[time-nuts] help reviving Trimble UCCM-LPS GPSDO

[F1CHF]

error in the Link ?
is it the good one ?
tks


https://www.eevblog
com/forum/projects/a-look-at-my-symmetricom-gpsdo-(ocxo-furuno-receiver)/msg3
78499/#msg3778499 
 
francois

 
 
-------Message original-------
 
De : Wilko Bulte
Date : 23/12/2021 20:50:36
A : Discussion of precise time and frequency measurement
Sujet : [time-nuts] Re: help reviving Trimble UCCM-LPS GPSDO
 
 
 
> On 23 Dec 2021, at 18:58, Attila Kinali <attila at kinali.ch> wrote:
>
> On Thu, 23 Dec 2021 12:14:48 -0500
> Bob kb8tq <kb8tq at n1k.org> wrote:
>
>> It’s a pretty good bet that the Vref is 5V
>
> A quick google lead me to this forum post:
> https://www.eevblog
com/forum/projects/a-look-at-my-symmetricom-gpsdo-(ocxo-furuno-receiver)/1325

>
> Looks like the Vref is supposed to be 2.5V
 
For the Symmetricom UCCM or for the Trimble?
 
These UCCM are form-fit-function compatible but that does not mean the
circuits are the same. Or the OcXO.
 
Samsung also produced UCCM, of which I have 2, both working fine. Again
different circuits, different GPS etc.
 
Wilko
>
>            Attila Kinali
> --
> The driving force behind research is the question: "Why?"
> There are things we don't understand and things we always
> wonder about. And that's why we do research.
>        -- Kobayashi Makoto
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