RTCM correction messages for the satellites of Navigation Systems (GPS, GLONASS, Beidou, Galileo) are necessary for RTK centimeter level precise positioning. This level of accuracy is required for autonomous vehicles, robots and drones, land survey and so on.
RTCM correction messages are generated by RTK base stations also called continuously operating reference stations (CORS) and delivered to target GNSS receivers over Internet or radio channel. NTRIP is the common protocol for transmitting RTCM corrections over Internet. NTRIP caster gets RTCM messages from CORS stations and streams them to multiple subscribers (such as autonomous robots) connected to the caster.
You can select existing reference station streaming RTCM data to RTKdata.online or set up your own station and connect it to our NTRIP caster free of charge.
On Reference Stations Map page we also aggregate CORS station locations from other popular NTRIP casters such as RTK2GO and you can get connection credentials by clicking the station icon.