The K7RA Solar Update

ARRL –

Sunspots reappeared this week, after none on April 28 through May 3. Average daily sunspot numbers increased from 3.6 (last week) to 14.6 (May 3-9).

So far in 2018 56-percent of days were spotless. For all of 2017 the rate was about half or 28-percent, for the whole year, a total of 104 days. These numbers are according to spaceweather.com.

Seemingly counter-intuitively considering the slight ris…

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