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©
2022 DJI All Rights Reserved.
73
AGRAS T40/T20 P
Unmanned Aircraft Flight Manual
Return to Home (RTH)
Home Point:
The default home point is the first location where your aircraft received strong
GNSS signals
. Note that the white GNSS icon requires at least four bars before the signal is
strong.
RTH:
RTH brings the aircraft back to the last recorded home point.
There are three types of RTH: Smart RTH, Low Battery RTH, and Failsafe RTH.
Smart RTH
Press and hold the RTH button on the remote controller when GNSS is available to enable Smart RTH.
Both Smart and Failsafe RTH use the same procedure. With Smart RTH, you may control the altitude of
the aircraft to avoid collisions when returning to the home point. Press the RTH button once or push the
pitch stick to exit Smart RTH and regain control of the aircraft.
Low Battery RTH
Low Battery RTH is only available in Route and A-B Route operations. If the Low Battery Action is set
to RTH in the Aircraft Battery settings in the app, the aircraft will pause the operation and enter RTH
automatically when the aircraft battery level reaches the low battery threshold. During RTH, users can
control the altitude of the aircraft to avoid collisions when returning to the home point. Press the RTH
button once or push the pitch stick to exit RTH and regain control of the aircraft.
The aircraft will not enter RTH if the Low Battery Action is set to Warning in the Aircraft Battery settings in
the app.
Failsafe RTH
Refer to Emergency Procedures for more information about Failsafe RTH.
Updating the Home Point
You can update the home point in DJI Agras during ight. There are two ways to set a home point:
1. Set the current coordinates of the aircraft as the home point.
2. Set the current coordinates of the remote controller as the home point.
Make sure the space above the remote controller’s GNSS module (located inside the place above
the ight switch mode) is not obstructed and that there are no tall buildings around when updating
the home point.
Follow the instructions below to update the home point:
1. Go to DJI Agras and enter Operation View.
2. Tap
, then , and select in Home Point Location settings to set the current coordinates of the
aircraft as the home point.
3. Tap
, then , and select in Home Point Location settings to set the current coordinates of the
remote controller as the home point.
4. The aircraft status indicators blink green to indicate that the new home point has been set
successfully.
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