DJI D-RTK 3 Multifunctional Station | Maximized Precision, Enhanced Range
The DJI D-RTK 3 Multifunctional Station integrates high-performance antennas and receiver modules capable of tracking and resolving data from major global satellite navigation systems. It supports multiple data transmission links and can analyze device position and orientation through its built-in high-performance inertial measurement unit. With these outstanding features, the D-RTK 3 can serve as a base station to provide centimeter-level positioning for multiple drones simultaneously or extend the operational range of drones in relay station mode. Additionally, the rover station mode, combined with the DJI Enterprise App and DJI Terra, offers a one-stop solution for high-precision aerial surveying applications.
Features
- Small Size, 163mm × 89mm, 1.26kg, hold in one hand
- Physical buttons and indicator lights used for power on/off, mode switching, and status display
- Standard 5/8 inch, easy to utilize a 3rd-party pole. USB Type-C at the bottom for charging and debugging
- Four external antennas, Max 25km
- Self-developed RTK chip with good stability, high-performance air dielectric antenna with physical filtering design, phase-center accuracy ≤ 2mm. Self-developed positioning algorithm, high received signal-to-noise ratio (SNR)
4h/Relay, 7h/Base, 10h/Rover
- DJI offers the optional DJI D-RTK 3 Survey Pole and Tripod Kit (sold separately)
Centimeter-Level Precision
The D-RTK 3 is equipped with advanced air dielectric antennas that deliver millimeter-level phase-center accuracy. This precision is achieved through support for five global navigation satellite systems (GNSS) operating across 19 frequency points. Such extensive satellite compatibility ensures reliable and accurate positioning in diverse environments, whether in densely built urban areas or remote, challenging terrains.
Three Operational Modes
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Broadcast Mode: Broadcast Mode enables the D-RTK 3 to provide centimeter-level positioning data to multiple drones simultaneously without the need for additional configuration.
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Relay Mode: Relay Mode extends the operational range of drones, making it particularly useful in environments with significant signal obstructions, such as urban landscapes with tall buildings or remote areas with natural barriers.
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Rover Mode: Rover Mode transforms the station into a portable ground control point collector. This mode incorporates tilt compensation, allowing for accurate data collection even when the rover pole is not perfectly vertical.
Advanced Filtering Antenna Design
The specialized filtering antenna in the D-RTK 3 effectively manages multi-path interference and maintains reliable tracking of low-elevation satellites. This ensures consistent performance even in environments with significant signal reflections or obstructions, further contributing to the station’s precision and reliability.
DJI D-RTK 3 Multifunctional Station a High-Precision Positioning and Relay System
Applications
Surveying and Mapping
- Land Development and Earthworks
- Environmental Impact Assessments
Public Safety and Emergency Response
- Disaster Assessment and Recovery
- Accident Scene Reconstruction
Construction
- Disaster Assessment and Recovery
- Accident Scene Reconstruction
Forestry and Conservation
- Wildfire Zone Mapping
- Biodiversity and Growth Monitoring
Compatibility
Base Station Mode:
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Enterprise:
- DJI Matrice 4 series
- DJI Matrice 3D/3TD*
- DJI Matrice 300/350 RTK*
- DJI Matrice 30 Series*
- DJI Mavic 3 Enterprise Series*
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Agriculture:
- T60*
- T50/T25*
- T40/T20P*
- DJI FlyCart 30*
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Professional Filmmaking:
* Currently, only manual D-RTK 3 position calibration is supported. Please refer to official updates for future feature enhancements.
Relay Station Mode:
- Supports Matrice 4E/Matrice 4T
Rover Station Mode:
- Supports Bluetooth 5.1, compatible with Android 10 and above
Specifications
GNSS RECEIVER
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GNSS Frequency:
- GPS: L1C/A, L2C, L5
- BDS: B1I, B2I, B3I, B1C, B2a, B2b
- GALILEO: E1, E5a, E5b, E6
- GLONASS: L1, L2
- QZSS: L1C/A, L2C, L5
- L-Band
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System Accuracy:
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Base Station Mode (Broadcast Mode) and Relay Station Mode:
- Base Station Accuracy:
- Single Point Accuracy (Uncalibrated):
- Horizontal: 1.5 m (RMS)
- Vertical: 3.0 m (RMS)
- Satellite-Based Differential Accuracy:
- Convergence Time: 20 mins
- Horizontal: 30 cm (RMS)
- Vertical: 40 cm (RMS)
- Network RTK Calibration**:
- Horizontal: 1.0 cm (RMS) + 1 ppm
- Vertical: 3.0 cm (RMS) + 1 ppm
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Rover Station Mode*:
- RTK Accuracy (Fixed Survey):
- Horizontal: 0.8 cm (RMS) + 1 ppm
- Vertical: 1.5 cm (RMS) + 1 ppm
- RTK Accuracy (Tilt Survey)***:
- Angle Range: 0° to 60°
- Horizontal: 8 mm + 0.7 mm/° tilt (accuracy <2 cm within 30°)
* Measurement accuracy depends on various factors. This value is obtained under normal conditions with an unobstructed view, good satellite distribution, low ionospheric activity, and no electromagnetic interference or multipath effects.
** Base station calibration coordinate accuracy depends on various factors. For surveying, high-precision flight paths, etc., it is recommended to calibrate during periods of inactive ionosphere, in open, unobstructed environments with no electromagnetic interference or multipath effects, using four or more GNSS systems.
