______ service means a service which is based on polar orbiting satellites which receive and relay distress alerts from satellite EPIRBs and which provides their position.
The low polar orbiting satellite system provides the coverage of ______.
Which of the following devices can transmit distress alert signals which is relayed by geostationary GOES weather satellites to LUTs?
Which of the following equipments are intended to facilitate search and rescue operation? ①EPIRB; ②SART; ③AIS-SART.
When a ship sinks, a ______ satellite EPIRB is ______ activated.
When a ship sinks, a ______ satellite EPIRB is ______ activated.
EPIRB batteries must be clearly ______ with their expiry date, the serial number and the identification code.
Which frequency does COSPAS-SARSAT EPIRB use for transmission of distress signals?
The EPIRB battery should be renewed every ______.
In GMDSS, any kind of EPIRB can have the abilities to keep water proof for ______ in 10 m deep.
If a ship happens to be in distress in area A4, ______ EPIRB is to be used for distress alerting.
An EPIRB operating in ______ frequency band through the COSPASSARSAT system is located on board a ship.
______ is used by COSPAS-SARSAT EPIRB for transmission of distress signals.
In the GMDSS, the frequency band 406-406.1MHz may be used ______.
Regarding EPIRBs in GMDSS, the choice ______ is correct.
