Return-Path: Received: from mtain-de10.r1000.mx.aol.com (mtain-de10.r1000.mx.aol.com [172.29.64.210]) by air-db06.mail.aol.com (v129.4) with ESMTP id MAILINDB062-86204d23726bf9; Tue, 04 Jan 2011 14:18:03 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-de10.r1000.mx.aol.com (Internet Inbound) with ESMTP id 139443800014F; Tue, 4 Jan 2011 14:18:01 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PaCNY-0008FX-SO for rs_out_1@blacksheep.org; Tue, 04 Jan 2011 19:17:08 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PaCNY-0008FO-Fi for rsgb_lf_group@blacksheep.org; Tue, 04 Jan 2011 19:17:08 +0000 Received: from mail-iw0-f171.google.com ([209.85.214.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PaCNW-0006j9-7p for rsgb_lf_group@blacksheep.org; Tue, 04 Jan 2011 19:17:08 +0000 Received: by iwn2 with SMTP id 2so14765962iwn.16 for ; Tue, 04 Jan 2011 11:17:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=78PzwR9LtsvIDF6+EmaY+wz2DZxzHs6RnSyNtFiVSx0=; b=kcX1zr0QuQcMySt5h6iBCsIo0w6rdb0zj6VECqed/k2c+qA7CFnYtrBs+eC+xzhHk7 bGw4KNZtkupRQpELe+wD+15t+twVkBOGOqvbgcb7A3aFksZY9TX92aDm9T73aLYeg+Py aUKQqE12vjvyTzumv2IL1ybfKbT/3/Vi6AKMg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=vh30zzkLfBkwjek1xmzTIQVn/e35Od24ug56jfr8t03mgvl4k8ssOo+D1d/4HgWTxK PuEMVDDdgpI8CaBrXEK+tYpxmy3NNveg+SQKToQn5ler8aK8U2PDRT7oM53mN/vT6jtI GKCFibpezuNe9BUh4w7HpefXkmQvcFORmHF8g= MIME-Version: 1.0 Received: by 10.231.35.131 with SMTP id p3mr21860902ibd.87.1294168625144; Tue, 04 Jan 2011 11:17:05 -0800 (PST) Received: by 10.231.200.211 with HTTP; Tue, 4 Jan 2011 11:17:05 -0800 (PST) Date: Tue, 4 Jan 2011 19:17:05 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: WSPR Reports Content-Type: multipart/alternative; boundary=00032557a2ba2e653e04990a1d5c 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=HTML_MESSAGE 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-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d294.2 ; domain : gmail.com DKIM : fail x-aol-sid: 3039ac1d40d24d23726963b2 X-AOL-IP: 195.171.43.25 X-Mailer: Unknown (No Version) --00032557a2ba2e653e04990a1d5c Content-Type: text/plain; charset=ISO-8859-1 Looking at the WSPR database, F6CNI is decoding me consistently in the 0dB S/N region. At 391km this can't be realistic, and most likely comes from using a narrow filter - sub 200Hz - before feeding audio to the decoding software. The WSPR software does need a flat audio response in the 1400 - 1600Hz range, and preferably over the complete SSB bandwidth. Andy www.g4jnt.com --00032557a2ba2e653e04990a1d5c Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Looking at the WSPR database, F6CNI is=A0decoding me consistently in= the 0dB S/N region.=A0=A0
=A0
At 391km this can't be realistic, and most=A0likely comes from us= ing a narrow filter - sub 200Hz - before feeding audio to the decoding sof= tware.=A0=A0=A0 The WSPR software does need a flat audio response in the= 1400 - 1600Hz range, and preferably over the complete SSB bandwidth.
=A0
Andy
=A0
=A0
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