Harmonic notch filter for Cube orange with Emax blheli_32 esc

ArduCopter
1

I want to know about the Harmonic notch filter.
Tarot 650 Iron Man frame
980kv Emax bldc motor
Emax blheli_32 esc
Cube orange with Here3 GPS
Can someone explain how do I set up for the Harmonic notch filter and what it does.

2

It’s fully documented:
Managing Gyro Noise