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MARCOM

MARCOM
86問 • 1年前
  • alexandre learn
    • 通報

    問題一覧

  • 1

    G.M.D.S.S

    global maritime distress safety system

  • 2

    Represent a significant improvement in marine safety

    global maritime safety system

  • 3

    D.S.C

    digital selective calling

  • 4

    M.F

    Meduim frequency

  • 5

    M.S.I

    maritime safety information

  • 6

    H.F

    high frequency

  • 7

    V.H.F

    very high frequency

  • 8

    N.A.V.T.E.X

    navigational telex

  • 9

    I.T.V

    international telecommunication union

  • 10

    A.I.S

    automatic identification system

  • 11

    A major difference between the GMDSS and the previous wireless telegraphy and radio telephony system is that the equipment to be carried by a ship should be determined by its are operation, rather by its size.

    equipment carriage

  • 12

    THE GMDSS USES MODERN TECHNOLOGY INCLUDING SATELLLITE COMMUNICATIONS AND DIGITAL SELECTIVE CALLING TECHNIQUES IN THE MF, HF AND VHF BANDS

    search and rescue

  • 13

    ADDITIONALY, THE GMDSS PROVIDES FOR URGENCY AND SAFETY COMMUNICATIONS.

    maritime safety information

  • 14

    Which uses MF radio to provide coastal warnings.

    navtex

  • 15

    which uses inmarsat satellite to provide coverage from about 76 degrees north to 76 degrees south latitude

    safetynet

  • 16

    Within the radiotelephone coverage of atleast on VHF coast station which continoues VHF alerting is available ( approx. 20-30 min)

    sea area A1

  • 17

    Within the radiotelephone coverage of atleast one MF coast station in which continous VH DSC alerting is available ( within approx. 100 nm )

    sea area A2

  • 18

    Within the coverage area of an inmarsat geostationary satellite in which continous alerting is availabe ( approx. between 76 N and S)

    sea area A3

  • 19

    The remaining sea areas outside areas A1,A2, and A3 ( basically the polar regions)

    sea area A4

  • 20

    ship which are required to carry the equipment under the solas convention

    solas

  • 21

    Vessels, which are not subject the solas convection, but are required to carry GMDSS equipment under commonwealth legistation

    non-solas

  • 22

    Indicates that mobile unit or person is threatened by grave and imminent danger and requires immediate assistance.

    distress message

  • 23

    Indicates that calling station has a very urgent message concernin the safety of a mobile unit or person.

    urgency message

  • 24

    Indicates that the calling station has an imoortnat navigational or meteorological warning or tansmit.

    safety message

  • 25

    What are the example of public correspondence communications?

    telephone,fax,email and data messages

  • 26

    Is a radio station established on board for communications with stations ashore and other ship station.

    ship station

  • 27

    Is a radio station established on land for the purpose of communicationg with ships sea.

    coastal radio station

  • 28

    A station whose major function is the rovision of SAR communiations, the transmission of weather reports and navigation warnings and watchkeeping of GMDSS distress channels.

    Major coast station

  • 29

    A station operated by volunteer marine rescue organisations and state/territory governments.

    limited coast stations

  • 30

    WHAT IS VTS

    vessel traffic service

  • 31

    Ship station communicate with aircraft stations during search and reacue operations on designated frequencies.

    aircraft stations

  • 32

    Search and recue operations for ships and aircraft and the promulgations of navigation warning information ( referred to as MSI).

    Joint rescue coordination centre

  • 33

    The number of times that the alterning current in a radio wave perforna its complete cycle per second is known as its frquency.

    frequency and wavelength

  • 34

    WHAT ARE THE UNITS OF FREQUENCY:

    kilohertz,megahertz,gigahertz

  • 35

    Operating method in which transmission is made possible alternatively in each directions of a telecommunication channel, for example by means of manual switching.

    Simplex

  • 36

    Operating method in which transmission is possible simultaneously in both directions of a telecommunication channel.

    duplex

  • 37

    Communications equipment that does not have the facility for simulaneous transmission and reception often operates.

    semi-duplex operation

  • 38

    The plan allocates a series of channels for duplex operation and series of channel for simplex operations.

