Return-Path: Received: from mtain-mj03.r1000.mx.aol.com (mtain-mj03.r1000.mail.aol.com [172.21.164.87]) by air-me06.mail.aol.com (v129.4) with ESMTP id MAILINME062-8bb54c9c00181e7; Thu, 23 Sep 2010 21:34:16 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mj03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 0F3E838000095; Thu, 23 Sep 2010 21:34:14 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Oyx93-0007Dr-QO for rs_out_1@blacksheep.org; Fri, 24 Sep 2010 02:32:13 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Oyx8t-0007Di-GL for rsgb_lf_group@blacksheep.org; Fri, 24 Sep 2010 02:32:03 +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 1Oyx8r-0008I6-U0 for rsgb_lf_group@blacksheep.org; Fri, 24 Sep 2010 02:32:04 +0100 Received: from [192.168.1.5] (d236.HkanagawaFL50.vectant.ne.jp [122.103.145.236]) by msa-k1.u-netsurf.ne.jp (Postfix) with ESMTP id B4F084B9AC for ; Fri, 24 Sep 2010 10:31:56 +0900 (JST) From: Rick Wakatori <7l1rll@dp.u-netsurf.ne.jp> To: rsgb_lf_group@blacksheep.org In-Reply-To: <4C9BE44F.8090000@iup.uni-heidelberg.de> References: <1285283481.6317.9.camel@vaio3rd> <4C9BE44F.8090000@iup.uni-heidelberg.de> Organization: RLL Date: Fri, 24 Sep 2010 10:31:57 +0900 Message-Id: <1285291917.6317.31.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: Re: LF: Installation of Two Electrodes Earth Antenna Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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: 3039400c89a64c9c001606b1 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Stefan, I saw a QRSS signal came from 70km away was shown on his grabber so far. He said the gain of two electrodes earth antenna is -3dB comparison to 40m high of vertical LF antenna. The advantage is ease of installation, simple strucrure and strong in a storm. 73, 7L1RLL Rick On Fri, 2010-09-24 at 01:35 +0200, Stefan Sch=C3=A4fer wrote: > Hello Rick, >=20 > What is his best RX distance so far? Is he just monitoring 137 kHz or=20 > even the VLF band? >=20 > 73, Stefan/DK7FC >=20 > Am 24.09.2010 01:11, schrieb Rick Wakatori: > > An example of two electrodes earth antenna installation is now shown= at > > the JP1ODJ Grabber. See a shematic diagram and some photographs. > > http://www16.ocn.ne.jp/~macoco/grabber.html > > 73, > > 7L1RLL Rick > > > > > > > > =20 >=20