DJI Phantom 4 RTK SDK


Please contact us for availability


Unleash the full power of the DJI Phantom 4 RTK by enabling flight planning with RTK-compatible third-party drone apps with the DJI SDK remote controller.

Max Flight Time

Approx. 30 minutes

Positioning Accuracy

Vertical 1.5cm + 1 ppm(RMS)
Horizontal 1cm + 1 ppm(RMS)

Takeoff Weight


Data Acquisition Efficiency

Max operating area of approx. 1 km² for a single flight(at an altitude of 182m, i.e., GSD is approx. 5cm/pixel, meeting the requirements of the ASPRS Accuracy Standards for Digital Orthophotos Class III

Compatible Base Stations (Sold Separately)


RTK via local NTRIP (no mobile data required)
RTK via Emlid Caster
– RINEX data logging for PPK (compatible with REDCatch REDtoolbox and Emlid Studio)
– Also suitable for surveying ground control points (improved accuracy or quality control)


– RTK via 4G, WiFi, OcuSync and LAN
– PPK via DJI Cloud PPK

Package Contents

– Phantom 4 RTK (x1)
– SDK Remote Controller (x1)
– Propeller Pair (x4)
– Intelligent Flight Battery (x2)
– AC Power Cable (x1)
– AC Power Adapter (x1)
– Gimbal Clamp (x1)
– MicroSD Card (x1)
– Foam Carrying Case (x1)
– Micro USB Cable (x1)


Emlid Reach RS2+


The latest RS2+ features an LTE Modem, dual diversity LTE antennas and a range of design improvements to deliver Emlid’s most user-friendly and durable GNSS receiver yet. The Reach RS2+ is a versatile GNSS receiver that can be used for surveying, mapping, and navigation. It offers centimetre-level accuracy in both RTK and PPK mode, has a battery life of up to 22 hours and is engineered to be tough.

The Emlid Flow mobile app enables you to control the RS2+ receivers with iOS and Android devices.


BeiDou B1I, B2I
Galileo E1-B/C, E5b

Positioning Accuracy

Horizontal 5mm + 0.5 ppm
Vertical 10mm + 1 ppm

Horizontal 7mm + 1 ppm
Vertical 14mm + 1 ppm


LoRa radio 868/915MHz (up to 8Km)
Built-in LTE modem (Nano-SIM)
Wi-Fi 802.11b/g/n
Bluetooth 4.0/2.1 EDR
Ports: RS-232, USB Type-C


NTRIP and RTCM3 corrections
NMEA and LLH/XYZ position output
RINEX logs with update rate up to 20Hz
16GB internal storage

Package Contents

– Emlid Reach RS2+
– LoRa antenna
– USB cable
– Carrying case
Emlid Flow app (free download)

DJI D-RTK 2 High Precision GNSS Mobile Station


D-RTK 2 Mobile Station is DJI’s upgraded high-precision GNSS receiver that supports all major global satellite navigation systems, providing real-time differential corrections that generate centimetre-level positioning data for improved relative accuracy.


GPS L1 C/A, L2, L5; BEIDOU B1, B2, B3; GLONASS F1, F2; Galileo E1, E5A, E5B

Positioning Accuracy

Single Point
Horizontal:1cm+ 1 ppm(RMS)
Vertical:2cm+ 1 ppm(RMS)

OcuSync, Wi-Fi, LAN, 4G

5.725GHz to 5.850GHz (Australia)

Dimensions (D-RTK 2 body with extension rod)

168mm × 168mm × 1708mm

DJI Phantom 4 Series Battery Charging Hub

The Phantom 4 Battery Charging Hub is designed for use with the Phantom 4 Intelligent Flight Battery. When used with the Phantom 4 Battery Charger, it can charge up to three Intelligent Flight Batteries. The Intelligent Flight Batteries will be charged in sequence according to their power levels, from high to low.

It will take approximately 3.5 hours to fully charge three Intelligent Flight Battery. Storage Mode allows the Charging Hub to keep the Phantom 4 Intelligent Flight Battery at a 50% charge, which is ideal for storage.


- Charge three batteries in sequence
- The Battery Charging Hub does not include a charger. Please use it together with a standard charger


- Compatible Battery Charger: Phantom 4 Charger (PH4C100)
- Compatible Battery Model: PH4-5350 mAh - 15.2V; PH4-5870 mAh - 15.2V
- Operating Temperature: 5°C to 40℃
- Operating Voltage: 17.5 V
- Reference Charging Time (Three Batteries): 3 hr 30 min
- Weight: 162 g


- Phantom 4 Series - Intelligent Flight Battery (5870 mAh, High Capacity)
- Phantom 4 Series - Intelligent Flight Battery (5350 mAh)
- Phantom 4 Series - 100 W Battery Charger
- Phantom 4 Series - 160 W Battery Charger


Next Generation Mapping

DJI has rethought its drone technology from the ground-up, revolutionizing its systems to achieve a new standard for drone accuracy – offering
Phantom 4 RTK customers centimetre-accurate data while requiring fewer ground control points.

Centimetre Level Positioning System

A new RTK module is integrated directly into the Phantom 4 RTK, providing real-time, centimetre-level positioning data for improved absolute accuracy on image metadata. Sitting just beneath the RTK receiver is a redundant GNSS module, installed to maintain flight stability in signal-poor regions such as dense cities. Combining both modules, the Phantom 4 RTK is able to optimize flight safety while ensuring the most precise data is captured for complex surveying, mapping and inspection workflows.

Gather Accurate Data with TimeSync

To take full advantage of the Phantom 4 RTK’s positioning modules, the new TimeSync system was created to continually align the flight controller, camera and RTK module. Additionally, TimeSync ensures each photo uses the most accurate metadata and fixes the positioning data to the center of the CMOS – optimizing the results from photogrammetric methods and letting the image achieve centimetre-level positioning data.

Precise Imaging System

Capture the best image data with a 1-inch, 20 megapixel CMOS sensor. The mechanical shutter makes mapping missions or regular data capture seamless as the Phantom 4 RTK can move while taking pictures without the risk of rolling shutter blur. Due to the high resolution, the Phantom 4 RTK can achieve a Ground Sample Distance (GSD) of 2.74cm at 100 meters flight altitude. To ensure each Phantom 4 RTK offers unparalleled accuracy, every single camera lens goes through a rigorous calibration process where radial and tangential lens distortions are measured. The distortion parameters gathered are saved into each image’s metadata, letting post-processing software adjust uniquely for every user.

Access to the World's Leading Drone App Ecosystem for Survey Missions

Pilots with experience using 3rd party applications on DJI drones can now access the world’s leading drone app ecosystem for their Phantom 4 RTK with the SDK remote controller.

Note: in order to experience the full power of RTK flights, please make sure the intended third-party drone app is compatible with the Phantom 4 RTK capabilities. 

OcuSync Transmission System

Enjoy stable and reliable HD image and video transmission at distances of up to 7km, great for mapping larger sites. 

*Unobstructed, free of interference, when FCC compliant. Maximum flight range specification is a proxy for radio link strength and resilience. Always fly your drone within visual line of sight unless otherwise permitted.

Third-Party Compatibility

The DJI Phantom 4 RTK SDK is capable of receiving RTCM3 corrections from the Emlid Reach RS2+ or Reach RS3, via local or remote NTRIP connections.

The RINEX data recorded by the aircraft can also be used on PPK workflows. Read more about how can the REDcatch REDtoolbox software can support that process.