Drones/Payloads/DJI O4 Ground Station

DJI · Ground station

DJI O4 Ground Station

Q: Which modes does it have?

Gateway: connects to DJI FlightHub 2 over Ethernet or 4G and relays video for Dock 4 and Dock 3 drones. Relay: no internet needed; set up high, it keeps the link between drone and controller or dock over obstacles.

Q: Which drones and docks does it work with?

As a gateway with the DJI Dock 4 and Dock 3. As a relay with the Dock 4 and Dock 3, the Matrice 400, the Matrice 4E/4T and the Matrice 4D/4TD (with DJI RC Plus 2 Enterprise).

Q: What range does it cover?

Up to 40 km with the Matrice 5TD (Dock 4) or Matrice 400, and up to 30 km with other drones. In relay mode the controller or dock should be within 1 km (3 km max).

Q: How many drones can it connect at once?

One at a time. Several docks or controllers can share it one after another.

Q: What happens in a power cut?

A backup battery keeps it running for about 45 minutes as a gateway and 30 minutes as a relay, and it restarts by itself when PoE power returns.

Q: When does the IP67 rating apply?

When the Ethernet cable enters through the included sealed connector and is outdoor-rated Cat 6 or better, all covers are fitted and the screws of unused ports are tightened.

Q: How does it differ from the D-RTK 3 Relay?

The D-RTK 3 Relay only relays for the Dock 3. The O4 Ground Station also works as a gateway, supports the Dock 4, the Dock 3 and many drones, adds the sub2G band, draws only 7 W on standby and connects IP cameras (ONVIF, GB/T 28181).

Q: Can it connect IP cameras?

Yes, ONVIF and GB/T 28181 cameras with H.264 encoding, so their video shows in DJI FlightHub 2.

The link that keeps the dock flying.

Mounted high, on a roof or mast, it keeps the drone’s video and control stable in cities, mountains and industrial sites. Required for DJI Dock 4.

Ask for a quote

IP67Dust and water protection

IP67Waterproof

-40/55°CTemperature

30kmGateway coverage (Dock 3)

PoE++One cable for power and data

Roaming

Many ground stations, no gaps.

The drone hands over from one station to the next without dropping video, so a whole city or large site is covered.

Gateway & RelayConnects to FlightHub 2 over Ethernet or 4G, or relays where there is no network.
Airspace safetyA Remote ID receiver for nearby drones and aircraft.

In practice

From the roof to the mountain.

Relay

At difficult sites, the station on high ground holds the signal.

With Dock 4

The dock fits even next to high-rises.

Technical specifications

Specifications

Transmission

SystemO4 Enterprise

ModesGateway · Relay

General

ProtectionIP67

Temperature-40 to 55 °C

Dimensions170 × 170 × 352 mm

Weight2,68 kg

GNSS Receiver2

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
System Accuracy: Single Point Accuracy (Uncalibrated):
Horizontal: 1.5 m (RMS)
Vertical: 3.0 m (RMS)
Satellite-Based Differential Accuracy:
Convergence Time: 20 min
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

Video Transmission7

Video Transmission System: DJI O4 Enterprise Enhanced Video Transmission System
Operating Frequency and Transmitter Power (EIRP): 902 MHz to 928 MHz: < 30 dBm (IC), < 16 dBm (MIC)
2.400 GHz to 2.4835 GHz: < 33 dBm (IC), < 20 dBm (CE/SRRC/MIC)
5.150 GHz to 5.250 GHz: < 23 dBm (IC/CE)
5.725 GHz to 5.850 GHz: < 33 dBm (IC), < 14 dBm (CE), < 30 dBm (SRRC)
Max Transmission Distance* (unobstructed, free of interference): IC
1. Between DJI Matrice 5TD (with Dock 4)/Matrice 400** and O4 Ground Station: 40 km
2. Between other aircraft*** and O4 Ground Station: 30 km
3. Between the remote controller/DJI Dock 4/Dock 3 and O4 Ground Station (Relay Mode)****: Recommended within 1 km; maximum 3 km (unobstructed, free of interference)
SRRC
1. Between DJI Matrice 5TD (with Dock 4)/Matrice 400** and O4 Ground Station: 25 km
2. Between other aircraft*** and O4 Ground Station: 18 km
3. Between the remote controller/DJI Dock 4/Dock 3 and O4 Ground Station (Relay Mode)****: Recommended within 1 km; maximum 3 km (unobstructed, free of interference)
CE
1. Between DJI Matrice 5TD (with Dock 4)/Matrice 400** and O4 Ground Station: 25 km
2. Between other aircraft*** and O4 Ground Station: 18 km
3. Between the remote controller/DJI Dock 4/Dock 3 and O4 Ground Station (Relay Mode)****: Recommended within 300 m; maximum 1 km (unobstructed, free of interference)
Max Transmission Distance (unobstructed, with interference): Strong Interference (Dense Buildings, Residential Areas, etc.): approx. 1.8 to 6 km
Medium Interference (Suburban Areas, City Parks, etc.): approx. 6 to 18 km
Weak Interference (Open Spaces, Remote Areas, etc.): approx. 18 to 40 km
Max Transmission Distance (obstructed, with interference): Low Interference and Obstructed by Buildings: approx. 0 to 0.5 km
Low Interference and Obstructed by Trees: approx. 0.5 to 3 km
Antenna: OcuSync 4 Pro external directional antenna × 4
OcuSync 4 Pro internal directional antenna × 8
2.4G/5.2G/5.8G: 2T4R
Sub2G: 2T2R
Network Access: Ethernet Access: Adaptive Ethernet port; requires ≥ 100Mbps bandwidth and ≤ 100ms latency*
4G Access: Requires the DJI Cellular Dongle 2**

