Which is not included in the Natures of Distress DSC alert?
DSC is used primarily to ______.
Ships fitted with GMDSS installations are unable to receive weather information by means of ______.
Which of the following descriptions of usage is suitable for 8,414.5 kHz frequency?
All of the following statements concerning DSC equipment are true, except ______.
All of the following are DSC watch-keeping frequencies, except ______.
The frequency ______ is designated for VHF digital selective calling.
DSC is used primarily to ______.
A GMDSS-equipped vessel must ______ when operating in coastal waters (sea area A1).
DSC is used primarily to ______.
Which of the following contents may be not related to a DSC call?
Terrestrial traffic system has the following equipment: ______.
VHF equipment should be able to send and receive DSC message on Ch ______.
What is the approximate range of VHF radio waves during the day time?
Which of the following requencies has been designated for on-scene communications in the Global Maritime Distress and Safety System?
