User Manual

USER GUIDE

6.17 Configuring/Calibrating the Magnetic Compass (GPS Required)

6.17.1 Using the Compass with Fixed Wing Airframes

The magnetic compass built into the GPS/Mag is automatically disabled for fixed wing airframes, and

automatically enabled for multirotors.

For fixed wing airframes, using the compass offers these benefits:

 The magnetic compass operates even if the model is moving slowly, or not at all. If RTH is triggered

downwind, and the wind is so strong that the model is moving very slowly toward home, or even losing

ground, the GPS course readout may not be accurate, which could cause the RTH system to not be able to

identify the direction to home without the compass.

 Loiter and RTH circling modes may be more precise

 The compass reading can be used for easy determination of the “RADAR Up Direction” or the EagleEyes

tracker’s “0 degree pan” settings.

However, if you decide to use the compass with fixed wing, it’s very important that the mounting, installation

and calibration guidelines for the GPS/Mag are followed, or the compass can make things much worse!

To enable the compass for fixed wing, navigate to the “Calibration and Sensor Setup” menu from the main

menu, and change “Enable Compass/Magnetometer” to “Yes”.

6.17.2 Calibrating the Compass

Compass calibration should be done with the model away from electrical fields and metal objects. The best

place to calibrate the compass is outdoors, at the field where you will be flying.

6.17.2.1 Steps before Calibrating

Before calibrating the compass, make sure that the compass is

installed correctly, and that all equipment you plan to fly with,

including cameras, canopies, etc., are fully installed on the model,

and turned on. Adding equipment later can impact the compass

calibration!

6.17.2.2 Calibrating using the Stick Menus

To calibrate the compass using the stick menus, follow the steps

below. If you get errors when calibrating, make note of the error

number in the OSD notification message, and see the description

of that message in section 14 – ‘Notification Messages’ of the

manual.

1) Invoke Compass Calibration mode by selecting the “Compass Working ok (if used)?” menu item under

the “Preflight Checklist” menu.