dji Phantom 4 RTK Instruction Manual

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FREQUENTLY ASKED QUESTIONS
DJI PHANTOM 4 RTK with RTK-2 MOBILE STATION

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CONTENTS
DJI PHANTOM 4 RTK DRONE
Product
Camera
Remote Controller
Video Transmission
Battery
Position and Orientation
Software
Mapping
DJI RTK-2 MOBILE STATION
Product
Power Source
Using the D-RTK 2 Mobile Station

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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 9455s
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.
CAMERA
PRODUCT
PHANTOM 4 RTK DRONE

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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.
What is the video transmission distance of the Phantom 4 RTK? The effective video
transmission distance depends on your method of operation (such as the antenna position)
and actual flight environment. In an open and unobscured environment, the maximum
distance is 7 km when FCC compliant, and 5 km when CE compliant. (2.4 GHz).
What should I do if the app sends me the following notification: "the remote controller
signal is weak, please adjust the antenna"? This means that improper antenna positioning
is likely affecting the video transmission signal, and therefore the quality of the real-time view.
You can try to adjust the antennas so the flat sides of the antenna point towards the Phantom
4 RTK.
REMOTE CONTROLLER
VIDEO TRANSMISSION

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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.
How should I take care and store my batteries? Batteries should be stored in a dry,
ventilated, cool environment, away from fire, high temperature and flammable materials.Do
not put the battery in an environment that may cause the battery temperature to rise, such as
in the sun, or under the direct sunlight inside your car.Long-term storage should ensure that
the amount of electricity is more than 50% but not fully charged. The battery should be
charged and discharged to maintain the battery activity every 3 month for long-term storage.
What does it mean when the battery icon turns yellow in the app? This means the
voltage of the battery cell is low and should be charged soon. Please be cautious when flying
under this situation.
Can I use Phantom 4 RTK batteries in low temperatures? The battery capacity (and
therefore flight time) will sharply decrease in low temperatures (< -10℃/14℉). It is
recommended to heat the batteries to 20℃/68℉before flying to limit this effect. For flight
safety, the battery cannot be charged when the temperature is below 5℃/41℉or above
40℃/104℉.
Why do batteries start to heat up after long-term storage? This is a normal phenomenon.
When batteries have been stored for a long time with over 65% of the charge remaining, an
automatic discharging procedure is activated to decrease battery level to 65%, during which
the batteries will heat up.
BATTERY

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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 are the differences between PPK and RTK mode? How to use them? RTK and PPK
are two different kinematics technologies that reference data in different ways. RTK and PPK
both achieve centimeter-level precision. RTK is recommended for users flying in
environments that allow for real-time connection via OcuSync or 4G and prefer convenience
and efficiency. For users who have no demand on timeliness and/or need to operate in
conditions without connectivity, PPK is a better option.
Which PPK file types does the Phantom 4 RTK support? What are these files for and
how do I use them?
EVENTLOG.bin is a binary format that stores exposure, time stamp and log file.
PPKRAW.bin is an RTCM3.2 MSM5 format that stores satellite observation data and
ephemeris data.
Rinex.obs is a Rinex file format that is created after transcoding.
Timestamps.MRK is a ASCII format that stores exposure and time stamp.
How do I find the XMP information of my Phantom 4 RTK photos? Open the photo in text
format and search "XMP" to find this information on each photo.
When I take a photo with the Phantom 4 RTK, where is the location metadata logging
the position from? Due to the new TimeSync system, each photo stores the position of the
CMOS center in its metadata.
How can I get the compensation value between the antenna phase center and CMOS
center? For each photo, the compensation value between the RTK module's antenna phase
center and the CMOS center in NED coordinate system is recorded in the timestamp, which
can be found in the Timestamp.MRK file under the "survey" folder.
What are the methods of calculation used by the Cloud PPK Service? There are 2 ways
that Cloud PPK Service uses to calculate PPK data: DJI base station and RINEX base station.
POSITION and ORIENTATION

