Return-Path: Received: from mtain-dl07.r1000.mx.aol.com (mtain-dl07.r1000.mx.aol.com [172.29.74.213]) by air-dc10.mail.aol.com (v129.4) with ESMTP id MAILINDC104-86a84d0882b71bb; Wed, 15 Dec 2010 03:56:23 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dl07.r1000.mx.aol.com (Internet Inbound) with ESMTP id 71FF238000087; Wed, 15 Dec 2010 03:56:21 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PSn8T-0006iV-EA for rs_out_1@blacksheep.org; Wed, 15 Dec 2010 08:54:57 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PSn8S-0006iM-MB for rsgb_lf_group@blacksheep.org; Wed, 15 Dec 2010 08:54:56 +0000 Received: from filter02.i-online.fr ([195.200.78.9]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PSn8Q-0002Qx-Ri for rsgb_lf_group@blacksheep.org; Wed, 15 Dec 2010 08:54:56 +0000 Received: from smtp.qtxt.dns-iol.com ([195.200.78.13]) by filter02.i-online.fr (IceWarp 10.0.7 (2010-02-10)) with ESMTP (SSL) id XUR38624 for ; Wed, 15 Dec 2010 09:54:24 +0100 Received: (qmail 24734 invoked by uid 507); 15 Dec 2010 09:54:42 +0100 Received: from unknown (HELO ?192.168.1.103?) (john.rabson@numeo.fr@217.67.155.178) by smtp.qtxt.dns-iol.com with SMTP; 15 Dec 2010 09:54:42 +0100 Mime-Version: 1.0 (Apple Message framework v1082) From: John Rabson In-Reply-To: <4D0245B6.3030801@iup.uni-heidelberg.de> Date: Wed, 15 Dec 2010 09:54:46 +0100 Message-Id: <2CB26774-2576-4C58-ACE0-430AC2DE82C0@numeo.fr> References: <4CF78D62.9070403@iup.uni-heidelberg.de> <4CF923F3.5070407@iup.uni-heidelberg.de> <4CFBCE7E.10906@abelian.netcom.co.uk> <4CFCCF3C.6060008@iup.uni-heidelberg.de> <7.0.1.0.2.20101206143323.04077008@vlf.it> <4CFE74C3.4070108@iup.uni-heidelberg.de> <20101207225250.GI2739@cs.utwente.nl> <4CFFF049.5090603@iup.uni-heidelberg.de> <20101208224806.GE26402@cs.utwente.nl> <4D0204EC.70701@iup.uni-heidelberg.de> <08FBDD4E2796435DA65570DB2F78946B@IBM7FFA209F07C> <4D0245B6.3030801@iup.uni-heidelberg.de> To: rsgb_lf_group@blacksheep.org X-Mailer: Apple Mail (2.1082) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Content-Type: text/plain; charset=us-ascii Subject: Re: VLF: DK7FC's 9th VLF kite experiment 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=0.0 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: 3039ac1d4ad54d0882b57027 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Stefan, > Another idea would be /p earth rods but there are a lot of stones in the= soil so it is difficult sometimes. We have the same problem with cave radios on 87kHz. In some places it was= impossible to drive a 1 metre rod, but 3 to six 30cm rods separated from= one another by at least 60cm worked as well as the 1 m rod would have don= e. 73 John F5VLF