Return-Path: Received: from rly-dd08.mx.aol.com (rly-dd08.mail.aol.com [172.19.141.155]) by air-dd05.mail.aol.com (v121_r4.4) with ESMTP id MAILINDD054-b90494f6c5b15e; Mon, 22 Dec 2008 05:31:23 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dd08.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINDD082-b90494f6c5b15e; Mon, 22 Dec 2008 05:31:17 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LEi0j-0005I0-OE for rs_out_1@blacksheep.org; Mon, 22 Dec 2008 10:27:41 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LEi0g-0005Hr-Rn for rsgb_lf_group@blacksheep.org; Mon, 22 Dec 2008 10:27:39 +0000 Received: from smtp815.mail.ird.yahoo.com ([77.238.189.20]) by relay3.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1LEi0d-0004R0-7E for rsgb_lf_group@blacksheep.org; Mon, 22 Dec 2008 10:27:35 +0000 Received: (qmail 90272 invoked from network); 22 Dec 2008 10:27:28 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MIMEOLE; b=4PAjrErFHgusgtCzpVaWRF6DNIUixBNpw5aB1P4qe/Ad5yusjHnqZqhefSZ9vacYvhEj5J8CiicnZxd7CK2wVjPMzajkyciORd468EQLVdeJMpMWzxyWkkPngmzPTfkdaUVSNdGcr6NWuI3v7kIWCIYsphrNcZhGOrFgw3ZXT6g= ; Received: from unknown (HELO w4o8m9) (james.moritz@86.134.108.92 with login) by smtp815.mail.ird.yahoo.com with SMTP; 22 Dec 2008 10:27:27 -0000 X-YMail-OSG: 5c86JcoVM1n4.dtw0DU3kUYocMF44dJrvbh2.8DrkNP6IX.sD9M0OtTOM7CjeNZzJiuK_vkdPtohb6vbGZ7am6Mg7Swn7x5wX4tgxYFj10vbldZb4XDXh5ugNj2XUjHuWeJqwuXZhn2lmtMrYvBwpImSZuBU4I5VFPnIxQy37nW8eVmOOyrxFqiZJ2mO X-Yahoo-Newman-Property: ymail-3 Received: from 127.0.0.1 (AVG SMTP 7.5.552 [270.9.19/1860]); Sun, 21 Dec 2008 10:26:42 +0000 Message-ID: <000901c96356$9dffe3e0$4201a8c0@home> From: "James Moritz" To: References: <000701c962f1$b79b04c0$4201a8c0@home> <016901c963c8$1c543720$8d01a8c0@JAYDELL> <494EE0A8.5040607@telus.net> <004501c963cf$24a20db0$8d01a8c0@JAYDELL> Date: Sun, 21 Dec 2008 10:26:39 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: 500kHz WSPR Beacon Content-Type: text/plain; charset="iso-8859-1" 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 X-AOL-IP: 193.82.116.20 Dear Mark, LF Group, Thanks for the info on reception of the WSPR beacon. It was shut down at about 0830utc. The data from all the receiving stations out as far as TF3HZ at about 1800km is so far quite similar, with the SNR figures showing deep fades, as one would expect. Curiously, there does not seem to be a major difference in the SNR figures recorded at different distances. So far, both myself and previously G0NBD have been copied in the USA using WSPR - I think this is both the stations that have actually tried, and positive reports have come within a couple of attempts, so this looks like a quite viable mode for transatlantic beacons. Although the band allocations do not align between UK and US, I think it should be possible to operate split-frequency to produce a bi-directional trans-atlantic WSPR beacon network. Anyone interested? Cheers, Jim Moritz 73 de M0BMU