O4 Ground Station

The DJI O4 Ground Station is a professional wide-area transmission system designed to extend the range and reliability of DJI enterprise drone operations beyond what a standard remote controller can achieve. A 12-antenna omnidirectional array with automatic multi-band frequency selection pushes transmission range up to 40km when paired with the DJI Matrice 400, maintaining a crisp, stutter-free video feed even through dense urban environments and challenging terrain.

Two operating modes cover every deployment scenario. Gateway Mode connects directly to DJI FlightHub 2 via Ethernet or cellular for real-time video, remote control, and Virtual Cockpit access. Relay Mode extends range offline into valleys and obstructed areas beyond network coverage, bridging DJI Dock 3 or a remote controller to the aircraft.

Built for permanent outdoor installation, it carries IP67 dust and water resistance, IK07 impact protection, EN/IEC 61643-21 Category C lightning protection, fanless passive cooling, and a built-in backup battery with approximately 45 minutes runtime after power loss.

GNSS Receiver:

• Systems: GPS, BeiDou, Galileo, GLONASS, QZSS, L-Band
• Frequencies tracked: 19 across five satellite systems
• GPS: L1C/A, L2C, L5
• BeiDou: B1I, B2I, B3I, B1C, B2a, B2b
• Galileo: E1, E5a, E5b, E6
• GLONASS: L1, L2
• QZSS: L1C/A, L2C, L5
• Single Point Accuracy (uncalibrated): Horizontal 1.5m RMS, Vertical 3.0m RMS
• Satellite-Based Differential: Horizontal 30cm RMS, Vertical 40cm RMS (after 20min convergence)
• Network RTK Calibration: Horizontal 1.0cm + 1ppm RMS, Vertical 3.0cm + 1ppm RMS

Video Transmission:

• System: DJI O4 Enterprise Enhanced Video Transmission
• Antenna array: 4x external directional + 8x internal directional (12 total)
• MIMO configuration: 2.4G/5.2G/5.8G: 2T4R; Sub-2G: 2T2R
• Automatic multi-band selection: sub-2GHz, 2.4GHz, 5.2GHz, 5.8GHz
• Operating frequencies: 902-928MHz, 1.430-1.444GHz, 2.4-2.4835GHz, 5.15-5.25GHz, 5.725-5.85GHz

Maximum Transmission Range (CE standard, unobstructed, interference-free):

• DJI Matrice 400 + O4 Ground Station: 25km
• Other compatible aircraft + O4 Ground Station: 18km
• Remote controller/DJI Dock 3 to O4 Ground Station (Relay Mode): recommended within 300m, max 1km

Maximum Transmission Range (IC standard, unobstructed, interference-free):

• DJI Matrice 400 + O4 Ground Station: 40km
• Other compatible aircraft + O4 Ground Station: 30km
• Remote controller/DJI Dock 3 to O4 Ground Station (Relay Mode): recommended within 1km, max 3km

Transmission Range with Interference (IC standard, Matrice 400):

• Weak interference (open spaces, remote areas): approx. 18 to 40km
• Medium interference (suburban, city parks): approx. 6 to 18km
• Strong interference (dense buildings, residential): approx. 1.8 to 6km

Compatible Aircraft:

• DJI Matrice 400 (Relay Mode only)
• DJI Matrice 4D / 4TD (with DJI Dock 3) - Gateway and Relay Mode
• DJI Matrice 4E, 4T (Relay Mode)
• DJI Matrice 4D / 4TD with RC Plus 2 Enterprise (Relay Mode)
• DJI FlyCart 100 (Relay Mode)

Network Access:

• Ethernet: adaptive port, requires min 100Mbps bandwidth and max 100ms latency
• 4G cellular: via DJI Cellular Dongle 2 (sold separately)
• Max cable distance from network switch: 100m

Power:

• Interface: PoE (WAN and LAN ports)
• Supported: IEEE 802.3bt Type 4 (PoE++), Type 3 (PoE++), Type 2 (PoE+)
• Gateway Mode typical power: 17.1W (without heating); max 65W (with heating)
• Relay Mode typical power: 31.7W (with Dock 3/M4); 37.9W (with M400)
• Low-power standby (Gateway Mode): 7W

Backup Battery:

• Type: LiPo
• Capacity: 3250mAh / 23.4Wh
• Runtime after power loss: approx. 45 min (Gateway Mode), approx. 30 min (Relay Mode)
• Full charge runtime (Gateway Mode): approx. 2 hours
• Charge time (65W PD): approx. 2.5 hours

Physical:

• Dimensions: 170 x 170 x 352mm (L x W x H)
• Weight: 2.68kg
• Mounting: Expansion bolt (M6x70mm) or M6 screw mounting (60mm hole spacing)
• Max operating altitude: 6,000m

Environmental Protection:

• Ingress protection: IP67
• Impact protection: IK07
• Lightning protection: EN/IEC 61643-21 Category C (10kA total discharge, WAN/LAN ports)
• Operating temperature: -40°C to 55°C (varies by PoE supply type)
• Cooling: Fanless passive

IP Camera Support:

• Protocols: ONVIF and GB/T 28181
• Max simultaneous streams: 4x 1080p H.264
• Remote PTZ control via FlightHub 2

Software and Ecosystem:

• DJI Enterprise app (Android, for deployment and commissioning)
• DJI FlightHub 2 (cloud platform)
• DJI FlightHub 2 On-Premises Version
• DJI Cloud API
• ESDK 2.0 (MQTT-based open ecosystem)
• Third-party Remote ID and ADS-B receiver support via MQTT