單項(xiàng)選擇題

Every radio installation shall be clearly marked with the（）, the ship station identity and other codes as applicable for the use of the radio installation.

A.call sign
B.port of register
C.radio name
D.signal label

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單項(xiàng)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

單項(xiàng)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

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