All-in-One HAM Radio Signal Reports and Propagation Tools

HF Propagation Map - Help

Summary: Aggregated signal strength and activity per 4-character grid.

Cluster: Directional activity from a specific grid.

MUF: Estimated Maximum Usable Frequency per grid.

D-RAP: D-RAP (D-Region Absorption Prediction) shows predicted levels of HF radio absorption in the Earth’s D-region of the ionosphere. It highlights areas where radio signals may be weakened or “blackout” conditions can occur, especially after solar X-ray flares. The map displays absorption intensity by frequency band using smooth, color-coded zones, helping operators identify where HF communications may be degraded or unusable.

Reports: Historical data per callsign or grid, including direction (sent/received), plus true two-way QSOs (only contacts where both sides saw each other) from the last 10 minutes.

Realtime: Live MQTT feed from PSK Reporter showing spots as they happen in real-time. Shows activity from the last 10 seconds (no filter) or last 1 minute (callsign/grid filter). Auto-pauses when tab is hidden to save bandwidth.

POTA: Parks on the Air activation paths and global view.

SOTA: Summits on the Air activations with summit details, altitude, points, and propagation paths to receivers. Click any ⛰️ mountain icon to filter by that specific summit and see all recent activations.

QSO: Upload and visualize your own ADIF log on the map. Shows your contacts with paths, band/mode filters, and options to toggle arcs and time labels.

How to use:

• Select a view: Summary, D-RAP, Cluster, MUF, Reports, Realtime, POTA, SOTA, or QSO.
• Use filters (Band, Mode, Grid, etc.) to refine results.
• Click "Go" to load filtered data for views like Cluster or Reports.

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