Base station for DJI RTK drones

This guide explains how to configure your GEOSTIX receiver as a base station to provide RTK corrections to a DJI drone via the Wi-Fi from the GEOSTIX.

Prerequisites

• A GEOSTIX receiver with up-to-date firmware
• A Wi-Fi layer connected to the GEOSTIX
• GEOSTIX APP installed on your smartphone
• A DJI RTK-compatible drone (Phantom 4 RTK, Matrice 300 RTK, Matrice 350 RTK, Mavic 3E RTK)
• DJI remote controller with GS RTK or DJI Pilot 2 app

Configure the GEOSTIX as a base station

1. Connect to the GEOSTIX via the GEOSTIX APP.

   Launch the app and select your GEOSTIX receiver from the list of available devices. See the quick guide for help on how to connect to a GEOSTIX.

2. Open the base mode configuration.

   From the “Receiver” screen, tap Base Mode Configuration.

   

3. Enter the base station coordinates.

   You can manually enter the known coordinates of your station point (longitude, latitude, height) or tap Use current position to use the current GNSS position.

   Also enter the antenna height (height of the GEOSTIX above the ground).

   

   Coordinate accuracy

   For optimal RTK accuracy, it is recommended to use precisely known station coordinates (geodetic point, static survey, etc.). Using the current position (SINGLE) introduces an absolute error of a few meters, but relative accuracy remains at centimeter level.

4. Enable base mode.

   Toggle the Start Base Mode switch. The status bar at the top of the screen changes from SINGLE to BASE, confirming that the GEOSTIX is broadcasting corrections.

   

Bluetooth connection no longer needed

Once the base mode is configured, the Bluetooth connection between the GEOSTIX and your phone via the GEOSTIX APP is no longer needed. You can disconnect your phone from the GEOSTIX.

Connect the DJI remote controller to the GEOSTIX Wi-Fi

1. Open the Wi-Fi settings on the DJI remote controller.

   On the remote controller, open the network settings and connect to the Wi-Fi network from the GEOSTIX. The SSID is the full serial number of your device (e.g., GEOSTIX-X5-00269) and the Wi-Fi password is STXYYYYY where YYYYY is the serial number (e.g., STX00269).

   Wi-Fi range

   The DJI remote controller must remain within Wi-Fi range of the GEOSTIX during the entire flight, as it receives the RTK corrections and relays them to the drone. The drone itself can fly beyond the GEOSTIX Wi-Fi range.

2. Open RTK settings in the DJI app.

   • GS RTK (Phantom 4 RTK): Tap the 3-dot icon in the upper right corner, then go to the RTK Settings tab. Select Custom network RTK from the dropdown menu.

   • DJI Pilot 2 (Matrice 300/350 RTK, Mavic 3E RTK): From the flight dashboard, navigate to Drone Settings, then select RTK. Choose Custom Network RTK.

3. Configure the NTRIP connection.

   Enter the following parameters:

   Parameter	Value
   Host	geostix.local or 192.168.84.1
   Port	2101
   Username	geostix
   Password	geostix
   Mountpoint	BASE

4. Start the connection.

   Tap Connect (GS RTK) or Start Transmitting (Pilot 2). The RTK status should turn green, indicating that the drone is receiving corrections from the GEOSTIX.

Verification

Once the connection is established, the drone should display an RTK FIX status after a few seconds. If the status remains FLOAT or SINGLE, check that:

• The GEOSTIX is in BASE mode (blue status bar)
• The remote controller is connected to the Wi-Fi from the GEOSTIX
• The NTRIP parameters are correct