Return-Path: X-Spam-DCC: paranoid 1170; 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=-0.8 required=5.0 tests=BAYES_00,FORGED_RCVD_HELO, RATWARE_GECKO_BUILD 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 sBHHWkAt024343 for ; Wed, 17 Dec 2014 18:32:46 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Y1IM5-0000sg-Df for rs_out_1@blacksheep.org; Wed, 17 Dec 2014 17:25:45 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Y1IM5-0000sX-5E for rsgb_lf_group@blacksheep.org; Wed, 17 Dec 2014 17:25:45 +0000 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.84) (envelope-from ) id 1Y1IM3-0000my-2M for rsgb_lf_group@blacksheep.org; Wed, 17 Dec 2014 17:25:44 +0000 Received: from sb.abelian.org (i-194-106-52-83.freedom2surf.net [194.106.52.83]) by parrot.netcom.co.uk (Postfix) with ESMTP id 018973273A3; Wed, 17 Dec 2014 17:24:45 +0000 (GMT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by sb.abelian.org (Postfix) with ESMTP id CAC1D28A0EAC; Wed, 17 Dec 2014 17:25:41 +0000 (UTC) Message-ID: <5491BC95.1070505@abelian.org> Date: Wed, 17 Dec 2014 17:25:41 +0000 From: Paul Nicholson User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org CC: Michael Smith References: <548FC502.6000409@abelian.org> <54905B9D.8000400@abelian.org> In-Reply-To: <54905B9D.8000400@abelian.org> X-Scan-Signature: 49f0f587e44d6711c57b8a4e950ba850 Subject: Re: VLF: W4DEX to DL4YHF at 8822 Hz Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 1512 Another long transmission last night from Dex. Signal and noise at Forest, VA - KE4RJQ at range 254km http://abelian.org/vlf/tmp/141217a.png The drop-outs at 03:20 and 08:00 were caused by interruptions of the stream from Forest. This very low noise rx uses an optical link for isolation from domestic/mains interference. You can read about it in this article http://www.vlf.it/smith1/opticalink.html on Renato Romero's web site. Europe S/N ratios and phase in 278uHz bandwidth Cumiana Bielefeld Todmorden 7173km 6918km 6194km 21:00 -9.1dB -2.2dB 4.7dB 154.4 22:00 1.7dB 80.9 -8.3dB 9.8dB 166.4 23:00 2.0dB 92.8 4.7dB 114.2 11.8dB 89.9 00:00 2.8dB 15.4 3.7dB 60.0 11.4dB 115.7 01:00 -4.0dB 6.9dB 84.0 9.8dB 103.2 02:00 -8.2dB 0.6dB 11.5dB 86.3 03:00 7.5dB -23.5 0.5dB 8.6dB 147.1 04:00 5.2dB 82.4 -0.3dB 10.5dB 127.1 05:00 6.5dB 79.2 5.9dB 127.4 13.8dB 117.3 06:00 6.0dB 38.7 6.1dB 138.1 13.1dB 113.2 07:00 1.4dB 7.3dB 68.6 11.9dB 125.5 08:00 0.9dB 5.2dB 175.1 14.6dB 130.0 09:00 -3.9dB 4.5dB 92.4 9.9dB 154.7 10:00 4.2db -107.9 7.3dB -155.7 11:00 3.4dB -33.3 Signal in Todmorden was its regular strength, http://abelian.org/vlf/tmp/141217b.gif and is good enough to come out well on a spectrogram http://abelian.org/vlf/tmp/141217c.png Unfortunately reception further into Europe was poor last night with barely a glimmer of signal - not enough to make any sort of plot I'm afraid. -- Paul Nicholson --