Return-Path: Received: (qmail 5294 invoked from network); 14 Nov 2002 11:16:32 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 14 Nov 2002 11:16:32 -0000 Received: (qmail 14172 invoked by uid 10001); 14 Nov 2002 10:15:45 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 14 Nov 2002 10:15:45 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18CGzp-0000Vq-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 14 Nov 2002 10:13:13 +0000 Received: from [212.159.14.223] (helo=marstons.services.quay.plus.net) by post.thorcom.com with smtp (Exim 4.10) id 18CGzp-0000Vh-00 for rsgb_lf_group@blacksheep.org; Thu, 14 Nov 2002 10:13:13 +0000 Received: (qmail 11334 invoked by uid 10001); 14 Nov 2002 10:12:41 -0000 Received: from modem-48-62-60-62.vip.uk.com (HELO hugh) (62.60.62.48) by marstons.services.quay.plus.net with SMTP; 14 Nov 2002 10:12:41 -0000 Message-ID: <001101c28bc5$ec472960$0504210a@c.scope> From: "g6tmk" To: rsgb_lf_group@blacksheep.org References: <3DD35969.30941.58250D@localhost> <5.1.0.14.0.20021114102459.00aa7de0@POP3.freeler.nl> <002601c28bc3$707080e0$9d740450@oemcomputer> Date: Thu, 14 Nov 2002 10:08:27 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: Omnidirectional loops Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.5 required=5.0tests=REFERENCES,SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Mike wrote: > the same way as they do on VHF. Just use a > quarter-wavelength of coax!! or a 3/4 wavelength ... Or - you could spin the loop really fast. (with slip rings for the signal) For VHF DF they switch rapidly between four quarter-wave whips arranged in a square, which gives a sort of rotating aerial - you could use FETs to switch between the signals from two loops to do the same. But this would introduce a new frequency - which you could use as a beat frequency to resolve the cw. Hugh M0WYE