AIR CANADA AND NAV CANADA have completed initial Controller Pilot Data Link Communications (CPDLC) trials. The new digital tool is expected to significantly improve communications between aircraft flying across the North Atlantic and using the Gander automated air traffic control system. The increasing growth in flights over the North Atlantic further emphasizes the problems of HF communications due to frequency congestion, they said. CPDLC replaces voice communication with a digital link ...


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