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Most long-distance shortwave skywave communication lies in which range?

A30 to 300 MHz
B3 to 30 MHz
C300 kHz to 3 MHz
D3 to 30 kHz
Answer & Solution
Correct answer: B. 3 to 30 MHz
High-frequency shortwave signals between 3 and 30 MHz are the ones bent back by the ionosphere over long distances.
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