PremiConventional real-time kinematic (RTK) GNSS correction services determine the magnitude of the GNSS errors by observing the satellite signals from one or several fixed reference stations. They then use IP-based communication to transfer the lump sum of all observed errors, which remains valid within a roughly 30 kilometer radius from the nearest base station, to the end user. RTK-based solutions require two-way communication between the GNSS receiver and the GNSS correction service provider and achieve centimeter-level positioning accuracy in ten to twenty seconds.

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