The DJI O4 Ground Station is a robust wide-area video transmission system that extends the link coverage of DJI enterprise drones, helping teams overcome signal limits and connectivity dead zones across large sites. A 12-antenna array with automatic multi-band selection and two operating modes, Gateway Mode and Relay Mode, keeps missions connected. Maintenance-free by design, it is built to drive 24/7 unattended operations.
Why Choose the DJI O4 Ground Station?
12-antenna array
An omnidirectional high-gain array of 12 antennas with horizontal and vertical polarisation, paired with automatic multi-band selection to help bypass interference.
Two operating modes
Gateway Mode for network connectivity via FlightHub 2, and Relay Mode for offline or obstructed reach where no network is available.
Built for 24/7 duty
IP67 ingress and IK07 impact protection, PoE power with a backup battery, and a maintenance-free design for continuous unattended operation.
Extend your link across large sites
A high-performance RF unit with high output boosts signal penetration and coverage, while an optimised signal-to-noise ratio (SNR) improves receiver sensitivity in complex electromagnetic environments. The DJI O4 Enterprise Enhanced Video Transmission System carries the link across difficult terrain.
The omnidirectional high-gain antenna uses 12 antennas with horizontal and vertical polarisation (OcuSync 4 Pro external directional x4 plus internal directional x8). Configurations run 2T4R on 2.4G/5.2G/5.8G and 2T2R on Sub2G, with standard reverse-polarity SMA connectors. Automatic multi-band selection shifts across sub2G, 2.4 GHz, 5.2 GHz, 5.8 GHz and other bands to help bypass interference; operating frequency varies by country or region.
Transmission distance, qualified by condition
All transmission distances below are one-way, non-return, unobstructed and free of interference. Under IC, the Matrice 400 to O4 Ground Station link reaches 40 km, other aircraft to O4 Ground Station reach 30 km, and the remote controller or DJI Dock 3 to O4 Ground Station link in Relay Mode is recommended within 1 km and reaches a maximum of 3 km.
Under SRRC, the Matrice 400 link reaches 25 km, other aircraft reach 18 km, and the relay link is recommended within 1 km with a maximum of 3 km. Under CE, the Matrice 400 link reaches 25 km, other aircraft reach 18 km, and the relay link is recommended within 300 m with a maximum of 1 km.
Note: the DJI Matrice 400 is only supported in Relay Mode on the O4 Ground Station.
Distances with interference were tested with the Matrice 400 under IC: strong interference (dense buildings or residential) approximately 1.8 to 6 km; medium interference (suburban or parks) approximately 6 to 18 km; weak interference (open or remote) approximately 18 to 40 km. Obstructed with interference, also tested with the Matrice 400 under IC: buildings approximately 0 to 0.5 km; trees approximately 0.5 to 3 km.
Gateway Mode for network connectivity
Gateway Mode connects directly to DJI FlightHub 2 via Ethernet or the DJI Cellular Dongle 2 (sold separately), delivering low-latency, high-bandwidth video. It frees the station from DJI Dock 3 proximity constraints, extending coverage up to 30 km as stated by DJI under the same one-way, unobstructed, interference-free conditions.
After a flight, FlightHub 2 generates a Signal Map that highlights weak coverage zones to help position ground stations precisely. Virtual Cockpit lets operators remotely control the aircraft and manually override preset routes within the station's coverage area. Network access uses an Ethernet adaptive port requiring at least 100 Mbps bandwidth and no more than 100 ms latency, or 4G via the DJI Cellular Dongle 2 (sold separately and not available in all countries).
Relay Mode for offline reach
Relay Mode supports offline or obstructed environments where no network connection is available. DJI recommends an elevated, unobstructed placement to clear obstructions, and multiple devices can be rotated for higher utilisation.
An integrated high-gain RTK module tracks 19 frequencies across five global satellite systems. Network RTK Calibration accuracy is 1.0 cm (RMS) + 1 ppm horizontal and 3.0 cm (RMS) + 1 ppm vertical, recommended in low-ionospheric, open, interference-free conditions with a Network RTK mountpoint of at least four constellations. Uncalibrated single-point accuracy is 1.5 m (RMS) horizontal and 3.0 m (RMS) vertical.
Durability, power and integration
The O4 Ground Station carries IP67 ingress protection, IK07 impact protection and an operating altitude up to 6000 m. WAN and LAN Ethernet ports support up to 10 kA total discharge current surge protection, meeting EN/IEC 61643-21 Category C. It is PoE-powered on WAN and LAN, drawing from a DJI Dock 3 PoE output or third-party IEEE 802.3bt supplies; Type 2 (PoE+) supports Gateway Mode only. A LiPo backup battery (3250 mAh / 23.4 Wh) provides an estimated runtime of approximately 45 minutes in Gateway Mode or 30 minutes in Relay Mode at room temperature after power loss.
- Deployment and commissioning via the DJI Enterprise app (Android).
- Cloud integration with FlightHub 2, FlightHub 2 On-Premises, FlightHub Sync and DJI Cloud API.
- External device support for cameras using ONVIF and GB/T 28181 protocols, up to 4 simultaneous 1080p H.264 streams.
- Open ecosystem via ESDK 2.0.
- Smart low-power mode with PoE auto wake-up on cable insertion or power restoration.
