User manual

24
c) Calibration of the Compass
The quadrocopter has a compass with the help of which it can
control the ight direction and ight altitude.
Before the quadrocopter can be started, the compass must be
calibrated. We recommend calibration before each ight.
After a site change to another starting position, the compass
must be calibrated.
To calibrate the compass in the free eld, proceed as follows:
• Switch the toggle switch „GPS“ 5 times quickly from the front
position (position 1) to the rear position (position 2) and back.
The status LEDs at the quadrocopter must be permanently lit
yellow (red and green).
• Hold the quadrocopter horizontally (see gure 17, illustration
A) and turn it around its vertical axis until the status LEDs
switch to green (at least 360°).
• Then hold the quadrocopter with the front propellers vertically
down and turn it 360° around the longitudinal axis (see gure
17, illustration B), until the status LEDs go out.
• Calibration is complete.
• Return the quadrocopter to the normal position.
• After a brief time, the status LEDs will ash according to the
GPS satellites received.
• If the status LEDs ash red and yellow, calibration was defec-
tive and must be repeated.
Figure 17