dji PVT581 - Compass Calibration Procedure; Compass Calibration Safety Rules; Recalibration Trigger Conditions; Calibration Step-by-Step

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lead topoorflight performance or even flight failure. Compass Calibration MUST be done for the first time use.
It is recommended to calibrate the compass outdoorsafter the Controller Unit finds 7 or moreGPS satellites.
Regular calibration enables the compass to keep optimal performance.
Calibration Cautions
(1) DO NOT calibrate your compass where there is strong magnetic interference, such as magnetite,
car park, and steel reinforcement under the ground.
(2) DO NOT carry ferromagnetic materials with you during calibration, such as keys or cell phones.
(3) Compass Calibration is very important; otherwise the flight control system cannot work.
Situations that require recalibration
Situations
Descriptions
CompassData abnormal
LED blinks red and yellow alternatively.
Flying field altered
Flying field has changed over a long distance.
Mechanical alteration
The mounting position of GPS-COMPASS PRO modulechanges.
Electronic units such as Controller Unit, CAN-HUB, battery etc. have been added,
removed, remounted or other alterations.
Mechanical structures of the aircraft has changed
Drifting during flying
Evident drifts occurred in flight such as the aircraft doesn’t fly straight
Attitude errors
LED often blinks error indicator when the aircraft turns around.
Calibration Procedures
Choose an open space to carry out the following procedures.
Control
Mode LED
Aircraft LED
Aircraft LED
Quickly flip the control
mode switch
360
o
Rotate the aircraft
horizontally
360
o
Rotate the aircraft
vertically
(Nose downward)
Manual
GPS
Manual
GPS
GPS->Manual->GPS once
Start horizontal calibration
Start vertical calibration
Succeed
Fail
GPS->Manual->GPS
Flip 6~10 times
Start
cali
Re-calibrate
Aircraft LED