How many pieces of portable two-way VHF transceivers must a passenger ship of 1700 tons GT be provided with?
A. 3
B. 4
C. 2
D. It’s uncertain.
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For locating the ship in distress, the SAR party will make use of _________ by starting 9GHz shipborne or airborne radars.
A. DSC
B. SART
C. EPIRB
D. NBDP
The frequency 156.525MHz and 156.8MHz should be in the band of _________.
A. LF
B. MF
C. HF
D. VHF
In which mode should urgency communication "to all stations" by direct printing telegraphy normally be established?
A. FEC mode at a good propagation only possible
B. ARQ mode
C. FEC mode
D. FEC mode, the ARQ mode may also be used
A SART will generates a series response signals when it _________.
A. is put into water upright
B. generates visual and audible indication
C. is being interrogated by 9GHz shipborne or airborne radar
D. is along its line of bearing and extends on 8nm outward from its position