    HF radiotelephone channel plan

  • 39

    Mey be employed for communication between ship station and aircraft stations engaged in coordinated SAR operations.

    channel 06

  • 40

    Is designated worldwide as navigation safety communications channel primarily for intern-ship navigation safety communications

    channel 13

  • 41

    May only be employed for distress,urgency , safety and calling

    channel 16

  • 42

    May be used for on board communications provided the radiated power does not exceed 1W and such communications are permitted in the water of the coastal states in which the ship is operating.

    channel 15 and 17

  • 43

    Is used for DSC for distess , safety and calling

    channel 70

  • 44

    Should be restricted to navigation related communications and as theses channels are located in the band either side of channel 16

    channel 75 and 76

  • 45

    Which travel over the earths surface.

    surface waves or ground waves

  • 46

    WHAT IS VLF

    very low frequencies

  • 47

    What is UHF

    ultra high frequencies

  • 48

    Are radiated upward at all angles from the antenna until they reach the ionisphere.

    sky waves

  • 49

    What are the 3 main sections and components parts of marine radio equipment?

    the antenna,the transmitter and the receiver,the power supply

  • 50

    During transmission, to radiates intro space the radio frequency energy generated by the transmitter.

    The antenna

  • 51

    Is to turn voice audio or data signals into form where they can travel over long distance.

    the transmitter and the receiver

  • 52

    Is to supply electrical energy to the transmitter and the receiver to enable them to carry out their task.

    the power supply

  • 53

    The most common mode of operation

    radiotelephone

  • 54

    This is the method of modulation used on all MF and HF maritime mobile bands.

    Amplitude modulation

  • 55

    In this system the frequency of radio frequency carrier is modulated or varied by the audio signal.

    Frequency modulation

  • 56

    Also know as radio telex, is based on various combination of two tones being sent a radio link.

    narrow band direct printing

  • 57

    Is a paging techniques used to automate the initial canll between two stations.

    digital selective calling

  • 58

    Services are provided by the use of high frequencies

    long range

  • 59

    MF radiocommunications provide the meduim range service

    meduim range

  • 60

    Services are provided bybthe use of very high frequencies

    short range

  • 61

    Satellite communications are used in both ship-shore and shore - ship directions

    inmarsat

  • 62

    Sending alerts:

    1. distress signal from emergency beacons 2.search & rescue satellites 3.local user terminal 4.mission control centre 5.rescue coordination centre 6. SAR reponse

  • 63

    WHAT IS TDM?

    time division multiplex

  • 64

    WHAT IS NCS

    network coordination station

  • 65

    WHAT US NOC

    network operation centre

  • 66

    MODES OF COMMUNICATION:

    telex,voice and facsimile,email,data

  • 67

    Priority distress facilities exist for both voice and data/messaging.

    distress facilities

  • 68

    WHAT IS MRCC

    maritime rescue coordination centre

  • 69

    WHAT IS DDB

    dedicated distress button

  • 70

    WHAT IS DIDS

    distress initation devices

  • 71

    WHAT IS RDB

    remote distress button

  • 72

    This service was discontinued on 31 december 2016

    inmarsat b

  • 73

    Is the successor to the inmarsat - a and ba services.

    fleet 77

  • 74

    What is ISDN

    integrated services digital network

  • 75

    WHAT IS MPDS

    mobile packet data service

  • 76

    WHAT IS MPDS

    mobile pocket data service

  • 77

    This system is currently the only satelite system required by the solas convention as a carriage requirement to receive MSI

    inmarsat c

  • 78

    WHAT IS LIRT

    long range indentification and tracking

  • 79

    Which allows land based organisations, knowns as information provider , to broadcast message to select ships located anywhere within the ocean region.

    enhanced group calling (ECG)

  • 80

    Which provide interface between ships at sea and shore based telecommunication network

    land earth station ( LES )

  • 81

    WHAT IS CESs

    coast earth stations

  • 82

    Is responsible for the overall frequency, signaling and traffic management of its respective region.

    network coordination station ( NCS )

  • 83

    WHAT IS ( SES )

    ship earth station

  • 84

    What is MASTREP

    modernised australian ship tracking and reporting system

  • 85

    WHAT IS AMVER

    automated mutual asisstance vessel rescue

  • 86

    As defined in the 1949 geneva convection and additional protocols, refers to any means of trasnportation by land water or air.

    medical transport

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    SOC SCI

    SOC SCI

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    SOC SCI

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    21問 • 2年前
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    SOC SCI FINALS

