Return-Path: Received: (qmail 30707 invoked from network); 15 Feb 2003 11:39:38 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 15 Feb 2003 11:39:38 -0000 Received: (qmail 26775 invoked by uid 10001); 15 Feb 2003 11:39:38 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 15 Feb 2003 11:39:38 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18k0ef-0000MG-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 15 Feb 2003 11:38:49 +0000 Received: from [194.73.73.81] (helo=tungsten.btinternet.com) by post.thorcom.com with esmtp (Exim 4.12) id 18k0ee-0000M7-00 for rsgb_lf_group@blacksheep.org; Sat, 15 Feb 2003 11:38:48 +0000 Received: from host213-122-203-33.in-addr.btopenworld.com ([213.122.203.33] helo=Main) by tungsten.btinternet.com with smtp (Exim 3.22 #23) id 18k0ed-0001MK-00 for rsgb_lf_group@blacksheep.org; Sat, 15 Feb 2003 11:38:48 +0000 Message-ID: <003a01c2d4e6$ecc81f60$6507a8c0@Main> From: "Alan Melia" To: "LF-Group" Date: Sat, 15 Feb 2003 11:12:03 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: G3AQC<>KL1X Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.7 required=6.0tests=SPAM_PHRASE_01_02,USER_AGENT_OEversion=2.43 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi all, and congratulations to Laurie^2. A quick look at Steve's (W3EEE) plot for last night does show a good peak between 0450 and 0600z.This is a little surprising as I would not have expected the path to Steve to be a very good predictor of Trans-Arctic propagation. I think Laurie has just crept in, in an aurorally quiet period (?), but the fact that absolutely top conditions were not necessary is very encouraging. Conditions have recently started to slowly recover from the geomagnetic activity we suffered in late January. The Kp index is still "unsettled" and there are predictions of increased solar wind and possible CME from a geoeffective coronal hole, so this "window" may not last too long" The Trans-Arctic path may be very complex and reception may depend on being able to "skip" a signal under the auroral belt, which will provide severe absorption. For this reason it may not always be good when other paths are good and it may also be very dependent on the relative position of the transmitting and receiving stations. There are also several other effects that can have a bearing on Trans-Arctic propagation. These are well described on Tom's KN4LF web site. Well done both, Cheers de Alan G3NYK alan.melia@btinternet.com