Return-Path: Received: (qmail 1971 invoked from network); 22 Jul 2002 15:09:16 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 22 Jul 2002 15:09:16 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 26606 invoked by uid 10001); 22 Jul 2002 15:12:54 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 22 Jul 2002 15:12:53 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 17WeiP-0001oL-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 22 Jul 2002 16:03:13 +0100 Received: from mrwint.cisco.com ([144.254.98.48] helo=cisco.com) by post.thorcom.com with esmtp (Exim 3.33 #2) id 17WeiO-0001oF-00 for rsgb_lf_group@blacksheep.org; Mon, 22 Jul 2002 16:03:12 +0100 Received: from virgin.net (rtp-vpn2-42.cisco.com [10.82.240.42]) by cisco.com (8.8.8/2.6/Cisco List Logging/8.8.8) with ESMTP id QAA17345 for ; Mon, 22 Jul 2002 16:02:37 +0100 (BST) Message-ID: <3D3C1E06.99DD300C@virgin.net> Date: Mon, 22 Jul 2002 16:00:22 +0100 From: "Stewart Bryant" X-Mailer: Mozilla 4.76 [en]C-CCK-MCD (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Re: LF Roundtable References: <3D3BDF8E.17F2CEE1@usa.net> <5.1.0.14.0.20020722134910.00adc928@gemini.herts.ac.uk> <3D3C0DBA.13397D9@usa.net> 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: Alberto di Bene wrote: > James Moritz wrote: > > > Re - computer required for Spectran, I found my old P133/16Mb had problems > > trying to run Spectran, but various machines around 300MHz seemed to be > > perfectly OK. The display on the slower computer had a peculiar "blinking" > > effect, and attempting to save the waterfall to files produced some rather > > odd-looking results. > > While the PC speed may affect the smoothness of the waterfall, I am rather > dubious that it can impact the quality of the captured images. > I would tend to point the finger on the video card used, or on the resolution > settings. Spectran works best at 24 bits-per-pixel (16,777,216 colours or 'True Color' > in Windows parlance) or at 16 bpp (that's 262,144 colours, or 'High Color'). > Working at 8 bpp is 'tolerated', but the results are less than spectacular... > Just to add some clarification, I have no interest in the quality of the local display, just the quality of the captured image. My plan is to sit this in the corner listening to MB7LF on a dedicated receiver and dumping the output to a web site every few minutes. Anyone have any thought about how frequently this needs to be? How does the system work, is the captured image derived by screen capture or from internal data? Stewart > > 73 Alberto I2PHD