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Entry  Mon Aug 14 20:12:09 2017, Jamie, Gautum, Update, CDS, Weird problem with GPS receiver 
    Reply  Tue Aug 15 16:32:42 2017, Jamie, Gautum, Update, CDS, GPS receiver apparently set to correct mode as "UTC" 
Message ID: 13211     Entry time: Tue Aug 15 16:32:42 2017     In reply to: 13207
Author: Jamie, Gautum 
Type: Update 
Category: CDS 
Subject: GPS receiver apparently set to correct mode as "UTC" 

The setting when we found it was "GPS", which seems logical enough.  However, when we switched it to "UTC" the time as shown on the front panel was correct, now with "UTC" vertically to the right of the time, and fb1 was then showing the correct GPS time.

From Keith Thorne:

In the GPS receiver, you are trying to match the IRIG-B output format that is created by the aLIGO IRIG-B Fanout.  Since we have to prep the aLIGO IRIG-B Fanout every time there is a leap second coming, I would suspect that we are sending UTC to the IRIG-B receivers.  Thus, the GPS receiver needs to be set to that mode.

Soooo, "UTC" is the correct mode for the GPS receiver.

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