[time-nuts] suggestions on getting 24 Mhz ?

Graham / KE9H ke9h.graham at gmail.com
Wed Apr 11 12:11:37 EDT 2018


Phase noise is (usually) more important than absolute frequency accuracy.

I suggest some kind of low phase noise master oscillator (OCXO) feeding a
DDS without an internal multiplier.

If internal multiplier in DDS, that, rather than the frequency reference
source will set the phase noise floor of the sampling.

--- Graham

==

On Wed, Apr 11, 2018 at 11:00 AM, Jerry Hancock <jerry at hanler.com> wrote:

> For and RSP?  I used an HP 3325 locked to my Cs beam and took the signal
> from the back.  I think I paid no more than $100 for the 3325a and one I
> got for free.
>
> Regards,
>
> Jerry
>
>
> > On Apr 11, 2018, at 4:49 AM, jsternmd at att.net wrote:
> >
> > Leo Bodnar GPSDO - adjustable Low-jitter GPS-locked precision frequency
> reference 400 Hz to 810 MHz .  He has a new one, single output for 99
> british pounds.
> >
> > Jerry NY2KW
> >
> > -----Original Message-----
> > From: time-nuts <time-nuts-bounces at febo.com> On Behalf Of Pete
> Lancashire
> > Sent: Wednesday, April 11, 2018 6:00 AM
> > To: Discussion of precise time and frequency measurement <
> time-nuts at febo.com>
> > Subject: [time-nuts] suggestions on getting 24 Mhz ?
> >
> > Needed for SDR project as external clock source.
> >
> > -pete
> > _______________________________________________
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