When night load is installed on Matrice4, the compass will be abnormal.

Recently, some users may encounter the following:

1. When the DJI AS-1 megaphone is not powered on, it will cause the compass of the Mavic 4 to be abnormal.

2. However, after the DJI AS-1 is powered on, the compass becomes normal instantly.

This situation is in line with expectations.

Currently, up to three compass calibration data can be saved in the aircraft:

1. Single aircraft;

2. Aircraft + megaphone; (bound to megaphone sn, invalid when changing megaphone)

3. Aircraft + megaphone + searchlight; (bound to megaphone sn, invalid when changing megaphone)
The magnetic field interference of the megaphone is very large, which will affect the aircraft compass. Therefore, if you install an unpowered megaphone on the aircraft, there will be magnetic field interference (the calibration data used by the aircraft at this time is the "single aircraft" one), so there will be a prompt; but after the megaphone is powered on and the aircraft recognizes the load, the aircraft calls the calibration parameters of "aircraft + megaphone" and no error will be reported; (the premise is that the user has calibrated "aircraft + megaphone" before)