[time-nuts] PRS10 Information and help needed

[Arnold Tibus]

Hello Michael and Tom, thanks for the quick reaction!

Of course I did already think that the rubidium cell doesn't work any 
more, but then I was astonished after more than 1 hour running how 
precise the output frequency is and I could not see a drift beyond the 
natural noise/ fluctuations which I can see as well with Tr. 
Thundelbolt. I did not yet look deeper e.g. observing the longtime 
behaviour nor did I open the box (yet), anyway I don't know much about 
the electronic internals.
I have running the RbMon and looked to the data list which I have 
annexed. It doesn't explain much for me therefore I am asking for help 
and support to find possible solutions, there are so much excellent 
experts out here.
I am worried that in fact the Rb capsule went over the Jordan ... 
perhaps it can be revitalized but I have no experience with it.
I doupt a bit the lamp heater control value etc., ad5 to ad9.
What is the range ... ? How shall one understand these and other values?
But finally, how can one improve the situation?

I am open for all good hints, instructions and ideas! (I am sure that 
there are other timenuts also interested ;-)  )

many thanks in advance

Arnold

Am 28.02.2018 um 21:02 schrieb Michael Wouters:
> Hello Arnold,
> 
> A frequency offset of a part in 10E-11 still sounds healthy to me. I wonder
> whether there is some kind of electronic problem?
> I have run 40 or so PRs10s and the lamp is the usual bit that dies.
> If you hook up a computer to the RS232 port, there are lots of diagnostics
> available.
> 
> Cheers
> Michael
> 
> On Thu, 1 Mar 2018 at 5:47 am, Arnold Tibus <arnold.tibus at gmx.de> wrote:
> 
>> Hello fellow timenuts,
>>
>> for my old PRS10 I need some information and help with technical
>> informations.
>> I have this item bought quite some years ago and I have manufactured an
>> interface cable with the special connector last year. Did work fine.
>> Taken out of storage I do get anymore the lock and PPS signal out.
>> The 10 MHz output does look very good, the unloaded sine voltage is 2.8
>> Vpp and the frequency is very precise and stable very close to the
>> trimble thunderbolt GPS-out signal at abt. 10E-11.
>> In the annex you can see the data output with more delailed info.
>> Can somebody tell me more, is the life at the end and what and how can
>> be done to revitalize this nice time machine? How much time more is
>> expectable?
>>
>> kind regards,
>>
>> Arnold
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