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1. DJI Base Station: Connect DJI D-RTK 2 High-Precision GNSS Mobile Station and the
remote controller via a USB cable to upload the PPK data onto the base station. After
the server acquires the data from the aircraft and the D-RTK 2 Mobile Station, it will
start PPK calculation automatically.
2. RINEX Base Station: Convert the satellite observation values received by third-party
base stations into standard RINEX format, then import the PPK source data to the
remote controller and upload them to the cloud server for PPK calculation.
In which SD cade file folder should the third-party satellite observation data be stored
when I use a RINEX base station for PPK calculation? Where will the PPK calculation
results be stored? You should save the third-party satellite observation data under sd
card/third_base/ on the SD card in the remote controller. The PPK results will be stored under
SD card/DCIM/SURVEY/(mission file name)/result.csv.
How does the Cloud PPK Service acquire the geographic coordinate information of
third-party base stations when using a RINEX base station for PPK calculation?
1. If the RINEX file contains a field “APPROX POSITION XYZ”, which includes the
approximate location of the base station in the ECEF coordinate system, the Cloud
PPK Service will be able to analyze the location based on information in the field and
convert it into geographic coordinates. These coordinates will be set as the default
coordinates for the phase center of the antenna of the base station.
2. Users can also manually enter the longitude and latitude information of where the
base station is set up, as well as the distance between the bottom of the base station
and the antenna phase center (APC). With this information, the Cloud PPK Service will
run calculations based on the antenna phase center information entered by the user.
3. The Cloud PPK Service can also acquire the location of the antenna phase center
through Single Point Positioning (SPP) with RINEX data. These coordinates will be
used for PPK calculation.
Where is Cloud PPK Service available? The service is available everywhere except in the
US, Canada, Hong Kong SAR, and Macau SAR.
When I use the D-RTK 2 Mobile Station as an RTK rover, where are the coordinate files
stored? You can find them under /DJI/EXPORT/RTK_SCOUT.
How does the RTK rover measure data? There are two ways:
1. Instantaneous measurement
2. Average measurement using 10 values collected during 2 seconds
Does the D-RTK 2 Mobile Station have to have an RTK “FIX” to be used as a rover?
1. For instantaneous measurement: yes, it has to be “FIX”.
2. For average measurement: it is recommended that the RTK signal be “FIX”.
How do I run firmware updates on the D-RTK 2 Mobile Station? Currently you can only
update it via the Phantom 4 RTK Remote Controller (not the SDK Remote Controller).

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What is the “RTK positioning precision maintenance” mode? When the RTK positioning
precision maintenance mode is enabled, and if signals are lost from the RTK base station,
positioning precision will decrease slowly from the absolute precision of 1 cm+1 ppm to
around 20 cm. The RTK Flag value in the XMP data of the image will be 16, and the RTK status
of the remote controller will remain at FIX.
How do I update the Phantom 4 RTK firmware? The Phantom 4 RTK firmware upgrade
process is similar to that of the Phantom 4 Pro. Using the DJI Assistant 2 software, you can
update the remote controller and aircraft firmware separately. You can also update the drone
and remote controller simultaneously through the GS RTK app. First you connect the remote
controller to the aircraft with OTG and USB cables, then follow the procedures explained in
the remote controller's GS RTK app.
In what situations are the left/right TOF and infrared sensors active? Currently the
left/right TOF and infrared sensors are not active, so please fly with caution.
Which software programs can I use to control my Phantom 4 RTK and plan flights? You
can use the GS RTK app for flight control and plannng, and PC-based mapping software such
as DJI Terra for mapping missions. If you purchase the SDK Remote Controller, you can also
use DJI GS Pro, DJI Pilot, and a variety of third-party apps developed using DJI' MSDK.
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 are the limitations to the Phantom 4 RTK's waypoints?
•In the GS RTK App: maximum waypoints: 199.
•In DJI Terra: waypoints can be at most 2km apart, and at most 99 waypoints can be
set. The total distance of a waypoint mission cannot exceed 40km, in photogrammetry
mode the max distance is 100km.
Can I set waypoints by entering longitude and latitude values when using Waypoint
mode? No.
When importing KML area files into software programs, what is the maximum number
of boundary points that I can set? Currently the GS RTK app supports up to 199 boundary
points, and DJI Terra supports up to 99.
Into which missions can I import KML files? Photogrammetry 2D, Photogrammetry 3D
(Double Grid), Photogrammetry 3D (Multi-oriented), Block Segmentation, and Terrain
Awareness Mode missions.
SOFTWARE

