NBN EN 61108-4 : 2005

1 Scope
2 Normative references
3 Terms, definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 Performance requirements
  4.1 Introduction
  4.2 Composition
  4.3 Functional requirements
  4.4 Protection
  4.5 Integrity
  4.6 Interfaces
  4.7 IEC 61162-1, IEC 61162-2 implementation
  4.8 IEC 61162-3 implementation
  4.9 Display and control
  4.10 Installation
5 Technical characteristics
  5.1 Carrier frequency
  5.2 Frequency tolerance
  5.3 Message types
  5.4 Data transmission rate
  5.5 Dynamic range
  5.6 Maximum bit error ratio
  5.7 Receiver selectivity and stability
  5.8 Automatic frequency selection
  5.9 Protection ratios
6 Methods of testing and required test results
  6.1 General conditions of measurement and test signals
  6.2 Operational tests
  6.3 Protection of external connections
  6.4 Integrity
  6.5 Technical tests
  6.6 Additional functionality tests
Annex A (normative) Simulation of noise situations for
                      the test of shipborne DGPS maritime
                      radio beacon receiver equipment
  A.1 Parameters describing noise
  A.2 Noise models
  A.3 Test procedures
Annex B (informative) Methodology for measuring WER
  B.1 Recording the RTCM data stream
  B.2 Analysing the RTCM data stream
  B.3 Caution
Annex C (normative) Tests that are specific to integrated
                      equipment that does not provide an output
                      port for testing
  C.1 General requirements
  C.2 Test for WER display
  C.3 Comments to Clause 6, methods of testing
Annex D (informative) Installation guidelines to counteract
                      the effect of interference
  D.1 Introduction
  D.2 Antennas
  D.3 General installation requirements
  D.4 Noise/interference sources
  D.5 Testing
  D.6 Troubleshooting
Annex E (informative) Implementation using a concurrent process
Annex F (informative) Data interface guidance
Annex ZA (normative) Normative references to international
                      publications with their corresponding
                      European publications
Bibliography

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.114(73).