The digital noise correction  was not propagated to the DSP, the numerical noise  is always computed to monitor this issue.

At 017-03-24-04h25m11-UTC I enable the numiracal noise substraction(NNS)

017-03-24-04h25m11-UTC    info masserot     'NNS subtraction:Enable NNS [ramp duration=1,weigh of digital noise corr=1]' sent to SSFS_Ctrl

first plot show the digital noise without the NNS,

second plot with the NNS ON where one can see  the reduction of the remaining numerical noise

At 2017-03-24-04h44m03-UTC     I reset the DSP filter registers

2017-03-24-04h44m03-UTC    info masserot     'SSFS filter:B4: reset all DSP filters [filter=2]' sent to SSFS_Ctrl

third plot with NNS ON  show the increase of the digital noise correction  after 20mn

the fourth plot with NNS ON show the reduction of the digital noise after reseting the DSP filter registers