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IEC 61108-7:2024 specifies the minimum performance standards, methods of testing and required test results for Satellite based augmentation system (SBAS) shipborne receiver equipment, which uses L1 signals from GPS and satellite based augmentation system (SBAS) in order to improve the estimated GPS position.
This document addresses the use of SBAS L1 to provide augmentation to the GPS shipborne receiver (IMO Resolution MSC.112(73)). This document includes the minimum performances for SBAS L1 maritime receivers to be obtained by the receiver equipment under coverage of SBAS service in order to be compliant with the IMO Resolution A.1046(27) describing operational requirements for ocean waters, harbour entrances, harbour approaches and coastal waters.