4 Shipborne equipment
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Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.263(84) – Revised Performance Standards and Functional Requirements for the Long-Range Identification and Tracking of Ships – (Adopted on 16 May 2008) - Annex – Revised Performance Standards and Functional Requirements for the Long-Range Identification and Tracking of Ships - 4 Shipborne equipment

4 Shipborne equipment

  4.1 In addition to the general requirements contained in resolution A.694(17) on Recommendations on general requirements for shipborne radio equipment forming part of the global maritime distress and safety system (GMDSS) and for electronic navigational aids, the shipborne equipment should comply with the following minimum requirements:

  • .1 be capable of automatically and without human intervention on board the ship transmitting the ship’s LRIT information at 6-hour intervals to an LRIT Data Centre;

  • .2 be capable of being configured remotely to transmit LRIT information at variable intervals;

  • .3 be capable of transmitting LRIT information following receipt of polling commands; and

  • .4 interface directly to the shipborne global navigation satellite system equipment, or have internal positioning capability;

  • .5 be supplied with energy from the main and emergency source of electrical powerfootnote; and

  • .6 be tested for electromagnetic compatibility taking into account the recommendationsfootnote developed by the Organization.

  4.2 In addition to the provisions specified in paragraph 4.1 above, the shipborne equipment should provide the functionality specified in table 1.

Table 1 Data to be Transmitted from the Shipborne Equipment

Parameter   Comments
Shipborne equipment Identifier   The identifier used by the shipborne equipment.
    The Global Navigation Satellite System (GNSS) position (latitude and longitude) of the ship (based on the WGS 84 datum).
    Position: The equipment should be capable of transmitting the GNSS position (latitude and longitude) of the ship (based on WGS 84 datum) as prescribed by regulation V/19-1, without human interaction on board the ship.
Positional data   On-demand (1) position reports: The equipment should be capable of responding to a request to transmit LRIT information on demand without human interaction on board the ship, irrespective of where the ship is located.
  Pre-scheduled(2) position reports: The equipment should be capable of being remotely configured to transmit LRIT information at intervals ranging from a minimum of 15 min to periods of 6 h to the LRIT Data Centre, irrespective of where the ship is located and without human interaction on board the ship.
Time Stamp 1   The date and time(3) associated with the GNSS position. The equipment should be capable of transmitting the time(3) associated with the GNSS position with each transmission of LRIT information.
Notes:

(1) On-demand position reports means transmission of LRIT information as a result of either receipt of polling command or of remote configuration of the equipment so as to transmit at interval other than the preset ones.

 

(2) Pre-scheduled position reports means transmission of LRIT information at the preset transmit intervals.

 

(3) All times should be indicated as Universal Coordinated Time (UTC).

  4.3 The shipborne equipment should transmit the LRIT information using a communication system which provides coverage in all areas where the ship operates.

  4.4 The shipborne equipment should be set to automatically transmit the ship’s LRIT information at 6-hour intervals to the LRIT Data Centre identified by the Administration, unless the LRIT Data User requesting the provision of LRIT information specifies a more frequent transmission interval.

  4.4.1 When a ship is undergoing repairs, modifications or conversions in dry-dock or in port or is laid up for a long period, the master or the Administration may reduce the frequency of the transmission LRIT information to one transmission every 24-hour period, or may temporarily stop the transmission of such information.

Parent topic: Annex – Revised Performance Standards and Functional Requirements for the Long-Range Identification and Tracking of Ships
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