Particular care should be taken inselecting CESs in areas where ocean regions ______.

Mariners should pay much attention in the overlapped area owing to ______.

The INMARSAT SafetyNET service covers ______.

There is actually an overlap of ______ ocean regions somewhere in Western European Waters.

There are currently ______ operational satellites over the major ocean regions.

If you want to establish the call in the INMARSAT, you shall select the coast earth station ______.

Ships in areas A3 and A4 will transmit ______,as appropriate.①a ship-to-ship alert on MF/VHF; ②a ship-to-shore alert by SES/HF DSC; ③a ship-to-shore alert by satellite EPIRB

Which satellite could be used when you are operating in Dalian port?

In ______ area(s), you can contact Beijing Earth Station for INMARSAT-C services.

Which of the following INMARSAT MES has the function of store and forward? ①INMARSAT-FBB;②INMARSAT-C;③INMARSAT-F

INMARSAT satellite communication system has the ______ of GMDSS functions.①distress.alerting; ②general communication; ③MSI

Which of the following ship earth station has the function of store and forward function?

For ship-to-shore distress alerts, you can use ______.

______ process(es) the distress signal from EPIRB to determine its position and identity.

Regarding Omni-directional antenna, which of the following is true?