P4 Multispectral + D-RTK 2 Mobile Station Combo

Farm to Figures. Gain Immediate Insights into Plant Health

The P4 Multispectral consolidates the process of capturing data that gives insight into crop health and vegetation management. DJI has created this platform with the same powerful performance standards that DJI is known for, including 27 minutes max flight time and up to 7 km1 transmission range with the OcuSync system.

See Beneath the Surface

Agriculture imagery collection is now simpler and more efficient than ever before with a built-in stabilized imaging system that collects comprehensive data sets right out of the box. Access information collected by 1 RGB camera and a multispectral camera array with 5 cameras covering Blue, Green, Red, Red Edge, and Near Infrared bands – all at 2 MP with global shutter, on a 3-axis stabilized gimbal.

Integrated Spectral Sunlight Sensor for Accurate Results

An integrated spectral sunlight sensor on top of the drone captures solar irradiance, which maximizes accuracy and consistency of data collection through different times of day. When combined with post-processed data, this information helps to obtain the most accurate NDVI results.

Meaningful Data at Your Disposal. View Both RGB and NDVI Feeds

Simply having aerial imagery is not enough for ag professionals who want to know more. Switch between a preliminary Normalized Difference Vegetation Index (NDVI) analysis and the live RGB feed to immediately visualize where attention is needed, so targeted treatment decisions can be made quickly.

Centimeter-level Precision

Get real-time, accurate positioning data on images captured by all six cameras with DJI’s TimeSync system, providing centimeter-level accurate measurements. The TimeSync system continually aligns the flight controller, RGB and NB cameras, and RTK module, fixing the positioning data to the center of the CMOS and ensuring each photo uses the most accurate metadata. All cameras go 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.

D-RTK 2 Mobile Station and NTRIP Compatibility

Enhance the accuracy of RTK positioning without internet connection by connecting the P4 Multispectral to the D-RTK 2 High Precision GNSS Mobile Station and NTRIP (Network Transport of RTCM via Internet Protocol)2, or store the satellite observation data to be used for Post Processed Kinematics (PPK).

The Beginning of Intelligent Agriculture Missions

Plan Flights

Plan flights, execute automated missions, and manage flight data using GS PRO – DJI’s leading flight planning iOS app.

Capture Data

Collect multispectral images efficiently across a large area using the P4 Multispectral and gain an overview of problem areas.

Analyze Data

Easily access and process aerial data by applying plant-specific metrics and parameters to acquire the desired results on plant health.

Act on Data

Implement targeted treatments on areas that need attention based on accurate drone data.

Applications

Precision agriculture

Throughout all growing seasons, multispectral imagery can be helpful to ag professionals by providing information invisible to the human eye across the electromagnetic spectrum. Having access to this data and the subsequently obtained Vegetation Index data such as NDRE and NDVI, farmers can make timely, informed decisions on crop treatment, lowering costs, saving resources, and maximizing yields.

Environmental monitoring and inspection

Routine inspections and maintenance involving plants can be made smarter and more efficient when using the P4 Multispectral – leverage its actionable multispectral insights to monitor forest health, measure biomass, map shorelines, or manage riparian vegetation while protecting habitats or ecosystems, and much more.

Specs

Aircraft

Takeoff Weight 1487 g

Diagonal Distance (Propellers Excluded) 350 mm

Max Service Ceiling Above Sea Level 19685 ft (6000 m)

Max Ascent Speed 6 m/s (automatic flight); 5 m/s (manual control)

Max Descent Speed 3 m/s

Max Speed 31 mph (50 kph) (P-mode); 36 mph (58 kph) (A-mode)

Max Flight Time Approx. 27 minutes

Operating Temperature 0° to 40° C (32° to 104° F)

Operating Frequency 2.4000 GHz to 2.4835 GHz (Europe, Japan, Korea) ; 5.725 GHz to 5.850 GHz (Other countries/regions)[1]

Transmission Power (EIRP) 2.4 GHz: < 20 dBm (CE / MIC / KCC) ; 5.8 GHz: < 26 dBm (FCC / SRRC / NCC)

Hover Accuracy Range RTK enabled and functioning properly: Vertical: ± 0.1 m; Horizontal: ± 0.1 m ; RTK disabled: Vertical: ± 0.1 m (with vision positioning); ± 0.5 m (with GNSS positioning); Horizontal: ± 0.3 m (with vision positioning); ± 1.5 m (with GNSS positioning)

Image Position Compensation The relative positions of the centers of the six cameras’ CMOS and the phase center of the onboard D-RTK antenna have been calibrated and are recorded in the EXIF data of each image.

Mapping Functions

Ground Sample Distance (GSD) (H/18.9) cm/pixel, H indicates the aircraft altitude relative to the area mapped (unit: m)

Rate of Data Collection Max operating area of approx. 0.63 km2 for a single flight at an altitude of 180 m, i.e., GSD is approx. 9.52 cm/pixel, with a forward overlap rate of 80% and a side overlap ratio of 60%, during a flight that drains the battery from 100% to 30%.

