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DJI O4 Ground Station

DJI O4 Ground Station

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  • Extends enterprise drone transmission range up to 40 km unobstructed
  • Automatic multi-band switching across sub-2G, 2.4 GHz, and 5.8 GHz
  • Gateway and Relay Modes adapt to networked or offline environments
  • Centimeter-level RTK accuracy from 5-system, 19-frequency GNSS receiver
  • Omnidirectional 12-antenna array with horizontal and vertical polarization
  • IP67-rated construction for permanent outdoor installation in harsh conditions
  • Onboard LiPo backup battery supports up to 45 minutes of emergency runtime
  • Fanless passive cooling and auto-restart for unattended continuous operations
  • Compatible with FlightHub 2, ESDK 2.0, Cloud API, and DJI Cellular Dongle 2
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  • Description
  • Specifications
  • In the Box
  • FAQ

DJI O4 Ground Station: Extended Video Transmission for Enterprise Drone Operations

The DJI O4 Ground Station is a professional-grade video transmission base station built to expand the operational reach of DJI OcuSync 4 enterprise drone systems. Supporting both Gateway Mode and Relay Mode, it serves as a core infrastructure component for enterprise teams managing dock-based autonomous operations, manually piloted fleet missions, and hybrid deployment programs.

Native integration with DJI FlightHub 2 enables centralized command, Virtual Cockpit control, and real-time signal mapping across multiple aircraft simultaneously.

Key Features and Benefits

  • Transmission range: supports up to 40 km (24.9 mi) with DJI Matrice 400 under Relay Mode.
  • Multi-band selection: auto-switches across sub-2G, 2.4 GHz, 5.2 GHz, and 5.8 GHz frequency bands.
  • Antenna array: 12-antenna system with dual polarization ensures full-directional signal coverage.
  • Dual operating modes: Gateway and Relay Modes adapt the station to networked or offline environments.
  • RTK positioning: 5-system, 19-frequency GNSS with 1.0 cm RMS Network RTK horizontal accuracy.
  • IP67 protection: fully sealed construction supports continuous exposure to dust, rain, and humidity.
  • Backup battery: onboard 3,250 mAh LiPo provides up to 45 minutes of runtime after power loss.
  • Standby efficiency: low-power mode reduces consumption to approximately 7W with no aircraft connected.
  • Thermal resilience: cold-weather heating startup activates from -40°C (-40°F) with Type 3 PoE supply.
  • Autonomous recovery: self-recovery function restarts the system automatically after outages or anomalies.

Purpose-built for environments where standard transmission setups fall short, the O4 Ground Station brings reliable, long-range connectivity to mountainous terrain, obstructed urban corridors, and remote off-grid sites.

A 12-antenna array with automatic multi-band frequency selection maintains stable links across sub-2G, 2.4 GHz, 5.2 GHz, and 5.8 GHz bands, while dual operating modes allow enterprise integrators to tailor the deployment architecture to specific site conditions and mission profiles.

Infrastructure That Scales With Your Fleet

Enterprise drone programs don't stay static — they expand to new sites, take on more complex missions, and require transmission infrastructure that scales accordingly. The O4 Ground Station is designed to be a long-term platform component, not a stopgap solution.

Its high-output RF unit improves signal penetration through dense urban obstructions, while an optimized signal-to-noise ratio enhances receiver sensitivity in complex electromagnetic environments. Centimeter-level RTK positioning from a 5-system, 19-frequency GNSS receiver adds precise location awareness to every deployment.

For fleet integrators building programs around DJI Dock 3, FlightHub 2, and enterprise aircraft, the O4 Ground Station provides the transmission backbone those programs depend on.

Compatibility and System Integration

  • Gateway Mode: integrates with DJI Dock 3 and connects directly to FlightHub 2 for fleet-wide management.
  • Relay Mode: supports DJI Matrice 400 at up to 40 km (24.9 mi) unobstructed transmission range.
  • Relay Mode: compatible with Matrice 4E, Matrice 4T, FlyCart 100, and Matrice 4D/4TD with RC Plus 2 Enterprise.
  • Ethernet connectivity: adaptive port supports PoE input with 100 Mbps minimum bandwidth requirement.
  • 4G access: pairs with DJI Cellular Dongle 2 for network connectivity in fixed-infrastructure-free environments.
  • Camera integration: up to four simultaneous 1080p H.264 streams via ONVIF and GB/T 28181 protocols.
  • Open ecosystem: ESDK 2.0 and Cloud API support third-party ADS-B, Remote ID, and command center workflows.

