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Below you will find charts showing the live conditions around the Earth for radio propagation as well as atmospheric conditions that can affect Ham Radio usage depending on frequency. These are great tools for HF and knowing what the conditions are if you plan on trying to make contacts on a particular day/time.
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20 lut 2014 · the 20 meters amateur radio band 14000 - 14350 Khz
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.
This map shows the last 15 minutes' worth of real-time global radio activity from amateur stations on 11 bands (1.8-54 MHz). It uses data from WSPRnet, Reverse Beacon Network, PskReporter, and DX Cluster to update once every minute. MUF (Maximum Usable Frequency) is the highest frequency that allows for two-way communication.
Now there are about 180 WebSDR servers in operation around the world (updated April 21, 2023). Here is a small sample: NA5B WebSDR covers is VLF, 160, 80, 40, 30, 25, 20, 15 and 10 meter bands. It is located in Washington DC, USA. K3FEF & W3TKP WebSDR located in Milford, Pennsylvania - Northeastern USA. Covers VLF, 160, 80, 60, 40, 30, 20 and ...
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.
