Version:Content-Type:Content-Transfer-Encoding:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [209.86.224.62] (helo=wamui-bucket.atl.sa.earthlink.net) by elasmtp-spurfowl.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1RbXcT-0004SA-9Z; Fri, 16 Dec 2011 08:14:37 -0500 Received: from 97.117.191.47 by webmail.c.earthlink.net with HTTP; Fri, 16 Dec 2011 08:14:36 -0500 Message-ID: <5189193.1324041277063.JavaMail.root@wamui-bucket.atl.sa.earthlink.net> Date: Fri, 16 Dec 2011 06:14:36 -0700 (GMT-07:00) From: Chris Trask To: rsgb_lf_group@blacksheep.org, rsgb_lf_group@blacksheep.org Mime-Version: 1.0 X-Mailer: EarthLink Zoo Mail 1.0 X-ELNK-Trace: b77fdb70683249914713efb067f9a722239a348a220c26093d3cc70ae1ad6a739527d53887a707d8a7ce0e8f8d31aa3f350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 209.86.224.62 DomainKey-Status: good (testing) X-Spam-Score: 0.9 (/) X-Spam-Report: autolearn=disabled,DNS_FROM_RFC_WHOIS=0.879 Subject: Re: LF: RE: Wellbrook Loop Content-Type: text/plain; charset=UTF-8 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: 0:2:335471296:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d604e4eeb44961206 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none > > I am looking for a suitable circuit to use with the blown > loops (they are not completely dead but have a serious loss > of sensitivity but disassembly is certain to destroy the > loop amplifier). I suspect it's not so easy to form a 1 > metre loop with aluminium tubing so the loops can be > re-used for experiments. > > I was thinking something along these lines: > > http://www.pm.keirle.com/3_radio/hf_loop_ant/hf_loop_ant.htm > > http://www.ik4hdq.net/doc/testi/smlloop.pdf > > http://www.vlf.it/looptheo7/looptheo7.htm > > http://www.vlf.it/lowfloop/lowfloop.htm > You might want to add this to your list of suitable alternatives: http://www.home.earthlink.net/~christrask/Paper009.html Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/