Return-Path: X-Spam-DCC: paranoid 1233; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,SPF_PASS autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u4VEi2qr019191 for ; Tue, 31 May 2016 16:44:03 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1b7kko-0002em-TD for rs_out_1@blacksheep.org; Tue, 31 May 2016 15:34:46 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1b7kko-0002ed-5U for rsgb_lf_group@blacksheep.org; Tue, 31 May 2016 15:34:46 +0100 Received: from smarthost01a.mail.zen.net.uk ([212.23.1.1]) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1b7kkm-00070c-Km for rsgb_lf_group@blacksheep.org; Tue, 31 May 2016 15:34:45 +0100 Received: from [82.70.254.222] (helo=OfficeWin7.lan) by smarthost01a.mail.zen.net.uk with esmtp (Exim 4.80) (envelope-from ) id 1b7kkj-00062C-RX for rsgb_lf_group@blacksheep.org; Tue, 31 May 2016 14:34:41 +0000 Date: Tue, 31 May 2016 15:34:41 +0100 From: Chris Wilson Organization: Gatesgarth Developments X-Priority: 3 (Normal) Message-ID: <1685128417.20160531153441@chriswilson.tv> To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Originating-smarthost01a-IP: [82.70.254.222] X-Scan-Signature: 5c1f37c04fc013ebbc2288fd3791d043 Subject: LF: Earth modes and ebnaut? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 8194 31 May 2016 Assuming it's legal to transmit VLF using earth modes, and this seems an grey area, is anyone using Ebnaut for this communication method? if I tried to master the complexities of it, not being very mathematically astute, would anyone be likely to hear or look for a signal? I am in north Shropshire, in open countryside, with plenty of space for well separated earth rods, and the means to drive them very deep into a soild of loam top, about a meter deep, then into what is normally very wet sand as the water table here is high for most of the year. Thanks -- Best regards, Chris 2E0ILY mailto:chris@chriswilson.tv