Return-Path: Received: from rly-df11.mx.aol.com (rly-df11.mail.aol.com [172.19.156.24]) by air-df01.mail.aol.com (v123.4) with ESMTP id MAILINDF012-58d4a1ac2f03e1; Mon, 25 May 2009 12:10:43 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df11.mx.aol.com (v123.4) with ESMTP id MAILRELAYINDF116-58d4a1ac2f03e1; Mon, 25 May 2009 12:10:27 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1M8cjk-0004uv-IG for rs_out_1@blacksheep.org; Mon, 25 May 2009 17:09:16 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1M8cjk-0004um-7R for rsgb_lf_group@blacksheep.org; Mon, 25 May 2009 17:09:16 +0100 Received: from xsmtp04.mail2web.com ([168.144.250.226]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1M8cji-0007dD-C0 for rsgb_lf_group@blacksheep.org; Mon, 25 May 2009 17:09:15 +0100 Received: from [168.144.108.29] (helo=M2W029.mail2web.com) by xsmtp04.mail2web.com with smtp (Exim 4.63) (envelope-from ) id 1M8cjb-0006b3-Iq; Mon, 25 May 2009 12:09:09 -0400 Message-ID: <380-2200951251697569@M2W029.mail2web.com> X-Priority: 3 X-Originating-IP: 217.67.146.136 X-URL: http://mail2web.com/ From: "john.rabson@wanadoo.fr" To: rsgb_lf_group@blacksheep.org Date: Mon, 25 May 2009 12:09:07 -0400 MIME-Version: 1.0 X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Subject: Re: LF: G0MRF QRV X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=PRIORITY_NO_NAME 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 X-Mailer: Unknown (No Version) 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 =96 Enhanced email for the mobile individual based on Microsoft= =AE Exchange - http://link.mail2web.com/Personal/EnhancedEmail