Envelope-to: dave@picks.force9.co.uk Delivery-date: Sun, 24 Apr 2005 22:00:24 +0100 Received: from ptb-spamcore02.plus.net ([192.168.71.3]) by pih-mxcore05.plus.net with esmtp (PlusNet MXCore v1.0) id 1DPoDI-0005nn-AZ for dave@picks.force9.co.uk; Sun, 24 Apr 2005 22:00:24 +0100 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1DPoHR-0008nq-MZ for dave@picks.force9.co.uk; Sun, 24 Apr 2005 22:04:41 +0100 Received: from [192.168.101.71] (helo=pih-mxcore05.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1DPoHR-0008nn-Jk for dave@picks.force9.co.uk; Sun, 24 Apr 2005 22:04:41 +0100 Received: from post.thorcom.com ([193.82.116.20]) by pih-mxcore05.plus.net with esmtp (PlusNet MXCore v1.0) id 1DPoDH-0005nb-Mt for dave@picks.force9.co.uk; Sun, 24 Apr 2005 22:00:23 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1DPoD1-0006DC-VD for rs_out_1@blacksheep.org; Sun, 24 Apr 2005 22:00:07 +0100 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1DPoD1-0006D3-5Q for rsgb_lf_group@blacksheep.org; Sun, 24 Apr 2005 22:00:07 +0100 Received: from smtp805.mail.ukl.yahoo.com ([217.12.12.195]) by relay.thorcom.net with smtp (Exim 4.43) id 1DPoCy-0008Pd-QQ for rsgb_lf_group@blacksheep.org; Sun, 24 Apr 2005 22:00:07 +0100 Received: from unknown (HELO w4o8m9) (james.moritz@btopenworld.com@81.135.4.168 with login) by smtp805.mail.ukl.yahoo.com with SMTP; 24 Apr 2005 20:59:58 -0000 Message-ID: <001b01c54910$923cf520$a8048751@w4o8m9> From: "James Moritz" To: rsgb_lf_group@blacksheep.org References: <7b.43e60105.2f9d530b@aol.com> Date: Sun, 24 Apr 2005 21:59:55 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 X-SPF-Result: relay.thorcom.net: 217.12.12.195 is neither permitted nor denied by domain of btopenworld.com X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=failed,HTML_30_40=0.056,HTML_MESSAGE=0.001 Subject: Re: LF: Wolf qso Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,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-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit

Dear Markus, LF Group,

There was one problem I recall from when we were using WOLF a few years back - the decoder would not work on strong local sigs, and the solution was to turn the gain right down when receiving an audible signal - I believe Stewart was aware of that problem at the time, but I don't know whether he or Wolf have got round to fixing it since then.

The other thing that caused a few scratched heads was the need to calibrate both the receiver frequency error, and the sound card sample rate - otherwise, if the sample rate was out, it was possible to compensate for the frequency error, but then the bit clock of TX and RX would get out of step over a long integration period. This was mostly a problem when you were trying to copy a very weak signal.

Cheers, Jim Moritz

73 de M0BMU