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Average daily sunspot number plummeted to 104.4.
Weekly Commentary on the Sun, the Magnetosphere, and the Earth’s Ionosphere for December 12, 2024 from OK1HH:
“The high solar activity in October this year suggests that this may have been the peak of an 11-year cycle. This is not to say that solar activity will not continue to rise. On the contrary, it may well be that the first maximum of the…
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via Amateur Radio Daily: Special Event Stations to Celebrate 200 Years of British Train Travel
via the ARRL: Perfect Storm Exercise in California Gets Results
via the ARRL: Radio Connects is 2025 ARRL Field Day Theme