Return-Path: Received: from rly-df05.mx.aol.com (rly-df05.mail.aol.com [172.19.156.18]) by air-df03.mail.aol.com (v123.4) with ESMTP id MAILINDF033-54f4a1c1bc1353; Tue, 26 May 2009 12:41:50 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df05.mx.aol.com (v123.4) with ESMTP id MAILRELAYINDF054-54f4a1c1bc1353; Tue, 26 May 2009 12:41:39 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1M8zh1-0006Wq-Uf for rs_out_1@blacksheep.org; Tue, 26 May 2009 17:39:59 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1M8zh1-0006Wh-Hc for rsgb_lf_group@blacksheep.org; Tue, 26 May 2009 17:39:59 +0100 Received: from ttsmtp-3.cpwnetworks.com ([62.24.128.244] helo=ttsmtp.cpwnetworks.com) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1M8zgz-0004Fc-2Z for rsgb_lf_group@blacksheep.org; Tue, 26 May 2009 17:39:59 +0100 X-Path: TalkTalk-smtp X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArsEAMe3G0pcGmL1/2dsb2JhbACEVcpLhAsF Received: from unknown (HELO mal769a60aa920) ([92.26.98.245]) by ttsmtp.cpwnetworks.com with SMTP; 26 May 2009 17:39:43 +0100 Message-ID: <004501c9de20$928f89d0$0301a8c0@mal769a60aa920> From: "mal hamilton" To: References: <380-2200951251697569@M2W029.mail2web.com> Date: Tue, 26 May 2009 17:39:43 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: G0MRF QRV Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 8bit 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-IP: 193.82.116.20 The only time one should be below ground is when the said person has expired. To notify OFCOM under these circumstances could be difficult (:- G3KEV ----- Original Message ----- From: To: Sent: Monday, May 25, 2009 5:09 PM Subject: Re: LF: G0MRF QRV David, Try putting the dipole on the ground and earthing both ends as well as circumstances permit. In effect you will have a large vertical loop although it will be underground. This technique is the basis of much cave radio communication, and I seem to recall that one of the earliest 73 kHz above-ground experimenters (now a Silent Key) usesd this technique to set one of the distance records on that band. By the way, does the 500 kHz NoV require you to tell the authorities whether you will be working above or below ground, as was the case on 73? John F5VLF -------------------------------------------------------------------- mail2web.com - Enhanced email for the mobile individual based on Microsoft® Exchange - http://link.mail2web.com/Personal/EnhancedEmail -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.37/2131 - Release Date: 05/24/09 07:09:00