Applications and Use Cases

  • Autonomous dock operations: extends single-station coverage radius for DJI Dock 3 deployments significantly.
  • Critical infrastructure inspection: sustains long-range transmission for power line, pipeline, and bridge missions.
  • Emergency response: maintains video relay in obstructed or signal-degraded public safety environments.
  • Remote site monitoring: provides persistent drone coverage in locations without fixed network infrastructure.
  • Off-grid deployment: integrates with solar and photovoltaic power systems for self-sustaining field installations.
  • Fleet coordination: supports multi-aircraft monitoring and Virtual Cockpit control through FlightHub 2 integration.
  • Airspace awareness: connects ADS-B and Remote ID receivers for integrated situational awareness workflows.

The DJI O4 Ground Station solves the infrastructure gap that limits enterprise drone programs from scaling: unreliable transmission in challenging environments. By providing a purpose-built base station with dual operating modes, open ecosystem support, and hardened environmental resistance, it gives enterprise integrators the foundation to build programs that operate continuously and confidently.

Dronefly's enterprise team brings the deployment experience and system knowledge to help you integrate the DJI O4 Ground Station into your existing drone program architecture.

From FlightHub 2 configuration to multi-site relay planning, Dronefly is equipped to support your program at every stage, contact us or order directly from Dronefly today.

GNSS Receiver

  • 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 support

System Accuracy

  • Single point accuracy (uncalibrated): Horizontal 1.5 m RMS, Vertical 3.0 m RMS
  • Satellite-based differential accuracy: Horizontal 30 cm RMS, Vertical 40 cm RMS
  • Satellite-based differential convergence time: 20 minutes
  • Network RTK calibration: Horizontal 1.0 cm RMS + 1 ppm
  • Network RTK calibration: Vertical 3.0 cm RMS + 1 ppm

Video Transmission

  • Video transmission system: DJI O4 Enterprise Enhanced Video Transmission System
  • Operating frequencies: 902 MHz–928 MHz
  • Operating frequencies: 1.430 GHz–1.444 GHz
  • Operating frequencies: 2.400 GHz–2.4835 GHz
  • Operating frequencies: 5.150 GHz–5.250 GHz
  • Operating frequencies: 5.725 GHz–5.850 GHz

Transmission Range

  • Matrice 400 to O4 Ground Station: Up to 40 km (IC)
  • Other supported aircraft to O4 Ground Station: Up to 30 km (IC)
  • Relay mode: Recommended within 1 km, maximum 3 km
  • Strong interference: Approximately 1.8–6 km
  • Medium interference: Approximately 6–18 km
  • Weak interference: Approximately 18–40 km
  • Buildings obstruction: Approximately 0–0.5 km
  • Trees obstruction: Approximately 0.5–3 km

Antenna

  • OcuSync 4 Pro external directional antennas ×4
  • OcuSync 4 Pro internal directional antennas ×8
  • 2.4G / 5.2G / 5.8G: 2T4R
  • Sub-2G: 2T2R
  • Reverse polarity SMA connector

Network Access

  • Ethernet access: Adaptive Ethernet port
  • Required bandwidth: ≥100 Mbps
  • Required latency: ≤100 ms
  • 4G access: Requires DJI Cellular Dongle 2

Power & Electrical

  • Power interface: WAN PoE-in
  • Power interface: LAN PoE-in
  • Ethernet cable requirement: Cat 6 or higher outdoor-rated waterproof cable
  • Maximum cable length: 100 m
  • Maximum power consumption: 65 W
  • Typical power consumption (Gateway mode): 17.1 W
  • Typical power consumption (Relay mode - Dock 3 / Matrice 4): 31.7 W
  • Typical power consumption (Relay mode - Matrice 400): 37.9 W
  • Low-power mode: 7 W

Supported Power Supply

  • DJI Dock 3 PoE output port
  • IEEE 802.3bt Type 4 (PoE++): 52–57 V, up to 99.9 W
  • IEEE 802.3bt Type 3 (PoE++): 50–57 V, up to 60 W
  • IEEE 802.3at Type 2 (PoE+): 50–57 V, up to 30 W

Backup Battery

  • Battery type: LiPo
  • Capacity: 3250 mAh
  • Energy: 23.4 Wh
  • Operating time (Gateway mode): Approximately 45 minutes
  • Operating time (Relay mode): Approximately 30 minutes
  • Fully charged runtime in Gateway mode: Approximately 2 hours
  • Supports 9 V or 12 V PD charging
  • Charge time: Approximately 2.5 hours with a 65 W PD charger

