A TCAS II equipped a/c will have mode S because:

Question

Question ATPL - Airline Transport Pilot license - Radio Navigation

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The datalink is required to co-ordinate evasive manoeuvres

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The data link is required to transmit relative position

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Mode S transmits a 3D position

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True altitude is obtained from mode S

Id 106 - ATPL - A TCAS II equipped a/c will have mode S because: