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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.
- DX Info Centre
6-Day forecasts of. VHF, UHF & microwave. radio & TV...
- DX Info Centre
An HF Propagation Map shows real-time propagation on the HF+ bands. Map data from OpenStreetMap.
Nautel has partnered with RF engineer Roger Coudé, the author of “Radio Mobile” [1] to provide simple, fast online VHF/UHF coverage mapping and point to point analysis worldwide. These tools are part of the new Nautel RF Toolkit, available free online at the website www.nautel.com.
Now you can also receive customized propagation alerts by E-Mail!! You can help generate this page ! Send formated DX spots indicating clearly both locators and the type or propagation!
6-Day forecasts of. VHF, UHF & microwave. radio & TV anomalous propagation & interference. Real-Time Maps. At VHF.DXView.org website... 144 MHz Map.
The Hepburn Index is an indicator of the amount of signal bending occurring overhead. Some general rules of thumb.. A higher index = higher chance for an event and/or stronger signals. A larger area = longer distances.
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.
