（）is used for calling and replying,and for transmitting acknowleding and relaying distress alerts.
A: NAVETEX receiver
B: Search and Rescue Transponder
C: Emergency Position Indicating Radio Beacom
D: Digital selective calling
A: NAVETEX receiver
B: Search and Rescue Transponder
C: Emergency Position Indicating Radio Beacom
D: Digital selective calling
举一反三
- 152. The "scan" function of VHF receiver is used to . A: monitor Ch 16 continuously and switching to either Ch 70 0r Ch 13 every 5 seconds B: scan Ch 16 for distress calls C: scan Ch 70 for distress alerts D: sequentially scan all or selected channels
- I _______ for five minutes; why don’t they come? A. A m calling B. called C. was calling D. have been calling A: am calling B: called C: was calling D: have been calling
- 13. How are paired NBDP frequencies normally used? . A: These are normally used for FEC conunurucations with coast radio stations. B: These are normally used for ARQ communications with coast radio stations. C: These are normally used only for distress communications to limit channel interference. D: These are normally used for DSC communications with coast radio stations.
- Which of the following expressions is NOT appropriate when answering a phone call? A: Can I ask who is calling, please? B: Who’s calling please? C: Who are you? Why are you calling? D: Who shall I say is calling?
- 37. All the following equipment can be used to identify the position of the vessel in distress except ______.