[HCDX]: Greyline + Great Circle sites

["MARTIN" <MartinCG@xxxxxxxxxxx>]

G'Day from Oz.
A couple of good sites for Greyline & Great Circle as follows :

http://www.fourmilab.ch/cgi-bin/uncgi/Earth/action?opt=-p

has greyline as well as GCMWIN.ZIP
 also cloick on 'choose satellite'

http://dx.qsl.net/propagation/greyline.html

Cheers
Chris Martin
Brisbane
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