Sporadic E is very unpredictable form of radio wave propagation as a result of highly ionized patches or clouds that occasionally form in the E region of the ionosphere at altitudes between approximately 80 and 150 kilometres.
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Amateur radio enthusiasts utilize specific frequency bands allocated globally for communication. From Low Frequency (LF) to Very-High Frequencies (VHF), each band has distinct characteristics and propagation conditions. Frequency allocations vary by country and ITU region. Understanding band usage and regulations is crucial for effective communication among ham radio operators worldwide.
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