Return-Path: Received: (qmail 12414 invoked from network); 27 Dec 2003 23:14:31 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 27 Dec 2003 23:14:31 -0000 Received: (qmail 90912 invoked from network); 27 Dec 2003 23:14:31 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 27 Dec 2003 23:14:29 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AaNdd-000NQq-9D for dave@picks.force9.co.uk; Sat, 27 Dec 2003 23:14:29 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AaNcw-0006bg-NO for rs_out@blacksheep.org; Sat, 27 Dec 2003 23:13:46 +0000 Received: from [64.4.23.74] (helo=hotmail.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AaNcv-0006bJ-RE for rsgb_lf_group@blacksheep.org; Sat, 27 Dec 2003 23:13:46 +0000 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sat, 27 Dec 2003 15:13:14 -0800 Received: from 24.237.8.95 by lw15fd.law15.hotmail.msn.com with HTTP; Sat, 27 Dec 2003 23:13:14 GMT X-Originating-IP: [24.237.8.95] X-Originating-Email: [hellozerohellozero@hotmail.com] X-Sender: hellozerohellozero@hotmail.com From: "Laurence KL1X" To: rsgb_lf_group@blacksheep.org Date: Sat, 27 Dec 2003 14:13:14 -0900 MIME-Version: 1.0 Message-ID: X-OriginalArrivalTime: 27 Dec 2003 23:13:14.0607 (UTC) FILETIME=[0125FFF0:01C3CCCF] Subject: RE: LF: Re: 60kHz: JJY and WWWB visible behind MSF Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 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: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 1 I used Omega nav for flying in the North and South Polar regions in the late 70's and early 80's and I must admit on flying backwards at 140 Knots, in the opposite hemisphere on quite a few occasions - most of these vagries seem to conincide with Geomag acitivity and "pretty auroral lights". I would hope that 60KHz would be less affected but knowing/seeing what happens to signals that come in via the Poles I wouldnt bet on it! JJY on 40 and 60Khz are strong here in the Winter, JJY often pushing our American cousins out of the winning spot, Yep and Im sure I hear that lady saying Oh Jay Jay why? too on these lower freqs... Omega, to the best of my knowledge, was not the favored choice in the Polar regions...sextant with an artificial horizon and a lot of head scratching + sharp pencil seemed to work most of the time...not so good for those long overcast winter night flying at 12,000 ft! Cheers Laurence >From: "Walter Blanchard" >Reply-To: rsgb_lf_group@blacksheep.org >To: >Subject: LF: Re: 60kHz: JJY and WWWB visible behind MSF Date: Sat, 27 Dec >2003 22:05:31 -0000 > >Markus, > >Congratulations on a very nice piece of observation. Since these three >stations are on the same time reference (UTC) within a few nS and the >baselines between MSF/JJY and MSF/WWVB intersect at nearly 90 degs they >could make quite a good over-the-pole navigation aid to replace Omega. The >skywave delays could be computed out (as they were for Omega). > >Walter G3JKV. > > > > > > >--- > >Checked by AVG anti-virus system (http://www.grisoft.com). >Version: 6.0.555 / Virus Database: 347 - Release Date: 23/12/03 _________________________________________________________________ Expand your wine savvy  and get some great new recipes  at MSN Wine. http://wine.msn.com