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The K7RA Solar Update

Discussion in 'ARRL Updates' started by ARRL, Apr 5, 2012.

  1. ARRL Well-Known Member

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    The bulletin appears a day early this week because ARRL Headquarters is closed for the Good Friday holiday.



    Over the past week, the average daily sunspot number and solar flux values rose slightly, even though as the week progressed, each day had a lower number than the day before. The daily sunspot number began the week at a high of 100, but ended at 60. Likewise, the daily solar flux started a...





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