SOLAS vessels are able to communicate with shore stations _________.
A. no matter where they are and no matter what time it is
B. in major oceans and at scheduled time
C. at regular times everyday
D. from some fixed positions
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Messages bearing the priority marking ROUTINE are to be broadcast _________.
A. immediately
B. at the next scheduled transmission
C. during the next available period
D. at anytime
Regarding Cospas-Sarsat in GMDSS, all of the followings are correct expect _________.
A. EPIRBs are units that are used as alerting devices.
B. There are satellites in a low-earth polar orbit that detect EPIRB beacons on 406 Mhz and relay the information to an earth-side Local User Terminal (LUT).
C. The Doppler frequency measurement concept is used to determine the EPIRB's location.
D. It works in 1.6 Ghz band.
_________ is the means of initiating the transmission of ship-to-shore distress alerts in MF band.
A. 406 MhzEPIRB.
B. SSAS based on Inmarsat-C satellite
CESs in the Inmarsat geostationary satellite service.
D. MF DSC
Via _________ you can get facsimile service.
A. Inmarsat-C， ship-to-shore and shore-to-ship
B. COSPAS-SARSAT
C. Inmarsat-F
D. MF/HF DSC
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