Return-Path: Received: from rly-mh09.mx.aol.com (rly-mh09.mail.aol.com [172.21.166.145]) by air-mh06.mail.aol.com (v121_r5.5) with ESMTP id MAILINMH063-bf8494f859a10f; Mon, 22 Dec 2008 07:18:42 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mh09.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINMH098-bf8494f859a10f; Mon, 22 Dec 2008 07:18:37 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LEjjI-0007Uh-QX for rs_out_1@blacksheep.org; Mon, 22 Dec 2008 12:17:48 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LEjjI-0007UY-Dk for rsgb_lf_group@blacksheep.org; Mon, 22 Dec 2008 12:17:48 +0000 Received: from smtp806.mail.ird.yahoo.com ([217.146.188.66]) by relay3.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1LEjjH-0005Xe-Ll for rsgb_lf_group@blacksheep.org; Mon, 22 Dec 2008 12:17:48 +0000 Received: (qmail 16647 invoked from network); 22 Dec 2008 12:17:42 -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=elcY7jLRR0bXPcugqD1qQcpPutul1/5Nog5MXGODXS+iVloUo/bPIDH6I8H16aReyh4WfMRCZxYee62n+D6hDkqoPkXj/ot6GGbPumWlB53Sw3m2YMtaenvUBVXo5neDKudpNLJDs0Hv7HBRqUvffxyKHnaTF3A9o5aVblAwRuw= ; Received: from unknown (HELO w4o8m9) (james.moritz@86.134.108.92 with login) by smtp806.mail.ird.yahoo.com with SMTP; 22 Dec 2008 12:17:41 -0000 X-YMail-OSG: g1IcYpIVM1no7.XgRJ81qMq2JTB6jq.mi.gChlDwIHkW2OrBcIifZUErcIddqZpkQsuOnuz1Yyon2TD9mvHA.qNwSw3tRE4sGlyvprV27XzxwRqpgcEx8OVy2JBJmSngFk_XY0SE9D9RMZpsCaonOZz92vFy.2YvmfBT.1FiJKlm6EJqazBsy79avaNF 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 12:16:56 +0000 Message-ID: <000701c96366$04001ca0$4201a8c0@home> From: "James Moritz" To: References: <000701c962f1$b79b04c0$4201a8c0@home> <016901c963c8$1c543720$8d01a8c0@JAYDELL> <494EE0A8.5040607@telus.net> <004501c963cf$24a20db0$8d01a8c0@JAYDELL> Date: Sun, 21 Dec 2008 12:16:54 -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: Re: 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 Mal, LF Group, The bandwidth occupied by a WSPR signal is around 6Hz. Even if every station with a licence ran a WSPR beacon on 500k, only a small fraction of the band would be occupied. Practically, the total bandwidth used by all beacons would be limited to 200Hz, since this is the bandwidth of the receiving software. So the total bandwidth occupied by such beacons could hardly be greater than a single CW signal. Cheers, Jim Moritz 73 de M0BMU