Reports until 10:17, Wednesday 01 August 2018
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marc.pirello@LIGO.ORG - posted 10:17, Wednesday 01 August 2018 (43173)
Swap ALS phase frequency discriminator (PFD) Round 2

Ed Marc Daniel

We swapped the ALS PFD again with a tested unit that had its LO TNC/PCB/SMA/SMA/coax/SMA input arrangement replaced by a simple TNC/coax/SMA. Furthermore, the TNC connectors are no longer isolated. This should reduce any crosstalk inside the PFD between the 2 ALS VCOs.

SN of the modified tested spare which was installed Tuesday is S1000756, SN of the chassis that was removed is S1000761.

Round 1 of this work is in this ALOG

This completes WP7740