I never said I didn’t do that. I just asked about the natural frequency of internal isolation board. I tested this myself by logging all accelerometers and gyros. It seems that the natural frequency is around 15-25 Hz but it’s heavily dampened. However I cannot see a substantial difference between any of the gyros. It’s as if all of them were isolated.
Gyros plot after light drop test of Cube:
I already measured the vibration of our heli and the results are non-surprising. There are strong vibration with the frequency of the rotor speed. Second harmonic (for every blade passing) is the strongest and further harmonics are present.