RTK rover with PC application (RTKLIB)

Prerequisites

Hardware

• A tablet or PC running Windows 10 or Linux
• A dual-frequency GNSS antenna
• An u-blox ZED-F9P-0xB receiver

Software

• The latest version of the software RTKLIB-ex > Position calculation in RTK using RTKLIB for centimeter-level geolocation.

Connection and configuration

Connecting the GNSS antenna

• Connect the antenna + ZED-F9P receiver via USB.

• Then open the Device Manager and check the COM port created under Windows or the mount point /dev/ttyXXX for Linux.

RTKLIB

RTKLIB converts the positioning signal from the GNSS antenna using an RTCM3 correction (Centipede-RTK Network for example) into a precise geolocation signal accurate to the centimeter level when conditions allow.

• Download the latest version of RTKLIB version Rtkexplorer demo5.
• Extract it into the folder of your choice.
• Open RTKNavi.

• Download this configuration file.
• Click option ...
• Click LOAD and select the previously downloaded file, then click OK.

This automatically configures several RTKLIB parameters.

• Click the I icon at the top right.
• Click ROVER > Opt.

• Modify the COM7 port (USB input of the GNSS antenna) if needed according to your configuration.
• Download this configuration file.
• Click ROVER > Cmd.

• Click LOAD and select the previously downloaded file.
• Check Commands at startup.

This loads parameters that are injected into the ZED-F9P module at each startup.

• Click Base Station > Opt.
• Change the Mountpoint to the nearest Centipede base station to your location.

• Click the O icon at the top right.
• Click Solution > Option.
• Modify the COM9 port (RTKLIB NMEA output) if needed according to your configuration.

• Click EXIT and reopen RTKNavi to save the parameters.

First start

• Click Start and wait (from 30 seconds to several minutes) for a FIX RTK position.

The receiving antenna must of course be placed outdoors in an open environment.