RTK combines satellite positioning with correction data from a base station, shrinking the several-meter error of standalone GNSS positioning down to centimeter level. We work through how dual-frequency positioning cancels ionospheric delay, how u-blox's ZED-F9P drove low-cost RTK into the mainstream, Trimble RTX and Japan's own Michibiki (QZSS), and the real-world example of Kubota's nationwide network of 342 RTK base stations for farm machinery — and how each of these changes what positioning accuracy you actually get.
July 20, 2026 Corporate ResearchKubota runs 2.5-3x Yanmar's revenue. From company history and a five-year scale comparison, to a large-tractor and combine-harvester spec showdown, autonomous driving technology, domestic facility footprints, and both companies' mid-term management plans.