What is Float RTK?

Float RTK (Real-Time Kinematic) is an intermediate GNSS positioning state where the carrier phase ambiguities have not yet been resolved to integer values but are instead estimated as floating-point numbers. This occurs when the receiver has not gathered enough information or signal quality is insufficient for a “fixed” solution. Float RTK offers improved accuracy over standard GNSS (typically 1–3 meters), but is less precise than fixed RTK. The float state is often a transitional phase; with better satellite geometry or improved signal conditions, the receiver may eventually resolve ambiguities to integers and achieve a fixed solution. Float RTK is useful for general navigation but not suitable for applications requiring centimeter-level accuracy.