A、a coast station/a ship station
B、an EPIRB/a SART
C、ARQ/FEC
D、a back-up satellite/a land SAR unit
更多“DSC distress relays can be transmitted by either（）or（）.”相关的问题
A、indicate the ship in distress that the alert has been received B、alert ships in the area of a distress incident that a distress has occurred C、inform other coast station of distress incident D、repeat the distress alert in 5 minutes
A、the ship has received the DSC distress call on a HF frequency B、the coast station concerned has not acknowledged it within 5 minutes C、the ship will take command of search and rescue in 5 minutes D、A and B
A、It will abort the transmission and set off an audible alarm that must be manually reset B、It will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situation C、It will initiate the DSC distress alert and default information will automatically be transmitted D、It will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situation
A、It will abort the transmission and set off an audible alarm that must be manually reset B、It will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situation C、It will initiate the DSC distress alert and default information will automatically be transmitted D、It will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situation
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