With the help of Yoshinori

As reported in kog 9293 in ETMY, only F0, F3 and BF at that time were free.
In these days we noticed that, when guardian turn on the GAS filter loops, F3 and BF controls got saturated very fast because of the line at 238 Hz.
Today We started to investigate the reason of this behavior and we checked  the status of GAS Filters.

-Pic 1 show the Specra of F0, F3 and F3: looking at this picture seems that F3 is stucked is somewhere.
-Pic 2 show the trend of F3 GAS in the last two months: looking at these data seems that F3 got stucked around the beginning of July.
Because of this the F3 control loop has to be turned off.

-BF GAS,because of temperature variation at Yend (see Pic 3), is drifted of about 0.8 mm from the set point.
To reset the performance of the BF GAS loop we changed temporaly the setpoint of BF GAS (to avoid to move the fishing rod):
 

old  2520 new 3350.