X-GM-THRID: 1197400039296615094 X-Gmail-Labels: rsgb lf X-Gmail-Received: b5bbfba1e19c9e8fa3fb86880154d1cc9da46b7b Delivered-To: daveyxm@gmail.com Received: by 10.54.71.12 with SMTP id t12cs19637wra; Fri, 10 Mar 2006 02:24:53 -0800 (PST) Received: by 10.67.24.19 with SMTP id b19mr1833227ugj; Fri, 10 Mar 2006 02:24:53 -0800 (PST) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.gmail.com with ESMTP id j1si1817815ugf.2006.03.10.02.24.52; Fri, 10 Mar 2006 02:24:53 -0800 (PST) Received-SPF: neutral (gmail.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1FHemK-0008Ls-05 for rs_out_1@blacksheep.org; Fri, 10 Mar 2006 10:23:24 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1FHemI-0008Lj-Vr for rsgb_lf_group@blacksheep.org; Fri, 10 Mar 2006 10:23:23 +0000 Received: from olympus.pncl.co.uk ([195.224.180.233] helo=olive.pncl.co.uk) by relay2.thorcom.net with esmtp (Exim 4.51) id 1FHfm4-0007Xk-8L for rsgb_lf_group@blacksheep.org; Fri, 10 Mar 2006 11:27:14 +0000 Received: from AUG2004 (cpc1-leat1-6-0-cust60.hers.cable.ntl.com [81.96.11.60]) (authenticated bits=0) by olive.pncl.co.uk (8.13.4/8.13.4) with ESMTP id k2AAO91K017631 for ; Fri, 10 Mar 2006 10:24:10 GMT Message-ID: <000d01c6442c$9198ae30$0400a8c0@AUG2004> From: "Walter Blanchard" To: References: <20060309.155410.3264.4.riese-k3djc@juno.com> <44114CE6.7000905@ukonline.co.uk> Date: Fri, 10 Mar 2006 10:22:39 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 X-Pinnacle-MailScanner-Information: Please contact the ISP for more information X-Pinnacle-MailScanner: Found to be clean X-MailScanner-From: blanch@pncl.co.uk X-Spam-Score: -2.4 (--) X-Spam-Report: autolearn=disabled,AWL=0.162,BAYES_00=-2.599 Subject: Re: LF: galloping horses Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 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 Status: O X-Status: X-Keywords: X-UID: 6185 The reason was that the "galloping horses" (actually Loran-A) were confined to 1950 kHz in the North Atlantic area which included Eastern seaboard USA. The Pacific area got the 1850 kHz channel. There were odd exceptions (like the short-lived Sky-Wave Synchronised Loran chain over Europe in 1945 that used 1900 kHz) but not many. For the full story read "The Memoirs of Dr J A Pierce" Jack pretty well invented the Loran-A system and was a good friend of mine until he died in 1991. MIT Radiation Lab Series Vol 4 ("Loran") also has a good resume and describes the early attempts at low-frequency Loran that was resurrected in 1957 to become Loran-C. Walter G3JKV. ----- Original Message ----- From: "Les Thompson" To: Sent: Friday, March 10, 2006 9:58 AM Subject: Re: LF: galloping horses > In article <44114CE6.7000905@ukonline.co.uk>, Peter Dodd > writes >>riese-k3djc@juno.com wrote: >> >>> Hear Hear,,,, true I remember as a lad in the late 50s that the effect >>> was >>> noted as Galloping Horses,,,, The 160 meter band was useless >>> stateside >>> >> >>I worked W1BB several times from 9L1 on the low end of 160m in 1964. How >>did he manage it? >> >>Peter, G3LDO >> > I have a vague memory that Stew had an arrangement with the US Coast > Guard to allow him a noise free slot for some of his record attempts. > > Could be an urban myth though but it's going to bug me now until I > have a read through my old RSGB Bulls. > -- > Les G8ARF / G3VYZ / RSARS 173