[time-nuts] Trimble Thunderbolt no longer determines the correct date

Tom Van Baak tvb at LeapSecond.com
Sun Jul 30 00:16:08 UTC 2017


Caught it. Some Trimble Thunderbolt TBoltmon.exe screen shots attached:

GPS WN 1959 TOW 604799 (July 29, 2017 23:59:41) advanced to
GPS WN 936 TOW 0 (December 13, 1997) instead of
GPS WN 1960 TOW 0 (July 29, 2017 23:59:42).

1960 - 936 is 1024 weeks, as advertised for this version of the TBolt GPSDO. Note this happened at 23:59:42 UTC as expected (that's GPS midnight - 18 UTC leap seconds). I did not expect the reported 2.75 us 1PPS phase change and will look into that.

/tvb
-------------- next part --------------
A non-text attachment was scrubbed...
Name: tbolt-20170729T165941.gif
Type: image/gif
Size: 20735 bytes
Desc: not available
URL: <http://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20170729/4f926df2/attachment.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: tbolt-20170729T165942.gif
Type: image/gif
Size: 20763 bytes
Desc: not available
URL: <http://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20170729/4f926df2/attachment-0001.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: TBolt-rollover.gif
Type: image/gif
Size: 62186 bytes
Desc: not available
URL: <http://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20170729/4f926df2/attachment-0002.gif>


More information about the Time-nuts_lists.febo.com mailing list