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The frequency range which is called High Frequency band is?

  • A.100 kHz 
  • B.1 GHz 
  • C.30 to 300 MHz 
  • D.3 to 30 MHz

Answer: D

The High Frequency band runs from 3 to 30 MHz.

HF waves are reflected by the ionosphere, so they can travel thousands of kilometres by skywave, which is why short-wave broadcasting, amateur radio and long-range aviation use the band.

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