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Radio Propagation


Solar X-rays:
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Geomagnetic field:
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D-Region Absorption
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Created by PA4RM

Elements of the US Department of Defense (DOD) will conduct a “communications interoperability” training exercise November 4-6, once again simulating a “very bad day” scenario. Amateur Radio and MARS organizations will take part.

“This exercise will begin with a notional massive coronal mass ejection event which will impact the national power grid as well as all forms of traditional communicatio...

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