Late post for DAS setup work on Thursday yesterday. Jenne, Wanda, Gizem, with Jonathan and Nyath helping get our remote access set up.
* EX, Fil connected a patch cable between fiber chassis and our termination fiber. This patch cable was FC-APC on the end that was connected to the fiber chassis, and FC-UPC connected to the FC-UPC termination cable. We were trying this mismatch between the FC-UPC of the chassis to a patch cable, in hopes that that would reduce any etalon effect between the UPC-UPC connectors. It didn't seem to help much.
* Xarm, Did a test for a while where Fil connected both our DAS channels to 2 fibers (#23 and #24) on the Xarm, to see if that made any difference in the noise; no impact, so eventually went back to just using #24 on X and #24 on Y.
Eventually we realized that the reason the data looked noisier is that we had changed some acquisition settings (effectively, changing our averaging). So, nothing actually changed in the overall performance of the system, which is good (we had thought that somehow we made it much worse between Mon and Wed).
We started an overnight data set using 500 Hz sample rate, to see that hopefully this is an okay balance between big file sizes and going up to high enough frequency to be useful. Xarm was connected to the Febus instrument, and Yarm to the Sintela instrument.
Also in the afternoon we got the remote connectivity working for both the Sintela and the Febus instruments.