Return-Path: Received: (qmail 24868 invoked from network); 2 Feb 2003 15:07:36 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 2 Feb 2003 15:07:36 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 22154 invoked from network); 2 Feb 2003 15:07:32 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 2 Feb 2003 15:07:32 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18fLi1-0004dd-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 02 Feb 2003 15:07:01 +0000 Received: from [205.188.157.39] (helo=imo-d07.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.12) id 18fLi0-0004dN-00 for rsgb_lf_group@blacksheep.org; Sun, 02 Feb 2003 15:07:01 +0000 Received: from DL4YHF@aol.com by imo-d07.mx.aol.com (mail_out_v34.13.) id l.1ee.c62ecb (4592) for ; Sun, 2 Feb 2003 10:06:22 -0500 (EST) From: DL4YHF@aol.com Message-ID: <1ee.c62ecb.2b6e8dee@aol.com> Date: Sun, 2 Feb 2003 10:06:22 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: AOL 6.0 for Windows XP DE sub 50 Subject: Re: LF: CW signals Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=2.7 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_05_08,USER_AGENT_AOLversion=2.43 X-Spam-Level: ** X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit Hi Jose,

Congrats for hearing DJ9IE, quite likely the strongest LF station in Germany.

About audio filtering:
If you need a simple program, try Alberto's Spectran (from www.weaksignals.com). On my PC, its filters work perfect.

If you like to invest some more time, try SpecLab (from www.qsl.net/dl4yhf) and use one of the narrow-band filters. Its complicated but versatile. The settings file "CWfilter" allow you to set the filter's center frequency, bandwidth, and frequency conversion (shift) with some sliders on the waterfall frequency scale.

I am sure there are a number of other nice audio filtering programs out there which I have not tried.

Regards,
 Wolf  DL4YHF.