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This map shows real-time radio propagation from stations operated near 144 MHz. It uses data gathered by Automatic Packet Reporting System-Internet Service (APRS-IS) from packet stations in the amateur radio service .
- HF Propagation Map
This map shows real-time radio propagation from stations...
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VHF Propagation Map This map shows real-time radio...
- text based interface
VHF Propagation Map. APRS Activity by Region. North America:...
- HF Propagation Map
This map shows real-time radio propagation from stations operated near 144 MHz. It uses data gathered by Automatic Packet Reporting System-Internet Service (APRS-IS) from packet stations in the amateur radio service. The map shows activity from the past hour.
VHF Propagation Map. APRS Activity by Region. North America: CN88 760 km, EN80 640 km, CN81 500 km and 13 more. South America: GG54 720 km. Europe: JO89 1380 km, JN25 1380 km, JN57 1060 km and 43 more.
The VHF Propagation Path Profiler presented here is a comprehensive application that allows us to graphically render and mathematically compute various relevant VHF/UHF propagation metrics including VHF propagation path losses, over the realistic terrain profile between any two point-to-point locations on the surface of the earth.
William Hepburn's VHF/UHF Tropospheric Ducting Forecast ON4AA On-Line HF Propagation Prediction Learn about your current local HF propagation conditions and obtain a forecast in a snap!
This map shows real-time radio propagation from stations operating on 11 bands between 1.8 and 54 MHz in the amateur radio service. The display shows worldwide activity from the last 15 minutes and is automatically updated about every minute. ... A VHF Propagation Map shows real-time propagation on the 2 meter band. $47 USD: Your donation ...
One of the best tools for understanding HF (high-frequency) propagation is the online map (chart) shown below. It is a graphical representation of MUF within a 3000-kilometer range, allowing amateur radio station operators to estimate the best frequencies and paths for effective communication.
