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

Mike Cook michael.cook at sfr.fr
Sun Jul 30 02:47:48 EDT 2017


Hi,
  I was running Tboltmon as the rollover occurred and did not see any phase shift. Old type Tbolt firmware 3.0
Maybe your phase offset was due to your Tbolt being in survey mode and its apparent position shifted . 

Mike


> Le 30 juil. 2017 à 02:16, Tom Van Baak <tvb at LeapSecond.com> a écrit :
> 
> 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
> <tbolt-20170729T165941.gif><tbolt-20170729T165942.gif><TBolt-rollover.gif>_______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.

"The power of accurate observation is commonly called cynicism by those who have not got it. »
George Bernard Shaw



More information about the time-nuts mailing list