We have measured the spectrum of the piezo correction, through the channel PZT mon.

In the plot we took into account the factor 100 of attuation of the channel PZT MON and we used the calibration 2 MHz/V.

The spectrum looks similar to that we measured in july.  We fitted it with the curve 7.5 kHz/f, which is compatible with the expected free running laser noise.

I attach the .txt file with data not calibrated.