= FFU filters of center-side =
measured around FFU filters of center-side in clean room
[[attachment:ffucenter.jpg|jpg]]

FFU filter: on, cryocooler: off, fun for EXC chamber: on

There is noise in 4-9 MHz.

== 0-250 MHz ==
{{attachment:ffucenter_0_250.png|png}}

== 0-5 MHz ==
{{attachment:ffucenter_0_5.png|png}}

== 0-20 MHz ==
{{attachment:ffucenter_0_20.png|png}}