[time-nuts] HP Z3801A Question

[Björn Gabrielsson]

On Thu, 2008-11-13 at 05:44 -0500, ernieperes at aol.com wrote:
> Hello,
> 
> I am running the HP Z3801A after a long time again, more then 150hrs 
> from the new ON status but I have never seen
> on the " TI to GPS " small window better figure then 1,5E-9. the 
> avarage is 1,3E-8 and seldom goes to 10E-9.
> And running parallel the FURY board with a TEMEX OCXO and displays 
> +1,6E-10 is the average very often 10E-11 and sometimes for a relative 
> short time / 4-5 min / 1,4E-12.

Are you comparing apples with apples?  some nanoseconds error in _phase_
(time) seem reasonable (for the HP) . A _frequency_ error in the range
of 1E-10 to 1E-12 is also reasonable (for the FURY).

But then I have neither of the units you compare, so I could have
misunderstood your issue.

--

   Björn