*** Intense vibrations and rapid rotations can affect the accuracy of the inertial measurement unit.
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Satellite-Based Precise Point Positioning*:
- Supported Frequencies: BDS B2b, GALILEO E6, L-BAND
- Convergence Time: 20 mins
- Horizontal: 30 cm (RMS)
- Vertical: 40 cm (RMS)
* Measurement accuracy depends on various factors. This value is obtained under normal conditions with an unobstructed view, good satellite distribution, low ionospheric activity, and no electromagnetic interference or multipath effects.
** Will be supported in later versions.
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Differential Data Transmission Format:
- When used as a base station or relay station, records RTCM 3.2 raw observation data in DAT format.
- In rover station mode or in calibration mode for base and relay stations:
1. Supports RTCM v3.0, v3.1, v3.2, v3.3, MSM4, MSM5, MSM6, MSM7 protocols.
2. It is recommended to use receivers that support four or more GNSS systems.
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Initialization Reliability:
VIDEO TRANSMISSION
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Video Transmission System:
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Operating Frequency:
- Relay Station Mode:
- O4: 2.4 GHz/5.2 GHz/5.8 GHz
- Broadcast mode:
- Rover Station Mode:
Operating frequency allowed varies among countries and regions. Please refer to local laws and regulations for more information.
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Transmitter Power (EIRP):
- 2.4000 GHz to 2.4835 GHz:
- <33 dBm (FCC)
- ＜20 dBm (CE/SRRC/MIC)
- 5.150 GHz to 5.250 GHz:
- 5.725 GHz to 5.850 GHz:
- <33 dBm (FCC)
- <30 dBm (SRRC)
- <14 dBm (CE)
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Bluetooth:
- Protocol: Bluetooth 5.1
- Frequency: 2.400 GHz to 2.4835 GHz
- Transmitter Power (EIRP): <10 dBm
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Max Transmission Distance (unobstructed, free of interference)
- Base Station Mode, Between D-RTK 3 and the aircraft:
- FCC: 15 km
- SRRC: 12 km
- CE/JP: 8 km
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Rover Station Mode:
- Between D-RTK 3 and mobile devices: 30 m
Measured in an unobstructed outdoor environment free of interference. The above data shows the farthest communication range for one-way, non-return flights under each standard. Always pay attention to RTH reminders in the app during your flight.
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Max Transmission Distance in Relay Station Mode (unobstructed, free of interference):
- FCC
- Between the aircraft and the relay station: 25 km
- Between the relay station and the remote controller: 1 km
- SRRC
- Between the aircraft and the relay station: 12 km
- Between the relay station and the remote controller: 1 km
- CE
- Between the aircraft and the relay station: 10 km
- Between the relay station and the remote controller: 300 m
Measured in an unobstructed outdoor environment free of interference. The above data shows the farthest communication range for one-way, non-return flights under each standard. Always pay attention to RTH reminders in the app during your flight. The relay station should be placed in a elevated, unobstructed location to ensure clear communication between the remote controller and the aircraft.
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Max Transmission Distance in Relay Station Mode (unobstructed, with interference):
- Strong interference: City centers, approx. 1.5-5 km
- Medium interference: Suburban areas, approx. 5-15 km
- Micro interference: Remote areas/seasides, approx. 15-25 km
Data is tested under FCC standards in unobstructed environments of typical interference. Only to serve as a reference and provides no guarantee as to the actual flight distance.
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Max Transmission Distance in Relay Station Mode(obstructed, with interference):
- Low Interference and Obstructed by Buildings: approx. 0-0.5 km
- Low Interference and Obstructed by Trees: approx. 0.5-3 km
Data is tested under FCC standards in unobstructed environments of typical interference. Only to serve as a reference and provides no guarantee as to the actual flight distance.
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Antenna:
- OcuSync 4 directional antennas× 4, 2T4R
The antenna uses a standard reverse polarity SMA connector.
ELECTRICAL PROPERTIES
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Power:
- Relay Station: 14.5 W (max power consumption without heating; max 36.5 W with heating)
- Base Station: 7 W
- Rover Station: 6.2 W
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Supported Power Adapter:
- USB PD 3.0 protocol, output voltage 9V to 15V adapter (e.g., DJI 65W Portable Charger)
When using a non-recommended charger, such as a charger with 5V-output, the D-RTK 3 can be charged only after powering off.
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Power Output Port:
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Operating Time (Under Normal Temperature)*:
- Relay Station: 4 hrs
- Base Station：7 hrs
- Rover Station: 10 hrs
Battery performance may decrease in low temperatures; it is recommended to use power adapters that support the USB PD 3.0 protocol.
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Battery:
- LiPo
- Capacity: 6500 mAh
- Energy: 46.8 Wh
PHYSCIAL CHARACTERISTICS
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Operating Temperature:
- -20° to 55°C (-4° to 131°F)
- In normal temperature environments, charging power will be limited if the device shell temperature exceeds 48°C (118.4°F). Full power charging will resume after cooling.
- After storage/use in low temperatures, the device needs to be brought to a normal temperature environment and allowed to warm up until the internal battery temperature is >0°C (32°F) before charging.
- After storage/use in high temperatures, the device needs to be brought to a normal temperature environment and allowed to cool down until the internal battery temperature is <45°C (113°F) before charging.
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Altitude: 6000 m
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Protection Rating: IP67*
*Please make sure all rubber plug interfaces on the body are properly installed.
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Drop Resistance: 2 m drop with pole
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Dimensions: 163 × 89 mm (without OcuSync Directional Antennas)
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Weight: Approx. 1.26 kg (2.78 lbs)
