Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc02.r1000.mx.aol.com (Internet Inbound) with ESMTP id B183B380000AA; Tue, 17 Jul 2012 14:12:46 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SrCFR-00079q-7w for rs_out_1@blacksheep.org; Tue, 17 Jul 2012 19:11:49 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SrCFQ-00079h-M8 for rsgb_lf_group@blacksheep.org; Tue, 17 Jul 2012 19:11:48 +0100 Received: from nm8-vm0.bullet.mail.ird.yahoo.com ([77.238.189.203]) by relay1.thorcom.net with smtp (Exim 4.77) (envelope-from ) id 1SrCFO-0003DZ-CM for rsgb_lf_group@blacksheep.org; Tue, 17 Jul 2012 19:11:47 +0100 Received: from [77.238.189.54] by nm8.bullet.mail.ird.yahoo.com with NNFMP; 17 Jul 2012 18:11:45 -0000 Received: from [212.82.108.227] by tm7.bullet.mail.ird.yahoo.com with NNFMP; 17 Jul 2012 18:11:45 -0000 Received: from [127.0.0.1] by omp1004.bt.mail.ird.yahoo.com with NNFMP; 17 Jul 2012 18:11:45 -0000 X-Yahoo-Newman-Id: 414676.56779.bm@omp1004.bt.mail.ird.yahoo.com Received: (qmail 18465 invoked from network); 17 Jul 2012 18:11:45 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btinternet.com; h=DKIM-Signature:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-Antivirus:X-Antivirus-Status; b=WGyFpACf628ZXvijEAGYw2O+oRQy+8BhvOrRLUfABCzjKGipIklwEIDfhYovmDtY74Ug3JZ8FVD6+0pqei5oTvkj37Ji5ZrQz6tqdBE7afv6yCvI+QuV8sU2JzZaqSGpFTTB9GnqVKexHDr7fLOH3BTNfgGsMczODQ3i0fzoyB8= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btinternet.com; s=s1024; t=1342548705; bh=DUZS9Xsh4y6kfjLsKm7fqLWsko1eijpgRyGFWpxofLM=; h=X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-Antivirus:X-Antivirus-Status; b=XzFR1Wp6e23CbKnovs4QfygCY4RmwjLrB3YxvBC5dKj5mpbewIwon+FGeIQbXGJ+N2HObs+9PEZTTCRIvNWQjpviz0m9m/HZwu3VWzqo7VhOur0K4xlMMCT7wI9Vz/+Uo2POJXNidGAa4b7ZvG+HRFDpTEs/mvCl3rExLZXMunI= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: fdu3lBAVM1kMZaSWbAcmUbmuLW9LQwTwzLXtnUQtPWe9N8T 6LQQkqSgFKoxGVgFoxwUNDXqOl1DmZGIDBvQ6x5YNMqDe3gY_WMYdgFygcPt cb6NikjAoNGsyWdbr4ZTuPF5skAoEwNCOfbbR4Qk55y7yXsiUnq4rAOUlamD sdQHyk8SYiJ3jKFlMp9M3gKkcUrqxUSh7g64Cqrorcs8hKzJWzVc2Ycfwekr 5NyERNqcc1ifs3Co.2RSHpkTCRFc3gqfsoeHuCkeCGZjCMx3drAwvP0fj01q NVBbwgocQbd.5XpxQtC6l7v2wJqFZtJ1KYYNVTz1Y_HuPtRgxGvBpQVySMVc t6TR5OYQukWrKDHzWJmQq9TWhjAmrvfifISFiz3tahEn7FVvNoufRWJbr7Pc bSfvE9cqYGdPMGWOuAwQ- X-Yahoo-SMTP: fpz.2VeswBBs59bVshRPmMN51lcO2lgFRIvE4XTqE8dRwOxd70E- Received: from gnat (alan.melia@86.128.171.80 with login) by smtp826.mail.ird.yahoo.com with SMTP; 17 Jul 2012 11:11:44 -0700 PDT Message-ID: From: "Alan Melia" To: References: <4F54B686CBDD4096901F642791F2E253@gnat> Date: Tue, 17 Jul 2012 19:11:47 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 X-Antivirus: avast! (VPS 120717-0, 17/07/2012), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.0 (/) 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: Hi Roelof will try to answer ALL the question this thing :-)) There can be a latitude dependent delay. Stations like Laurence KL1X and Scott VE7TIL will see the effect almost immediately it can take a day of more sometimes to affect more southerly paths. I have plots of an impact just before sunset and a slow returning (to normal) signal level at 5dB per hour. (I think this may be an indication of the steady decay of the hot electrons during the darkness period) Alan [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [77.238.189.203 listed in list.dnswl.org] 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-Scan-Signature: f62c7cf8eeb8e5a327b71719e9bffff1 Subject: LF: Re: Kyoto Dst question Content-Type: text/plain; format=flowed; charset="iso-8859-15"; reply-type=response 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=1.6 required=5.0 tests=FORGED_MUA_OUTLOOK 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-SCORE: 0:2:448552288:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d022.2 ; domain : btinternet.com DKIM : fail x-aol-sid: 3039ac1d40825005ab1e0b63 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Roelof will try to answer ALL the question this thing :-)) There can be a latitude dependent delay. Stations like Laurence KL1X and Scott VE7TIL will see the effect almost immediately it can take a day of more sometimes to affect more southerly paths. I have plots of an impact just before sunset and a slow returning (to normal) signal level at 5dB per hour. (I think this may be an indication of the steady decay of the hot electrons during the darkness period) Alan ----- Original Message ----- From: "Roelof Bakker" To: Sent: Tuesday, July 17, 2012 4:41 PM Subject: LF: Kyoto Dst question > Hello Alan (G3NYK), > > Looking at the Kyoto website and my NAVTEX log on 518 kHz, there is > clearly a strong correlation between Dst values around 0 and good T/A > reception. > > I wonder if a significant drop in the Dst value is followed by an > immediate change in propagation, or that there is some time lag? > > 73, > Roelof, pa0rdt >