K9 Mini RTK measurement system, compact body, set advanced technology, excellent measurement performance in one, to save time and effort. This is a Samsung six frequency measurement satellite receiver based on Beidou satellite navigation system, which is independently developed from inside to outside. Beidou's unique IGSO satellite design can locally enhance China's region, and its satellite signal is superior. It can also receive China's compass satellite navigation system (Compass), the United States' global positioning system (GPS) and Russian GLONASS satellite signal, and can be customized compatible with other satellite systems.