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ROC-A Radio Operator Certificate (Aeronautical) · Question

When is it permissible to use a cell phone for air-ground communications in lieu of an aircraft radio?

Cell phones may be used for air-ground communications only when the aircraft is on the ground and ATC approves their use. In flight, aircraft radios are the pri

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Question: When is it permissible to use a cell phone for air-ground communications in lieu of an aircraft radio?

Answer options:

  • Only when the aircraft radio fails during an emergency. ✅ When the aircraft is on the ground and air Traffic Control (ATC) authorizes it.
  • Never, as aircraft radios are the only approved means.
  • Only at uncontrolled airports with no radio facilities.

Correct answer: When the aircraft is on the ground and air Traffic Control (ATC) authorizes it.

Explanation: Cell phones may be used for air-ground communications only when the aircraft is on the ground and ATC approves their use. In flight, aircraft radios are the primary and required means of communication.

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