Description of each port 1.ON/OFF：The equipment switch must be turned on when in use;2.RADIO：The radio function switch must be turned on when using the radio RTK;3.NET：The network signal indicator will flash yellow when the network is smooth;4.RTK：The signal indicator light flashes at a faster frequ

C-RTK is a basic precise positioning service basic system based on satellite systems (compatible with Beidou, GPS, GLONASS, Galileo), using ground-based differential enhancement stations and self-developed positioning algorithms, through Internet technology for big data operations, and RTK base stat