Return-Path: Received: (qmail 22166 invoked from network); 24 May 2000 15:23:17 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by grants.core.plus.net.uk with SMTP; 24 May 2000 15:23:17 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12ucoZ-0003AI-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 24 May 2000 16:11:19 +0100 Received: from d06lmsgate-3.uk.ibm.com ([195.212.29.3] helo=lmsfw2.emea.ibm.com) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12ucoY-0003A8-00 for rsgb_lf_group@blacksheep.org; Wed, 24 May 2000 16:11:18 +0100 Received: from d06relay02.portsmouth.uk.ibm.com (d06relay02.portsmouth.uk.ibm.com [9.166.84.148]) by lmsfw2.emea.ibm.com (1.0.0) with ESMTP id QAA61538 for ; Wed, 24 May 2000 16:02:53 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from usa.net (dyn9-87-116-182.italy.ibm.com [9.87.116.182]) by d06relay02.portsmouth.uk.ibm.com (8.8.8m3/NCO v2.07) with ESMTP id QAA12598 for ; Wed, 24 May 2000 16:10:32 +0100 Message-ID: <392BF0AB.64075EB6@usa.net> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Date: Wed, 24 May 2000 17:09:32 +0200 From: "Alberto di Bene" Organization: Undisclosed X-Mailer: Mozilla 4.72 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Spectran References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Mike Dennison wrote: > [snip] > The main disadvantage is its speed varying with other applicatiions > running on the computer as one of the great things about QRSs is > that you can multi-task - I once had a QSO during which I drove my > wife to the shops and back, and didn't miss a single dot. > [snip] Mike, Spectran uses up a lot of the CPU cycles, especially when the overlap factor is high. If other applications contend for CPU time, it is inevitable that some amount of slowing down can happen. In the program there is a measurement device that monitors how much CPU time it can obtain, and adjust dynamically the overlap factor. BTW this is also the reason why sometimes it is possible to see a good amount of fluctuation on the display of the overlap factor. 73 Alberto I2PHD