WEB

quiet ref
1379702998  25 Sep 2023 18:49:40 UTC  (25 Sep 2023 20:49:40 CEST)

small coil axis EW
18:56:20 UTC start sweep (8-330, 5V, 600s)
glitch (usual 30-min glitch)
we excited a lot the crossbar mode (48Hz)
then (when injecting at around 100hz) a broadband noise 20-60Hz increases, and stays up for some minutes...
19:07:09 UTC stop

small coil axis NS
19:11:02 UTC start
again we excite a lot the crossbar
again we onset some noise 20-30Hz (but less evident)
maybe we are disturbing the some control...
we see the 48Hz crossbar keeps excited all along the sweep (!)
maybe we are disturbng the WE marionette control
19:21:33 UTC stop

small coil axis VERT
19:23:27 UTC start
initially (up to 30Hz) there is evident non-lin behaviour in the current, 
means the amplifier is distorting (maybe because now the coil touchs the 
metal body of the tower and sees a different impedence of the coil)
when the injection is above 100Hz, the broadband noise 20-60Hz increases again!
the effect of the line in Hrec seems smaller.

NOTE: the TF should be computed with respect to the magnetometer 
(ENV_WE_MAG) and not the current
19:34:33 stop

NEB

quiet reference
1379706936  25 Sep 2023 19:55:18 UTC  (25 Sep 2023 21:55:18 CEST)

unplug F7 motor crate
1379707207  25 Sep 2023 19:59:49 UTC  (25 Sep 2023 21:59:49 CEST)
no visble effect

20:09 UTC we unlocked ITF by moving around NE
coil axis EW