A.Local User Terminal
B.Spacecraft
C.Local-mode coverage
D.Near polar orbiting satellites
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A.1992
B.1980
C.1984
D.1988
A.distress alerting
B.communication
C.broadcasting MSI
D.on-scene communication
A.free reception
B.free transmission
C.dedicated reception
D.dedicated transmission
A.A NAVTEX receiver
B.An EGC receiver
C.MF/HF radio telephone
D.HF radio telephone with NBDP
A.a fixed area or Navarea in any ocean region
B.a Navarea or weather forecast area
C.the designated area or given geographic position
D.anywhere of the world
最新試題
On-scene communications will normally take place between（）.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
By using（）system a ship can send a distress message and know with certainty it will be received.
The vessel has stayed in port for seven days because she needs（）.
We consider（）send a helicopter with medical facilities to the distress area.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
COSPAS-SARSAT is intended to be used for（）.