This bulletin is a day early, as Friday is the day the United States celebrates its independence from the British Empire. Next week we will be back on the regular schedule.
The Earth-facing side of our Sun is suddenly crowded with clusters of sunspots, so this cycle definitely is not over. Over the past week average daily sunspot numbers rose 43.3 points to 115.6, while average daily solar flux …
American Radio Relay League | Ham Radio Association and Resources
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