DJI Phantom 4 Multispectural With D-RTK Base Station 2

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SKU: P4M_B2

P4 Multispectral, combined with D-RTK base station, enhances the accuracy of RTK positioning without an internet connection by using DJI’s D-RTK 2 High-Precision GNSS Mobile Station, which supports all major global satellite navigation systems.

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Features

 

Through Ferntech you get a FREE annual subscriptions to


Enterprise Shield Basic
DJI Terra Basic
DJI GS Pro (Team-Professional)

 

 

Flight Time

Control Range

Horizontal RTK Accuracy

Vertical RTK Accuracy

Video Transmission

Number of sensors

27 Min 7 km 1 cm + 1 ppm 1.5 cm + 1 ppm Ocusync Six 1/2.9"CMOS

 

 

 

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 the accuracy and consistency of data collection through different times of the day. When combined with post-processed data, this information helps to obtain the most accurate NDVI results.

 

 

Meaningful Data ar 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.

 

 

Centimetre-level Precision

Get real-time, accurate positioning data on images captured by all six cameras with DJI’s TimeSync system, providing centimetre-level accurate measurements. The TimeSync system continually aligns the flight controller, RGB and NB cameras, and RTK module, fixing the positioning data to the centre 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 an 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.

Product Specifications

 

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 centres of the six cameras’ CMOS and the phase centre of the onboard D-RTK antenna have been calibrated and are recorded in the EXIF data of each image.


GNSS


Single-Frequency High-Sensitivity GNSS:
GPS + BeiDou + Galileo (Asia); GPS + GLONASS + Galileo (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

 

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. 0.47 km2 for a single flight at an altitude of 180 m, i.e., GSD is approx. 9.52 cm/pixel

 

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

 

NOTE:

To comply with local laws and regulations, this frequency is not available in some countries or regions.
Support for Galileo is coming soon.

In the box

The DJI P4 Multispectral:

Phantom 4 Multispectral Aircraft x 1
Remote Controller x 1
Carrying Case x 1
 
DJI GS Pro (Team-Professional) x 1 year
DJI Terra Basic x 1 year
Enterprise Shield Basic x 1 year
 
D-RTK Base Station 2 x 1

WHY BUY FROM US?

By buying from Ferntech, you'll have the confidence that you are dealing directly with New Zealand's leading drone experts. Our staff are knowledgable drone pilots who offer expert advice, trusted support and superior specialist service. Only through us will you receive a full New Zealand warranty, phone and email support, and access to our certified Repairs Centre with DJI-qualified drone technicians. And we guarantee that we will have the best prices on the market — if not let us know and we will match any price (conditions apply).

 

Warranty Details

MC: 12 Months
Gimbal Camera: 6 Months
Vision Positioning System: 6 Months
Propulsion system (excluding propellers): 6 Months
Remote Controller: 6 Months
Battery:  6 Months and Charge Cycle less than 200 Times
Battery Charger: 12 Months
Frame: No warranty
Propeller: No warranty

Product

How is the P4 Multispectral different from the Phantom 4 RTK?

Both are RTK-enabled, all-in-one drone platforms. The main difference is the camera. The P4 Multispectral comes with an RGB camera and five cameras that make up a multispectral camera array, all at 2 MP; whereas the Phantom 4 RTK comes with a single RGB camera at 20 MP.

What propellers does the P4 Multispectral use?

It uses the 9455S Low-Noise Propellers. The Phantom 4 Series propellers are also compatible, but flight performance will be affected.

How do I take care of the Spectral Sunlight Sensor on top of the drone?

Keep it away from hard, sharp objects to prevent scratching.

 

 

Remote Controller

What are the capabilities of the multispectral camera array of the P4 Multispectral?

The multispectral imaging system of the P4 Multispectral detects light emissivity of different objects, which is captured by each of the cameras and analyzed to calculate vegetation index values. A common index used in the agriculture and forestry industry for plant health is NDVI. Meanwhile, the spectral sunlight sensor atop the drone compensates for the sunlight received throughout different times of day, improving the consistency of the data captured over the same field of vegetation.

What are the Multispectral Imaging Bands covered by the multispectral cameras of the P4 Multispectral?

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. Each Sensor: Effective pixels 2.08 MP (2.12 MP in total)

What is the focal length for each camera on the P4 Multispectral?

All the camera lenses have a focal length of 5.74 mm, and the 35 mm equivalent focal length is 40 mm.

How are the cameras radiometrically calibrated?

Your images go through radiometric calibration when you process them through the vegetation index features in DJI GS Pro and DJI Terra.

Have the cameras on the P4 Multispectral gone through image position compensation?

Yes. The positions of the centres of the six cameras’ CMOS relative to the phase centre of the onboard D-RTK antenna have been calibrated and are recorded in the EXIF data of each image.

Have the cameras lenses gone through distortion correction?

