Jenne, Chris Whittle

When exciting H1:SUS-ITMX_L3_LOCK_L_EXC using awggui for ongoing ITMX charge investigations, we observed an output voltage with a sinusoid offset from 0 (i.e. varying between 0 and 1k counts instead of +/-1k), despite having explicitly set offset to 0. This also resulted in a pervasive comb in DARM. We saw this at excitation frequencies 16 Hz and 16.55 Hz (no others were tested).

Closing and restarting awggui resolved the issue.