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HF Propagation Map - Help
Summary: This shows aggregated signal strength and activity per 4-character grid.
Cluster: Directional activity from a specific grid.
MUF (Beta): Estimated Maximum Usable Frequency per grid.
How to use:
- Select a view: Summary, Cluster, or MUF (Beta).
- Choose a band filter (or "All").
- For Cluster view, enter a valid 4-character grid (e.g.,
CM87
) and press “Go.”