The original images are not corrected for distortion, but each camera lens has gone through distortion measurement during the production process, with the parameters recorded within each of the images.

Have the cameras gone through a vignetting correction?

The original images are not corrected for vignetting, but the parameters for vignetting correction are recorded within each of the images.

Is the TimeSync feature available for all six cameras?

Yes.

Do I need to use a high-speed SD card for the cameras?

Yes. Please refer to the user manual when choosing an SD card.

How is consistency ensured across the multispectral camera arrays and the Spectral Sunlight Sensors on different drones?

All P4M aircraft go through a standard camera and sensor calibration process as part of DJI’s production standards, minimizing differences between drones.

What are stored in pixel values of the images, DN values or reflectance values?

DN values.

 

 

Remote Controller

Which remote controller is compatible with the P4 Multispectral?

Currently, the P4 Multispectral is only compatible with the SDK Remote Controller that comes with the aircraft.

Can I use other Phantom 4 Series remote controllers to control the P4 Multispectral?

You will be able to link the aircraft and a Phantom 4 Series remote controller, but you will not be able to control the P4 Multispectral if you’re not using a compatible remote controller. You can use the P4 Multispectral remote controller with the Phantom 4 RTK, but not the other way around.

 

 

Video Transmission

What is the max transmission distance of the P4 Multispectral?

NCC / FCC: 7 km; SRRC / CE / MIC / KCC: 5 km (Unobstructed, free of interference)

What is the resolution of the transmission of the P4 Multispectral?

720p.

 

 

Battery

Can I use the P4 Multispectral battery on the Phantom 4 RTK?

Yes.

How long does a P4 Multispectral battery last?

A new battery lasts around 27 minutes.

How long does it take to charge a P4 Multispectral battery?

Around 58 minutes.

 

Software

How do I run firmware upgrades on the P4 Multispectral?

You can run firmware upgrades using DJI Assistant 2 for Phantom. Follow instructions here and in the user manual.

What apps are available on the remote controller for field scouting and inspection?

The operating app that comes with the aircraft, DJI GS Pro, can be used to plan flights and execute flight missions.

What map is used in the app for the P4 Multispectral?

DJI GS Pro uses Apple Maps.

Is there a limit on the number of waypoints for each flight?

There is no limit on the number of waypoints in each flight mission, but the aircraft can only perform actions at up to 99 waypoints. When a flight mission has more than 99 waypoints, DJI GS Pro will automatically section the waypoints into groups, each containing a maximum of 99 waypoints.

What are the limits to flight height and speed?

Flight height: Maximum: 500 m, minimum: 1 m. Flight speed: Maximum: 15 m/s, minimum: 1 m/s.

Which flight mode should I use if I want to switch between RGB and NDVI live feeds?

You can switch between RGB and NDVI live feeds in manual mode. We recommend that you stay in the RGB view and do not switch between feeds during a flight mission. The JPEG images will automatically be saved in either RGB or NDVI based on the camera mode. The most third-party mapping software will require RGB images for aerial triangulation before stitching NDVI maps.

What are the recommended camera settings?

For beginner users, we recommend setting the multispectral shooting mode to Auto, choose Average Metering as the metering mode, and choose AE to unlock.

Does the P4M support third-party software?

Support for DJI Mobile SDK is coming soon.

Which vegetation indices are supported in DJI Terra?

DJI Terra supports NDVI, GNDVI, NDRE, LCI, and OSAVI, but does not have a vegetation index calculator function.

 

Application

Which types of crops can information from the P4 Multispectral be used for?

The data from the multispectral bands captured by the P4 Multispectral can be used for a variety of crops or vegetation. Use DJI Terra or third-party software to reconstruct vegetation index maps like NDVI or NDRE maps that help you monitor plant health.

Can I run routine inspections on a given flight path using the P4 Multispectral?

Yes, you can plan flight missions and execute them repeatedly using GS Pro.

Can I reconstruct maps using third party software?

Yes.

How do I calculate an appropriate flight altitude based on a Ground Sample Distance (GSD) value?

The GSD for the P4 Multispectral is (H/18.9) cm/pixel. You can calculate the height of your flight mission based on the accuracy needed.

What’s the max mapping area in a single flight?

The P4 Multispectral has a max mapping area of approx. 0.47 km2 for a single flight at an altitude of 180 m, i.e., GSD is approximately 9.52 cm/pixel.

Do mission waypoints contain any altitude information?

Relative altitude (relative to your takeoff point) information is stored in the photos captured at waypoints.

Is the P4 Multispectral compatible third-party base stations?

No, you cannot connect third-party base stations to the P4 Multispectral or the remote controller via a radio station. However, you can obtain data from a network RTK server via NTRIP protocol in 4G/Wi-Fi network environment. Satellite observation data can also be saved in the aircraft for users to conduct post-processed kinematic (PPK) to complete their tasks.

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