Return-Path: Received: (qmail 4399 invoked from network); 9 Dec 1999 23:33:09 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by 212.159.2.35 with SMTP; 9 Dec 1999 23:33:09 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 11wCuW-0007Dx-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 09 Dec 1999 23:23:44 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from irwell.zetnet.co.uk ([194.247.47.48] ident=root) by post.thorcom.com with esmtp (Exim 3.02 #1) id 11wCuU-0007Ds-00 for rsgb_lf_group@blacksheep.org; Thu, 09 Dec 1999 23:23:43 +0000 Received: from central.zetnet.co.uk (central.zetnet.co.uk [194.247.47.20]) by irwell.zetnet.co.uk (8.9.3/8.9.3/Debian/GNU) with SMTP id XAA12281 for ; Thu, 9 Dec 1999 23:23:31 GMT X-ZSender: g3ldo@zetnet.co.uk X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <1999120923260568199@zetnet.co.uk> Date: Thu, 9 Dec 1999 23:26:05 GMT To: rsgb_lf_group@blacksheep.org From: "Peter Dodd" X-Mailer: ZIMACS Version 1.20c 10000836 Subject: LF: Re: SETI Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Content-type: text/plain; charset=windows-1252; format=flowed MIME-Version: 1.0 Content-transfer-encoding: 8bit The January 2000 edition of the 'Computer Shopper' has an interesting article by Mike Bedford, G4AAE, on the Search for Extraterrestial Intelligence (SETI). This is one of the best written and informative articles I have seen on the subject. The reason I mention the subject on the reflector is not that I expect LGM to come up on the Ropex frequency but to find out more about the software used to process the data collected in the search. One of the illustrations shows a 3-dimensional spectrogam with a frequency resolution of 0.074506Hz Any one elso know about this stuff? Another pic shows a GPS satellite signal displayed on FFT4 with Doppler shift moving the signal two thirds across the screen on the widest frequency screen. -- Regards, Peter, G3LDO