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Solar Flare Activity Goes High Order

ARRL

Well-Known Member
Nov 15, 2008
10,596
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Following months of quiet and negligible solar flares, new sunspot 2644 unleashed a series of M-class explosions on April 1 and 2. Each blast produced a shortwave radio blackout over different parts of the planet. The powerful explosions also sent beams of radio energy toward Earth.

The Space Weather Prediction Center (SWPC) reports that moderate radio blackouts reaching the R2 level occurred o...

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