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About this resource
GPS (Global Positioning System) and GNSS (Global Navigation Satellite Systems) are satellite-based technologies that provide accurate positioning, navigation, and timing worldwide. While GPS is the U.S. system, GNSS is the broader term that includes other systems like GLONASS (Russia), Galileo (EU), and BeiDou (China). Together, GPS and GNSS ensure reliable navigation, route planning, and maritime safety across global shipping operations