[time-nuts] Z3801A gps week rollover

Hal Murray hmurray at megapathdsl.net
Mon Sep 5 13:55:54 EDT 2016


holrum at hotmail.com said:
>  I did a little math on the dates and it looks like the rollover happened in
> the last couple of days...

Thanks for the heads up.

Mine started on Aug 17th

/var/log/ntp/clockstats.20160817:57617 2.033 127.127.26.1 
T219970101000002300103
8  64 0

That's from ntpd's clockstats which only logs every 64 samples.

Is there a date code in the serial number (or anyplace else)?  I have 2 
units.  One has rolled over.  The other hasn't (yet).
  HEWLETT-PACKARD,Z3801A,3542A01377,3543-A
  HEWLETT-PACKARD,Z3801A,3542A04389,3543-A

--------

Years ago, I powered up a unit that been off for a long time.  It came up 
with the wrong date.  Feeding it the date before it got lock solved the 
problem.  (Or something like that.)  Has anybody tried that yet?

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