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_____ indicates that a ship is in distress and requires immediate assistance.

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_____ is the Inmarsat Standard-F Service Code for automatic service.

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______ can receive MSI sent by coast station.

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______ consists of all messages relating to the immediate assistance required by the ship in distress.

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______ is capable of finding any 406MHz beacons no matter where they are.

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______ is the center of the frequency band assigned to a station．

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______ is the priority-mark of RT acknowledgement of MF-DSC alert.

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______ may be permitted to transmit on the frequencies in which distress traffic is taking place.

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______ may be used for on-scene communications in the Global Maritime Distress and Safety System?

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______ may be used for the promulgation of MSI (Maritime Safety Information) in port areas.

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______ means safety communications between ships from the position from which the ships are normally navigated.

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______ 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．

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________ can determine the position of any 406 MHz beacons no matter where they are.

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_________can be used for visual detection of a survival craft.

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________communications are inter-ship VHF radiotelephone communications for the purposes of the safe movement of the ships.

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________means the coordinate broadcast and automatic reception on 518kHz of MSI by means of NBDP telegraphy using English．

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______is the emission designation for MF/HF voice signals in the maritime service?

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______should be included in a DSC distress alert.

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A Class 1 MES is capable of________

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A Class 2 INMARSSAT-C MES:

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A DSC call with the MMSI number 003669991 is_____.

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A DSC call with the MMSI number 016699911 is ______.

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A DSC call with the MMSI number 412888111 is likely to______

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A GMDSS-equipped vessel must carry equipment capable of Medium Frequency (MF) DSC transmission and reception:

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A MES can communicate with other MES through ______.

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A radar transponder operating in the 9 GHz band_______.

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A SART will generate ______ when being interrogated by radar.

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A ship operating in sea area A1 must have the following provisions of maintenance.

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A ship operating in sea area A3 must have the following provisions for maintenance.

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A ship station on receiving a shore-to-ship distress alert should ______.

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A station in the mobile service the emissions of which are intended to facilitate search and rescue operations is ______．

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A vessel is experiencing problems tracking the satellite in a Standard-B SES when making course changes. A problem could be_____.

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A vessel is experiencing problems tracking the satellite in a Standard-C SES. The problem could be_____,

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A vessel is operating in the Western Atlantic. To initiate a ship-to-shore telephone contact to a shore-side party in Dalian city of China, whose number is 411-8472-9640, through Beijing Earth Station, using automatic service by telephone, a valid Inmarsat dialing sequence is ______.

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A vessel is operating in the Western Atlantic. To initiate a ship-to-shore TLX contact to a shoreside party in Dalian city of China, whose number is 860528, through Beijing Earth Station, using automatic service by TLX machine, a valid INMARSAT dialing sequence is_____?

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A vessel on a voyage between Kobe and Hongkong, would be operating in which NAVAREA(s)?

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A vessel operating in the vicinity of Dalian port, in which NAVAREA she would be located?

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A vessel operating in the vicinity of Italy, in which NAVAREA she should be located?

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A vessel using SafetyNet should_____.

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According to the SOLAS, which radio equipment is not compelled to the ships exclusively sailing in the sea area A3?

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Acknowledgement of receipt of a DSC alert would be performed by____.

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All country codes which are transmitted by NBDP are preceded by which character(s)?

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All of the following statements concerning DSC equipment are true, except______.

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All the distress message should be preceded by ______.

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Among all NAVTEX transmissions, ______ has the absolute priority.

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

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An arrangement of digits group similar to 123456789 WABCX would be______.

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An automated system that is capable of addressing message to ships in pre-determined groups or to all ships in both fixed and variable geographic areas is know as what?

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As each general MSI message has an unique identity, the printing of messages already received correctly will be______.

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At mid-day, what would be the best choice in attempting to communicate with a shore station some 15 miles distant?

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At mid-day, what would be the best choice in attempting to communicate with a shore station some 75 miles distant?

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At mid-day, what would be the best choice in attempting to communicate, using NBDP with a shore station some 800 miles distant?

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At mid-night, what would be the best choice in attempting to communicate, using NBDP with a shore station some 800 miles distant?

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At what point does a SART begin transmitting?

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Both the satellite communication and terrestrial communications will ______.

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By using the INMARSAT system a ship can send a distress message and ______ it will be received.

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Class 3 INMARSSAT-C MES_____.

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Concerning the main functions of GMDSS, all of the followings are correct, except______.

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COSOPAS-SARSAT is the international satellite system ______.

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Distress alerts will be acknowledged ______.

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Distress alerts will be relayed on the ______ when the RCC considers it necessary.

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DSC distress acknowledgements are normally transmitted by ______ in respond to a received DSC distress call.

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DSC is used primarily to____.

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Each ship station has its own unique ______ MMSI which is included automatically in each DSC call.

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EGC has to do with_____.

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Equipment for radiotelephony use in survival craft stations under GMDSS must have that characteristics?

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Equipment requirements vary according to ______.

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Every A3 ship, while at sea, shall maintain a continuous watch_____.

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Every ship, while at sea, shall maintain a continuous watch on ______ if the ship is fitted with an MF radio installation.

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FEC is used in connection with_____.

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For a ship operating exclusively in sea area A1, A2 and A3, which of the following includes a frequency that is not designated for MF or HF DSC?

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For COSPAS-SARSAT system, ______ usually transmit initial COSPAS-SARSAT alert.

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For each INMARSAT system ______ Network Coordination Station(s) is/are located within each ocean region.

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For locating the ship in distress, The SAR party will make use of ______ by starting 9GHz ship-borne or air-borne radars.

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For ship-to-shore distress alerts, you can use _______.

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Frequencies for receiving HF MSI (Maritime Safety Information) are______.

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Frequencies for receiving MSI (Maritime safety information) internationally are ______.

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Frequencies specified for MSI (Maritime Safety Information) _____.

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Full equipment carriage under GMDSS is____.

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General radio communications in the global system are those between ______ concerning the management and operation of the ships and may have impact on their safety．

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Geostationary satellites are the man-made satellites which______.

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GMDSS is primarily a system based on______.

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GMDSS is required for which of the followings?

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GMDSS-equipped ships will be required to perform which of the following communications functions?

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Having studied the INMARSAT document, GMDSS document, SOLAS Convention and other international navigation documents, we all know that the Chapter IV of SOLAS Convention is mainly about ______.

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How are Enhance Group Calls transmitted?

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How can a radio operator determine the best frequency to choose for an NBDP transmission to a shore station?

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How can the SART’s audible tone monitor be used?

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How is distress priority message rapidly initiated on board the vessel?

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How is global coverage provided by satellites in the maritime satellite service?

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How is ship to shore transmission of a distress priority message in most SESs initiated?

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How many blips appeared on the screen of SART-detecting radar?

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How many frequencies are available for DSC distress alerting on HF band?

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How many MF frequencies are available for DSC distress-related calls?

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How many NAVAREAs are there in the world?

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How many pieces of portable GMDSS VHF transceivers must a cargo ship of 1700GT be provided with?

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How many pieces of portable GMDSS VHF transceivers must a cargo ship of 400GT be provided with?

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How many pieces of portable GMDSS VHF transceivers must a passenger ship of 1700GT be provided with?

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How many pieces of portable GMDSS VHF transceivers must a passenger ship of 400GT be provided with?

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How many sidebands are present in a standard AM signal?