Return-Path: Received: (qmail 15884 invoked from network); 23 Oct 2001 23:58:58 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 23 Oct 2001 23:58:58 -0000 Received: (qmail 28937 invoked from network); 23 Oct 2001 23:56:30 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 23 Oct 2001 23:56:30 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 15wBHC-0002O2-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 24 Oct 2001 00:48:06 +0100 Received: from gadolinium.btinternet.com ([194.73.73.111]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 15wBHA-0002Nw-00 for rsgb_lf_group@blacksheep.org; Wed, 24 Oct 2001 00:48:05 +0100 Received: from [62.7.4.107] (helo=default) by gadolinium.btinternet.com with smtp (Exim 3.22 #6) id 15wBGS-0002Az-00 for rsgb_lf_group@blacksheep.org; Wed, 24 Oct 2001 00:47:20 +0100 Message-ID: <003301c15c1d$1360c300$6b04073e@default> From: "Alan Melia" To: "LF-Group" Subject: LF: Propagation Date: Wed, 24 Oct 2001 00:46:39 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hi all, another CME and Geomagnetic storm is on the way, so possibly more aurora. Finbar reports hearing a 'roaring sound' on 136 when the 'streamers' were overhead a few weeks back. I have heard noises like DIY QRM myself at night over the last weekend, but have not been able to relate this with aurora as I have had thick cloud on all events that would have reached this far south. Dave G3YMC was pleased (I think!) to work Finbar this morning, which must enhance Dave's DX distance on 136 somewhat. At the same time neither I, nor Mike GW4HXO could hear Dave. I don't think the orientation of Dave's loop favours us. At about the time of this qso I had a high pitched note in the RX (SSB BW) and noted that I had a strong carrier on 135.450 sending DCF-like data burst which were just above 136.0. The 'idle' frequency is some way down the skirt of my IF filter so it must have been quite strong. By about 1100z it was almost undetectable. So it looks like there may have been some enhanced propagation helping Dave's microwatts up to Malin. Its a bit like winning the lottery to catch it like that..... well done Dave. I have looked to see a cause and can't really find anything I can put my finger on. There does not seem to have been a significant X-ray flare at about that time (0930-1000z).... it is between a C6.0 and a couple of C4.0 flares, but there is also a significant ongoing proton event. The following from spaceweather........... ---------------------------------------------------- Space Weather News for October 23, 2001 http://www.spaceweather.com A strong geomagnetic storm that spawned a vivid display of Northern Lights on Oct. 21st and 22nd is subsiding -- but another storm could begin soon. A pair of solar explosions on Oct. 22nd hurled coronal mass ejections toward Earth. The expanding clouds will likely sweep past our planet on Oct. 24th or 25th and trigger a new round of geomagnetic activity. Visit spaceweather.com for details and to view pictures from a growing gallery of this week's sky show. ---------------------------------------------------- It looks like daytime (0900-1600z) towards the end of the week and next weekend could be quite rewarding, but it does not bode too well for night-time levels or any really long distance (> 4000kms) propagation. Good Hunting and Cheers de Alan G3NYK alan.melia@btinternet.com