Return-Path: Received: from mtain-mh06.r1000.mx.aol.com (mtain-mh06.r1000.mx.aol.com [172.29.96.218]) by air-mb01.mail.aol.com (v129.10) with ESMTP id MAILINMB013-a1874db82df52c4; Wed, 27 Apr 2011 10:53:41 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1083238000A84; Wed, 27 Apr 2011 10:53:38 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QF66S-0005q7-Lc for rs_out_1@blacksheep.org; Wed, 27 Apr 2011 15:52:32 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QF66R-0005py-O5 for rsgb_lf_group@blacksheep.org; Wed, 27 Apr 2011 15:52:31 +0100 Received: from mail-iy0-f171.google.com ([209.85.210.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QF66O-0000Ve-LC for rsgb_lf_group@blacksheep.org; Wed, 27 Apr 2011 15:52:31 +0100 Received: by iyi20 with SMTP id 20so2222261iyi.16 for ; Wed, 27 Apr 2011 07:52:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=ktRlfOpb/CwvbW4SGxm33ujOfz7HqRrRo2k0amwSYsY=; b=vzRxyd2SNcJLcmUx7u9MWSHZqxuD9qZkNUe8QrXIVBdQEUmFjxkNeXpf7Qb2kumvHI 6NzESlJT1XK/c0DOv5cNZ3WhQFQrBCgpJvc6sLinyNp1qdCOZTJIwfe6qxA7Luxkqn3h IK0Rm2kr4FhE+5tsDg8c52bqfFHrQ8PIjDSAQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=AOxc7bjiuuYfUnpPKmvnqzZbh9+F58izPBRFH6EyeX+nXz3EemS7GCtUSOkbhAPVCy sXbVyebhv2nmxOak8rWH783H0iqDoeXMlZyrpHXci7DDk5AXIn3WtoUPRrYPBHyYIklq oJfouw3hl/CUB1WPgOOSw2maOU/q2mK5q48DI= MIME-Version: 1.0 Received: by 10.231.4.23 with SMTP id 23mr155054ibp.96.1303915942036; Wed, 27 Apr 2011 07:52:22 -0700 (PDT) Received: by 10.231.207.75 with HTTP; Wed, 27 Apr 2011 07:52:21 -0700 (PDT) In-Reply-To: References: Date: Wed, 27 Apr 2011 15:52:21 +0100 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: Re: LF: More 8.97kHz WSPR decodes - changed PC here Content-Type: multipart/alternative; boundary=00151773dba88ac3b904a1e796e4 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30, HTML_FONTCOLOR_UNSAFE,HTML_MESSAGE,LINES_OF_YELLING 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-d299.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d60da4db82df243fa X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --00151773dba88ac3b904a1e796e4 Content-Type: text/plain; charset=ISO-8859-1 Check your sampling rate on the machine that's failing. Although most modern soundcards are based around 48kHz older ones are 44.1kHz based, and give errors when interpolating to 12kHz based rates. Alternatively teh Windows driver that does teh work can'r cope Andy www.g4jnt.com On 27 April 2011 15:19, Roger Lapthorn wrote: > As an experiment I changed over to my wife's laptop and got immediate > decodes of G6ALB's VLF earth mode signal (3km) at -17dB S/N, suggesting the > issue with lack of decodes may be with my soundcard and not Andrew's. > > 1408 -17 -0.6 0.008986 0 G6ALB JO02 47 > 1410 -17 -0.6 0.008986 0 G6ALB JO02 47 > 1412 -17 -1.2 0.008986 0 G6ALB JO02 47 > 1414 -17 -0.8 0.008986 0 G6ALB JO02 47 > 1416 -17 -0.8 0.008986 0 G6ALB JO02 47 > > This is a very solid signal on the 80m square single turn vertical wire > loop antenna. Andrew is using 44W to an earth electrode antenna. > > 73s > Roger G3XBM > > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > http://www.youtube.com/user/g3xbm > https://sites.google.com/site/sub9khz/ > > --00151773dba88ac3b904a1e796e4 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Check your sampling rate on the machine that's failing.=A0 Althou= gh most modern soundcards are based around 48kHz older ones are 44.1kHz ba= sed, and give errors when interpolating to 12kHz based rates.=A0=A0=A0=A0= Alternatively teh Windows driver that does teh work can'r cope
=A0
Andy


=A0
On 27 April 2011 15:19, Roger Lapthorn <rogerlapthorn@gma= il.com> wrote:
As an experiment I changed ove= r to my wife's laptop and got immediate decodes of G6ALB's VLF ear= th mode signal (3km) at -17dB S/N, suggesting the issue with lack of decod= es may be with my soundcard and not Andrew's.

1408 -17 -0.6=A0=A0 0.008986=A0 0 G6ALB JO02 47
1410 -17 -0.6=A0=A0= 0.008986=A0 0 G6ALB JO02 47
1412 -17 -1.2=A0=A0 0.008986=A0 0 G6ALB JO= 02 47
1414 -17 -0.8=A0=A0 0.008986=A0 0 G6ALB JO02 47
1416 -17 -0.8= =A0=A0 0.008986=A0 0 G6ALB JO02 47

This is a very solid signal on the 80m square single turn vertical wir= e loop antenna. Andrew is using 44W to an earth electrode antenna.

= 73s
Roger G3XBM

--
http://g3xbm-qr= p.blogspot.com/
http://www.g3xbm.co.= uk
= http://www.youtube.com/user/g3xbm
https://sites.google.com/site/sub9khz/=


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