题目内容

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

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The frequency 156.525MHz and 156.8MHz should be in the band of _________.

A. LF
B. MF
C. HF
D. VHF

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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

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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

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The letter D is the abbreviation for the word distress in _________.

ADE
B. GMDSS
C. NBDP
DSC

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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 _________.

In which mode should urgency communication "to all stations" by direct printing telegraphy normally be established?

A SART will generates a series response signals when it _________.

The letter D is the abbreviation for the word distress in _________.

A. DSC
B. SART
C. EPIRB
D. NBDP