Return-Path: Received: from mtain-mh03.r1000.mx.aol.com (mtain-mh03.r1000.mx.aol.com [172.29.96.215]) by air-mb06.mail.aol.com (v129.10) with ESMTP id MAILINMB061-a6fc4de1196612c; Sat, 28 May 2011 11:48:54 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh03.r1000.mx.aol.com (Internet Inbound) with ESMTP id DC0DA380000A2; Sat, 28 May 2011 11:48:52 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QQLji-0000xL-6D for rs_out_1@blacksheep.org; Sat, 28 May 2011 16:47:34 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QQLjh-0000xC-Gb for rsgb_lf_group@blacksheep.org; Sat, 28 May 2011 16:47:33 +0100 Received: from out1.ip08ir2.opaltelecom.net ([62.24.128.244]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QQLjf-00033V-3j for rsgb_lf_group@blacksheep.org; Sat, 28 May 2011 16:47:33 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av8EAJoX4U1cHY9c/2dsb2JhbABVk1IDkmp3p2CeCYYeBJUqikA X-IronPort-AV: E=Sophos;i="4.65,286,1304290800"; d="scan'208,217";a="490699546" Received: from unknown (HELO xphd97xgq27nyf) ([92.29.143.92]) by out1.ip08ir2.opaltelecom.net with SMTP; 28 May 2011 16:47:24 +0100 Message-ID: <001c01cc1d4e$8874eac0$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: "rsgb" Date: Sat, 28 May 2011 16:47:21 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: ELF Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01CC1D56.E9E120A0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE 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: 3039ac1d60d74de119642318 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none ------=_NextPart_000_0019_01CC1D56.E9E120A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ELF I have been observing the spectrum 0 - 200 Hertz. Very clear area from 0 - 42 Hz Carrier at 50 Hz mains, clean -73 dB but what appears to be data acty= from 50 - 104 Hz with 2nd mains harmonic at 100 Hz -114dB clean and beyond that no discernable mains harmonics which is good. Al= l mains services in this area are underground and no mains high voltag= e grid in the area.=20 No sign of any earth wobble or magnetic reversal on the Shumann freque= ncies. de mal/g3kev =20 ------=_NextPart_000_0019_01CC1D56.E9E120A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

ELF

I have been observing the spectrum 0 - 200=20 Hertz.

Very clear area from 0 - 42 Hz

Carrier at 50 Hz mains, clean -73 dB but what= appears to=20 be data acty from 50 - 104 Hz with 2nd mains harmonic at 100 Hz=20 -114dB

clean and beyond that no discernable mains har= monics which=20 is good. All mains services in this area are underground and no= mains high=20 voltage grid in the area.

No sign of any earth wobble or magnetic= =20 reversal on the Shumann frequencies.

de mal/g3kev

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