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DJI O4 Ground Station

Ground communication station for DJI Dock 3 and compatible drones. Gateway Mode with connection to FlightHub 2 via Ethernet or 4G. 12 antennas, PoE power and a built-in backup battery.

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Description

DJI O4 Ground Station — a ground communication station for remote operations at sites with challenging installation conditions.

In Gateway Mode, the station connects to the network via Ethernet or a Cellular Dongle 2 4G modem and links Dock 3 to DJI FlightHub 2, On-Premises or AIO. An array of 12 antennas, PoE power and a built-in backup battery ensure reliable operation.

Relay Mode may be unavailable in some regions.

Key features

  • Gateway Mode — connects Dock 3 to FlightHub 2.
  • Ethernet and 4G — 4G via DJI Cellular Dongle 2.
  • 12 antennas — omnidirectional coverage.
  • PoE power — plus a built-in backup battery.
  • FlightHub 2, On-Premises and AIO — supports all platform options.
  • IP67 protection — outdoor installation.

Compatible devices

Gateway Mode

Relay Mode

Matrice 400 is supported by the station in Relay Mode only.

GNSS Receiver
GNSS FrequencyGPS: 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
** Base station calibration coordinate accuracy depends on various factors. For surveying, high-precision flight paths, etc., it is recommended to calibrate during periods of low ionospheric activity, in open, unobstructed environments with no electromagnetic interference or multipath effects, using a Network RTK mountpoint supporting four or more satellite systems.* 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.

Video Transmission
Video Transmission SystemDJI 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)Operating frequency allowed varies among countries and regions. Refer to local laws and regulations for more information.
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)
** DJI Matrice 400 is only supported in Relay Mode on DJI O4 Ground Station.
*** "Other aircraft" refers to Matrice 4D/4TD (with Dock 3) under Gateway Mode; and refers to Matrice 4E, Matrice 4T, Matrice 4D/4TD (with Dock 3), and Matrice 4D/4TD (with Dock 3, DJI RC Plus 2 Enterprise) under Relay Mode.
**** DJI O4 Ground Station should be placed in an elevated, unobstructed location to ensure clear communication between the remote controller/Dock 4/Dock 3 and the aircraft.* 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.
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 kmData is tested with Matrice 400 under IC standards in unobstructed environments of typical interference. Only to serve as a reference and provides no guarantee as to the actual flight distance.
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 kmData is tested with Matrice 400 under IC standards in obstructed environments of typical interference. Only to serve as a reference and provides no guarantee as to the actual flight distance.
AntennaOcuSync 4 Pro external directional antenna × 4
OcuSync 4 Pro internal directional antenna × 8
2.4G/5.2G/5.8G: 2T4R
Sub2G: 2T2RThe antenna uses a standard reverse polarity SMA connector.
Network AccessEthernet Access: Adaptive Ethernet port; requires ≥ 100Mbps bandwidth and ≤ 100ms latency*
4G Access: Requires the DJI Cellular Dongle 2**
** Sold separately. This service is not available in some countries and regions. Please consult your local dealer for details.* If these requirements are not met, the device may go offline or experience video stuttering.

Electrical Properties
Power InterfaceEthernet Port (PoE)
WAN: PoE-in
LAN: PoE-in
Ethernet Cable RequirementsCat 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
** Low-power mode is not recommended for use at temperatures of -40° to -20° C (-40° to -4° F).* Measured in a controlled test environment and should be used for reference only. Actual power draw may be higher when accounting for losses in the power supply.
Supported Power Supply1. 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)
Type 2 supports Gateway Mode only.Non-standard PoE or Type 1 power supplies are not supported; the device will show a solid red indicator light if an unsupported supply is connected.
Backup BatteryLiPo
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
Battery discharge performance may decrease in low temperatures, reducing actual operating time.Battery preservation mode: when powered via PoE, the system keeps battery voltage between 7.0 V and 7.4 V. If the battery voltage at insertion exceeds 7.5 V, the system will discharge it to the safe threshold before entering preservation mode; the battery will not charge to full capacity.
Backup Battery ChargingSupports 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
Charging is only supported when the battery cell temperature is between 0° and 55° C (32° and 131° F).Charging with a 5V charger is only supported when the device is powered off.
Tested PoE Power SuppliesVisit the Downloads page for the full compatibility list.

Physical Characteristics
Ethernet Port Surge ProtectionWAN/LAN Ports: Ethernet interface supports up to 10kA (total discharge current) surge protection, meeting EN/IEC 61643-21 Category C.RJ45 surge protection capacity is 1.5kA (8/20μs waveform), meeting the Category C protection level of EN/IEC 61643-21. Surge protection capability depends on the capacity and reliability of grounding. To minimize the risk of surges, please make sure that grounding is done properly during installation.
Operating TemperatureIEEE 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)
After storage or operation in extreme temperatures, allow the internal backup battery to return to between 0° and 45° C (32° and 113° F) before charging.The 55° C (131° F) upper limit accounts for solar radiation. At -40° C (-40° F), the device requires a windless environment; auto-restart after shutdown is not supported in windy conditions. Cold-weather heating startup requires IEEE 802.3bt Type 3 (PoE++) or above.
PoE Auto Wake-UpWhen 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 StartupIn 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.Requires PoE supply of IEEE 802.3bt Type 3 (PoE++) or above.
Altitude6000 m
Ingress Protection RatingIP67
When connecting an Ethernet cable, use the included cable connector (corrugated tubing and corrugated tubing plug). The cable must be Cat 6 or above outdoor-rated, waterproof twisted-pair cable with an outer diameter of 5.5 to 6.5 mm.
Ensure all rubber port covers and the DJI Cellular Dongle 2 heat sink are properly installed. Unused WAN/LAN port screws must be fully tightened.Please follow the requirements stated in the IP67 protection rating instructions. Measured in a controlled environment. The IP rating is not permanently effective and may decrease due to product wear and tear.
Impact Protection RatingIK07
Dimensions170×170×352 mm (L×W×H)
Weight2.68 kg
MountingExpansion Bolt Mounting: φ6×70 mm
M6 Screw Mounting: 60 mm hole center spacing

Supported Software
ApplicationsDJI Enterprise app (used with Android phones for deployment and commissioning)
Cloud PlatformFlightHub 2
FlightHub 2 On-Premises Version
FlightHub 2 FlightHub Sync
DJI Cloud API
External Device SupportSupports cameras using ONVIF and GB/T 28181 protocols
Supports up to 4 simultaneous 1080p H.264 video streams
Open EcosystemESDK 2.0

Specifications are based on official DJI data (enterprise.dji.com/o4-ground-station/specs). Actual values may vary depending on operating conditions and firmware version.