Envelope-to: dave@picks.force9.co.uk Delivery-date: Sun, 16 Oct 2005 22:35:34 +0100 Received: by pih-mxcore07.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1ERGAH-0006Me-7k for dave@picks.force9.co.uk; Sun, 16 Oct 2005 22:35:34 +0100 Received: from post.thorcom.com ([193.82.116.20]) by pih-mxcore07.plus.net with esmtp (PlusNet MXCore v2.00) id 1ERGAH-0006L5-3F for dave@picks.force9.co.uk; Sun, 16 Oct 2005 22:35:33 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ERGA9-0003IJ-Gf for rs_out_1@blacksheep.org; Sun, 16 Oct 2005 22:35:25 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ERGA9-0003IA-4e for rsgb_lf_group@blacksheep.org; Sun, 16 Oct 2005 22:35:25 +0100 Received: from smtp814.mail.ukl.yahoo.com ([217.12.12.204]) by relay1.thorcom.net with smtp (Exim 4.51) id 1ERGpe-00026W-2f for rsgb_lf_group@blacksheep.org; Sun, 16 Oct 2005 23:18:19 +0100 Received: (qmail 58732 invoked from network); 16 Oct 2005 21:35:18 -0000 Received: from unknown (HELO Main) (Alan.Melia@213.122.34.196 with login) by smtp814.mail.ukl.yahoo.com with SMTP; 16 Oct 2005 21:35:17 -0000 Message-ID: <001301c5d299$83a0a620$c4227ad5@Main> From: "Alan Melia" To: "Lowfer \(LWCA\)" , "LF-Group" Date: Sun, 16 Oct 2005 22:34:21 +0100 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 V5.50.4522.1200 Subject: LF: Hartmutt's NPG plots Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit 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-PN-SpamFiltered: by PlusNet MXCore (v2.00) Scott. the NPG plots from Hartmutt show and interesting point. The signal is starting to build at a time when the ground shadow is between 1000 and 1800km east of the transmitter. That means the 100km altitude level is not in darkness for about 3000km to the east. It suggest that in good conditions the signal can be launched into the darkness zone up to a hour of more before sunset. We have to remember that this is an east-west path and as such will be different to your Pacific path to Make and the boys at Quartz hill. However it does throw a lifeline to us in the UK suggesting that there may be more time available under favourable conditions. Thanks for flagging this up.....given its frequency slot I did not think we would be able to see it in Europe. It will certainly be interesting to find out how long the path does persist. Cheers de Alan G3NYK