Electrical Properties8

Power Interface: Ethernet Port (PoE)
WAN: PoE-in
LAN: PoE-in
Ethernet Cable Requirements: Cat 6 or above outdoor-rated, waterproof twisted-pair cable; max length 100 m; outer diameter 5.5 to 6.5 mm
Power Consumption: Gateway Mode:
1. Max Power Consumption (Including Heating): 65 W
2. Typical Power Consumption (Without Heating): 17.1 W
3. Low-Power Mode: 7 W**
Relay Mode:
1. Max Power Consumption (Including Heating): 65 W
2. Typical Power Consumption (Without Heating):
- With DJI Dock 3/DJI Matrice 4 Series: 31.7 W
- With DJI Dock 4/Matrice 400: 37.9 W
3. Power Consumption (No Aircraft Connected):
- With DJI Dock 3/DJI Matrice 4 Series: 29.7 W
- With DJI Dock 4/Matrice 400: 30.6 W
Supported Power Supply: 1. DJI Dock 4/Dock 3 PoE Output Port
2. Third-party PoE Power Supplies:
IEEE 802.3bt Type 4 (PoE++): 52 V to 57 V output, max 99.9 W per port; operating range -40° to 55° C (-40° to 131° F)
IEEE 802.3bt Type 3 (PoE++): 50 V to 57 V output, max 60 W per port; operating range -30° to 55° C (-22° to 131° F)
IEEE 802.3at Type 2 (PoE+): 50 V to 57 V output, max 30 W per port; operating range -20° to 55° C (-4° to 131° F)
Backup Battery: LiPo
Capacity: 3250 mAh
Energy: 23.4 Wh
Backup Battery Operating Time (at room temperature): Battery preservation mode is enabled by default when powered via PoE. In the event of a sudden power loss, estimated runtime is:
Gateway Mode: approx. 45 min
Relay Mode: approx. 30 min
Backup Battery Charging: Supports 9V or 12V PD charging. DJI 65W Portable Charger is recommended before deployment. When fully charged, estimated runtime in Gateway Mode is approx. 2 hours.
Charge time (65W PD): approx. 2.5 hours
Tested PoE Power Supplies: Visit the Downloads page for the full compatibility list.

Physical Characteristics10

Ethernet Port Surge Protection: WAN/LAN Ports: Ethernet interface supports up to 10kA (total discharge current) surge protection, meeting EN/IEC 61643-21 Category C.
Operating Temperature: IEEE 802.3bt Type 4 (PoE++): -40° to 55° C (-40° to 131° F)
IEEE 802.3bt Type 3 (PoE++): -30° to 55° C (-22° to 131° F)
IEEE 802.3at Type 2 (PoE+): -20° to 55° C (-4° to 131° F)
PoE Auto Wake-Up: When connected to a Type 2 or higher PoE power supply, the device supports automatic wake-up on cable insertion or power restoration.
Cold-Weather Heating Startup: In environments from -40° to -20° C (-40° to -4° F), the device can start up via cold-weather heating mode when powered by a PoE supply of 60 W or above.
Altitude: 6000 m
Ingress Protection Rating: IP67
Impact Protection Rating: IK07
Dimensions: 170×170×352 mm (L×W×H)
Weight: 2.68 kg
Mounting: Expansion Bolt Mounting: φ6×70 mm
M6 Screw Mounting: 60 mm hole center spacing

Supported Software4

Applications: DJI Enterprise app (used with Android phones for deployment and commissioning)
Cloud Platform: FlightHub 2
FlightHub 2 On-Premises Version
FlightHub 2 FlightHub Sync
DJI Cloud API
External Device Support: Supports cameras using ONVIF and GB/T 28181 protocols
Supports up to 4 simultaneous 1080p H.264 video streams
Open Ecosystem: ESDK 2.0

Source: DJI’s official specifications, as published by the manufacturer. Values were measured in controlled conditions. Official page ↗

Before you buy

Frequently asked questions

Which modes does it have?

Gateway: connects to DJI FlightHub 2 over Ethernet or 4G and relays video for Dock 4 and Dock 3 drones. Relay: no internet needed; set up high, it keeps the link between drone and controller or dock over obstacles.

Which drones and docks does it work with?

As a gateway with the DJI Dock 4 and Dock 3. As a relay with the Dock 4 and Dock 3, the Matrice 400, the Matrice 4E/4T and the Matrice 4D/4TD (with DJI RC Plus 2 Enterprise).

What range does it cover?

Up to 40 km with the Matrice 5TD (Dock 4) or Matrice 400, and up to 30 km with other drones. In relay mode the controller or dock should be within 1 km (3 km max).

How many drones can it connect at once?

One at a time. Several docks or controllers can share it one after another.

What happens in a power cut?

A backup battery keeps it running for about 45 minutes as a gateway and 30 minutes as a relay, and it restarts by itself when PoE power returns.

When does the IP67 rating apply?

When the Ethernet cable enters through the included sealed connector and is outdoor-rated Cat 6 or better, all covers are fitted and the screws of unused ports are tightened.

How does it differ from the D-RTK 3 Relay?

The D-RTK 3 Relay only relays for the Dock 3. The O4 Ground Station also works as a gateway, supports the Dock 4, the Dock 3 and many drones, adds the sub2G band, draws only 7 W on standby and connects IP cameras (ONVIF, GB/T 28181).

Can it connect IP cameras?

Yes, ONVIF and GB/T 28181 cameras with H.264 encoding, so their video shows in DJI FlightHub 2.

Based on DJI’s official FAQ, in our own words. Official page ↗

The complete system