Return-Path: Received: from mtain-mc02.r1000.mx.aol.com (mtain-mc02.r1000.mx.aol.com [172.29.96.74]) by air-db03.mail.aol.com (v129.10) with ESMTP id MAILINDB034-86974db82fa03e4; Wed, 27 Apr 2011 11:00:48 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mc02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 337F938000050; Wed, 27 Apr 2011 11:00:45 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QF6DJ-00061P-CQ for rs_out_1@blacksheep.org; Wed, 27 Apr 2011 15:59:37 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QF6DI-00061G-T9 for rsgb_lf_group@blacksheep.org; Wed, 27 Apr 2011 15:59:36 +0100 Received: from mail-iw0-f171.google.com ([209.85.214.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QF6DG-0000fL-0e for rsgb_lf_group@blacksheep.org; Wed, 27 Apr 2011 15:59:36 +0100 Received: by iwn8 with SMTP id 8so2216057iwn.16 for ; Wed, 27 Apr 2011 07:59:27 -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=byJzfPPCWfnoBqI0PivukSACXuHde0/1HvQq7sEYg0k=; b=PQcENGuK4HeVHlG1Qpa6HUiqHalJ354Ha42zP9wxfPCvRLfsgJH69a0wxatBPG3UNH kwWYJiG4NGrqU4rjAVwuplCK4aTgOi4JpIqUG5RQuiOn8TCDmVB4Ekm3Iy+YNrrZq40l 5hfeMp6jwd0lhE7y0LCWipSBNm43XzTuVd00w= 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=AJhYu/YPSE3Hg13DfCjUKdZrPdUxI8OGR2DWinKU/A/OYQV/A/iNd+lCi/h7powZeV /k6hLTZ4dyoe++eK8Ant18+PGWGjc7XY2iBh8YILWgaXYFyX5GS9ECNt41Pm3irMQ2pZ ubEtNLCAAWVOrL6bQF5Ofu+FuKKGp3PLPNaQw= MIME-Version: 1.0 Received: by 10.42.189.10 with SMTP id dc10mr2993092icb.247.1303916367643; Wed, 27 Apr 2011 07:59:27 -0700 (PDT) Received: by 10.42.221.133 with HTTP; Wed, 27 Apr 2011 07:59:27 -0700 (PDT) In-Reply-To: References: Date: Wed, 27 Apr 2011 15:59:27 +0100 Message-ID: From: Roger Lapthorn 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=20cf303bff9ee9039404a1e7afdb 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-d280.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d604a4db82f9d3c83 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --20cf303bff9ee9039404a1e7afdb Content-Type: text/plain; charset=ISO-8859-1 The first PC (Dell Inspiron 630m) has been used for WSPR loads of times before (it is my usual PC) and never usually gives any trouble. Odd. We are just drawing the tests to a close for the day now. 73s Roger G3XBM On 27 April 2011 15:52, Andy Talbot wrote: > 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/ >> >> > -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm https://sites.google.com/site/sub9khz/ --20cf303bff9ee9039404a1e7afdb Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable The first PC (Dell Inspiron 630m) has been used for WSPR loads of times be= fore (it is my usual PC) and never usually gives any trouble. Odd.

= We are just drawing the tests to a close for the day now.

73s
Ro= ger G3XBM



On 27 April 2011 15:52, Andy Talbot= <andy.g4jnt@= gmail.com> wrote:
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@gmail.com> wrote:
As an experimen= t I changed over to my wife's laptop and got immediate decodes of G6AL= B's VLF earth mode signal (3km) at -17dB S/N, suggesting the issue wit= h lack of decodes 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/=





--
http://g3xbm-qrp.blogsp= ot.com/
http:/= /www.g3xbm.co.uk
http://www= .youtube.com/user/g3xbm
https://sites.google.com/site/sub9khz/
--20cf303bff9ee9039404a1e7afdb--