Build a ground base station

Used as a base station

• First download the configuration file from our website to your local computer according to the base type: mosaic-H_Current_moving_base.txt (moving station)
• Connect the module to the computer via the USB-TYPEC port, open any web browser, enter 192.168.3.1 in the address bar, and open the Mosaic-H configuration page as shown below.
• Click Admin->Configurations to enter the configuration page

• Click the Upload Configuration icon to upload the configuration file

• Click OK and then click the Save button to save the configuration

• Click Admin->Reset to enter the reset page, select Soft and click OK to restart. You can also unplug the USB cable and perform a power cycle.

Place the base station in an open area and click GNSS->Satellites and Signals to check the satellite search status. Once the Tracking and Position values are stable (as shown below), RTCM data can be forwarded by the ground station.

Implementing RTK with MissionPlanner

Connect the Mosaic-H GPS to your computer via USB. Once connected, the Mosaic-H will have two virtual USB COM ports. Virtual USB COM Port 1 corresponds to USB1 in the user interface, and Virtual USB COM Port 2 corresponds to USB2. Typically, USB1 is used to transmit NMEA/GGA data, and USB2 is used to output RTCM data.

• First enter the computer device manager to view the COM port corresponding to USB2

• On the missionPlanner->SETUP->Optional Hardware->RTK/GPS Inject page, connect and select the COM port corresponding to the Mosaic-H Virtual USB COM Port2 and click Connect. (Note that the UBlox M8P/F9P automatic configuration cannot be selected)

• When Mosaic-H is used as a base station, it automatically selects the appropriate positioning accuracy based on signal quality. There is no need to set the accuracy and measurement time.
• When the Base, GPS, Glonass, BeiDou, and Galieo icons in the RTCM column all turn green, the ground station starts sending RTCM data to the flight controller via digital transmission.
• Click MissionPlanner->DATA page, you can see that the rover side has been RTK-Fixed. (The rover side can use F9P or Mosaic-H)

• Now go back to the Mosaic-H configuration page and click on the NMEA/SBF Out page. You can see that the USB2 port has started to output the RTCM data stream.