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Which of the following is a VHF voice communication frequency?

  • A

    116.300 MHz

  • B

    110.800 MHz

  • C

    124.855 MHz

  • D

    146.000 MHz

Basically:

  • Nav frequencies are 108 to 117.975 MHz
  • Voice Comms are 118 to 137 MHz

124.855 MHz is the only answer that fits in the 118 to 137 MHz range, which is only for voice communications.


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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