Notch filter settings when using ESC Telemetry with Multi-Source

https://ardupilot.org/copter/docs/common-esc-telem-based-notch.html#esc-telemetry-based-harmonic-notch-setup

Per the warning when enabling multi-source, is the general rule that the divisor for the bandwidth should be related to the number of motors, aka 6 for hex? Does the same hold true for the attenuation? Is the attenuation shared between all the notches created via multi-source, or is the attenuation per individual motor notch?

The attenuation could be left at default, but if you can use less and still remove all or most of the noise that is better.

1 Like

On a hexa i tuned, i had to reduce it from 40dB to 9dB.
Then it removed just the noise and did not create a valley.