Return-Path: Received: (qmail 28378 invoked from network); 3 Apr 2001 22:16:09 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by 10.226.25.101 with SMTP; 3 Apr 2001 22:16:09 -0000 Received: (qmail 18846 invoked from network); 3 Apr 2001 22:16:00 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 3 Apr 2001 22:16:00 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14kYzQ-0002Cd-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 03 Apr 2001 23:09:28 +0100 Received: from amersham.mail.uk.easynet.net ([195.40.1.45]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14kYzP-0002CY-00 for rsgb_lf_group@blacksheep.org; Tue, 03 Apr 2001 23:09:27 +0100 Received: from ericadodd (tnt-18-191.easynet.co.uk [212.134.224.191]) by amersham.mail.uk.easynet.net (Postfix) with SMTP id 13B9F17417 for ; Tue, 3 Apr 2001 23:08:58 +0100 (BST) Message-ID: <000901c0bc8a$d0d802a0$bfe086d4@ericadodd> From: "g3ldo" To: rsgb_lf_group@blacksheep.org Subject: LF: LF Antennas Date: Tue, 3 Apr 2001 23:09:02 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: In an attempt to improve the reception on 136kHz by cutting down the Loran racket I have, over a period of time, been experimenting with LF receiving loops. I now have one that works really well. It was used for the first time in a 'reverse' crossband (136kHz/3.5MHz) QSO with VE1ZZ on 21st Feb. Details of the construction and pictures are on the site shown below - click 'An efficient LF receiving loop'. Recently, Mike, G3XDV, elevated the loading coil on his 136kHz Marconi. This reduced the antenna current but apparently improved the efficiency. I am researching material for a mobile handbook and was looking for a graphic way of illustrating why elevating the loading coil improves efficiency. What I have written is shown and illustrated on the site (I am sure that it must have been all done before!). Click 'Discussion'. Any comments direct or via the reflector welcome. Regards, Peter, G3LDO e-mail Web