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[195.171.43.25]) by mx.google.com with ESMTP id a19si7124766wja.103.2014.03.09.06.09.43 for ; Sun, 09 Mar 2014 06:09:44 -0700 (PDT) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WMdGt-0003vb-0A for rs_out_1@blacksheep.org; Sun, 09 Mar 2014 12:56:03 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WMdGs-0003vS-DX for rsgb_lf_group@blacksheep.org; Sun, 09 Mar 2014 12:56:02 +0000 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.82) (envelope-from ) id 1WMdGq-0001JC-Nw for rsgb_lf_group@blacksheep.org; Sun, 09 Mar 2014 12:56:01 +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 1FD1D3273F4 for ; Sun, 9 Mar 2014 12:54:30 +0000 (GMT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by sb.abelian.org (Postfix) with ESMTP id 4790D28A026B for ; Sun, 9 Mar 2014 12:55:54 +0000 (UTC) Message-ID: <531C64DA.5050102@abelian.org> Date: Sun, 09 Mar 2014 12:55:54 +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 References: <2662DF5AA7FA416CBB09CDB90BBFF7B1@White> <016101cf39df$4f4c89a0$ede59ce0$@comcast.net>, <01dc01cf3a3f$86997bb0$93cc7310$@comcast.net>, <2FC5CAB271A6437CB35A5B100185CEDA@White> <025101cf3a52$e0925750$a1b705f0$@comcast.net> <7DB9DD5669FC4C648838510DCAC08AFB@White> <531A506E.9040103@abelian.org> <531A5C19.9060209@abelian.org> <02ba01cf3aa3$debaad50$9c3007f0$@comcast.net> <531AF126.2060600@abelian.org> <850A470A5B9F4483BED8B49D4791044A@White>,<531B1D0C.3070208@abelian.org> ,<531B4E01.7000304@abelian.org> <039f01cf3b72$bfa1db80$3ee59280$@comcast.net> <76F90E9771CA44F3981F679241E1A005@White> <03ca01cf3b92$eea24670$cbe6d350$@comcast.net> In-Reply-To: <03ca01cf3b92$eea24670$cbe6d350$@comcast.net> 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: I think the propagation at 29.5 has changed, even though NAA looks normal at 24kHz. There's a new pattern to the phase change: a fairly rapid reduction of phase lead by about 120 deg during the first 2 hours. Minimum phase at about 03:00 instead of 04:00 and after that a slow phase increase. [...] Content analysis details: (0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [217.72.171.49 listed in list.dnswl.org] 0.7 SPF_NEUTRAL SPF: sender does not match SPF record (neutral) X-Scan-Signature: 4e3b1488273adbbe9757d6bdd5adf219 Subject: Re: LF: Daytime 29.499 kHz Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS 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 I think the propagation at 29.5 has changed, even though NAA looks normal at 24kHz. There's a new pattern to the phase change: a fairly rapid reduction of phase lead by about 120 deg during the first 2 hours. Minimum phase at about 03:00 instead of 04:00 and after that a slow phase increase. Last night: http://abelian.org/vlf/tmp/29499_140309a.gif Previous night: http://abelian.org/vlf/tmp/29499_140308a.gif Two nights in a row we got that 120 phase shift in 2 hours. Other possibility is the loading coil tuning is changing as it warms up from a cold start. Signal last night from Dex on 29501 was also weaker than the other day http://abelian.org/vlf/tmp/29501_140309a.gif These opera transmissions might be a bit weaker than the Morse anyway because the duty cycle is less ?? Signal on 29499 declined during the night, NAA increased a little. -- Paul Nicholson --