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BENEFITS OF CPDLC |
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The main benefits of CPDLC are reduced voice-channel congestion, less chance of being misunderstood, less fatigue and greater efficiency.
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Additional communications channel |
In addition to voice communications, CPDLC offers a second, independent communication channel to controllers and pilots, reducing the strain on busy sector frequencies.
It is freely available at pilots’ own choice.
Voice communications remain available for read-back at all times, or in the event of problems or abnormalities.
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CPDLC offers an alternative, unambiguous communication channel (e.g. in the event of busy, blocked or deteriorated VHF radio frequency) with no risk of misunderstanding, since crews and air traffic controllers can actually read the messages.
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CPDLC helps increase capacity by reducing voice-frequency load. Today, more than 50% of messages are already exchanged without the need for voice read-back. It is estimated that a 75% CPDLC equipage rate will generate a capacity gain of 11% in Europe.
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With CPDLC, you will never again have to say the words “SAY AGAIN?”. All messages are in written form. And because you can read the text messages, the workload is reduced for both pilots and controllers. This is less tiring for crews and controllers.
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Last validation: 08/12/2008
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