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The radio frequency spectrum is divided into various bands. What is the range of frequencies that corresponds to the High Frequency (HF) band?
  • A
    30 MHz to 300 MHz
  • B
    3 MHz to 30 MHz
  • C
    300 MHz to 3000 MHz
  • D
    300 kHz to 3000 kHz

The radio frequency spectrum is divided into bands. The table below introduces the frequency bands:

Frequency bandFrequenciesWave bandWave length
VLFVery Low Frequency3-30 kHzVery long100-10 km
LFLow Frequency30-300 kHzLong10-1 km
MFMedium Frequency300-3000 kHzMedium1 km-100 m
HFHigh Frequency3-30 MHzShort100-10 m
VHFVery High Frequency30-300 MHzShort10-1 m
UHFUltra High Frequency300-3000 MHzUltra short1 m-10 cm
SHFSuper High Frequency3-30 GHz (3000-30 000 MHz)Super short10-1 cm
EHFExtremely High Frequency30-300 GHzExtremely short1 cm-1 mm

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