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The National Oceanic and Atmospheric Administration Space Weather Prediction Center forecasts a solar maximum between 105 and 125, with the peak occurring between November 2024 and March 2026.  There is broad consensus that solar minimum is ongoing in 2020 — or may have already occurred — and that Cycle 25 will have no major change in the level of solar activity compared to Cycle 24.

You can get custom professional-grade high-frequency (3-30 MHz) propagation predictions online.

Where can I find solar data?

Mark Downing, WM7D, has graphs of solar data on his web site.


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