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
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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
What is not the basic concept (or function) of GMDSS?
A. Search and rescue authorities ashore can be alerted to a distress situation.
B. Shipping in the immediate vicinity of a ship in distress will be rapidly alerted.
C. Shore-side authorities and vessels can assist in a coordinated SAR operation with minimum delay.
D. Sending SSAS alert via C terminals.
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