The K7RA Solar Update

ARRL –

Conditions were good for Field Day weekend, with no major geomagnetic disruptions, while solar flux and sunspot numbers were relatively high for this part of the solar cycle. On Friday, Saturday and Sunday the sunspot numbers were 41, 34 and 16 while solar flux was 80.3, 77.1 and 74.5.

Planetary A index was 4, 16 and 7 on Friday through Sunday. On Saturday the College A index in Alaska reached 2…

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