[time-nuts] Z3801A going into Holdover

[paul swed]

Dan,
I think that sounds like the rcvr going. Search the time-nuts archives.
That may help you. If thats the case there were also comments on alternate
receivers though all of those are old and hard to come by.
I also have a 3801 but do not run it all the time. Another issue is that
the oven controller can overheat and makes quite a mess.
Good luck.
Regards
Paul
WB8TSL

On Thu, Jun 20, 2019 at 2:11 PM Dan Rae via time-nuts <
time-nuts at lists.febo.com> wrote:

> I have an elderly 3801A with some 182,000 hours on the clock, which if
> my arithmetic is correct means over twenty years of operation.  Since it
> has a well aged and remarkably stable OCXO I would like to keep it going
> if possible.  Recently it has been going into Holdover and staying there
> for no reason that I can see, it is fed from the same antenna / splitter
> amp combination with a good sky view as eight other GPSDOs here.  LH
> reports as good a signal strength on it as any of the others.  A Cold
> Reset gets it going again.
>
> Does anyone know if a more modern receiver can be fitted in place of the
> existing VP6?  Is it likely to be a Rx problem anyway?
>
> I'm running LH at the moment and will try to capture a screen when it
> next goes into Holdover to see if that gives me any clues.
>
> Thanks for any advice!
>
> Dan
>
>
>
>
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