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DJI Phantom 4 RTK

DJI Phantom 4 RTK_Tech Support

 

Browse our product support, tips & tutorials for your

DJI Phantom 4 RTK / D-RTK 2 Mobile Station:

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Frequently Asked Questions

DJI Phantom 4 RTK

How does the Phantom 4 RTK differ from previous Phantom Series products?
While previous Phantom series drones were built around professional photographers and hobbyists, the Phantom 4 RTK was designed for industrial users for high-precision mapping and other data acquisition missions. While the Phantom 4 RTK shares a similar camera and form size, it also adds a RTK positioning module, a new TimeSync system, a purpose-built mapping app and more.
What propellers does the Phantom 4 RTK use?
The Phantom 4 RTK uses the same 9450s Quick Release Propellers as the Phantom 4 Pro.
Can I fly the Phantom 4 RTK in other countries or regions?
No, the Phantom 4 RTK has specific versions for different countries and/or regions. Users can check the version code on the product packaging or through the GS RTK app (go to Aircraft Information -> Firmware).
What is the difference between the Phantom 4 RTK’s camera and the camera on the Phantom 4 Advanced/Pro?
While the Phantom 4 RTK and Phantom 4 Pro/Advanced share the same 1-inch, 20 megapixel CMOS sensor, the Phantom 4 RTK has improved the capabilities of the camera for mapping through a new lens distortion recording process. Each Phantom 4 RTK camera goes through a calibration process that measures the distortions of the lens, and records the corresponding undistort parameters. The camera allows users to output the original images without distortion correction as well as the undistort parameters in the XMP file for post-processing
Can the ND filter of the Phantom 4 Pro be used on the Phantom 4 RTK?

Yes, the ND filters made for the Phantom 4 Pro can also be used for the Phantom 4 RTK.

Does the Phantom 4 RTK camera digital signal processor (DSP) support distortion correction?
No, you can enable the distortion correction in the camera but the images will be less precise compared to distortion elimination in post-processing software.
How is the Phantom 4 RTK camera calibrated?
Each Phantom 4 RTK camera goes through a calibration process that measures the distortions of the lens, and records the corresponding undistort parameters in XMP DewarpData. When the “distortion correction” is switched off, the original image with distortion will be generated. When the “distortion correction” is switched on, the parameters used to eliminate distortion is not the parameters calibrated, but the design parameters of the camera. When eliminating the distortions, it is not done pixel by pixel.
What are the highlight features for the standard remote controller of the Phantom 4 RTK?
1.Built-in 5.5-inch display, 1080P, up to 1000 nits brightness. You can see the screen in strong sunlight. The controller can work in low temperatures.
2.Supports hot swappable batteries.
3.Pre-installed GS RTK App can run Photogrammetry, Waypoint and other mission types.
4.OcuSync video transmission.
How can I switch between FCC and CE modes?
FCC and CE mode switching is not available.
Can I connect the Phantom 4 RTK to other Phantom series controllers?
No.
Can I continue my automated mapping mission if the Phantom 4 RTK loses video transmission signal during its mission?
Yes, if the video transmission signal is lost, you can reconnect and continue the mapping mission.
Can I use my Phantom 4 Pro batteries with the Phantom 4 RTK and vice versa?
Yes, the Phantom 4 RTK and Pro batteries are cross compatible and have the same capacity, meaning flight time won’t be effected.
How long does it take to fully charge a Phantom 4 RTK battery?
It takes roughly 60 minutes to fully charge a Phantom 4 RTK battery.
What options do I have to reference the positioning data from the Phantom 4 RTK?
1. Connect locally via OcuSync to your D-RTK 2 Mobile Station. (RTCM3.2)
2. Connect remotely via a 4G Dongle to a custom RTK network using a NTRIP account.(RTCM3.2)
3. Connect remotely via a WiFi hotspot to a custom RTK network using a NTRIP account. Not available in Europe.(RTCM3.0/RTCM3.1/RTCM3.2)
What positioning accuracy can the Phantom 4 RTK achieve?
The Phantom 4 RTK can achieve 1 cm+1 ppm (horizontal), 1.5 cm + 1 ppm (vertical) accurate data.
What is TimeSync and how does it ensure the positioning accuracy of each image taken on the Phantom 4 RTK?
TimeSync continually aligns the flight controller, camera and RTK module, then adjusts the positioning data to the center of the CMOS and records the data in EXIF and XMP format.
What apps have mapping or inspection function?
Users can use the pre-installed GS RTK app for mapping or inspection missions. Additionally, users can install apps built on DJI’s Mobile SDK.
What mapping platform is being used to provide map data to the Phantom 4 RTK app?
Mapbox is used to provide map data to the GS RTK app.
What formats of differential data does the Phantom 4 RTK support?
Currently the Phantom 4 RTK supports RTCM 3.0 data, RTCM 3.1 data, MSM4,MSM5, MSM6 and MSM7 data under RTCM3.2.
Are the coordinates measured by the Phantom 4 RTK relative coordinates or absolute coordinates?
The coordinates measured by the Phantom 4 RTK are absolute coordinates under WGS84.
How do I calculate an appropriate flight altitude based on a GSD value?
You can refer to the equation H=36*GSD to estimate an appropriate flight altitude. Please note that GSD ground sampling distance in this equation is measured by centimeters, while H (Height or flight altitude) is measured by meters. For example, GSD=2.74 cm, when altitude=100 m.
Do images captured by the Phantom 4 RTK store altitude any information? If so, how is this data stored?
Elevation and relative altitude (relative to your takeoff point) are stored in photos captured by the Phantom 4 RTK. Absolute altitude can be used for mapping, and relative altitude can be found in the XMP file.
How can I capture oblique photography when using the Phantom 4 RTK?
Oblique imagery can be captured while flying in the Photogrammetry mode on the GS RTK app. In the Photogrammetry mode, you can adjust gimbal angle from -90 °to -45° under Camera Settings for your flight plan.You can only set one gimbal angle value at a time, so for sites where you want to capture multiple angles you can plan the same mission and just adjust the camera angle.
Can I create a 3D model or point cloud with third-party software using the images captured by the Phantom 4 RTK? If yes, what is the accuracy of the model created?
Yes, you can use third-party software to process Phantom 4 RTK image data and create models, however the accuracy will vary based on the photogrammetric algorithm used. Please refer to the third-party software provider for more information on expected accuracy.
When there are no Ground Control Points (GCPs), what is the accuracy of the model that the Phantom 4 RTK data can make? Can the accuracy meet the requirements of 1:500 scale aerial triangulation?
The orthoimages created with the images captured by the Phanton 4 RTK and select reconstruction software have shown an absolute accuracy of roughly 5 cm, while the accuracy required in 1:500 scale aerial triangulation is less than 30 cm. This means the Phantom 4 RTK’s accuracy meets the requirements of 1:500 scale aerial maps.
Is the Phantom 4 RTK compatible with third-party base stations?
No, you cannot connect third-party base stations to the Phantom 4 RTK 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 kinematics (PPK) to complete their tasks.