    SOC SCI FINALS

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    44問 • 2年前
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    international signal flag

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    NAV 4

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    NAV 4

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    15問 • 1年前
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    MARCOM FINALS

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    alexandre learn · 29問 · 1年前

    MARCOM FINALS

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    29問 • 1年前
    alexandre learn

    問題一覧

  • 1

    G.M.D.S.S

    global maritime distress safety system

  • 2

    Represent a significant improvement in marine safety

    global maritime safety system

  • 3

    D.S.C

    digital selective calling

  • 4

    M.F

    Meduim frequency

  • 5

    M.S.I

    maritime safety information

  • 6

    H.F

    high frequency

  • 7

    V.H.F

    very high frequency

  • 8

    N.A.V.T.E.X

    navigational telex

  • 9

    I.T.V

    international telecommunication union

  • 10

    A.I.S

    automatic identification system

  • 11

    A major difference between the GMDSS and the previous wireless telegraphy and radio telephony system is that the equipment to be carried by a ship should be determined by its are operation, rather by its size.

    equipment carriage

  • 12

    THE GMDSS USES MODERN TECHNOLOGY INCLUDING SATELLLITE COMMUNICATIONS AND DIGITAL SELECTIVE CALLING TECHNIQUES IN THE MF, HF AND VHF BANDS

    search and rescue

  • 13

    ADDITIONALY, THE GMDSS PROVIDES FOR URGENCY AND SAFETY COMMUNICATIONS.

    maritime safety information

  • 14

    Which uses MF radio to provide coastal warnings.

    navtex

  • 15

    which uses inmarsat satellite to provide coverage from about 76 degrees north to 76 degrees south latitude

    safetynet

  • 16

    Within the radiotelephone coverage of atleast on VHF coast station which continoues VHF alerting is available ( approx. 20-30 min)

    sea area A1

  • 17

    Within the radiotelephone coverage of atleast one MF coast station in which continous VH DSC alerting is available ( within approx. 100 nm )

    sea area A2

  • 18

    Within the coverage area of an inmarsat geostationary satellite in which continous alerting is availabe ( approx. between 76 N and S)

    sea area A3

  • 19

    The remaining sea areas outside areas A1,A2, and A3 ( basically the polar regions)

    sea area A4

  • 20

    ship which are required to carry the equipment under the solas convention

    solas

  • 21

    Vessels, which are not subject the solas convection, but are required to carry GMDSS equipment under commonwealth legistation

    non-solas

  • 22

    Indicates that mobile unit or person is threatened by grave and imminent danger and requires immediate assistance.

    distress message

  • 23

    Indicates that calling station has a very urgent message concernin the safety of a mobile unit or person.

    urgency message

  • 24

    Indicates that the calling station has an imoortnat navigational or meteorological warning or tansmit.

    safety message

  • 25

    What are the example of public correspondence communications?

    telephone,fax,email and data messages

  • 26

    Is a radio station established on board for communications with stations ashore and other ship station.

    ship station

  • 27

    Is a radio station established on land for the purpose of communicationg with ships sea.

    coastal radio station

  • 28

    A station whose major function is the rovision of SAR communiations, the transmission of weather reports and navigation warnings and watchkeeping of GMDSS distress channels.

    Major coast station

  • 29

    A station operated by volunteer marine rescue organisations and state/territory governments.

    limited coast stations

  • 30

    WHAT IS VTS

    vessel traffic service

  • 31

    Ship station communicate with aircraft stations during search and reacue operations on designated frequencies.

    aircraft stations

  • 32

    Search and recue operations for ships and aircraft and the promulgations of navigation warning information ( referred to as MSI).

    Joint rescue coordination centre

  • 33

    The number of times that the alterning current in a radio wave perforna its complete cycle per second is known as its frquency.

    frequency and wavelength

  • 34

    WHAT ARE THE UNITS OF FREQUENCY:

    kilohertz,megahertz,gigahertz

  • 35

    Operating method in which transmission is made possible alternatively in each directions of a telecommunication channel, for example by means of manual switching.

    Simplex

  • 36

    Operating method in which transmission is possible simultaneously in both directions of a telecommunication channel.

    duplex

  • 37

    Communications equipment that does not have the facility for simulaneous transmission and reception often operates.

    semi-duplex operation

  • 38

    The plan allocates a series of channels for duplex operation and series of channel for simplex operations.

