> We need the swept sine injection using the shaker which was placed the IYC site of the GV by checking the existence of the critical frequency before starting the cooling down.
We performed the swept sine injection for this.
Analysis would be appeared later.

07:50 - 08:20 swept sine shaker inejction near the BS-IYC GV IYC side
Low frequency 10 Hz
High frequency 300 Hz
Rate 1800 sec
Gain 800 count
Excitation channel K1:PEM-EXCITATION_SR3_RACK_2_EXC

Ref :
ACC near the IP
K1:PEM-PORTABLE_BS_BOOTH_BS_BNC3_OUT_DQ

ACC near the shaker
K1:PEM-PORTABLE_BS_BOOTH_BS_BNC4_OUT_DQ