Technical specifications
| Dimensions | 170 × 170 × 352 mm (L × W × H). |
|---|---|
| Weight | 2.68 kg. |
| Video transmission | DJI O4 Enterprise Enhanced Video Transmission System. |
| Antenna | Omnidirectional high-gain array of 12 antennas with horizontal and vertical polarisation (OcuSync 4 Pro external directional x4 plus internal directional x8). 2.4G/5.2G/5.8G: 2T4R; Sub2G: 2T2R. Standard reverse-polarity SMA connector. |
| Multi-band selection | Automatic selection across sub2G, 2.4 GHz, 5.2 GHz, 5.8 GHz and other bands. Operating frequency varies by country or region. |
| Max transmission distance (IC) | One-way, non-return, unobstructed, free of interference: Matrice 400 to O4 Ground Station 40 km; other aircraft to O4 Ground Station 30 km; remote controller or DJI Dock 3 to O4 Ground Station (Relay Mode) recommended within 1 km, maximum 3 km. |
| Max transmission distance (SRRC) | One-way, non-return, unobstructed, free of interference: Matrice 400 25 km; other aircraft 18 km; relay recommended within 1 km, maximum 3 km. |
| Max transmission distance (CE) | One-way, non-return, unobstructed, free of interference: Matrice 400 25 km; other aircraft 18 km; relay recommended within 300 m, maximum 1 km. |
| GNSS frequency | 19 frequencies across five systems: 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. |
| RTK accuracy (calibrated) | Network RTK Calibration: Horizontal 1.0 cm (RMS) + 1 ppm; Vertical 3.0 cm (RMS) + 1 ppm. Recommended in low-ionospheric, open, interference-free conditions with a Network RTK mountpoint of at least four constellations. |
| RTK accuracy (single-point) | Horizontal 1.5 m (RMS); Vertical 3.0 m (RMS). |
| Ingress and impact | IP67 and IK07. |
| Operating altitude | Up to 6000 m. |
| Operating temperature | PoE++ Type 4: -40°C to 55°C; Type 3: -30°C to 55°C; PoE+ Type 2: -20°C to 55°C. The 55°C upper limit accounts for solar radiation; cold-weather heating startup requires PoE++ Type 3 or higher. |
| Surge protection | WAN/LAN Ethernet ports support up to 10 kA total discharge current, meeting EN/IEC 61643-21 Category C. |
| Power | PoE-in on WAN and LAN. Supported supplies: DJI Dock 3 PoE output, or third-party IEEE 802.3bt Type 4 (PoE++), Type 3 (PoE++), Type 2 (PoE+). Type 2 supports Gateway Mode only. |
| Power consumption | Gateway Mode: max 65 W (including heating), typical 17.1 W, low-power 7 W. Relay Mode: max 65 W, typical 31.7 W (with Dock 3 or Matrice 4 Series) or 37.9 W (with Matrice 400). |
| Backup battery | LiPo 3250 mAh / 23.4 Wh. Estimated runtime after power loss approximately 45 min (Gateway Mode) or 30 min (Relay Mode) at room temperature. Charging via 9V/12V PD; DJI 65W Portable Charger recommended. |
| Network access | Ethernet adaptive port (at least 100 Mbps bandwidth and no more than 100 ms latency) or 4G via DJI Cellular Dongle 2 (sold separately; not available in all countries). |
| External device support | Cameras using ONVIF and GB/T 28181 protocols; up to 4 simultaneous 1080p H.264 streams. |
| Mounting | Expansion bolt φ6 × 70 mm, or M6 screws with 60 mm hole-centre spacing. |
| Ethernet cable | Cat 6 or above outdoor-rated waterproof twisted pair, maximum 100 m, outer diameter 5.5 to 6.5 mm. |
All maximum transmission distances are one-way, non-return, unobstructed and free of interference, and real outcomes depend on environment and regulatory region.
Compatibility guidance
Confirm your exact aircraft and operating mode with GoUAV before ordering, as mode support differs by platform. The DJI Matrice 400 is only supported in Relay Mode on the O4 Ground Station.
- Matrice 400: Relay Mode only.
- Matrice 4D and 4TD (with DJI Dock 3): Gateway Mode; also Relay Mode.
- Matrice 4E and Matrice 4T: Relay Mode.
- Remote controller: DJI RC Plus 2 Enterprise.
- Works with DJI Dock 3 and FlightHub 2.
Frequently asked questions
What does the O4 Ground Station do?
It is a wide-area video transmission system that extends a DJI enterprise drone's link coverage to overcome signal limits and connectivity dead zones on large sites, using a 12-antenna array and automatic multi-band selection.
What is the difference between Gateway Mode and Relay Mode?
Gateway Mode connects to FlightHub 2 over Ethernet or the DJI Cellular Dongle 2 for network connectivity. Relay Mode provides offline or obstructed reach where no network connection is available, and benefits from elevated, unobstructed placement.
How far can it transmit?
All figures are one-way, non-return, unobstructed and free of interference. Under IC, the Matrice 400 link reaches 40 km and other aircraft reach 30 km; under SRRC and CE, the Matrice 400 reaches 25 km and other aircraft reach 18 km. Relay links to a controller or Dock 3 are recommended within 1 km (300 m under CE) with lower maximum ranges. Real results depend on environment and region.
Which aircraft are compatible?
The Matrice 400 is supported in Relay Mode only. The Matrice 4D and 4TD (with DJI Dock 3) support Gateway Mode and Relay Mode, while the Matrice 4E and Matrice 4T support Relay Mode. It works with DJI Dock 3, FlightHub 2 and the DJI RC Plus 2 Enterprise controller.
How is it powered?
It is PoE-powered on WAN and LAN, from a DJI Dock 3 PoE output or third-party IEEE 802.3bt supplies. A LiPo backup battery provides an estimated 45 minutes (Gateway Mode) or 30 minutes (Relay Mode) of runtime at room temperature after power loss.
Is the DJI Cellular Dongle 2 included?
No. The DJI Cellular Dongle 2 is sold separately and is not available in all countries.
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