I just noticed an intermittent timing error on the CDS overview. The RF Amp attached to port 8 of CER fanout-A has been showing a locking error on the oven controlled crystal oscillator. Image shows a 24 hour trend of the error signal alongside the Amp MEDM at a time when the system was in error. First error showed around 08:40 PST this morning, the large error stretches in the plot are roughly between 18:30 to 19:30, and from 22:15 to now (23:00).
I had thought that the times Dave gave me over the phone almost lined up with increases in range, but maybe not. Attached screenshot shows the last several hours of his error flag (blue) and the sensmon range (yellow), doesn't really seem to be a relationship.
This oscillator source started going wonky around 11/5/2019 21:03 UTC
Tagging @Detchar, in case they can add more to the impact of these channels (and just in case they've also found this as an idea for correlation with the range drops).