My external compass offsets are quite large - X-945, Y-372, Z-765. I’ve recalbrated several times and they are always high. The compass/gyro is attached to a 3D printed platform held in place with Velcro. Are there settings in the compass/gyro that should be changed? Any suggestions to improve them.
mRo GPS u-Blox Neo-M8N BGP + Duo Mag + USB
What are the screws made of?
Also be aware that those cheap telemetry modules have some really BAD antennas provided with them that can cause all sorts of noise in the system.
Metal. I will remove them and see what happens. Unfortunately my compass just died. It won’t calibrate and doesn’t show any movement. Even in the U-Center program doesn’t show any response. The GPS still works. I switched to the internal compass in the PX4 and it gives similar high numbers when calibrated. It’s not held down with screws. I will try recalibrating the internal compass without the telemetry turned on.
The internal compass is usually not alol that good. Although I don’t have that particular mRo unit, their equipment has proven to me to be very good. Are you calibrating the compass outside away from any metal/ manmade structures?