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Timely Topics

March 2021 gave us more sunspots than January and February. The smoothed sunspot number (thick green line) continued its slow rise.

ARRL DX CW 2012 - Which 10M Path

Is the ionosphere really lower

Grand Solar Minima

Butterfly Diagrams and Solar Minimum

A Look at All Twenty Three Solar Cycles

The Robust Equatorial Ionosphere

 

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