[time-nuts] One of my Thunderbolts is drifting

Bob kb8tq kb8tq at n1k.org
Tue Oct 2 17:24:10 EDT 2018


If one shows 38,000 ns error, it’s no longer locked. It may *think* it’s doing ok, but it most certainly 
is unlocked. What is the DAC voltage doing? ( in some cases the DAC takes a long time to get to 
a limit and trigger an error flag). 


> On Oct 2, 2018, at 3:08 PM, David Van Horn <david.vanhorn at backcountryaccess.com> wrote:
> After several weeks of seeing the two sine waves solidly locked, now one of my TBs is drifting.
> Both instances of LH show six sattelites green, and discipline mode normal.
> One shows RMS 2nS, the other 38,000+
> What's wrong here?
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