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Subelement A
General Information and System Overview.
Section 4
Functional Requirements
Which of the following is a functional or carriage requirement for compulsory vessels?
  • A compulsory vessel must carry at least two (2) FCC licensed GMDSS Radio Operators in all sea areas as well as a GMDSS Maintainer in sea areas A3 & A4.
  • Correct Answer
    A compulsory vessel must satisfy certain equipment carriage requirements based on the intended sea area of operation.
  • A compulsory vessel must be able to transmit and respond to Distress alerts and carry only one (1) FCC licensed GMDSS Radio Operator in sea areas A1 & A2.
  • None of these answers are correct.

Which of the following is a functional or carriage requirement for compulsory vessels?
(B). A compulsory vessel must satisfy certain equipment carriage requirements based on the intended sea area of operation.

There are different requirements for vessels with various groups of characteristics, so this general answer covers all without excluding any category by not being too specific.

For requirement details from IMO, see Safety regulations for different types of ships

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Which GMDSS communication functions must all compulsory vessels be capable of performing to meet International Maritime Organization requirements?
  • Distress alerting and receipt of Maritime Safety Information via Inmarsat for all vessels intending to operate in Sea Area A4.
  • Distress alerting and receipt of MSI in Sea Areas A1, A2, A3, and A4 regardless of the vessel's intended area of operation.
  • Correct Answer
    Distress alerting, general communications and receipt of Maritime Safety Information in the vessel's intended area of operation.
  • General communications via Inmarsat and receipt of Maritime Safety Information via Enhanced Group Calling in Sea Area A4.

Which GMDSS communication functions must all compulsory vessels be capable of performing to meet International Maritime Organization requirements?

(C). Distress alerting, general communications and receipt of Maritime Safety Information in the vessel's intended area of operation.

There are different requirements for vessels with various groups of characteristics, so this general answer covers all without excluding any category by not being too specific.

SENDING / RECEIVING
Distress alerts:

  • SAR, search and rescue info
  • Location signals
  • At location info
  • ship-to-shore
  • shore-to-ship
  • ship-to-ship

Also

  • MSI, or maritime safety information;
  • Bridge-to-bridge communications.
  • General information

For more info, see International Mobile Satellite Organization article GMDSS

For requirement details from IMO, see Safety regulations for different types of ships

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GMDSS-equipped ships will be required to perform which of the following communications functions?
  • Distress alerting, MSI, SAR and On-scene communications & receipt of satellite alerts from other vessels.
  • SAR and On-scene communications, Bridge-to-Bridge and general radio communications, MSI and relay of satellite alerts from other vessels.
  • Bridge-to-Bridge and general radio communications, RDF of EPIRB homing signals, Distress alerting and MSI.
  • Correct Answer
    Transmit distress alerts, SAR and On-scene communications, MSI, Bridge-to-Bridge and general radio communications.

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

(D). Transmit distress alerts, SAR and on-scene communications, MSI, Bridge-to-Bridge and general radio communications.

47 CFR § 80.1081 Functional requirements. Ships, while at sea, must be capable:

(a) Except as provided in §§ 80.1087(a)(1) and 80.1091(a)(4)(iii), of transmitting ship-to-shore distress alerts by at least two separate and independent means, each using a different radiocommunication service;

(b) Of receiving shore-to-ship distress alerts;

(c) Of transmitting and receiving ship-to-ship distress alerts;

(d) Of transmitting and receiving search and rescue co-ordinating communications;

(e) Of transmitting and receiving on-scene communications;

(f) Of transmitting and receiving signals for locating;

(g) Of transmitting and receiving maritime safety information;

(h) Of transmitting and receiving general radiocommunications to and from shore-based radio sytsems or networks; and

(i) Of transmitting and receiving bridge-to-bridge communications.

See Code of Federal Regulations 47 CFR § 80.1081

For more info, see International Mobile Satellite Organization article GMDSS

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What equipment can be used to receive Maritime Safety Information?
  • Correct Answer
    NAVTEX, EGC receiver or HF SITOR (NBDP).
  • EGC receiver, Inmarsat-F77 or VHF WX channels.
  • HF SITOR (NBDP), Inmarsat-F77 or NAVTEX.
  • All of these answers are correct.

What equipment can be used to receive Maritime Safety Information? (A). NAVTEX, EGC receiver or HF SITOR (NBDP).

NAVTEX works on 518 kHZ to provide ships with direct printing service of meteorological forecasts, warning, urgent marine safety updates, and navigational information.

EGC Receiver, or Enhanced Group Call, is a internal part of the GMDSS. It is used for marine safety information, or MSI, usually outside of NAVTEX coverage area. The type of messages are like those for NAVTEX. EGC communicates with Inmarsat C system to send its messages.
See for more info, EGC Receiver

HF SITOR (NBDP) or SImplex Teletype Over Radio sends text messages. It is used on HF bands to send marine info about weather forecasts and meteorological warnings.

For more info see, US Coast Guard HF SITOR

See National Geospatial-Intelligence Agency site Marine Safety Information

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Which of the following are required GMDSS functions?
  • Bridge-to-Bridge communications, reception of weather map facsimile broadcasts, SAR communications.
  • Reception of weather map facsimile broadcasts, receiving company email, On-scene communications.
  • Reception of VHF weather channels, On-scene communications, general communications.
  • Correct Answer
    Bridge-to-Bridge communications, general communications, SAR communications.

Required GMDSS functions?
(D). Bridge-to-Bridge communications, general communications, SAR communications.

SENDING / RECEIVING
Distress alerts:

  • SAR, search and rescue info
  • Location signals
  • At location info
  • ship-to-shore
  • shore-to-ship
  • ship-to-ship

Also

  • MSI, or maritime safety information;
  • Bridge-to-bridge communications.
  • General information

For more info, see International Mobile Satellite Organization article GMDSS

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Which of the following are required GMDSS functions for vessels?
  • Correct Answer
    Transmit and receive locating signals, general communications and SAR communications.
  • Transmit and receive general communications, transmit Distress Alerts by at least one means, MSI.
  • Transmit and receive locating signals, send MSI to other ships via EGC, Bridge-to-Bridge communications.
  • Transmit and receive SAR communications, transmit Distress Alerts by at least one means, Bridge-to-Bridge communications.

47 CFR § 80.1081 Functional requirements. Ships, while at sea, must be capable:

(a) Except as provided in §§ 80.1087(a)(1) and 80.1091(a)(4)(iii), of transmitting ship-to-shore distress alerts by at least two separate and independent means, each using a different radiocommunication service;

(b) Of receiving shore-to-ship distress alerts;

(c) Of transmitting and receiving ship-to-ship distress alerts;

(d) Of transmitting and receiving search and rescue co-ordinating communications;

(e) Of transmitting and receiving on-scene communications;

(f) Of transmitting and receiving signals for locating;

(g) Of transmitting and receiving maritime safety information;

(h) Of transmitting and receiving general radiocommunications to and from shore-based radio sytsems or networks; and

(i) Of transmitting and receiving bridge-to-bridge communications.

See Code of Federal Regulations 47 CFR § 80.1081

For more info, see International Mobile Satellite Organization article GMDSS

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