A.an EGC receiver only
B.a satellite communication system
C.a HF radio system
D.a VHF with DSC system
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A.English/all distress communications
B.Chinese/some distress calls
C.the language decided by Administration/all distress calls
D.Japanese/some distress alerts
A.countries
B.states
C.names
D.groups
A.200
B.300
C.400
D.800
A.a dummy antenna
B.a supporting facilities
C.a back-up equipment
D.an antenna
A.HF
B.VHF
C.MF
D.MF/HF
最新試題
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with()which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
Please use()for().
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous()alert.
As each MSI message will have a unique identity, the printing of messages already received correctly is().
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of()tons gross tonnage and upwards but less than 500 tons gross tonnage.
By using()system a ship can send a distress message and know with certainty it will be received.
Before GMDSS, if the radio officer on board is serious ill,().
The frequency()the safety message will be transmitted shall be included in DSC safety call.
SOLAS ships shall be equipped with().
International Navtex service means the coordinated broadcast and automatic reception on()khz of maritime safety information by narrow-band direct-printing telegraphy using English language.