Dear Roger:
Thanks for the formula for calculating the Great Circle distance between two
points. Ive always wanted to know how to calculate it but I didnt know
the formula. Because I lacked the ability to determine it trigonomically, I
determined it by stretching a string between two points
Hi,
Since radio wave travel in Great Circles, hams need Azimuth maps to know
where to point direction antennas. I've downloaded one called Azimuth
Map, and the documentation seems to indicate that I obtained it from:
http://members.shaw.ca/ve6yp
best wishes,
Peter Mayer
John Carmichael wr
Hi John,
Google found this great circle mapper pretty quickly. Go to
http://gc.kls2.com/ and put in the the airport codes. I am sure there are
many others but this one has been there a while, three computer generations
for me. I used the site to trace my father-in-law's 1947 flight immigrating
to
Peter,
I am afraid that the webpage you mention doesn't exist (anymore).
Thibaud Chabot
At 02:18 20-07-2007, Peter Mayer wrote:
Hi,
Since radio wave travel in Great Circles, hams need Azimuth maps to
know where to point direction antennas. I've downloaded one called
Azimuth Map, and the docum
Dear Thibaud,
Oh! Here's a web site which does seem to have it. Scroll down to
the alphabetical listing; it's the fourth one. There are other Great
Circle programs available from the site as well.
http://www.dxzone.com/catalog/Software/Grid_Bearing_and_Maps/
best wishes,
Peter
Th. Ta
Any map drawn in gnomonic projection has the property that all great circles
are straight lines. To plot a great circle on such a map, just draw a straight
line from your departure point to your destination.
Any book on map projections will tell you about the gnomonic projection, but
you will
