Return-Path: Received: from mtain-dh12.r1000.mx.aol.com (mtain-dh12.r1000.mx.aol.com [172.29.65.32]) by air-me02.mail.aol.com (v129.4) with ESMTP id MAILINME024-8ba74c123cf49c; Fri, 11 Jun 2010 09:41:08 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dh12.r1000.mx.aol.com (Internet Inbound) with ESMTP id 75EE23800020E; Fri, 11 Jun 2010 09:41:05 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ON4SP-0003bl-DV for rs_out_1@blacksheep.org; Fri, 11 Jun 2010 14:39:37 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ON4SP-0003bc-1L for rsgb_lf_group@blacksheep.org; Fri, 11 Jun 2010 14:39:37 +0100 Received: from out1.ip06ir2.opaltelecom.net ([62.24.128.242]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1ON4SK-0004OO-Hb for rsgb_lf_group@blacksheep.org; Fri, 11 Jun 2010 14:39:37 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av8EABbZEUxOk8bA/2dsb2JhbACPMwOPRXG/F4UYBA X-IronPort-AV: E=Sophos;i="4.53,403,1272841200"; d="scan'208,217";a="461037961" Received: from unknown (HELO xphd97xgq27nyf) ([78.147.198.192]) by out1.ip06ir2.opaltelecom.net with SMTP; 11 Jun 2010 14:39:24 +0100 Message-ID: <002401cb096b$7d950560$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: "rsgb" Date: Fri, 11 Jun 2010 14:39:17 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: LF/VLF Content-Type: multipart/alternative; boundary="----=_NextPart_000_0021_01CB0973.DF2516F0" 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=HTML_30_40,HTML_MESSAGE 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-global-disposition: G x-aol-sid: 3039ac1d41204c123cf15473 X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0021_01CB0973.DF2516F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable All Forget about loops, ground rod induction etc if you want to radiate a= dx signal.The average person could shout and be heard further. A mech= anical alert/fire siren can be heard several miles away by ear. For serious distance DX on vlf a vertical configured antenna is the= only solution, ie loaded inv L, T ant and some insulated ground radia= ls as long as possible. one earth spike at the base of the vertical drop wire connected to rad= ials. This is the basic approach and can be fine tuned later once you are ma= king progress and being heard/seen a few hundred kilometres away. 73 de mal/g3kev ------=_NextPart_000_0021_01CB0973.DF2516F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

All

Forget about loops, ground rod induct= ion etc if you=20 want to radiate a dx signal.The average person could shout and be hear= d further.=20 A mechanical alert/fire siren can be heard several miles away by=20 ear.

For serious distance DX on vlf a= vertical=20 configured antenna is the only solution, ie loaded inv L,= T ant and=20 some insulated ground radials as long as possible.

one earth spike at the base of the ve= rtical drop=20 wire connected to radials.

This is the basic approach and can be= fine tuned=20 later once you are making progress and being heard/seen a few hundred= kilometres=20 away.

73 de mal/g3kev

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