Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mb02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 8E10F380000BD; Wed, 4 Jul 2012 14:13:35 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SmU4A-0004sX-6O for rs_out_1@blacksheep.org; Wed, 04 Jul 2012 19:12:42 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SmU49-0004sO-Lv for rsgb_lf_group@blacksheep.org; Wed, 04 Jul 2012 19:12:41 +0100 Received: from out1.ip04ir2.opaltelecom.net ([62.24.128.240]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1SmU47-00034t-PK for rsgb_lf_group@blacksheep.org; Wed, 04 Jul 2012 19:12:40 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArwLAKyG9E9Ok8AH/2dsb2JhbABFtX8CAoEpgQiCEwUBAQQBCAEBA0kCJgYBAQMFAgEDEQQBAQolFAEEGgYWCAYTCgECAgEBh3UJB7pFizlHXIF4gxwDjU+Xa4Jf X-IronPort-AV: E=Sophos;i="4.77,525,1336345200"; d="scan'208";a="378009522" Received: from host-78-147-192-7.as13285.net (HELO xphd97xgq27nyf) ([78.147.192.7]) by out1.ip04ir2.opaltelecom.net with SMTP; 04 Jul 2012 19:12:38 +0100 Message-ID: <003901cd5a10$94ac2a60$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <4FF4744A.1020404@legal-medicine.de> Date: Wed, 4 Jul 2012 18:12:32 -0000 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: 3.1 (+++) 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: Something to be said for Satellite Communications. !! ----- Original Message ----- From: "pws" To: Sent: Wednesday, July 04, 2012 4:50 PM Subject: LF: Thunderstorms and LF-Propagation Disturbances [...] Content analysis details: (3.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [62.24.128.240 listed in list.dnswl.org] 0.7 FSL_XM_419 Old OE version in X-Mailer only seen in 419 spam -0.0 SPF_PASS SPF: sender matches SPF record 0.1 FSL_UA FSL_UA 2.4 AXB_XMAILER_MIMEOLE_OL_024C2 AXB_XMAILER_MIMEOLE_OL_024C2 X-Scan-Signature: 086f3faad0220c9ae57a7913e711a86d Subject: LF: Re: Thunderstorms and LF-Propagation Disturbances Content-Type: text/plain; charset="ISO-8859-15" 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=0.0 required=5.0 tests=none 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: 0:2:480002784:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60164ff487ce051b X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : temperror Something to be said for Satellite Communications. !! ----- Original Message ----- From: "pws" To: Sent: Wednesday, July 04, 2012 4:50 PM Subject: LF: Thunderstorms and LF-Propagation Disturbances > Hi, > > I'm observing the strength of HGA22 since some years. > At late evening of 2012-07-02 strong thunderstorm activity happened > over E-Germany/Poland/Czech Republic. That's right below the > reflection area, assuming a 1-hop propagation. > See: http://www.df3lp.de/misc/hga22/propagation_path.png > > It's well known that lightnings may heat the ionosphere from > below causing disturbances (SIDs). I very often observed > those phenomena called "early/fast events". But what happened > last Monday evening looks record-breaking. I never saw such > chain of ionospheric disturbances. > See: http://www.df3lp.de/misc/hga22/2012-07-02_thunderstorm.png > > Yellow is the raw signal at 10 samples/sec. and blue represents > a running median of 100 data points. The comb-like structures > are from the modulation bursts - I'm receiving the "space" > frequency only. As you can see that's all "signal" and not > qrn/qrm or local interference. A control receiver running > ~6km apart confirms the observations. > > Peter, df3lp >