A.consists ofB.can be receivedC.is transmitted byD.Are ……

单项选择题If the DSC controller is configured for MF HF operation, the distress will be sent on（）.

A.double frequencies
B.single frequency
C.dedicated frequency
D.multiple frequencies

单项选择题Ship-to-ship distress alerting should be conducted by（）.

A.Inmarsat SES
B.VHF/DSC or MF/DSC
C.SART and VHF/DSC
D.Satellite EPIRB and VHF/DSC

单项选择题If a DSC distress relay is transmitted from coast station , it will（）.

A.indicate the ship in distress that the alert has been received
B.alert ships in the area of a distress incident that a distress has occurred
C.inform other coast station of distress incident
D.repeat the distress alert in 5 minutes

单项选择题EGC is a（）part of INMARSAT-C.

A.component
B.supportable
C.combined
D.complimentary

单项选择题Distress signal are always stored in the memory so as to start（）.

A.local-mode coverage
B.SAR operations
C.data process
D.continuous broadcast