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In Terrain Awareness Mode, is there a way to turn off the Terrain Rendering Map
display? Yes. Tap the ··· on the upper right corner in Terrain Awareness Mode, and tap the ···
on the sidebar, you can turn off the display there under General Settings.
When would I use Block Segmentation? Block Segmentation breaks large areas into
multiple sets of flight paths, which will help improve efficiency. It is recommended to plan
these flights over generally flat areas with little change in elevation for the best results.
How do I plan flight missions with Block Segmentation?
1. Select Block Segmentation;
2. Set the mapping area: manually set the mapping area or import kml files;
3. Adjust the grid size and direction;
4. Adjust parameters such as camera parameters and overlap rate.
In Block Segmentation, are the flight paths planned separately for each divided region
or altogether? The flight paths are planned altogether for all regions. Users cannot adjust
the overlap rate, height, route direction, and other parameters for each area individually.
How do I control multiple aircraft simultaneously when executing Block Segmentation
missions? After you finish planning, bind each Phantom 4 RTK with corresponding flight
mission. Then, you can start one of the missions by itself or start all missions simultaneously.
How many Phantom 4 RTK can I control at the same time while using the Block
Segmentation? At most 5.
If I operate several aircraft at the same time, is it possible that they crash into each
other? No. Thanks to the obstacle sensing technology, when two or more Phantom 4 RTK get
close to each other, they will slow down or hover automatically. They will only resume the
mission when the area is cleared.
Can I fly a mission with Phantom 4 RTK using Absolute Altitude? Yes, but only for
Waypoint Flight.
How do I fly a mission with Phantom 4 RTK using Absolute Altitude?
1. Enter RTK Settings and confirm the RTK status is FIX;
2. Select Waypoint Flight, start adding waypoints with RTK enabled, the system will
automatically record the absolute altitude of each waypoint;
3. Select Absolute Altitude in the Height popup window when you perform the
operation.
Can I fly a mission using Absolute Altitude if RTK is not enabled or if RTK is not “FIX” on
the Phantom 4 RTK? No. You can only fly using the default Relative Altitude mode without
RTK or if RTK is not “FIX”.

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When do I need to adjust Relative Height? When the elevation of the takeoff location is
different from the elevation of the area being mapped, you can adjust the Relative Height to
ensure sufficient overlap rates in the measurement. Please see the attached illustration:
If the drone takes off from a 50m building marked H1 in the illustration, the area being
mapped is marked A, and the expected altitude for aerial data collection is 100m, you can set
the Mission Altitude in to 100m, and Relative Height to 50m. Similarly, if the drone takes off
from H2 to map Area B, which is a hill with an elevation of 40m, and the expected altitude for
aerial data collection is 60m, then set Mission Altitude to be 60m, and Relative Height to be -
40m. You can adjust Relative Height in Photogrammetry 2D, Photogrammetry 3D (Double
Grid), Photogrammetry 3D (Multi-oriented), Linear Flight Mission, and Block Segmentation
missions.
In what scenarios can variable altitude flight path missions be used? Variable altitude
flight paths are useful for taking modeling shots at belts of terrain with great altitude
differences, for instance, power transmission lines, roads and rivers with rising and falling
topography.
Are there any altitude and angle restrictions between waypoints when planning a
variable altitude flight path? There are no altitude restrictions between any two waypoints.
The actual flight altitude is determined by the altitude limit. There are no angle restrictions.
Does a variable altitude flight path mission support imported KML files? What are the
requirements for KML files? Yes. Click on the “KML” icon on the functions menu to select
the file. The KML file type must be linear, and the format of the field for absolute altitude in
the KML file must be “absolute”.
What is “mission altitude” in a variable altitude flight path mission? It is the distance
between the flight plane and the plane between Points A, B and C.
Can a flight path be executed in reverse sequence in a variable altitude flight path
mission? Yes a flight path can be executed in reverse sequence. After a flight path has been
generated from recorded waypoints, click on the reverse sequence button at the bottom of
the interface to reverse the waypoint flight sequence.

