CONTENTS

Policy on Intellectual Property Right (IPR)
 1     Introduction
 2     Interference protection criteria for automatic identification system and VHF marine radios from interfering radiation sources
        2.1     For the VHF marine radio receiver and the automatic identification system receiver
                  2.1.1     Assessing the efficacy of the current electromagnetic interference standards for this application
                  2.1.2     Information needed for this application
                  2.1.3     Necessary adjustments to current standards to fit this application
       2.2      Conclusions
 3     Interference protection criteria for marine global navigation satellite system receivers from interfering radiation sources
        3.1     Adjustments for standard resolution bandwidth
        3.2     Comparing these levels to current standards
                  3.2.1     Results of comparison to current standards
                  3.2.2     Measurements by an electromagnetic interference certification laboratory
                  3.2.3     Conclusion
 4     Summary of results
        4.1     Important precautions for avoiding interference when using light emitting diode lamps
        4.2     Separate light emitting diode lamps from sensitive antennas
        4.3     Use vertical separation wherever possible
        4.4     Testing for interference following installation
                  4.4.1     Test the VHF marine radio for interference
                  4.4.2     Alternative method using received signal strength indication to test the VHF marine radio for interference
                  4.4.3     Test the automatic identification system for interference
                  4.4.4     Test the global navigation satellite system for interference
Annex 1  Protection criteria for the VHF data exchange system
 1     VHF data exchange system satellite system characteristics
 2     VHF data exchange system satellite downlink budget
 3     VHF data exchange system satellite downlink power flux-density and noise plus interference levels
 4     Protection for the VHF data exchange system satellite downlink (refer to Recommendation ITU-R M.2092)
 5     Relating VHF data exchange system interference protection to CISPR 25 Class 5 test levels
 6     Protection for the automatic identification system
 7     Conclusions
Annex 2  VHF and automatic identification system installation electromagnetic compatibility test results
Annex 3  Review of emission limits in the global navigation satellite service  frequency bands