Example matrix output. Click the image to open the full-size visual.
See when paths are active
WSPR Matrix imports saved WSPRnet data or collected wspr.live data, then builds a 30-minute UTC table showing observed activity by band. It can compare two selected destination areas and also show all destinations heard by the reporter.
The app runs locally in your browser. No server is required for the browser app itself.
WSPR Matrix reports observed WSPR activity. It does not prove short-path or long-path propagation unless supported by separate directional evidence.