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In rec.radio.amateur.antenna Jeff Liebermann wrote:
That's why I posted my rant. The idea that VLF signal will reflect or refract off the D-layer is new to me. I had always assume that everything with a wavelength longer than the BCB is ground wave. Apparently not. In this article there is a nine chart that shows propagation modes versus frequency with links to explainations. https://en.wikipedia.org/wiki/Radio_propagation#Modes -- Jim Pennino |
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