Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!hplabs!hp-sde!hpcea!hpnmdla!glenne
From: glenne@hpnmdla.HP.COM (Glenn Elmore)
Newsgroups: comp.sys.atari.st
Subject: Re: Help with recieving satellite pictures!!!
Message-ID: <810005@hpnmdla.HP.COM>
Date: 20 Sep 88 16:32:08 GMT
References: <880914013141.700922@PCO-MULTICS.HBI.HONEYWELL.COM>
Organization: HP Network Measurements Div, Santa Rosa, CA
Lines: 28


   Try the amateur radio magazine "QST" about two or three years ago. They had an article
or two on demodulating and decoding some satellites for display on
computers, I can't remember if it was Atari 8 bit or PCs... maybe both.  If you
really meant 'weather radar' I don't know where to get info (like the
weather radar that the Weather Channel displays) but if you want visible light
or IR photographs I believe there is still stuff going on at 130-140 MHz 
and certainly around 1.6 GHz where the GOES satellites transmit.
   There is also WEFAX hardware available, again in amateur radio circles, 
which will dump directly to a printer from data presently transmitted by 
wire services and others. Try 

Advanced Electronic Applications
P. O. Box C-2160
Lynnwood, WA  98036
(206) 775-7373


I built a system for copying ESSA and NIMBUS sattellites in the early 70's
but I don't think they are running anymore, though the same modulation
techniques are probably in use (NBFM with 2400 HZ subcarrier modulated
to provide synch and luminance info, 200? lines/min 800? lines/frame.)

Glenn Elmore -N6GN-

N6GN @ N6IIU-1
glenn@n6gn.norcal.ampr
glenne@hpnmd.hp.com