GNSS

Single-Frequency High-Sensitivity GNSS GPS + BeiDou + Galileo (Asia); GPS + GLONASS + Galileo[2] (other regions)

Multi-Frequency Multi-System High-Precision RTK GNSS Frequency Used GPS: L1/L2; GLONASS: L1/L2; BeiDou: B1/B2; Galileo: E1/E5 ; First-Fixed Time: < 50 s ; Positioning Accuracy: Vertical 1.5 cm + 1 ppm (RMS); Horizontal 1 cm + 1 ppm (RMS). 1 ppm indicates error with a 1 mm increase over 1 km of movement. Velocity Accuracy: 0.03 m/s

Gimbal

Controllable Range Tilt: -90° to +30°

Vision System

Velocity Range ≤ 31 mph (50 kph) at 6.6 ft (2 m) above ground with adequate lighting

Altitude Range 0 - 33 ft (0 - 10 m)

Operating Range 0 - 33 ft (0 - 10 m)

Obstacle Sensory Range 2 - 98 ft (0.7 - 30 m)

Operating Environment Surfaces with clear patterns and adequate lighting (> 15 lux)

Camera

Sensors Six 1/2.9” CMOS, including one RGB sensor for visible light imaging and five monochrome sensors for multispectral imaging. Each Sensor: Effective pixels 2.08 MP (2.12 MP in total)

Filters Blue (B): 450 nm ± 16 nm; Green (G): 560 nm ± 16 nm; Red (R): 650 nm ± 16 nm; Red edge (RE): 730 nm ± 16 nm; Near-infrared (NIR): 840 nm ± 26 nm

Lenses FOV (Field of View): 62.7° ; Focal Length: 5.74 mm (35 mm format equivalent: 40 mm), autofocus set at ∞ ; Aperture: f/2.2

RGB Sensor ISO Range 200 - 800

Monochrome Sensor Gain 1 - 8x

Electronic Global Shutter 1/100 - 1/20000 s (visible light imaging); 1/100 - 1/10000 s (multispectral imaging)

Max Image Size 1600×1300 (4:3.25)

Photo Format JPEG (visible light imaging) + TIFF (multispectral imaging)

Supported File Systems FAT32 (£ 32 GB); exFAT (> 32 GB)

Supported SD Cards microSD with a minimum write speed of 15 MB/s. Max Capacity: 128 GB. Class 10 or UHS-1 rating required

Operating Temperature 0° to 40° C (32° to 104° F)

Remote Controller

Operating Frequency

2.4000 GHz to 2.4835 GHz (Europe, Japan, Korea) ; 5.725 GHz to 5.850 GHz (Other countries/regions)[1]

Transmission Power (EIRP) 2.4 GHz: < 20 dBm (CE / MIC / KCC) ; 5.8 GHz: < 26 dBm (FCC / SRRC / NCC)

Max Transmission Distance FCC / NCC: 4.3 mi (7 km) ; CE / MIC / KCC / SRRC: 3.1 mi (5 km)(Unobstructed, free of interference)

Built-in Battery 6000 mAh LiPo 2S

Operating Current / Voltage 1.2 A @ 7.4 V

Mobile Device Holder Tablets and smartphones

Operating Temperature 0° to 40° C (32° to 104° F)

Intelligent Flight Battery (PH4-5870mAh-15.2V)

Capacity 5870 mAh

Voltage 15.2 V

Battery Type LiPo 4S

Energy 89.2 Wh

Net Weight 468 g

Operating Temperature -10° to 40° C (14° to 104° F)

Charging Temperature 5° to 40° C (41° to 104° F)

Max Charging Power 160 W

Intelligent Flight Battery Charging Hub (PHANTOM 4 CHARGING HUB)

Voltage 17.5 V

Operating Temperature 5° to 40° C (41° to 104° F)

AC Power Adapter (PH4C160)

Voltage 17.4 V

Rated Power 160 W

D-RTK 2 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 centimeter-level positioning data for improved relative accuracy.

Centimeter-Level Positioning

D-RTK 2 Mobile Station fully supports GPS, GLONASS, Beidou, and GALILEO signals. Easy and quick to set up, the D-RTK 2 Mobile Station provides real-time differential data for drones to achieve centimeter-level positioning accuracy. The built-in high-gain antenna offers better signal reception from more satellites even when obstructions are present.

Stay Connected for Any Mission

D-RTK 2 Mobile Station supports communication via 4G, OcuSync, WiFi, and LAN, ensuring uninterrupted, stable data transmission under any application scenario. Up to 5 remote controllers* can be connected to the D-RTK 2 Mobile Station simultaneously when used with DJI Agras drones, the Phantom 4 RTK, or the P4 Multispectral. When used with the Matrice 300 RTK, it can be connected to multiple aircraft, making coordinated operations involving multiple drones a possibility and significantly improving efficiency.

Durability You Can Trust

Featuring IP65 level ingress protection and a lightweight carbon fiber body, the D-RTK 2 Mobile Station is ultra-portable and up for any task, no matter how tough. The built-in IMUs monitor movements and calibrate the tilt sensors to alert the operator of any abnormalities during the mission, minimizing risks.

A Comprehensive Solution

The D-RTK 2 Mobile Station is compatible with Phantom 4 RTK, P4 Multispectral, MG-1P RTK, Agras T16, Agras T20, Matrice 210 RTK V2 and Matrice 300 RTK*. It also supports DPS (DJI Positioning Service), which provides high precision positioning data within the cover range of the base station, making it the ideal tool for surveying, aerial inspections, agriculture, and other industrial applications.