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M3E/M3T - RTK support exif
1270 9 2022-11-1
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South Korea

Hi, thereI have a question that Mavic 3 Enterprise and Therminal have a gps data captured when the rtk module is present and wheter such data functions like geotag

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South Korea

Thank you for your answer
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Pulled from a file via exiftool

ExifTool Version Number         : 12.49
File Name                       : DJI_20221103150859_0449_V.JPG
Directory                       : D:/Drone/Mavic3_Enterprise/DJI_202211031445_002_flatmap1
File Size                       : 8.4 MB
File Modification Date/Time     : 2022:11:03 15:08:59-04:00
File Access Date/Time           : 2022:11:03 23:15:08-04:00
File Creation Date/Time         : 2022:11:03 17:12:23-04:00
File Permissions                : -rw-rw-rw-
File Type                       : JPEG
File Type Extension             : jpg
MIME Type                       : image/jpeg
Exif Byte Order                 : Little-endian (Intel, II)
Image Description               : default
Make                            : DJI
Camera Model Name               : M3E
Orientation                     : Horizontal (normal)
X Resolution                    : 72
Y Resolution                    : 72
Resolution Unit                 : inches
Software                        :
Modify Date                     : 2022:11:03 15:08:59
Y Cb Cr Positioning             : Co-sited
Exposure Time                   : 1/250
F Number                        : 2.8
Exposure Program                : Program AE
ISO                             : 100
Sensitivity Type                : Recommended Exposure Index
Exif Version                    : 0230
Date/Time Original              : 2022:11:03 15:08:59
Create Date                     : 2022:11:03 15:08:59
Components Configuration        : Y, Cb, Cr, -
Shutter Speed Value             : 1/250
Aperture Value                  : 2.8
Exposure Compensation           : 0
Max Aperture Value              : 2.8
Subject Distance                : 0 m
Metering Mode                   : Average
Light Source                    : Daylight
Flash                           : No Flash
Focal Length                    : 12.3 mm
Warning                         : [minor] Bad MakerNotes directory
Flashpix Version                : 0100
Color Space                     : sRGB
Exif Image Width                : 5280
Exif Image Height               : 3956
Interoperability Index          : R98 - DCF basic file (sRGB)
Interoperability Version        : 0100
File Source                     : Digital Camera
Scene Type                      : Directly photographed
Custom Rendered                 : Normal
Exposure Mode                   : Auto
White Balance                   : Auto
Digital Zoom Ratio              : 1
Focal Length In 35mm Format     : 24 mm
Scene Capture Type              : Standard
Gain Control                    : None
Contrast                        : Normal
Saturation                      : Normal
Sharpness                       : Normal
Device Setting Description      : (Binary data 4 bytes, use -b option to extract)
Serial Number                   : 1581Fzxzxzxzxzxzxzxzxzxzx
Lens Info                       : 0.24mm f/2.8-11
GPS Version ID                  :
GPS Latitude Ref                : North
GPS Longitude Ref               : West
GPS Altitude Ref                : Above Sea Level
GPS Status                      : Measurement Active
GPS Map Datum                   : WGS-84
XP Comment                      : 0.9.142
XP Keywords                     : single
Compression                     : JPEG
