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An HF Propagation Map shows real-time propagation on the HF+ bands. Map data from OpenStreetMap.
- HF Propagation Map
A VHF Propagation Map shows real-time propagation on the 2...
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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
The areas noted in the forecast have the necessary atmospheric conditions to produce tropospheric bending of VHF, UHF and/or microwave radio waves. Tropospheric bending extends the range of radio & TV stations well beyond their normal limit and thus increases interference amongst stations as well.
See real-time radio propagation from amateur packet stations near 144 MHz. The map shows paths smoothed to indicate the distance VHF signals are likely to travel, based on positions and hops reported by APRS-IS nodes.
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.
Use this tool to estimate FM, TV and STL coverage worldwide based on the Longley-Rice model and a large terrain database. You can also compare different scenarios and see the effect of antenna height, power and transmitter location on your signal.
View real time maps and lists of DX spots and propagation conditions for various bands and modes. Customize your options and filters to see grid squares, prefixes, continents, callsigns, modes, propagation types and more.
Learn about VHF and HF band propagation, solar flux, K and A indices, and how they affect radio signals. See current and historical VHF and HF propagation maps and data from APRS-IS and other sources.
