This program shows you typical propagation for a given hour of the day during a given month. The propagation is shown as expected signal strengths to be received from different parts of the world, plotted on a world map. VOAProp can also display daily point-to-point propagation charts showing the best frequency and time of day for communication with a particular location.
Free PDF reader and editor app
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A trial version app for Windows, by Ahmad Software Technologies.
A PDF reader with many extra features
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