Return-Path: Received: (qmail 609 invoked from network); 2 Apr 1999 11:57:19 +0100 Received: from magnus.plus.net.uk (HELO magnus.force9.net) (195.166.128.27) by guiness.force9.net with SMTP; 2 Apr 1999 11:57:19 +0100 Received: (qmail 6150 invoked from network); 2 Apr 1999 10:57:54 -0000 Received: from post.thorcom.com (194.75.130.70) by magnus.plus.net.uk with SMTP; 2 Apr 1999 10:57:54 -0000 Received: from troy.blacksheep.org ([194.75.183.50] ident=root) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10T1a6-00020F-00; Fri, 2 Apr 1999 11:53:46 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: (from root@localhost) by troy.blacksheep.org (8.6.12/8.6.12) id KAA10356 for rsgb_lf_group-outgoing; Fri, 2 Apr 1999 10:53:57 GMT Received: from post.thorcom.com (root@post.unica.co.uk [194.75.183.70]) by troy.blacksheep.org (8.6.12/8.6.12) with ESMTP id KAA10352 for ; Fri, 2 Apr 1999 10:53:55 GMT Received: from hil-img-4.compuserve.com ([149.174.177.134]) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10T1ZZ-00020A-00 for rsgb_lf_group@blacksheep.org; Fri, 2 Apr 1999 11:53:13 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: (from root@localhost) by hil-img-4.compuserve.com (8.8.6/8.8.6/2.18) id FAA18974 for rsgb_lf_group@blacksheep.org; Fri, 2 Apr 1999 05:52:34 -0500 (EST) Date: Fri, 2 Apr 1999 05:52:06 -0500 From: "'Geri' Kinzel, DK8KW" Subject: LF: SlowCW and Dwell periods To: rsgb_lf_group@blacksheep.org Message-ID: <199904020552_MC2-7053-64B1@compuserve.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Disposition: inline Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org Andy, G4JNT gives some good insight into what the FFT techniqe is really doing. I am not sure, but maybe who is able to program might try to get hold of the Gram-sourcecode and modify it to our needs. I have another point on my wishlist for the Gram-Software (or a similar one): Take advangate of both channels, feed the signal from the big antenna into one channel, feed the signal from a second receiver with, for example an indoor antenna connected to it, to the second channel, add them with inverted phase and get rid of all that man-made noise that is generated in the vicinity of the receiving antenna. I know, that this idea is not new, it had been realizized on the RF side but I don't know of a software that performs this job in the audio-frequency range (besides programs such as "Cool Edit" that allow noise reduction post processing jobs doing the same, howver, not online). A challange for those excellent programmers out there? Best 73 Geri, DK8KW (W1KW)