[SEDXC] Great Circle Map
NN4ZZ Mail
al at nn4zz.com
Sun Feb 3 11:01:22 EST 2008
Roger / SM3GSJ created a program a few years ago to create Great Circle Maps. These are great for pointing your antennas and can be printed large enough to see from a distance. His original DOS based program is still available.
http://hem.passagen.se/sm3gsj/
He has also published some newer versions for windows but they are still works in progress. I couldn't get them to run on XP . I've been in contact with Roger over the last month asking if he has an update in the works. He sent me a new development version that does run on XP. It's not ready for prime time but to make a long story short, it works and creates a .jpg output.
I've created a map with Atlanta as the center and posted it on my web page. The maps are now in "topo color." I added the continent names and vector lines in an image editing tool since those features are not in the development version. If you need a GCM centered on Atlanta, just click on the thumbnail to bring up the full size map and then save a copy to you disk (it is about 1 MB). You can use your favorite image editing software to modify the legend or add your call, etc.
www.nn4zz.com
The link is on Row 4, Column 2
73...Al
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