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DJI Mavic 3 Enterprise: First-time Survey Setup Guide

DJI Mavic 3 Enterprise with RTK Module

The DJI Mavic 3 Enterprise is an enterprise survey-grade drone designed for high-accuracy mapping. It is the perfect combination of portability and usability.

Preparation

In order to use the Mavic 3 Enterprise for survey applications, please make sure of the following:

  1. Batteries are charged.
  2. Drone is in flying condition.
  3. D-RTK 2 Mobile station is set-up and ready to use.
  4. Micro SD card (to be inserted into Mavic 3 Enterprise), UHS Speed Class 3 required, Video Speed V30 or above preferred.
  5. Firmware/Software versions of the aircraft, remote controller, and the D-RTK 2 Mobile Station are up to date.

Camera Settings

For surveying needs, the camera needs to be set up correctly in order to get high-quality and accurate data. Please follow the steps below:

1. Select 4:3 as the image ratio and "JPG" as the image format.

QBase Above Max. Area Altitude which creates a flight path
2. Make sure Auto Focus Continuous (AFC) is selected as the focus option. Set Auto Exposure (AE) is unlocked.
Mean Sea Level (MSL) in QBase
3. Click camera mode and select "M" (manual) mode. Modify your ISO and aperture according to the surroundings. It is recommended that the shutter speed be faster than 1/500s.
4. Under the camera view, go to camera settings and make sure the "Mechanical Shutter" option is enabled and the "Dewarping" option is disabled.
QBase Above Ground Level
5. If you are using an SD card for the first time or if it is a new SD card, make sure to format it under the camera settings page.
QBase Ground Sample Distance (GSD)

NTRIP Network RTK and D-RTK 2 Mobile Station

In order to use your Mavic 3 Enterprise with an NTRIP Network or DJI D-RTK 2 Mobile Station, you would need to install the RTK module. Install the module on top of the Mavic 3 unit. Make sure that the screws on both sides are securely tightened. After installing the RTK module, an additional RTK setting tab will pop up under the Aircraft Settings page.
QBase Cross Legs option
To use RTK for surveying, enable "RTK Positioning" and disable the "Maintain Positioning Accuracy Mode" options.

Custom Network RTK (NTRIP Account)

In order to use a custom network RTK (by using your own NTRIP account), the following steps should be executed:
1. Select "Custom Network RTK" as the RTK service type under the RTK settings page. Enter the account address, access port, username and password. Additionally, identify the mount point you would like to use. Then click save.
After clicking save, if the status of the aircraft RTK positioning is indicating as "Fix", it means the RTK service is working normally.

D-RTK 2 Mobile Station

If you want to use DJI's D-RTK 2 Mobile station, make sure of the following:
1. Make sure to switch the DRTK2 to Mode 5 and set the DRTK2 on a known WGS84 coordinate. Then finish the mobile station setup and link the mobile station with the Mavic 3 unit.

2. Turn the mobile station on and wait until It finishes searching for satellites. Open the RTK settings page and choose "D-RTK2 Mobile Station" as the RTK service type. If the status of the aircraft orientation and positioning are indicating "Fix", then it means the RTK service is working.

3. Offset the known coordinates of the D-RTK2 mobile station. On the bottom of the RTK settings page, tap on "Advanced Settings", select "GPS Coordinate Input" and then enter the known WGS84 coordinates and click save. Make sure to offset the altitude of the point on the ground by adding the DRTK2 mobile station height of 1.8m with the DJI stock DRTK2 rod. If you are using a third party rod, the height offset needs to be pre-measured.
RTK antenna
4. Make sure the mobile station's coordinates are changed to the offset values. You can find this in the RTK status chart. Additionally make sure the RTK positioning indicates "Fix".

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