Thumbnail Offset                : 1350
Thumbnail Length                : 25970
About                           : DJI Meta Data
Format                          : image/jpg
Image Source                    : WideCamera
Gps Status                      : RTK
Altitude Type                   : RtkAlt
Absolute Altitude               : +13.109
Relative Altitude               : +35.003
Gimbal Roll Degree              : +0.00
Gimbal Yaw Degree               : -179.20
Gimbal Pitch Degree             : -89.90
Flight Roll Degree              : -2.20
Flight Yaw Degree               : -179.80
Flight Pitch Degree             : -13.60
Flight X Speed                  : -9.8
Flight Y Speed                  : 0.0
Flight Z Speed                  : 0.0
Cam Reverse                     : 0
Gimbal Reverse                  : 0
Self Data                       :
Rtk Flag                        : 50
Rtk Std Lon                     : 0.04311
Rtk Std Lat                     : 0.04557
Rtk Std Hgt                     : 0.09065
Rtk Diff Age                    : 1.20000
NTRIP Mount Point               : RTCM3_Near
NTRIP Port                      : 10000
NTRIP Host                      : 40..111.111.111
Surveying Mode                  : 1
Calibrated Focal Length         : 24000.000000
Calibrated Optical Center X     : 0.000000
Calibrated Optical Center Y     : 0.000000
UTC At Exposure                 : 2022:11:03 19:09:20.071521
Shutter Type                    : Mechanical
Shutter Count                   : 449
Camera Serial Number            : 493Ozxzxzxzxzxzx
Drone Model                     : M3E
Drone Serial Number             : 158zxzxzxzxzxzxzxzxzxzx
LRF Status                      : Normal
LRF Target Distance             : 0.000
LRF Target Lon                  : 0.0000000
LRF Target Lat                  : 0.0000000
LRF Target Alt                  : 0.000
LRF Target Abs Alt              : 0.000
Version                         : 7.0
Has Settings                    : False
Has Crop                        : False
Already Applied                 : False
MPF Version                     : 0100
Number Of Images                : 2
MP Image Flags                  : Dependent child image
MP Image Format                 : JPEG
MP Image Type                   : Large Thumbnail (VGA equivalent)
MP Image Length                 : 738219
MP Image Start                  : 7671808
Dependent Image 1 Entry Number  : 0
Dependent Image 2 Entry Number  : 0
Image UID List                  : (Binary data 66 bytes, use -b option to extract)
Total Frames                    : 1
JFIF Version                    : 1.02
Image Width                     : 5280
Image Height                    : 3956
Encoding Process                : Baseline DCT, Huffman coding
Bits Per Sample                 : 8
Color Components                : 3
Y Cb Cr Sub Sampling            : YCbCr4:2:0 (2 2)
Aperture                        : 2.8
Image Size                      : 5280x3956
Megapixels                      : 20.9
Scale Factor To 35 mm Equivalent: 2.0
Shutter Speed                   : 1/250
Thumbnail Image                 : (Binary data 25970 bytes, use -b option to extract)
GPS Altitude                    : 13.1 m Above Sea Level
GPS Latitude                    : 26 deg 30' 2.xx" N
GPS Longitude                   : 81 deg 53' 46.xx" W
Preview Image                   : (Binary data 738219 bytes, use -b option to extract)
Circle Of Confusion             : 0.015 mm
Field Of View                   : 73.7 deg
Focal Length                    : 12.3 mm (35 mm equivalent: 24.0 mm)
GPS Position                    : 26 deg 30' 2.xx" N, 81 deg 53' 46.xx" W
Hyperfocal Distance             : 3.51 m
Light Value                     : 10.9

