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An accurate statement regarding frequency bands is...

  • A

    HF is higher than VHF.

  • B

    VHF is higher than UHF.

  • C

    VHF is lower than UHF.

  • D

    UHF is lower than VHF.

Refer to the following table:

FREQUENCY BANDFREQUENCIESWAVE BANDWAVE LENGTH
VLF - Very Low Frequency3 – 30 kHzVery Long100 km – 10 km
LF – Low Frequency30 – 300 kHzLong10 km – 1 km
MF – Medium Frequency300 – 3 000 kHzMedium1 km – 100 m
HF – High Frequency3 – 30 MHzShort100 m – 10 m
VHF – Very High Frequency30 – 300 MHzShort10 m – 1 m
UHF – Ultra High Frequency300 – 3 000 MHzUltra Short1 m - 10 cm
SHF – Super High Frequency3 – 30 GHz
(3 000 – 30 000 MHz)		Super Short10 cm – 1 cm
EHF – Extremely High Frequency30 – 300 GHzExtremely Short1 cm – 1 mm


Frequency bands studied in aviation, starting from the lower one, are VLF (Very Low Frequency), LF (Low Frequency), MF (Medium Frequency), HF (High Frequency), VHF (Very High Frequency), UHF (Ultra High Frequency), SHF (Super High Frequency) and EHF (Extremely High Frequency).

The HF band (3-30 MHz) is lower than the VHF band (30-300 MHz), since the HF band uses lower frequencies than the VHF band.
The VHF band (30-300 MHz) is lower than the UHF band (300-3 000 MHz), since the VHF band uses lower frequencies than the UHF band.

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