Auto-refreshes every 60 seconds. A GOOD feed means the source is current now; Historical depth separately shows how much of the 90-day statistical window is populated. WSPR/RBN headline counts are observations represented, not raw SQLite records.

Click an hour in the heatmap to inspect the regional outlook. Cells show probability and confidence. Fine-region WSPR/RBN evidence is used when available; during migration an older continent aggregate may be used at reduced weight and is identified in the cell tooltip.