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Old 12-15-2016, 06:56 PM   #13
NN5I
Carl, nn5i
 
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Actually about 1/8 to 1/7 of a second. It's 24,000 miles around the planet at a little more than 186,000 miles per second.

There have been QST articles about "long-delayed echoes", as I think they are called.

There's even a Wikipedia article about them.
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