TechnicalNoticeonperformancestandardsforshipborneIndianRegionalNavigationSatelliteSystem(IRNSS)receiverequipment[MSC.449(99)]issuedbyIMO

CCSTechnical Information(2021)Technical Information No.50 Total No.556Sep.13,2021(Total pages)To:Related departments in CCS Headquarters,each plan approval center,eachbranch (office),marine product manufacturers,ship-owner,etc.Technical Notice on performance standards for shipborne IndianRegional Navigation Satellite System (IRNSS)receiver equipment[MSC.449(99)]issued by IMO-BackgroundThe Maritime Safety Committee(MSC)of International Maritime Organization(IMO),at its 99th session,approved the performance standards for shipborneIndian Regional Navigation Satellite System (IRNSS)receiver equipment[MSC.449(99)】in24May2018.RECOMMENDS IRNSS receiver equipment installed on or after 1 July 2020conforms to performance standards not inferior to those specified.二.Main contentsThe resolution is newly provided,which include as follows:1.IRNSS is the regional navigation satellite system and the service is limited to thefollowing coverage area:Area closed by 55E Longitude,50N Latitude and 110ELongitude,5S Latitude2.IRNSS receiver equipment should include the following minimum facilities:.1 antenna capable of receiving IRNSS signals;.2 IRNSS receiver and processor;