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[195.171.43.25]) by mx.google.com with ESMTP id in9si2974318pbd.29.2014.05.23.02.01.04 for ; Fri, 23 May 2014 02:01:05 -0700 (PDT) Received-SPF: none (google.com: owner-rsgb_lf_group@blacksheep.org does not designate permitted sender hosts) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: owner-rsgb_lf_group@blacksheep.org does not designate permitted sender hosts) smtp.mail=owner-rsgb_lf_group@blacksheep.org; dkim=pass header.i=@mx.aol.com; dmarc=pass (p=REJECT dis=NONE) header.from=aol.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WnlJe-0006U9-8G for rs_out_1@blacksheep.org; Fri, 23 May 2014 09:59:02 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WnlJG-0006U0-BQ for rsgb_lf_group@blacksheep.org; Fri, 23 May 2014 09:58:38 +0100 Received: from omr-d02.mx.aol.com ([205.188.109.194]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.82) (envelope-from ) id 1WnlJD-0008Kp-QL for rsgb_lf_group@blacksheep.org; Fri, 23 May 2014 09:58:36 +0100 Received: from mtaout-aae02.mx.aol.com (mtaout-aae02.mx.aol.com [172.27.1.98]) by omr-d02.mx.aol.com (Outbound Mail Relay) with ESMTP id 61A3C700000B1; Fri, 23 May 2014 04:58:32 -0400 (EDT) Received: from White (95-91-237-52-dynip.superkabel.de [95.91.237.52]) by mtaout-aae02.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 484E938000088; Fri, 23 May 2014 04:58:29 -0400 (EDT) Message-ID: From: "Markus Vester" To: , Date: Fri, 23 May 2014 10:58:27 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 12.0.1606 X-MimeOLE: Produced By Microsoft MimeOLE V12.0.1606 x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1400835512; bh=K4lLHO42oFfTH70rmqlEvh4Qz9uHKedpV4Z0xxm3oZs=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=yU6wU9jnDmXD0m389F9bqlGiIONGSKhmCcVUgq2jCJ+C/smHre6Bsob6tIUIbSBbo YN+YbH878imedUfeLl1wIQoO0c/LSc/JqdQCOan5/ygQ3QHVoXwIVlEEIUocmP+o4E fxZ0wJiHhrSUdZ79be9IBZ2oLHoFriYUw+h/+QIw= x-aol-sid: 3039ac1b0162537f0db50d40 X-AOL-IP: 95.91.237.52 X-Spam-Score: -0.6 (/) 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: Last night a pronounced fading pattern occured on my VLF dual-loop grabber. It was apparently caused by an area of fairly localized lightning activity, which passed over Nuernberg around 20 UT, and continued moving northward during the night. df6nm.bplaced.net/VLF/pictures/vlfwide_Blitzortung_140523_0400.png shows a colour-DF spectrogram, including an insert from the Blitzortung.org archive covering Germany from 22 to 04 UT. While the storm activity receded from about 200 to 500 km distance, the spectral maxima moved upwards, and their spacing increased from about 2 to 3 kHz. This would be consistent with superposition of groundwave and variable elevation angle skywave: When the source moves away, skywave becomes less steep, associated with a smaller geometrical delay difference and further spaced spectral features. [...] Content analysis details: (-0.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [205.188.109.194 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (markusvester[at]aol.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: c6a8ca7629fac3d35507e5a7fd3cbf17 Subject: VLF: Selective fading on moving storm spherics Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01CF7675.ECC5F040" 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=HTML_30_40,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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 Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_0003_01CF7675.ECC5F040 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Last night a pronounced fading pattern occured on my VLF dual-loop = grabber. It was apparently caused by an area of fairly localized = lightning activity, which passed over Nuernberg around 20 UT, and = continued moving northward during the night. df6nm.bplaced.net/VLF/pictures/vlfwide_Blitzortung_140523_0400.png shows = a colour-DF spectrogram, including an insert from the Blitzortung.org = archive covering Germany from 22 to 04 UT. While the storm activity = receded from about 200 to 500 km distance, the spectral maxima moved = upwards, and their spacing increased from about 2 to 3 kHz. This would = be consistent with superposition of groundwave and variable elevation = angle skywave: When the source moves away, skywave becomes less steep, = associated with a smaller geometrical delay difference and further = spaced spectral features. All the best, Markus (DF6NM) ------=_NextPart_000_0003_01CF7675.ECC5F040 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Last night a pronounced fading = pattern=20 occured on my VLF dual-loop grabber. It was apparently caused by an = area of=20 fairly localized lightning activity, which passed over Nuernberg = around=20 20 UT, and continued moving northward during the = night.
df6nm.bplaced.net/VLF/pictures/vlfwide_Blitzortung_140523_0400.= png shows a colour-DF spectrogram, = including an insert=20 from the Blitzortung.org archive covering Germany from 22 to 04=20 UT. While the storm activity receded from about 200 to 500 km=20 distance, the spectral maxima moved upwards, and their spacing = increased from about 2 to 3 kHz. This would be consistent=20 with superposition of groundwave and variable elevation angle=20 skywave: When the source moves away, skywave becomes less = steep,=20 associated with a smaller geometrical delay difference and further = spaced=20 spectral features.
 
All the best,
 
Markus (DF6NM)
 
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