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36 lines
1.8 KiB
Markdown
36 lines
1.8 KiB
Markdown
# Level Horizon Calibration
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You can use _Level Horizon Calibration_ to compensate for small misalignments in controller orientation and to level the horizon in the _QGroundControl_ flight view (blue on top and green on bottom).
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:::tip
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Performing this calibration step is only recommended if the autopilot's orientation is visibly misaligned with the specified orientation, or if there is a constant drift during flight in not position-controlled flight modes.
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:::
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## Performing the Calibration
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To level the horizon:
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1. Start _QGroundControl_ and connect the vehicle.
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1. Select the **Gear** icon (Vehicle Setup) in the top toolbar and then **Sensors** in the sidebar.
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1. Click the **Level Horizon** button.
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::: info
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You should already have set the [Autopilot Orientation](../config/flight_controller_orientation.md). If not, you can also set it here.
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:::
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1. Place the vehicle in its level flight orientation on a level surface:
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- For planes this is the position during level flight (planes tend to have their wings slightly pitched up!)
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- For copters this is the hover position.
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1. Press **OK** to start the calibration process.
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1. Wait until the calibration process is finished.
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## Verification
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Check that the artificial horizon displayed in the flight view has the indicator in the middle when the vehicle is placed on a level surface.
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## Further Information
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- [Advanced Orientation Tuning](../advanced_config/advanced_flight_controller_orientation_leveling.md) (advanced users only).
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- [QGroundControl User Guide > Sensors](https://docs.qgroundcontrol.com/master/en/qgc-user-guide/setup_view/sensors_px4.html#level-horizon)
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- [PX4 Setup Video "Gyroscope" - @1m14s](https://youtu.be/91VGmdSlbo4?t=1m14s) (Youtube)
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