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DJI Natalia


Hi, there.
When using GNSS or RTK positioning, the photos will record the latitude, longitude and altitude information, which is actually the position at the moment of the photo, but under RTK positioning, the positioning accuracy is higher.
Besides, if there is anything else that we can help with, please let us know.
Thank you for your support.
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South Africa

HI all. My first post on the forum and new to the DJI community. I have recently purchased a Mavic 3 Enterprise with the RTK module

I started up the drone and controller and linked them. The aircraft and controller were linked to a dji account as per the prompts. I have updated the firmware to the latest version
All checks are ok and status is fine
However. I have turned off the aircraft and controller and installed the RTK module on top. Then turned on the aircraft and controller. However, it seems to me that the aircraft is not detecting the RTK module. See the status below. I have attached a screenshot showing the aircraft with the RTK module installed on top and the below screen shot of the status screen showing disconnected.
I have watched the tutorial videos of the RTK installation and its supposed to be simply plug the module in and it must be detected and then set up.
Things I have tried:
Unplugging and replugging the module
Reverting the aircraft and controller to the previous firmware version
Trying to start the aircraft outside to get better satellite coverage.
Do you know of any different procedure to get the RTK module detected or anything else I should try?

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Correct method to use the RTK module is:
- while drone is off open the connector cover and mount the RTK module in place, tighten the thumb screws down to finger tight.
- power on the controller (make sure you have internet connectivity on the controller)
- power on the drone (doesn't matter inside or out)
- once the drone is connected I believe there was a registration prompt that came up about the RTK module but I could be wrong
- go into camera view and settings, there should be a new section that shows for RTK, turn on RTK in there

If your still not getting anywhere then I would contact DJI support or your reseller as going by what you have said you have a faulty unit (could be the drone but is most likely the RTK unit)
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South Africa

swigmofa Posted at 11-17 08:32
Correct method to use the RTK module is:
- while drone is off open the connector cover and mount the RTK module in place, tighten the thumb screws down to finger tight.
- power on the controller (make sure you have internet connectivity on the controller)

Thanks that is the procedure I have done. I'm not getting any prompts and the RTK module is not showing up.

I have contacted the supplier to hopefully organise a replacement module
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United States

hi, similar question regarding the exif data with RTK, i have the following exif data with M3E, I am very new to geo referencing topic, please bear with me, and let me know if i need to create a new thread for this.

Camera Model NameM3E
OrientationHorizontal (normal)
X Resolution72
Y Resolution72
Resolution Unitinches
GPS Version ID2.3.0.0
GPS Latitude RefNorth
GPS Longitude RefWest
GPS Altitude RefBelow Sea Level
GPS StatusMeasurement Active
GPS Map DatumWGS-84
Image SourceWideCamera
Gps StatusRTK
Altitude TypeRtkAlt
Absolute Altitude-15.093
Relative Altitude+11.999
Rtk Flag50
Rtk Std Lon0.01078
Rtk Std Lat0.01274
Rtk Std Hgt0.02372
Rtk Diff Age0.80000
Surveying Mode1
UTC At Exposure2022:12:14 18:57:14.683925
GPS Altitude15 m Below Sea Level
GPS Latitude37º 52' 16.32" N
GPS Longitude122º 18' 54.70" W
I have several questions:
1) If I want to read the RTK GPS coordiantes, should i directly read the  GPS Lat/Lon values ? (seems so based on the discussion above, but wanted to confirm)
2) is the UTC At Exposure time synced with GPS time ?
3) Why is GPS Altitude Ref saying Below Sea Level ? is that because the base station is below sea level ? and then Absolute Altitude of -15.093 would mean 15.093 above sea level ?
4) at the end of the flight, I also have additional files such as PPKNAV.nav PPKOBS.obs PPKRAW.bin and Timestamp.MRK, are those files only needed if require PPK processing ? why would i need those files if the RTK is embeded in the EXIF ?
1-5 09:56
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Flight distance : 4726654 ft

bigull Posted at 1-5 09:56
hi, similar question regarding the exif data with RTK, i have the following exif data with M3E, I am very new to geo referencing topic, please bear with me, and let me know if i need to create a new thread for this.

I have several questions:

1) Yes you can read EXIF. Photogrammetry software does this very well. They even convert them to UTM (in meters) which makes measurements easier and more precise than with degrees minutes seconds.

2) Yes UTC

3) Below the sea level because there is a minus. If it is positive it would be written Above sea level. You understood the principle. -15 is "ellipsoidal" altitude and +11 is "geoidal"
Please note that photogrammetry software always reads the ellipsoid from DJI device. Which explains the discrepancy. See below *5)

4) Yes those files are for PPK. If you delete them I'm not sure DJI Terra appreciates them, but with Agisoft you can put them in the trash if you don't want to make PPK. As for the others, I do not know.

5) And finally, the answer to the question you will be asking in the next few minutes:
RTK Geoid elevations | DJI FORUM

1-5 12:01
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