Return-Path: Received: (qmail 20914 invoked from network); 30 Sep 1999 08:03:15 +0100 Received: from unknown (HELO magnet.force9.net) (195.166.128.26) by guiness.force9.net with SMTP; 30 Sep 1999 08:03:15 +0100 Received: (qmail 12602 invoked from network); 30 Sep 1999 07:08:46 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by magnet.plus.net.uk with SMTP; 30 Sep 1999 07:08:46 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 11WZvA-0005iZ-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 30 Sep 1999 07:42:28 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from ns2.to.cnr.it ([150.145.32.2] helo=ccs2.to.cnr.it) by post.thorcom.com with esmtp (Exim 3.02 #1) id 11WZv8-0005iU-00 for rsgb_lf_group@blacksheep.org; Thu, 30 Sep 1999 07:42:27 +0100 Received: from aldo (aldo.to.cnr.it [150.145.34.37]) by ccs2.to.cnr.it with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2448.0) id TAPG5VQF; Thu, 30 Sep 1999 08:38:28 +0200 From: "Aldo Marchetto" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Organization: CNR To: rsgb_lf_group@blacksheep.org Date: Thu, 30 Sep 1999 08:40:46 +1 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit Subject: Re: Re: LF: re Toni's comments on the 7030 and filters In-reply-to: <008401bf0ab3$17e3ebe0$16fbabc3@default> Message-ID: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Dear Alan, if I understand well,you are receiving CW by ear, not by Spectrogram. For receiving CW by ears I found very useful a stereo processor, like that described in http://hem2.passagen.se/sm0vpo/use/stereo.htm which allow to "spatially" spread signals (and noise) " in front of you": lower frequency signals are stronger in the left earphone speaker, and higher frequency in the right one. In this way you can simply concentrate your brain in the signal coming from a certain "virtual direction" It's interesting with large filters (e.g. 500 Hz), however I never tryied it with narrower filters. It may need some adjustment... 73 Aldo IZ1ANT