Greeat stuff man. I'll be spending a lot of time on this one! Thanks.
Steve
-------------- Original message --------------
From: James Duffey <JamesDuffey@comcast.net>
> The ARRL internet surfer, WA1LOU, has just posted on the ARRL page an
> interesting summary of a web page called SPLAT!:
>
> < http://cs.ecok.edu/~bw/SPLAT/ >
>
> SPLAT! calculates path loss for frequencies from 20 MHz to 20 GHz. You
> input your location, antenna height, and frequency. It will calculate
> a coverage pattern for you using the Longley-Rice Irregular terrain
> model. It will calculate the path loss between two stations and
> display the path loss as a function of distance between two stations.
>
> You need to input your lat and lon and it adds it to a database of
> other stations. You can calculate the path loss between any two
> stations that are on the list.
>
> This is a web hosted version of the LINUX program SPLAT!, with which I
> was not familiar.
>
> I entered a couple of my favorite rover sites and the results seem to
> qualitatively agree with what I have experienced. The path loss
> calculation lets you see what you need to do to work those stations
> that never seem to come back to you. It also lets you evaluate
> potential rover sites against working the usual contest suspects.
>
> Using this you can calculate the effects of antenna height and sloping
> ground.
>
> The are a couple of things one needs to look out for, I noticed that
> it calculates the path loss assuming vertical polarization and it
> defaults to the temperate climate model. Assuming vertical
> polarization probably is a few dB down on horizontal polarization for
> troposcatter and in some locals a better climate model should be used.
> The desert option would be nice here in NM. The Linux version allows
> one to change these things, but you also need to download a whole lot
> of terrain data that the web page author has already done.
>
> Try it out, it is a great tool for planning roves. - Duffey
> --
> KK6MC
> James Duffey
> Cedar Crest NM
>
>
>
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