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The K7RA Solar Update

Thread starter ARRL
Start date Apr 21, 2018

ARRL

Well-Known Member

Apr 21, 2018

At 0631 UTC on April 20 the Australian Space Forecast Centre issued a Geomagnetic Disturbance Warning.

“Earth is currently under the influence of a high-speed stream from a negative polarity equatorial coronal hole. Geomagnetic activity at Quiet to Active levels is expected and at times may reach up to Minor Storm levels if there are notable southward Bz periods.

INCREASED GEOMAGNETIC ACTIVITY EX...

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The K7RA Solar Update

ARRL

Well-Known Member

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