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
All coast radio stations（）DSC installed for VHF and HF.
What following is not among the function of SOLAS ships?（）
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
（）will form the basis for distress alerting and safety calling.
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）