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©
2020 DJI All Rights Reserved.
15
AGRAS T20
User Manual
with an RTK dongle uses the RTK dongle connected to the remote controller to record measurements,
while walking with a handheld RTK uses the D-RTK 2 mobile station to record measurements. Make sure
that the aircraft is powered off when planning your ight route.
The following descriptions use walking with RTK dongle as an example. Walking with a handheld RTK is
similar to walking with an RTK dongle except users should walk with a mobile station instead of a remote
controller.
1. Make sure that the RTK dongle is mounted to the remote controller.
2. Power on the remote controller, swipe from the top of the screen, and make sure that USB is
disabled.
3. Go to the home screen in the app, tap Plan a Field, and select RTK Dongle. If both the RTK dongle
and D-RTK 2 mobile station are connected, tap Plan a Field, then Walk with RTK, and select RTK
Dongle.
4. Go to
, tap RTK to select the RTK source, and complete conguration. Wait until the system status
bar in the upper left corner of the screen turns green, indicating that RTK positioning is in use.
5. Walk with the remote controller alongside the boundary of the operation area and tap Waypoint C2 or
press the C2 button on the remote controller at turning points.
6. Mark any obstacles:
Use one of the two methods below to mark any obstacles in a target eld.
① Tap Obstacle Mode C1 onscreen or press the C1 button on the back of the remote controller.
Next, walk with the remote controller around the obstacle and tap Add Obstacle C2 onscreen or
press the C2 button to add points for the obstacle. Finally, tap Waypoints Mode C1 or press the
C1 button when nished.
②
Tap Obstacle Mode C1 onscreen or press the C1 button on the back of the remote controller.
Next, walk with the remote controller to the obstacle, and then tap Circle. A red circle will appear
on the map. Drag the circle center to adjust the position of the obstacle, and drag the red point
on the circumference to adjust the radius of the obstacle. Finally, tap Waypoints Mode C1 or
press the C1 button when nished.
7. Continue measuring the field by walking with the remote controller alongside the boundary and
adding waypoints at each corner of the field. Tap Done when the field has been measured and
all obstacles have been marked. The app produces a ight route according to the perimeter and
obstacles of the eld.
8. Add calibration point: Walk with the remote controller to the location of each calibration point. Tap
Calibration Point onscreen.
The calibration points are used to offset the bias of the flight route caused by the positioning
difference. Choose at least one existing landmark as the xed reference point for calibration when
executing the same operation. If none are available, use an easily identiable object such as a metal
stake.
When using the D-RTK 2 mobile station for eld planning, refer to the D-RTK 2 Mobile Station
User Guide to link the remote controller and mobile station, and make sure that the mobile
station is the device controlled by the remote controller.
Walk with RC
Users should walk along the boundary of the field or the obstacles with the remote controller for
measurements. Make sure that the aircraft is powered off when planning your ight route.
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