    HF radiotelephone channel plan

  • 39

    Mey be employed for communication between ship station and aircraft stations engaged in coordinated SAR operations.

    channel 06

  • 40

    Is designated worldwide as navigation safety communications channel primarily for intern-ship navigation safety communications

    channel 13

  • 41

    May only be employed for distress,urgency , safety and calling

    channel 16

  • 42

    May be used for on board communications provided the radiated power does not exceed 1W and such communications are permitted in the water of the coastal states in which the ship is operating.

    channel 15 and 17

  • 43

    Is used for DSC for distess , safety and calling

    channel 70

  • 44

    Should be restricted to navigation related communications and as theses channels are located in the band either side of channel 16

    channel 75 and 76

  • 45

    Which travel over the earths surface.

    surface waves or ground waves

  • 46

    WHAT IS VLF

    very low frequencies

  • 47

    What is UHF

    ultra high frequencies

  • 48

    Are radiated upward at all angles from the antenna until they reach the ionisphere.

    sky waves

  • 49

    What are the 3 main sections and components parts of marine radio equipment?

    the antenna,the transmitter and the receiver,the power supply

  • 50

    During transmission, to radiates intro space the radio frequency energy generated by the transmitter.

    The antenna

  • 51

    Is to turn voice audio or data signals into form where they can travel over long distance.

    the transmitter and the receiver

  • 52

    Is to supply electrical energy to the transmitter and the receiver to enable them to carry out their task.

    the power supply

  • 53

    The most common mode of operation

    radiotelephone

  • 54

    This is the method of modulation used on all MF and HF maritime mobile bands.

    Amplitude modulation

  • 55

    In this system the frequency of radio frequency carrier is modulated or varied by the audio signal.

    Frequency modulation

  • 56

    Also know as radio telex, is based on various combination of two tones being sent a radio link.

    narrow band direct printing

  • 57

    Is a paging techniques used to automate the initial canll between two stations.

    digital selective calling

  • 58

    Services are provided by the use of high frequencies

    long range

  • 59

    MF radiocommunications provide the meduim range service

    meduim range

  • 60

    Services are provided bybthe use of very high frequencies

    short range

  • 61

    Satellite communications are used in both ship-shore and shore - ship directions

    inmarsat

  • 62

    Sending alerts:

    1. distress signal from emergency beacons 2.search & rescue satellites 3.local user terminal 4.mission control centre 5.rescue coordination centre 6. SAR reponse

  • 63

    WHAT IS TDM?

    time division multiplex

  • 64

    WHAT IS NCS

    network coordination station

  • 65

    WHAT US NOC

    network operation centre

  • 66

    MODES OF COMMUNICATION:

    telex,voice and facsimile,email,data

  • 67

    Priority distress facilities exist for both voice and data/messaging.

    distress facilities

  • 68

    WHAT IS MRCC

    maritime rescue coordination centre

  • 69

    WHAT IS DDB

    dedicated distress button

  • 70

    WHAT IS DIDS

    distress initation devices

  • 71

    WHAT IS RDB

    remote distress button

  • 72

    This service was discontinued on 31 december 2016

    inmarsat b

  • 73

    Is the successor to the inmarsat - a and ba services.

    fleet 77

  • 74

    What is ISDN

    integrated services digital network

  • 75

    WHAT IS MPDS

    mobile packet data service

  • 76

    WHAT IS MPDS

    mobile pocket data service

  • 77

    This system is currently the only satelite system required by the solas convention as a carriage requirement to receive MSI

    inmarsat c

  • 78

    WHAT IS LIRT

    long range indentification and tracking

  • 79

    Which allows land based organisations, knowns as information provider , to broadcast message to select ships located anywhere within the ocean region.

    enhanced group calling (ECG)

  • 80

    Which provide interface between ships at sea and shore based telecommunication network

    land earth station ( LES )

  • 81

    WHAT IS CESs

    coast earth stations

  • 82

    Is responsible for the overall frequency, signaling and traffic management of its respective region.

    network coordination station ( NCS )

  • 83

    WHAT IS ( SES )

    ship earth station

  • 84

    What is MASTREP

    modernised australian ship tracking and reporting system

  • 85

    WHAT IS AMVER

    automated mutual asisstance vessel rescue

  • 86

    As defined in the 1949 geneva convection and additional protocols, refers to any means of trasnportation by land water or air.

    medical transport