Envelope-to: dave@picks.force9.co.uk Delivery-date: Sat, 11 Feb 2006 22:03:09 +0000 Received: by ptb-mxcore01.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1F82pg-0002zv-Sy for dave@picks.force9.co.uk; Sat, 11 Feb 2006 22:03:09 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (PlusNet MXCore v2.00) id 1F82pg-0002zn-OC for dave@picks.force9.co.uk; Sat, 11 Feb 2006 22:03:08 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1F82pM-0002fN-04 for rs_out_1@blacksheep.org; Sat, 11 Feb 2006 22:02:48 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1F82pL-0002fE-FQ for rsgb_lf_group@blacksheep.org; Sat, 11 Feb 2006 22:02:47 +0000 Received: from imo-m28.mx.aol.com ([64.12.137.9]) by relay2.thorcom.net with esmtp (Exim 4.51) id 1F83bz-0000eP-BH for rsgb_lf_group@blacksheep.org; Sat, 11 Feb 2006 22:53:18 +0000 Received: from MarkusVester@aol.com by imo-m28.mx.aol.com (mail_out_v38_r7.3.) id l.8a.36101707 (4418) for <rsgb_lf_group@blacksheep.org>; Sat, 11 Feb 2006 17:02:21 -0500 (EST) From: MarkusVester@aol.com Message-ID: <8a.36101707.311fb8ed@aol.com> Date: Sat, 11 Feb 2006 17:02:21 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 6104 Subject: Re: LF: Fast QSB and SXV ripples Content-Type: text/html; charset=windows-1252 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) Content-transfer-encoding: 8bit <HTML><FONT FACE=arial,helvetica><HTML><FONT SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="2">... rethinking after sending, I may have mixed up Doppler shift signs. A falling pattern (ie. HF to LF stripes) would be spectral components closing in on one another, meaning increasing delay, negative Doppler and upward movement of the reflector before midnight. Still, the mystery about the long delay and the fast Doppler remains.<BR> <BR> 73 de Markus, DF6NM<BR> <BR> In einer eMail vom 11.02.2006 22:46:39 Westeuropäische Normalzeit schreibt MarkusVester@aol.com: <BR> <BR> <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Perhaps even more stunning is the fact that the pattern has a frequency dependence, with the falling slope indicating a periodicity of ~100 Hz. Interpreted as multipath, this would be a 10 ms delay, with a Doppler shift changing from +0.2 Hz to +0.03 Hz...</BLOCKQUOTE></FONT><FONT COLOR="#000000" BACK="#ffffff" style="BACKGROUND-COLOR: #ffffff" SIZE=3 PTSIZE=12 FAMILY="SANSSERIF" FACE="Arial" LANG="2"><BR> </FONT><FONT COLOR="#000000" BACK="#ffffff" style="BACKGROUND-COLOR: #ffffff" SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="2"><BR> </FONT></HTML>