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Subel. E
6 questions
Subelement E

Survival Craft Equip & S.A.R.:

Section 36

SAR-MCC-RCC: Systems & Procedures-2:

What actions should the GMDSS radio operator take prior to any potential Distress situation?

  • Create a table or chart of all the DSC coast stations that might be used during the vessel's itinerary.
  • Correct Answer
    All of these answers are good operational practice and should be consistently done.
  • Prepare a detailed Distress message file on both satellite & MF-HF SITOR (NBDP) equipment containing all information needed in a Distress so it will be available for last-minute editing.
  • Ensure all LES choices are correct and then updated properly as the vessel transits different SAR jurisdictions.
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What information should be contained in a detailed Distress message that was not transmitted by an initial Distress "hot-key" alert?

  • Vessel position, course & speed and the nature of Distress.
  • The distress vessel's IMN and position at the time of alert.
  • Correct Answer
    Vessel name & call sign, POB and all potential means to communicate with the vessel.
  • Vessel name & call sign, distress vessel's IMN & vessel position.
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Which GMDSS equipment is best suited to simultaneous long-range communications with an RCC/coast station and OSC vessels or SAR aircraft?

  • MF-HF SITOR (NBDP) transmitters using telex follow on frequencies.
  • Inmarsat Signals routed via the RCC to the SAR vessels & aircraft under their control.
  • VHF transmitters to reach SAR aircraft and OSC vessels as well as the RCC/coast station.
  • Correct Answer
    MF-HF SSB transmitters using voice follow-on frequencies.
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Which statement is NOT true regarding an Inmarsat Distress Alert?

  • Correct Answer
    USCG coast stations will receive the alert and immediately notify the correct RCC.
  • The operator selection of LES will determine which associated RCC will receive the alert.
  • If the operator selects an invalid or inoperative LES code the NCS for that service will intercept the call and reroute the alert.
  • If the LES choice is not updated properly the Distress Alert might be routed to a non-optimum RCC, introducing delays and confusion into the Distress situation.
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What are the best resources for researching and planning equipment setups and updates prior to any potential Distress situation?

  • NGA Pub. 117, Inmarsat handbook or manufacturer's equipment manuals.
  • Inmarsat handbook, FCC Part 80 or ITU List of Coast stations.
  • ITU List of Coast stations, IMO GMDSS handbook, FCC Part 80.
  • Correct Answer
    Inmarsat handbook, NGA Pub. 117 or ITU List of Coast stations.
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Which statement is true regarding Inmarsat "hot-key" Distress Alerts?

  • Correct Answer
    The LES programmed by the watch officers into the Distress Alert Update menu determines which RCC will receive your initial Distress Alert.
  • The vessel's position is checked against the SAR jurisdictions and the proper LES updated as the vessel changes NAVAREAS.
  • The GPS position updates the Distress Alert Update menu to the correct LES choice to ensure proper communications with an RCC.
  • The Distress Alert defaults are set correctly by the manufacturer and then automatically updated.
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