Robert, Anamaria

We did a test of the RGA at the X end station. Its peaks seem to be at around 79.5 Hz and 158.7 Hz. We were not able to see a change in DARM BUT the 80ish Hz bump was not there to begin with. We did blast a line at that frequency and saw no coupling to DARM. The 79.5 Hz peak lines up suspiciously with the center of the usual bump. Quite unlikely, but to be sure that's not it we could still do an off test when the peak is present in DARM.

Last night we did a similar test in the corner station. We didn't have sensors super close so the peaks are not as obvious but they seem to be at 75 and 158.5 Hz. This also had no effect on 80 Hz bump.