J. Kissel, V. Lhuillier

With all SUS damping loops closed and with the ISI in full isolation, I've taken open loop gain transfer functions of the H1 SUS ITMY's Vertical and Roll Level 2.1 damping loops. As predicted by design, and by what was seen on H1 SUS ETMY there is plenty of phase margin, and no features around 6.18 [Hz].

NEXT: Determine whether it's the coils or the sensors, or some nasty interaction between them.