DJI D-RTK 2_Tech Support

DJI D-RTK 2 Mobile Station

Which satellite positioning systems does the D-RTK 2 High Precision GNSS Mobile Station (D-RTK 2 Mobile Station) support?
The D-RTK 2 Mobile Station supports GPS, GLONASS, Galileo, and Beidou. It receives 11 satellite signals, including GPS L1, L2, L5; GLONASS L1, L2; Galileo E1, E5A, E5B and Beidou B1, B2, B3.
What is the difference between the D-RTK 2 Mobile Station and D-RTK?
There are 2 main differences: a. Physical differences: D-RTK is a module that includes 2 RTK receivers, antennas, and radio. One receiver can be used as the base station while the other as the rover station to transmit differential data via radio. D-RTK 2 Mobile Station is an all-in-one product that integrates a high-precision receiver and transmission links, making it easy to set up and use. b. Performance D-RTK has two versions that receive GPS+BDS or GPS+ GLONASS signals depending on the region of purchase. D-RTK 2 Mobile Station only has one version globally that supports four satellite navigation systems: GPS, BEIDOU, GLONASS, and Galileo, receiving 11 signals. The new antennas ensure better signal reception and higher positioning accuracy.
Which aircrafts is the D-RTK 2 Mobile Station compatible with?
It is compatible with Phantom 4 RTK, MG-1P RTK, and not with M210 RTK or D-RTK.
Why does the D-RTK 2 Mobile Station not support D-RTK?
Because the data links are different.
What does the D-RTK 2 Mobile Station do?
Currently it is a mobile RTK station, in the future it will be able to serve as a handheld mapping device and as a Continuously Operating Reference Station (CORS).
What are the power sources of the D-RTK 2 Mobile Station?
There are three power sources: 1. Internal battery WB37-4920mAh-7.6V 2. External battery (MG12000P) 3. AC power adaptor.
How long does the internal battery last?
At least two hours. The battery can be charged through the external power port on the D-RTK 2 Mobile Station, or removed and charged with the charger.
Does the internal battery need to be removed when the D-RTK 2 Mobile Station is not in use?
Yes. When not in use, please remove the battery. When powered off, the D-RTK 2 Mobile Station enters standby. If the battery is left in the D-RTK 2 Mobile Station, it will stand by for 10 days and then power off automatically to protect the battery, after which the battery needs to be changed or recharged.
Will the D-RTK 2 Mobile Station shut down when switching to an external power source?
When the internal battery is fully charged, the D-RTK 2 Mobile Station will stay on for at least two hours. If an external power source is connected before the internal battery is drained, the D-RTK 2 Mobile Station will continue to function, otherwise it will shut down.
Do I need to calibrate the D-RTK 2 Mobile Station with a reference point?
If there is a point with known location coordinates, simply place the D-RTK 2 Mobile Station exactly on that point then input the coordinates in the App. Make sure the difference in distance between the input and actual coordinates is less than 5 meters, or the input will not work.
How does the D-RTK 2 Mobile Station sense movement and determine if it is upright?
The D-RTK 2 Mobile Station is equipped with a high-performance IMU to monitor the status of the device and send that information to the aircraft. If the D-RTK 2 Mobile Station is moved or toppled over, the aircraft will stop performing RTK functions and display the status of the D-RTK 2 Mobile Station in the remote controller app.
How do I import a fixed set of coordinates into the D-RTK 2 Mobile Station?
This can be done in the remote controller app, please see the user manual for more information.
How do I run updates on the D-RTK 2 Mobile Station?
Log in to DJI ASSISTANT 2 with your DJI account, connect the D-RTK 2 Mobile Station to the PC with a Type-C cable and run the firmware update.
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