单项选择题
DSC distress relays can be transmitted by either（）or（）.
A.a coast station/a ship station
B.an EPIRB/a SART
C.ARQ/FEC
D.a back-up satellite/a land SAR unit
点击查看答案&解析
相关考题
-
单项选择题
On-scene communications will normally take place between（）.
A.ship in distress and assisting units
B.NCS and RCC
C.RCCs and „0n-scene commander‟ or “co-ordinator surface search”
D.ship in distress and coast station -
单项选择题
（）are used for distress alerting as a rule.
A.SES/DSC/EPIRB
B.SART/radiotelephone
C.COSPAS-SARSAT
D.both B and C -
单项选择题
Mariners can use DSC for（）.
A.general communication
B.distress alerting and safety calling
C.receive MSI
D.both B and C
