ATC clearances and communicationsQuestion 210 of 351

What must the pilot-in-command do when communications are required?

Use any frequency that is free
Use the emergency frequency only
Wait for the ground unit to call first
Establish communication with the ATS unit or community aerodrome radio station on the appropriate frequency

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Correct answer: Establish communication with the ATS unit or community aerodrome radio station on the appropriate frequency

Communication must be established on the appropriate frequency with the right unit.

Questions last reviewed: 18 October 2026