Return-Path: Received: (qmail 1780 invoked from network); 5 Oct 2001 07:20:46 -0000 Received: from unknown (HELO warrior-inbound.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 5 Oct 2001 07:20:46 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 24891 invoked from network); 5 Oct 2001 07:18:38 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 5 Oct 2001 07:18:38 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15pP8F-0005Cf-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 05 Oct 2001 08:10:51 +0100 Received: from k2.pncl.co.uk ([212.35.226.183]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15pP8E-0005Ca-00 for rsgb_lf_group@blacksheep.org; Fri, 05 Oct 2001 08:10:50 +0100 Received: from 233.pncl.co.uk (251.235.35.212.in-addr.arpa.ip-pool.cix.co.uk [212.35.235.251]) by k2.pncl.co.uk (8.11.3/8.11.3) with ESMTP id f957AAF28780 for ; Fri, 5 Oct 2001 08:10:11 +0100 Message-ID: <5.0.2.1.2.20011005081023.00a1e120@mail.pncl.co.uk> X-Sender: blanch@mail.pncl.co.uk (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 5.0.2 Date: Fri, 05 Oct 2001 08:16:22 +0100 To: rsgb_lf_group@blacksheep.org From: "Walter Blanchard" Subject: Re: LF: Which effect is this? In-reply-to: <13d.267907d.28ee0c5c@aol.com> MIME-Version: 1.0 Content-Type: text/html; charset=windows-1252 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Content-transfer-encoding: 8bit At 20:02 04/10/01 Thursday, Wolf wrote:

I guess if the car had a ferrite antenna like many of the old tabletop radios, things would be very different.

Yes. We found many years ago that ferrite loops worked fine under bridges etc with the Loran-C system. They are also much better in high electrostatic fields i.e. thunderstorms.The problem is they are directional so you have to have two crossed loops with phase matching. I have such an antenna on my car now for picking up the 300 kHz DGPS transmitters.

Walter G3JKV.