Return-Path: Received: from mtain-df03.r1000.mx.aol.com (mtain-df03.r1000.mx.aol.com [172.29.64.215]) by air-di04.mail.aol.com (v129.4) with ESMTP id MAILINDI042-eac34d0802578c; Tue, 14 Dec 2010 18:48:39 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 20B2C380000BE; Tue, 14 Dec 2010 18:48:38 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PSeaw-0000ia-GT for rs_out_1@blacksheep.org; Tue, 14 Dec 2010 23:47:46 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PSeaw-0000iR-1v for rsgb_lf_group@blacksheep.org; Tue, 14 Dec 2010 23:47:46 +0000 Received: from out1.ip04ir2.opaltelecom.net ([62.24.128.240]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PSeau-0008Ou-Af for rsgb_lf_group@blacksheep.org; Tue, 14 Dec 2010 23:47:46 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvwHAEWRB01cHYFG/2dsb2JhbACDXoRBjVOOKXiwT5BugSGDNXQEjis X-IronPort-AV: E=Sophos;i="4.59,345,1288569600"; d="scan'208";a="316197575" Received: from unknown (HELO xphd97xgq27nyf) ([92.29.129.70]) by out1.ip04ir2.opaltelecom.net with SMTP; 14 Dec 2010 23:47:38 +0000 Message-ID: <003701cb9be9$46bb5b00$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <1292360809.3356.74.camel@gerhard-desktop> Date: Tue, 14 Dec 2010 23:47:29 -0000 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,none Subject: LF: Re: Earth Antennnas - General question Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit 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-global-disposition: G x-aol-sid: 3039ac1d40d74d0802541cbc X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : temperror Gerhard Yes the antennas described by Stefan and Roger and others are of the LOSSY variety and similar to Beverages. I have made this observation before. I cannot see how these elevated antennas can be considered Earth Mode since they propagate a signal into the ether to be received at a distance by another elevated antenna several metres above ground. de mal/g3kev ----- Original Message ----- From: "Gerhard Hickl" To: Sent: Tuesday, December 14, 2010 9:06 PM Subject: LF: Earth Antennnas - General question > Hi all ! > > I was following the whole discussion about the so called "earth-mode" > and the used antennas with interest. > > Mal told us that he sees those antennas as "lossy dipoles" while others > stated they are "true" earth-antennas. > > I don't have the theoretical background to tell you why but out of my > feeling, all those antennas described remind me on the well-known > Beverage-Antenna system. > > Two wires of any layout, diameter, height and length terminated by a > "resistor"...the soil. > > Could that be a way we could look at this kind of antenna? > And if so, what would it explain? > > 73 > OE3GHB > Gerhard > > > > > > >