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16. Calibration
If you fly the Navigator 250 for the first time it is
necessary to calibrate it prior to the first take-off.
Remove the propellers before you proceed!
Only after you have successfully completed the
calibration, mount the propellers again.
The Navigator 250 is calibrated in a 3-step procedure:
Channel learning
16.1 Preparation
Make sure the flight battery is fully charged.
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1. Remove the propellers.
2. Transmitter: Set travel of all channels to '+ –100 %' and trims to '0'.
3. Transmitter: Make sure that the throttle stick is in its mid-position (the sticks are spring
loaded and are centered by default).
4. Transmitter: Set all switches and knobs to their default positions (switches: position 1,
knobs: turn fully anti-clockwise).
5. Install the flight battery and turn the transmitter on.
16.2 How the calibration button works
The calibration button is integrated into the right rear LED (right button (25)). Press and
hold the button to enter calibration mode. Press 2 times quickly to start calibration. Press
1 time to skip/go to next calibration step. Refer to »Fig. 9.
When you calibrate the Navigator 250 for the first time you must not skip any steps.
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However, at a later point in time this feature may become useful when you want to calibrate
only one item (e.g. compass) but not the others.
24 | Calibration
Gyro
Compass
Press and hold
Channel learning
Calibrate
Fig. 9
16.3 Entering calibration mode
There are two ways you can enter the calibration mode:
■
Calibration button (right button): Press and hold it for at least 2 seconds. The rear LEDs
turn solid red (channel learning).
■
Transmitter switch 'SWB': Flip the switch 5x from 1 to 3 and back to 1. Channel
Learning is entered automatically.
16.4 Calibration indicators
The rear LEDs indicate each calibration step.
Channel learning
(Red)
Calibration completed, ready to fly
Gyro
Compass
Calibrate
Calibrate
Gyro
Compass
(Green)
(Magenta)
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