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Global Maritime Distress and Safety System

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   The SeaSources subject module on Global Maritime Distress and Safety System in the online study room as well as the new downloadable software consists of  600 questions and 0 illustrations which are broken down into 100 / 6 question quizzes. If you are studying for your United States Coast Guard Deck License exam you should continue working through all 100 of these quizzes until you are scoring 80% or better on all of them. 

For more details about GMDSS visit the following Global Maritime Distress and Safety System web page.

GMDSS Subjects Include 100 quizzes of 6 questions per quiz on the following:

  1. Fundamental Concepts  

  2. Equipment Systems

  3. Sea Areas

  4. Functional Requirements

  5. Equipment Carriage Requirements

  6. Maintenance Options

  7. Radio Spectrum

  8. Frequency Bands

  9. Modulation-Demodulation, Am & Fm

  10. Carrier, Sidebands,

  11. Channel Spacing.

  12. Antennas.

  13. Inspections And Exemptions

  14. Required Documents And Publications

  15. Maintenance

  16. License And Personnel Requirements.

  17. Reserve Source Of Energy

  18. Equipment Testing

  19. Watchkeeping

  20. Logkeeping

  21. Alphabetical Call Signs, Selcalls

  22. Mmsi, Mid, Ship

  23. Mmsi, Group, Coast Station

  24. Inmarsat Mobile Numbers For A And B Terminals

  25. Inmarsat Mobile Numbers For C Terminals

  26. Dsc Format, Info Sent

  27. Dsc Operations

  28. Dsc Frequencies

  29. Sending A Distress Alert

  30. Follow-On Voice Transmission

  31. Response To A Distress Alert

  32. Distress Relays

  33. Action To Take After Sending A False Distress Alert

  34. Radio Silence & Resumption Of Normal Traffic.

  35. Urgent Traffic

  36. Safety Traffic

  37. Frequencies

  38. Other Procedures.

  39. Sart Activation & Survival Craft Operations

  40. Sart Sar Procedures & Radar Presentation

  41. Sart Frequency & Operations

  42. Sart Testing Procedures & Battery Parameters

  43. Epirb System Structure & Operation

  44. Epirb Alerting & Features

  45. Epirb Homing & Locating Signals

  46. Survival Craft Transceiver

  47. Sar/Mcc/Rcc Systems & Procedures

  48. On Scene Communications

  49. Vhf Controls, Volume, Squelch, Power, Range

  50. Vhf Channel System, Usage, U.S.-International Channels

  51. Navtex-1 Operations.

  52. Navtex-2 Programming.

  53. Navtex-3 Message Format.

  54. Safetynet-1 Operations.

  55. Safetynet-2 Information.

  56. Egc

  57. H.F. Msi

  58. Navareas

  59. Inmarsat-C Power Up, Self-Test, Controls And Indicator Lamps.

  60. Selecting An Inmarsat Ocean Region.

  61. Inmarsat Log-In, Log-Out.

  62. Inmarsat General System Operations

  63. Inmarsat General System Operations

  64. Inmarsat-A Equipment And Operations.

  65. Inmarsat-C Equipment And Operations.

  66. Inmarsat-C Equipment And Operations.

  67. Compare/Differentiate "A" And "C" Terminals.

  68. Selecting C.E.S. - C.E.S. Id #.

  69. Inmarsat-A  Addressing/Dialing Sequence, Voice.

  70. Inmarsat-A  Addressing/Dialing Sequence Telex

  71. Two Digit Operating Codes.

  72. Inmarsat-C  Addressing To Ship, Telex

  73. Inmarsat-C Addressing To A Land Telex Terminal

  74. Inmarsat-C  Addressing To Shore (Or Ship) Fax Terminal

  75. Inmarsat Distress Communications.

  76. Egc

  77. Inmarsat Equipment Faults And Maintenance-1.

  78. Inmarsat Equipment Faults And Maintenance-2.

  79. Mf-Hf Controls Volume, Squelch, Power, Frequency, Mode.

  80. Mf-Hf Frequencies Simplex, Duplex, Half-Duplex.

  81. Mf-Hf Itu Channels

  82. Mf-Hf Voice & Telex Channel Separation

  83. Mf-Hf Modulation, Bandwidth & Emissions.

  84. Mf-Hf Voice Operations-Calling A Coast Station.

  85. Mf-Hf Dsc Controller Call Programming

  86. Mf-Hf Sitor-Nbdp #1 Definitions

  87. Mf-Hf Sitor-Nbdp #2 Technical Characteristics

  88. Mf-Hf Arq Operation #1 Calling A Coast Station.

  89. Mf-Hf Arq Operation #2 Answerbacks

  90. Mf-Hf Arq Operation #3 Operating Codes & Procedures

  91. Mf-Hf Arq Operation #4 Operating Codes & Operating Procedures

  92. Mf-Hf Arq Operation #5 Technical Characteristics

  93. Mf-Hf Addressing Modes Dirtlx, Store-Forward, Etc

  94. Mf-Hf Fec Operation #1

  95. Mf-Hf Fec Operation #2

  96. Mf-Hf Propagation #1 Daytime, Night Time, Winter-Summer

  97. Mf-Hf Propagation #2 Daytime, Night Time, Winter-Summer

  98. Mf-Hf Dsc Controller Alert/Call Response.

  99. Mf-Hf Routine Communications With Coast Stations, Message Handling

  100. Mf-Hf Equipment Faults & Testing