Physical Characteristics

  • WAN/LAN port surge protection: Up to 10 kA
  • RJ45 surge protection: 1.5 kA
  • Operating temperature (Type 4 PoE++): -40°C to 55°C
  • Operating temperature (Type 3 PoE++): -30°C to 55°C
  • Operating temperature (Type 2 PoE+): -20°C to 55°C
  • PoE auto wake-up: Supported
  • Cold-weather heating startup: Supported with Type 3 PoE++ or higher
  • Maximum altitude: 6000 m
  • Ingress protection rating: IP67
  • Impact protection rating: IK07
  • Dimensions: 170 × 170 × 352 mm
  • Weight: 2.68 kg

Mounting

  • Expansion bolt mounting: φ6 × 70 mm
  • M6 screw mounting: 60 mm hole center spacing

Supported Software

  • DJI Enterprise app
  • FlightHub 2
  • FlightHub 2 On-Premises Version
  • FlightHub Sync
  • DJI Cloud API

External Device Support

  • Supports cameras using ONVIF protocol
  • Supports cameras using GB/T 28181 protocol
  • Supports up to four simultaneous 1080p H.264 video streams

Open Ecosystem

  • ESDK 2.0
  • 1x DJI O4 Ground Station
  • 1x USB-C to USB-C Cable
  • 2x Ethernet Connector
  • 4x Expansion Bolts
  • 1x Installation Card
  • 1x Screws and Tools
What is the DJI O4 Ground Station designed for?

The DJI O4 Ground Station is an enterprise video transmission base station built to extend the range and reliability of DJI OcuSync 4 drone systems across demanding operational environments. It supports two operating modes — Gateway Mode for networked FlightHub 2 integration and Relay Mode for offline or obstructed environments — making it suitable for dock-based autonomous operations, manually piloted enterprise missions, and hybrid fleet programs. It is designed for permanent or semi-permanent outdoor installation at elevated locations.

What transmission range does the DJI O4 Ground Station achieve?

Under IC standards in unobstructed, interference-free conditions, the O4 Ground Station supports up to 40 km (24.9 mi) with the DJI Matrice 400 in Relay Mode, and up to 30 km (18.6 mi) with other compatible aircraft in Gateway Mode. Real-world performance varies by environment — dense urban areas with strong interference yield approximately 1.8 to 6 km, while open or remote areas with weak interference support 18 to 40 km. The Relay Mode link between a remote controller or Dock 3 and the O4 Ground Station is recommended within 1 km, with a maximum of 3 km.

Which aircraft and systems are compatible with the DJI O4 Ground Station?

In Gateway Mode, the O4 Ground Station supports DJI Dock 3. In Relay Mode, it is compatible with the DJI Matrice 400, Matrice 4E, Matrice 4T, FlyCart 100, and Matrice 4D/4TD when paired with DJI RC Plus 2 Enterprise. For software integration, it supports DJI FlightHub 2, FlightHub 2 On-Premises, FlightHub Sync, and DJI Cloud API. Third-party IP cameras using ONVIF or GB/T 28181 protocols are also supported, along with ADS-B and Remote ID receivers via MQTT through ESDK 2.0.

How does the O4 Ground Station handle power and backup?

The O4 Ground Station is powered via PoE and supports IEEE 802.3bt Type 4, Type 3, and Type 2 standards, as well as the DJI Dock 3 PoE output port. It also integrates with solar and photovoltaic systems for off-grid deployment. Type 2 (PoE+) supports Gateway Mode only. An onboard 3,250 mAh LiPo backup battery provides approximately 45 minutes of runtime in Gateway Mode and 30 minutes in Relay Mode following primary power loss. When fully charged, the battery supports approximately 2 hours of Gateway Mode operation.

Can the DJI O4 Ground Station operate without network connectivity?

Yes. Relay Mode is specifically designed for environments without network coverage or with severe signal obstruction. In this mode, the O4 Ground Station is deployed at an elevated location to extend video transmission between aircraft and the remote controller or Dock 3, without requiring a cloud or Ethernet connection. This makes it suitable for mountainous terrain, remote worksites, and any environment where fixed network infrastructure is unavailable.

What open ecosystem and developer integration options does the O4 Ground Station support?

The O4 Ground Station supports ESDK 2.0 and DJI Cloud API, enabling integration with third-party platforms and custom enterprise workflows. Through MQTT protocol, it connects with external ADS-B receivers and Remote ID systems for airspace awareness. It also supports up to four simultaneous 1080p H.264 IP camera streams via ONVIF and GB/T 28181 protocols, including PTZ control, making it a flexible infrastructure component for integrated command center and situational awareness deployments.