J. Kissel

Since we've put the End-Station VEAs on the wall, we noticed that today at 14:12 UTC (Jun 05 2017 07:12:00 PDT) the noise in the XVEA temperature sensor we've posted (H1:CAL-PCALX_RECEIVERMODULETEMPERATURE) dropped by a factor of two. Then, at 23:45 (Jun 05 2017 16:45 PDT) the higher noise state returned. Today's OPS Report suggests that no one went to any end station. More detailed trending shows that this decrease in "temperature" noise did *not* show up in any other VEA temperature sensor. 

Given the rash of what appears to be faulty Beckhoff ADCs (see FRS Tickets 6024, 8250), I wonder if there may be a problem here...

In other news, the very peaky, higher amplitude diurnal temperature oscillations are back.

I'll talk with Bubba tomorrow.