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Old 09-07-2010, 03:36 PM   #101
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Originally Posted by M Paquette View Post
Diffraction is our friend. With a nice high gain antenna, pointed at a ridge top, I'm confident the signal level on the other side of a ridge would be as high as, if not higher than what we could see from an omnidirectional antenna on a flat plain. 15 meters is a wavelength long enough to diffract fairly well over a 'rounded obstacle' like a ridge top.
I guess REWahoo would have to be equally concerned about the diffraction of the returning blast wavefront... analyzing those videos was the best part of the "Weapons Engineering" curriculum.


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