[time-nuts] Using GPS to Fine Tune a Rubidium Frequency Standard.

[paul swed]

accurate


On Fri, Mar 21, 2014 at 3:51 PM, <EWKehren at aol.com> wrote:

> Paul
> Do not understand your question, what do you mean with tight?
> Bert Kehren
>
>
> In a message dated 3/21/2014 3:22:41 P.M. Eastern Daylight Time,
> paulswedb at gmail.com writes:
>
> Hal
> Actually now that you mention it was the DDS  chip.
> Bert
> I agree with your comments. How tight can it  be.
> Thanks
>
>
> On Fri, Mar 21, 2014 at 3:13 PM, Hal Murray  <hmurray at megapathdsl.net>
> wrote:
>
> >
> >  albertson.chris at gmail.com said:
> > > There seem to be two different  class of Rb.  One takes an EFC just
> like
> > the
> > > OCXO so  the controller looks just like a GPSDO and the other class of
> Rb
> > >  accepts serial commends to adjust the frequency.  These have an
> internal
> > > DAC.  But either way the logic is the  same.
> >
> > Is it a DAC or DDS chip?  Has anybody looked at the  spectrum?
> >
> >
> > --
> > These are my opinions.  I  hate spam.
> >
> >
> >
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