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CAL (General)
takahiro.yamamoto - 16:23 Thursday 29 May 2025 (33954) Print this report
Adjustment of CAL line demodulation

Hido-kun finalized frequency of calibration lines as 27.65Hz for SUS_TM, 28.67Hz for XPcal_1 and 31.53Hz for XPcal_2.
So I modified band-pass configuration of CAL line demodulation on the front-end calibration.

Changes by "Diff" on GDS_TP is shown in Fig.1.
They are volatile information and vanish after loading filter coefficients.
In addition, frequency of LOs were updated and registered to observation.snap (Fig.2) and safe.snap (Fig.3).

Same information reproduced from archives of foton files and sdf snapshots are shown in Fig.4-5.
A script for showing differences in foton files and sdf snapshots prepared in klog#33885 seems to work fine.

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