What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received? ()

A . No action is necessary,as the DSC control unit will automatically switch to the NBDP follow-on communications frequency B . The operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was received C . The Operator should immediately set continuous watch on VHF channel 70 D . The Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received

时间:2022-09-16 12:36:44 所属题库:GMDSS题库

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