Xref: utzoo comp.graphics:7458 rec.ham-radio:13184 sci.physics:9680 sci.space:13932
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!cica!ctrsol!IDA.ORG!roskos
From: roskos@IDA.ORG (Eric Roskos)
Newsgroups: comp.graphics,rec.ham-radio,sci.physics,sci.space
Subject: Re: Hurricane Gabrielle GIF pictures from GEOS
Message-ID: <1989Sep12.182303.3780@IDA.ORG>
Date: 12 Sep 89 18:23:03 GMT
References: <1989Sep8.211006.27074@ux1.cso.uiuc.edu>
Distribution: usa
Organization: IDA, Alexandria, VA
Lines: 23

Phil forwarded to me a question someone asked about how these pictures
were produced.  Unfortunately the posting in which the question appeared
has not arrived here, so I will follow up to the original posting.

Note, incidentally, that the pictures are not from GEOS, they are
primarily from the NOAA TIROS-N satellites.

The equipment used to produce these pictures is as follows:

	- Dressler ARA-800 active antenna
	- Kenwood R-5000 with internal VC-20 VHF converter
	- A&A Engineering WEFAX demodulators
	- PC/AT clone
	- My own software to produce the raw data
	- FBM to produce the GIF images

The R-5000 unfortunately does not have adequate bandwidth for the
satellite pictures, which is the reason for the snow in some of the
whitest and blackest portions of the picture. 
-- 
Eric Roskos (roskos@CS.IDA.ORG or Roskos@DOCKMASTER.NCSC.MIL)
-- 
Eric Roskos (roskos@CS.IDA.ORG or Roskos@DOCKMASTER.NCSC.MIL)