What service was established by IMO and IHO for the purpose of coordinating the transmission of navigational warnings to ships in coordinated geographical areas?
A. NAVAREAs.
B. NAVTEX.
C. WWNWS.
D. MSI.
查看答案
In general terms, what system are used for the promulgation of MSI (Maritime Safety Information)?
A. NAVTEX system and EGC in Inmarsat system.
B. HF weather facsimile.
C. RT in SSB, AM and FM modes.
D. All of the above.
What are Maritime Safety Information broadcasts?
A. Mobile distress alerts, weather forecasts, coastal warmings and similar inform
B. Hourly weather broadcasts from CRSs.
Coast Guarding units broadcasts.
D. Messages to pre-defined groups of subscribers.
If you receive a NAVARE A warning message through NATEA containing too many errors, ___________.
A. the message is transmitted in FEC and may be repeated
B. try to receive the messages concerned on other systems
C. contacting the NAVAREA coordinator is a useful method
D. all of the above
Which statement is true of a NAVTEX receiver?
A. Reception is not available in Ocean Area I.
B. Operates on 518 kHz.
C. One must transmit a request signal to initialize the coastal station.
D. Receives distress transmission directly from ships operating in the same Ocean Area.
微信支付 
支付宝支付