Mandatory Frequency

A very high frequency (VHF) specified in the Canada Air Pilot (CAP), the Canada Flight Supplement (CFS) or the Canada Water Aerodrome Supplement (CWAS) for the use of radio-equipped aircraft operating within a mandatory frequency (MF) area.

Related Articles:
  • Glossary: Flight Service Station
    An ATS unit that provides services pertinent to the arrival and departure phases of flight at uncontrolled aerodromes and for transit through a mandatory frequency (MF) area.

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