RTK stands for Real Time Kinematics it is a highly accurate technique used to determine the position of a receiver using the signal received from Global Navigation Satellite-based positioning Systems (GNSS) like GPS, Galileo, BeiDou, and GLONASS. RTK uses the phase of the carrier signal to eliminate timing errors and to determine the location of a receiver. As a result, it is significantly more accurate than traditional timing based GNSS solutions found in devices like smartphones. RTK is typically used in precision surveying technology including drones.