October 30, 2026
Solar Cycle 25 and HF: What the Sunspot Data Says Now
Solar Cycle 25 guide for radio amateurs: peak sunspot and F10.7 values from NOAA data, the current decline, forecasts to 2030 and…
Read more →Solar Cycle 25 guide for radio amateurs: peak sunspot and F10.7 values from NOAA data, the current decline, forecasts to 2030 and…
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