Practice question

What is the main operational purpose of Controller-Pilot Data Link Communications (CPDLC)?

To provide text-based exchange of routine messages and clearances between controllers and pilots, reducing voice frequency congestion
To transmit real-time aircraft video feeds from the cockpit directly to the ATC tower console
To automate the pilot's autopilot inputs using ground-based ATC computers
To provide secondary backup voice communications using satellite phone protocols

Answer: A — To provide text-based exchange of routine messages and clearances between controllers and pilots, reducing voice frequency congestion

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