Why must all VHF Distress, Urgency and Safety communications (as well as VTS traffic calls) be performed in Simplex operating mode?

Question

Accepted Answer

To ensure that vessels not directly participating in the communications can hear both sides of the radio exchange .

Answer

To minimize interference from vessels engaged in routine communications.

Answer

To enable an RCC or Coast station to only hear communications from the vessel actually in distress.

Answer

To allow an RCC or Coast station to determine which transmissions are from other vessels and which transmissions are from the vessel actually in distress.

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