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[86.14.226.229]) by mx.google.com with ESMTPS id w5sm13061804wif.11.2013.01.07.09.36.56 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 07 Jan 2013 09:36:56 -0800 (PST) References: <52591013-FAE4-489B-8137-61A91BF26751@gmail.com> <50EAFE96.6000400@psk31.plus.com> From: Roger Lapthorn X-Mailer: iPod Mail (10A523) In-Reply-To: <50EAFE96.6000400@psk31.plus.com> Message-Id: Date: Mon, 7 Jan 2013 17:36:52 +0000 To: g3zjo , "rsgb_lf_group@blacksheep.org" , rsgb_lf_group@yahoogroups.co.uk Mime-Version: 1.0 (1.0) X-Spam-Score: -0.7 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Just fed everything from a 12V battery (no mains grounds) and result unchanged. It STILL works. Now QRT until late this evening as my Internet signal in the rear study where set up temporarily is too weak to reliably sync time without all the doors open! After about 10.30 I'll try again when we go to bed and leave all internal doors open, HI. [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [74.125.82.173 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (rogerlapthorn[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 4b5b5ebe37a4c4f430f59bc35c1947b0 Subject: Re: LF: More earth electrodes tests at 472kHz Content-Type: text/plain; charset=us-ascii 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-SCOLL-AUTHENTICATION: mtain-mg03.r1000.mx.aol.com ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d60cb50eb0f72730a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Just fed everything from a 12V battery (no mains grounds) and result unchang= ed. It STILL works.=20 Now QRT until late this evening as my Internet signal in the rear study wher= e set up temporarily is too weak to reliably sync time without all the doors= open! After about 10.30 I'll try again when we go to bed and leave all inte= rnal doors open, HI.=20 Fascinating results.=20 73s Roger G3XBM =20 On 7 Jan 2013, at 16:57, g3zjo wrote: > Yes still a good signal. >=20 > I take it there is no Earth connection via the TX chassis - PSU route eith= er. >=20 > You know I am pretty sure that round here I would get dreadful hum from 2 e= arth stakes. > When I was the other side of town and much younger I melted the innards of= my AVO Multiminor measuring between two earths. Also I ran a 6 Volt fan and= charged batteries via a diode between Neutral and an earth spike. The fan w= ould go so fast on a Sunday morning (electric cookers) that it would take of= f. >=20 > Eddie >=20 >=20 >=20 > On 07/01/2013 16:36, Roger Lapthorn wrote: >> Since 1608gmt I have been WSPRing with an even shorter earth electrode "a= ntenna" ( baseline about 15m) with BOTH ends connected to ground rods in the= soil. Max connecting wire height still 1.5m. Yesterday I used the house pip= es as one ground. >>=20 >> Initial tests suggest reports are almost identical, suggesting the true "= loop in the ground" hypothesis rather than propagation aided in any way by p= ipes. This is NOT the case at VLF. >>=20 >> Most fascinating that this tiny "non antenna" works at all. >>=20 >> 73s >> Roger G3XBM >=20