DJI Naza-M Lite - Manual (Page 35)

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Flight
Digital Compass Calibration
Without GPS, please skip this step
Why calibrate the compass?
Ferromagnetic substances placed on multi-rotor or around its working environment will affect the reading of earth
magnetic field for the digital compass. It also reduces the accuracy of the multi-rotor control, or even reads an
incorrect heading. Calibration will eliminate such influences, and ensure MC system performs well in a non-ideal
magnetic environment.
When to do it?
 The first time you install NAZA-M LITE on your multi-rotor.
 When the multi-rotor mechanical setup has changed:
a) If the GPS/Compass module is re-positioned.
b) If electronic devices are added/removed/ re-positioned (Main Controller, servos, batteries, etc).
c) When the mechanical structure of the multi-rotor is changed.
 If the flight direction appears to be shifting (meaning the multi-rotor doesn’t “fly straight”).
 The LED blinking, often indicates abnormality blinking when the multi-rotor spins (It is normal for this to happen
only occasionally)
What not to do:
 Don’t calibrate your compass where there is strong magnetic interference, such as magnetite, car park,
and steel reinforcement under the ground.
 DO NOT carry ferromagnetic materials with you during calibration, such as keys or cell phones.
 You don’t need to rotate your multi-rotor on a precise horizontal or vertical surface, but keep at least
45° difference between horizontal and vertical calibration.
 The GPS will not work in the polar circle.
Calibration procedure
STEP1: Quickly switch the control mode switch from Manual. Mode to GPS ATTI. Mode and back to Manual.
Mode for 6 to 10 times, The LED indicator will turn to constantly yellow .
STEP2: Rotate your aircraft around the horizontal axis (about 360 o ) until the LED changes to constant green
, and then go to the next step.