Return-Path: Received: from mtain-mc10.r1000.mx.aol.com (mtain-mc10.r1000.mx.aol.com [172.29.96.82]) by air-db03.mail.aol.com (v129.4) with ESMTP id MAILINDB033-86454c6499823dc; Thu, 12 Aug 2010 21:01:54 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mc10.r1000.mx.aol.com (Internet Inbound) with ESMTP id E82DE38000049; Thu, 12 Aug 2010 21:01:47 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OjiWi-0001Em-Hc for rs_out_1@blacksheep.org; Fri, 13 Aug 2010 01:53:40 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OjiWg-0001Ed-On for rsgb_lf_group@blacksheep.org; Fri, 13 Aug 2010 01:53:38 +0100 Received: from msa-k1.u-netsurf.ne.jp ([202.233.11.14]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from <7l1rll@dp.u-netsurf.ne.jp>) id 1OjiWZ-0004Ow-CF for rsgb_lf_group@blacksheep.org; Fri, 13 Aug 2010 01:53:38 +0100 Received: from [192.168.1.5] (d114.HkanagawaFL69.vectant.ne.jp [120.51.188.114]) by msa-k1.u-netsurf.ne.jp (Postfix) with ESMTP id 85B3B4B879 for ; Fri, 13 Aug 2010 09:53:17 +0900 (JST) From: Rick Wakatori <7l1rll@dp.u-netsurf.ne.jp> To: rsgb_lf_group@blacksheep.org In-Reply-To: References: <002801cb3a41$560b7db0$0401a8c0@xphd97xgq27nyf> Organization: RLL Date: Fri, 13 Aug 2010 09:53:18 +0900 Message-Id: <1281660798.6173.21.camel@vaio3rd> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Two Earth Electrodes Antenna Content-Type: text/plain 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=0.3 required=5.0 tests=FROM_HAS_MIXED_NUMS 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: 3039ac1d60524c64997b3ba8 X-AOL-IP: 193.82.116.20 X-AOL-SPF: domain : blacksheep.org SPF : none To avoid misunderstanding each, may I suggest rename "Earth Antenna" to "Two Earth Electrodes Antenna"? JA5FP, a friend of mine, wrote a literature on so called "Earth Surface Antenna" at bellow URL, but written in Japanese. There are some figures on direction path. http://www.h4.dion.ne.jp/~ja5fp/gant.pdf Notes: He has a US Callsign so that any question in English MAY BE accepted. 7L1RLL - Rick On Thu, 2010-08-12 at 18:44 +0100, Roger Lapthorn wrote: > Mal, > > Not so, but then you wouldn't want to know as you only transmit with > radio waves and mouth. > > 73s > Roger > > > > On 12 August 2010 18:10, mal hamilton wrote: > These so called Earth antennas are but bodged Beverage > systems, wires laying on or slightly above ground, staked at > one end as opposed to being terminated with a resistor or left > floating. Beverages or bodges are useful for Receiving in some > cases but USELESS for Transmitting. > An Antenna is an elevated wire raised as high as possible > above ground, an Earth is a spike driven into the > ground underneath your feet, basic radio theory. > G3KEV > > > > > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > http://www.youtube.com/user/g3xbm > G3XBM GQRP 1678 ISWL G11088