All persons using radio must have radio training or a radio endorsement, unless circumstances require it eg:pilot incapacitation

The pilot must ensure

  • They make broadcasts when it is reasonably necessary to avoid collision or risk of a collision
  • The radio is serviceable (functioning correctly)
  • The radio is used in accordance with all rules
  • All broadcasts are to be in English
  • Broadcasts use correct phraseology, avoid slang, are brief and clear
  • Obscene language is not used
  • All broadcasts are accurate and not deceptive
  • Broadcasts of a private nature are prohibited (unless seeking medical assistance)
  • All broadcasts use the correct callsign
  • Broadcasts are not to be recorded or transcripts made
  • VHF 2 way radio mandatory in all Class A C D and E airspace and must be listened to continuously
  • VHF 2 way radio mandatory above 5000 feet in Class G and must be listened to continuously
  • VHF 2 way radio mandatory above 3000 feet in reduced VMC (visibility) and must be listened to continuously
  • Mandatory at CERT or REG aerodromes, indicated in ERSA and must be listened to continuously
  • If radio is not functioning special permission is required for flight
  • Squawk 7600 if radio fails
  • Say transmitting blind if you don’t know if others can hear you


  • Maintain an active listen for at least 5 min prior to takeoff
  • All non CERT or REG in Class G it is not mandatory to have a radio or use it or listen continuously, but it is far safer to do so
  • Make notes of other aircraft callsigns
  • Make notes of any distress broadcasts including time, callsign, location, problem and any other info
  • Refer to PCA charts for estimated VHF coverage at 5000 and 10000 feet
  • If in doubt about an aircraft’s position ask
  • Be aware in class G below 5000 some aircraft have no radio