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The K7RA Solar Update

ARRL

Well-Known Member
Nov 15, 2008
10,584
51
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Average daily sunspot numbers and solar flux increased this week,
with sunspot numbers going from 111.4 to 114.9, and flux values from
149.2 to 155.3.

A feel-good exercise is to compare these numbers with a year ago,
when the sunspot reading in 2021 Propagation Forecast Bulletin
ARLP041 was only 30.7 and flux was 86.9. Solar Cycle 25 progression
is better than predicted.

October 9 saw a planetary A in...

Continue reading...
 

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