Centimetre-Accurate Positioning. Built for Africa.

Global Navigation Satellite Systems — GPS (US), GLONASS (Russia), Galileo (EU) and BeiDou (China). A receiver that tracks several constellations sees more satellites, fixes faster and holds a fix under trees or next to a shed wall.

Multi-constellation, multi-frequency receivers are the practical baseline for RTK work in South Africa.

RTK compares the satellite signals arriving at a reference station of precisely known coordinates with those arriving at your receiver. The shared errors cancel, and your position resolves to centimetres — in real time, while the machine is moving.

Accuracy degrades gradually with distance from the reference station, which is why network density matters more than headline numbers.

Networked Transport of RTCM via Internet Protocol. Instead of a radio link to a base station on your own farm, your receiver or controller connects over mobile data to a caster, authenticates, and subscribes to a mount point that streams corrections.

You need: caster address, port, mount point, username and password. Most modern controllers have an NTRIP client built in.

Corrections are transmitted as RTCM messages — satellite observations and reference-station coordinates, not a finished position. Your receiver does the maths locally, which is why the fix stays yours and the data volume stays small.

Typical streams run at roughly a kilobyte per second, so a month of daily field work is modest mobile data.

A base station is a receiver bolted to a known point, logging continuously. Owning one means surveying it in, powering it, securing it and maintaining it. Subscribing to a network means someone else does all of that.

A network solution also removes single-point failure: if one reference goes down, neighbouring stations carry the area.

The rover is whatever you are positioning — a tractor's guidance receiver, an RTK drone, a survey pole, a dozer blade or a tracked asset. It consumes the correction stream and outputs a corrected position to the system that needs it.

Anything with an NTRIP client and a mobile connection can be a rover.