Return-Path: Received: from mtain-mp01.r1000.mx.aol.com (mtain-mp01.r1000.mx.aol.com [172.29.193.69]) by air-mf10.mail.aol.com (v129.4) with ESMTP id MAILINMF104-8c004ce846be1dd; Sat, 20 Nov 2010 17:07:58 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mp01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 8EE7138000088; Sat, 20 Nov 2010 17:07:56 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PJvZX-0002Qc-5O for rs_out_1@blacksheep.org; Sat, 20 Nov 2010 22:06:15 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PJvZW-0002QT-Fs for rsgb_lf_group@blacksheep.org; Sat, 20 Nov 2010 22:06:14 +0000 Received: from smtp7.freeserve.com ([80.12.242.2] helo=smtp6.freeserve.com) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PJvZU-0002kA-Ip for rsgb_lf_group@blacksheep.org; Sat, 20 Nov 2010 22:06:14 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3j28.me.freeserve.com (SMTP Server) with ESMTP id 77E4B30000BC for ; Sat, 20 Nov 2010 23:06:06 +0100 (CET) Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3j28.me.freeserve.com (SMTP Server) with ESMTP id 65B7130000BE for ; Sat, 20 Nov 2010 23:06:06 +0100 (CET) Received: from AGB (unknown [91.109.46.75]) by mwinf3j28.me.freeserve.com (SMTP Server) with SMTP id 3804830000BC for ; Sat, 20 Nov 2010 23:06:06 +0100 (CET) X-ME-UUID: 20101120220606229.3804830000BC@mwinf3j28.me.freeserve.com Message-ID: From: "Graham" To: References: In-Reply-To: Date: Sat, 20 Nov 2010 22:06:05 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8089.726 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8089.726 X-Antivirus: avast! (VPS 101120-0, 20/11/2010), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: 500kHz WSPR Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-global-disposition: G x-aol-sid: 3039ac1dc1454ce846bc6cc5 X-AOL-IP: 195.171.43.25 Nothing compared to the 'Fog from Frog' covering that end of the band ....? wspr never was any use on 500 due to long tx times and high local ground wave propagation , someone should take a look at the 5 meg system and take note , one short pulse , job done .. -------------------------------------------------- From: "Rik Strobbe" Sent: Saturday, November 20, 2010 9:45 PM To: Subject: LF: 500kHz WSPR > > Some time ago some USA WSPR TX stations moved from 503.9kHz on 501.1kHz to > avoid RX blocking of local WSPR RX station., This allowed both USA > stations (listening on 503.9) and European stations (listening on 501.1) > to copy WSPR DX without RX blocking by local TX stations . > But I noticed that in the following time more and more USA WSPR RX > stations moved down to 501.1kHz too. And as a result some (at least one) > European WSPR TX station moved down to 501.1kHz too (to be copied by the > USA WSPR RX stations that moved down) and is now blocking the Europeans > listening here. > So it seems that the RX blocking problem is back :-( > I guess this was not the goal ... > > 73, Rik ON7YD - OR7T >