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In what scenarios can sloping flight paths be used? They are useful for scenarios involving
model elements such as hillsides and building facades. Sloping flight path planning
generates flight paths automatically for a sloping surface or facade, and successfully collects
the photogrammetric data.
What is the function of the plan view of the flight path when executing a sloping flight
path mission? During a sloping flight path mission, the app interface will display a image
transmission window, a map view window and a plan view window. The plan view window is
at the bottom-right corner of the interface. During a mission, it is able to display the flight
path from a perspective that is vertical to the plane, so as to assist in determining the area to
be mapped and positioning the aircraft.
What are “mission distance” and “mission altitude” in a sloping flight path mission?
“Mission distance” and “mission altitude” are both used to adjust the distance between the
flight plane and the plane between Points A, B and C. If the slope is steep or completely
vertical, you can select the mode of being perpendicular to the target plane, and adjust the
distance between the flight plane and the plane between Points A, B and C by setting the
“mission distance”; if the slope is relatively flat, you can use the mode of being perpendicular
to the horizontal plane, and adjust the distance between the flight plane and the plane
between Points A, B and C by setting the “mission altitude.”
How do I ensure flight safety when planning a sloping flight path? When planning the
waypoints for a flight path over the sloping plane between Points A, B and C, pay attention to
the area to be mapped based on the default expanded distance from Point C, and ensure
there are no flight safety hazards within the default expanded area.
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=36.5*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.
MAPPING

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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.
When I collect orthoimages with the Phantom 4 RTK, what may cause inaccuracies in
elevation? Possible causes include:
1. The GCP is set in a different coordinate system or height datum from that of the
Phantom 4 RTK’s position. Please make sure they are in the same coordinate system.
2. The Phantom 4 RTK’s RTK status is not “FIX”. Ensure that the RTK status is “FIX” when
collecting data.
3. The internal camera parameters used by the post processing software are not
accurate.

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If the internal camera parameters used by post-processing modeling software are
inaccurate, resulting in an inaccurate altitude, how can altitude precision be improved
when collecting orthophotographic data using a Phantom 4 RTK? “Altitude Optimization”
is already set by default in the parameter settings for the “2D Photogrammetry” and “Block
Segmentation” planning modes. After this function is enabled, the Phantom 4 RTK will return
to the center of the mapped area after completing the flight path, and gather images of the
sloping features to improve altitude precision. This function is only applicable to the “2D
Photogrammetry” and “Block Segmentation” planning modes.

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What are the differences between the D-RTK 2 High Precision GNSS Mobile Station and
the D-RTK 2 High Precision GNSS Mobile Station For Matrice Series?
Appearance: The Matrice version has a "For Matrice Series" mark on the body of the Mobile
Station.
If no new firmware updates are run, the D-RTK 2 High Precision GNSS Mobile Station is
compatible with the Agras MG series, Phantom 4 RTK, P4 Multispectral, whereas the D-RTK 2
High Precision GNSS Mobile Station For Matrice Series is compatible only with the Matrice
210 RTK V2.
If no new firmware updates are run, the D-RTK 2 High Precision GNSS Mobile Station can be
used as a rover station and as a handheld RTK to set ground control points manually. Support
is coming soon for using it as a base station. The Matrice version can currently be used as a
rover station and will be able to be used as a base station.
How do I run the unifying firmware update of the D-RTK 2 High Precision GNSS Mobile
Station and the D-RTK 2 High Precision GNSS Mobile Station For Matrice Series?
1. When upgrading the unifying firmware of the D-RTK 2 High Precision GNSS Mobile
Station, you can choose the corresponding operation mode to make it compatible with
Agras series, Phantom 4 RTK, P4 Multispectral, Matrice 210 RTK V2, and Matrice 300
RTK.
2. Users of the Matrice Series version can download the latest DJI Assistant 2 for Matrice
on the Matrice 300 RTK download page to upgrade its firmware to the latest version. If
you are unable to link your D-RTK 2 High Precision GNSS Mobile Station For Matrice
Series to Matrice Series aircrafts, please contact the DJI after-sales representatives for
help.
3. Users of the D-RTK 2 High Precision GNSS Mobile Station can run the unifying firmware
update via the aircraft’s operating app or DJI Assistant 2 after the firmware updates for
the following products are complete.
Aras T16/T20: V 02.03.02xx and above; Phantom 4 RTK: V 02.02.05xx and above
Note: refer to the actual firmware release for what the xx stands for in the version
number.
RTK-2 MOBILE STATION
PRODUCT

