RTK for survey rovers, drones and apps
NTRIP setup for survey rovers (CHC, Stonex, Emlid), u-blox F9P modules, DJI RTK drones and Android apps – where to enter your RTK.ba connection details.
Survey controllers (CHC LandStar, Stonex Cube, Trimble Access, Carlson SurvPC…)
In the rover profile select Rover → Network / NTRIP (via the controller's internet or the modem in the receiver), enter rtk.ba : 2101 and your account, and select the AUTO mountpoint. If the software offers "Send GGA" – enable it.
Emlid Reach (Emlid Flow)
In the Emlid Flow app: Correction input → NTRIP, enter the address, port, username, password and mountpoint. Reach sends GGA automatically. Check the "FIX" status and "Age of differential".
u-blox ZED-F9P and similar modules
The module itself has no internet connection – corrections are delivered to it by an NTRIP client (u-center → Receiver → NTRIP Client, AgIO, RTKLIB str2str or an Android app) over USB/UART. For the AUTO mountpoint, the client must send GGA back to the caster.
Android phones as a modem
Apps such as Lefebure NTRIP Client or SW Maps fetch corrections over mobile data and forward them to the receiver via Bluetooth – handy for simpler rovers and retrofit systems.
DJI RTK drones
On drones with an RTK module (e.g. Matrice, Mavic 3 Enterprise RTK, Agras): in the DJI Pilot/Agras app select the RTK service Custom Network RTK (NTRIP) and enter the host, port, mountpoint and account. The remote controller must have internet access.
Related: For surveying in the national system see coordinate systems and transformations, and for a stable FIX what RTK accuracy depends on. Check coverage of your area on the map.