[Fil Arnaud]

The upper left osem of the ETMX PUM remains noisy : its noise floor is higher than LR by a factor of ~5 @10hz, see red curve vs green of 1st pdf.
To make sure it didn't come from some electronics noise, Fil unplugged the cable between the vacuum flange and the PUM. The noise floor went down by a factor of 15 @10hz, meaning it's definitely not coming from any of the electronics. cf blue of 2nd pdf before unplugging vs green after. The flag might be not centered as well as the other osems