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4. DJI will only produce regular D-RTK 2 High Precision GNSS Mobile Stations in the
future, which will be compatible with Agras series, Phantom 4 RTK, P4 Multispetral,
Matrice 210 RTK V2 and Matrice 300 RTK. You can run firmware updates for the Agras
series and Phantom 4 RTK through their operating apps or DJI Assistant 2. However, it
is recommended to upgrate Matrice series firmware through DJI Assistant 2.
5. How do I switch between different operation modes after running the unifying
firmware update? D-RTK 2 High Precision GNSS Mobile Station supports 5 operation
modes that work with different products. You can refer to the form below and choose
the relevant operation mode.
a. Long press the mode button for 2 seconds to begin mode-switching. (the
indicator light will change from green to yellow)
b. Short press the mode button to switch between different modes, the newly
selected mode will be in effect 2 seconds after a selection is made. You can
refer to the table below for more details.
c. If no action is taken after 2 seconds, the Mobile Station will remain in its
current operation mode.
Modes
Product Name & Compatible
Products
Number of Indicator Blinks
Operation Mode 1
Rover Station
(Agras T20 / Agras T16 / MG-1P
RTK / Phantom 4 RTK/ P4
Multispectral)
1
Operation Mode 2
Base Station*
2
Operation Mode 3
Handheld Mapping Device
(Agras T20 / T16 / MG-1P RTK/
Phantom 4 RTK)
3
Operation Mode 4
Rover Station (Matrice 210 RTK
V2)
4
Operation Mode 5
Rover Station (Broadcast Mode,
Matrice 300 RTK）
5
* Support coming soon
What satellite navigation systems does the D-RTK 2 High Precision GNSS Mobile
Station support? The D-RTK 2 High Precision GNSS Mobile Station supports four satellite
navigation systems: GPS, GLONASS, Galileo, and BEIDOU. It is capable of receiving 11
signals: GPS L1, L2, L5; GLONASS L1, L2; Galileo E1, E5A, E5B, 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 sets of RTK receivers, antennas,
and radios. 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.

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b. Performance differences: D-RTK has two versions that receive GPS+BDS or GPS+
GLONASS signals depending on different regions and signal coverages. D-RTK 2
Mobile Station only has one version globally that supports four satellite navigation
systems: GPS, BEIDOU, GLONASS, and Galileo, receiving 11 signals, which is more than
the signals the D-RTK can receive. The new antennas ensure better signal reception and
higher positioning accuracy.
Why does the D-RTK 2 High Precision GNSS Mobile Station not support D-RTK? Because
the data links are different.
Is there any region restriction on the operation of D-RTK 2 High Precision GNSS Mobile
Station after upgrading its unifying firmware? The Chinese version of the Mobile Station
can only be used in Mainland China. Please follow the local laws and regulations when using
other versions in other regions, specifically regarding support for 2.4GHz and 5.8 GHz
transmissions.
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 adapter
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.
POWER SOURCE

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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 coorinates 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.
USING THE D-RTK 2 MOBILE STATION