[NLRS] Path loss calculations

[Donn Baker]

Hi again, guys,
I downloaded Technical Note 101.  This may be the jackpot.  There are
chapters on LOS, troposcatter, etc.  There's a LOT of stuff in it.  Its
dated 1965, revised 1967.  Two volumes: Vol I seems to be the "good stuff,"
while Vol II is Annexes (Appendicies) with what appears to be the base data
for the formulas in Vol I.  I didn't look too closely at Vol II.  Each vol
runs to 200 or more pages.  Unzipped, it looks like more than 20 MB. 

As would be expected, math heavy, but I didn't see anything that scared me,
and I'm pretty math-phobic, so I don't it'll be a problem for anyone else.
There are tables, charts, and nomographs if you don't want to crunch numbers.

73 Donn
WA2VOI/0

>All I found for Atmosphereic Absorption (oxygen and water vapor) was a
graph.  However, I did find a reference to the source for the graph.  See:
>NBS (NIST)
>Technical Note 101 
>Transmission Loss Predictions for
>Troposheric Communication Circuits
>Volumes I & II
><http://its.bldrdoc.gov/pub/ntia-rpt/tn101/>
>
>Its LARGE, ~15MB, and I haven't downloaded it (yet ?).  The Contents look
interesting, though.
>**************