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Old January 20th 08, 02:23 AM posted to rec.radio.shortwave
Telamon Telamon is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 4,494
Default Moon Bounce question

In article ,
Doug Smith W9WI wrote:

On Sat, 19 Jan 2008 14:30:12 +0000, Billy Burpelson wrote:
At the HAARP web site for the moon bounce experiment
(http://www.haarp.alaska.edu/haarp/mbann.html), they display a graph
that shows relative power of the incident and reflected signal versus
time. They show the transmitted signal at ~ -65 dB; they show the
reflected signal at ~ -77 dB.

Are they implying that the round trip path loss to the moon and back is
only ~ 12 dB???????


I think they're talking about the relative power *as measured at some
distant point*. If you're listening at a point say, 5,000 miles from the
transmitter in Alaska, you might hear the direct terrestrial signal from
Alaska at -65dB, and the lunar reflection at -77dB.

In other words, 12dB is the *difference* in path loss between the
lunar-reflected signal and the terrestrially-propagated signal.


No, no Doug it's the moon cheese. Don't confuse Billy.

--
Telamon
Ventura, California