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單項選擇題

A station in the mobile service the emissions of which are intended to facilitate search and rescue operations is（）.

A.EPIRB
B.SART
C.Mobile Station
D.Distress Alerting

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單項選擇題

（）process the distress signal from EPIRB to determine its position and identity.

A.COSPAS-SARSAT
B.ground receiving stations
C.storing distress signal
D.Near polar orbiting satellites

單項選擇題

The range of a MF coast station is normally（）nm.

A.20 to 30
B.200
C.100
D.450

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