Can anyone tell me where to find a self-updating "great circle" map, centered on my QTH or on the center of the U.S., which also shows the actual surface of the earth in darkness at any given time?

I have been looking for this but have only found one which INCORRECTLY renders the dark area. This would be very useful to me in DX work and, I would think, to others!

73'

John

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K5JMY Bartoli Jr, John A

The Google Search
"great circle map auto updating" yields a lot of results.

Try some of those links.

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VE3FWF Bernie Murphy