Shore-to-ship distress alert will be addressed as appropriate to a specific ship, to a group of ships, to ships within a ______ or to all ships.

GMDSS is required for which of the followings?

For what purpose are bridge-to-bridge communications used?

In COSPAS-SARSAT, distress signals are always stored in the memory so as to start ______.

______ is safety communication between ships from the position from which the ships are normally navigated.

______ is the communication between ship stations and shore-based stations which concern the management and operation of the ship, normally taken to mean public correspondence to the exclusion of safety, distress, and urgency messages. These communications may be conducted on the appropriate frequencies.

How to update a terminal with the ship's position? ①Automatically, by using an electronic navigational device or a GPS; ②Manually, by keying the position coordinates directly into the terminal at least once every 4 hours; ③Manually, by keying the position coordinates directly into the terminal once every day.

______ is the united nations agency responsible for the Radio Regulations among other things.

The INMARSAT Mobile Numbers has ______ digits.

What is defined as an area, excluding sea area A1, within the radiotelephone coverage area of at least one MF coast station, in which continuous DSC alerting is available as defined by the IMO?

An area within the coverage of at least one VHF shore station in which continuous DSC distress alert is available is ______.

How is the sea area A3 defined by IMO?

In accordance with the SOLAS Convention, what may be the area outside sea areas A1, A2 and A3?

In the vicinity of North Pole, a vessel is operating 10 nautical miles from shore within range of shore-based VHF stations with DSC-alerting capabilities. It is operating within ______.

______ is sea area A2.