BS EN 61108-4:2004 – Maritime navigation and radiocommunication equipment and systems — Global navigation satellite systems (GNSS) — Part 4: Shipborne DGPS and DGLONASS maritime radio beacon receiver equipment — Performance requirements, methods of testing and required test results

1 Scope
This part of IEC 61 1 08 specifies the minimum operational and performance requirements, methods of testing and required test results conforming to performance standards not inferior to those adopted by the IMO in resolution MSC.1 1 4(73). In addition, it takes account of IMO resolution A.694(1 7) and is associated with IEC 60945. When a requirement of this standard is different from IEC 60945, the requirement in this standard shall take precedence.
This standard may be satisfied by equipment integral with GNSS equipment.
This standard is applicable to HSC.
All text of this standard, whose wording is identical to that in IMO resolution MSC.1 1 4(73) and ITU-R M.823 is printed in italics and the resolution (abbreviated to – 1 1 4 and M.823 respectively ) and paragraph numbers are indicated in brackets i.e. (1 1 4/3.3 or M.823/3.3 ).
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60945, Maritime navigation and radiocommunication equipment and systems – General requirements – Methods of testing and required test results
IEC 61 1 62-1 , Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 1: Single talker and multiple listeners
IEC 61 1 62-2, Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 2: Single talker and multiple listeners, high speed transmission
IMO Resolution MSC.1 1 4(73), Revised recommendation on performance standards for shipborne DGPS and DGLONASS maritime radio beacon receiver equipment
IMO Resolution A.694(1 7), General requirements for shipborne radio equipment forming part of the Global Maritime Distress and Safety System (GMDSS) and for electronic navigational aids
ITU-R M.823-2, Technical characteristics of differential transmissions for Global Navigation Satellite Systems (GNSS) from maritime radio beacons in the frequency band 283,5 – 315 kHz in Region 1 and 285 – 325 kHz in Regions 2 and 3
3 Terms, definitions and abbreviations
For the purposes of this standard the following definitions and abbreviations apply.
3.1 Definitions
3.1 .1
Eurofix
the Eurofix datalink is a scheme for modulation of the Loran-C and Chayka signals to establish a broadcast capability that can be used for distribution of GNSS corrections,integrity data and other information. Similar developments in the US are referred to as LORAN-COMM
3.1 .2
global navigation satellite system (GNSS)
is a world-wide position, time and velocity radio determination system comprising space, ground and user segments
3.1 .3
integrity
is the ability to provide users with warnings within a specified time when the system should not be used for navigation
BS EN 61108-4:2004 – Maritime navigation and radiocommunication equipment and systems — Global navigation satellite systems (GNSS) — Part 4: Shipborne DGPS and DGLONASS maritime radio beacon receiver equipment — Performance requirements, methods of testing and required test results