[time-nuts] "Piezo Little Wonder" OCXO

WB6BNQ wb6bnq at cox.net
Fri May 30 12:56:13 EDT 2008


Brooke,

That would imply that this 10.23 MHz ocxo could be used in place of a GPS receiver's
oscillator and some additional circuitry to form a LOOP.  Then divide by 1023 for a
reference frequency to another loop with a sine-wave oscillator as the house
standard.

I have seen the above suggested before on this forum.  However, I do not know what
receiver would fit the scenario.

Bill....WB6BNQ


Brooke Clarke wrote:

> Hi Rick:
>
> 10.23 MHz shows up in the ICD-200 spec on how the GPS signal is generated.
>
> I've got a GPS sig gen see:
> http://www.prc68.com/I/5001A.html
> http://www.prc68.com/I/5001Bot.html
> and it has an HP 10.23 MHz oscillator.
>
> Have Fun,
>
> Brooke Clarke
> http://www.prc68.com/P/Prod.html  Products I make and sell
> http://www.prc68.com/Alpha.shtml  All my web pages listed based on html name
> http://www.PRC68.com
> http://www.precisionclock.com
> http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Web Cam
>
> Richard (Rick) Karlquist wrote:
> > Early GPS receivers used a 10.23 MHz time base.
> > Probably related to 2^10-1.
> > Some GPS manufacturers approached HP about making
> > a 10811 on 10.23 MHz.  There is a circuit modification
> > for 10.23 MHz and some crystals were made (I
> > have some somewhere).  However, I don't believe
> > any 10.23 MHz 10811's were sold.  This unit was
> > probably intended to meet the need not filled by HP.
> >
> > Rick Karlquist N6RK
> >
> > Randy Leifer wrote:
> >> This is surplus item I found.
> >> Piezo Crystal Company
> >> "Piezo Little Wonder"
> >> model # 2910007-27
> >>
> >> Does anyone know the pin-outs (see photo/link)?
> >> What is a the freq 10.238 MHz used for ?
> >> There is a trim pot, but I doubt it will trim away
> >> 238k to get to 10MHz.
> >>
> >> http://i5.photobucket.com/albums/y177/Midiot/DSCN3364.jpg
> >> http://i5.photobucket.com/albums/y177/Midiot/DSCN3366.jpg
> >>
> >> THANKS !!
> >>
> >> =Randy=
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> time-nuts mailing list -- time-nuts at febo.com
> >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> >> and follow the instructions there.
> >>
> >>
> >
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at febo.com
> > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> > and follow the instructions there.
> >
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.




More information about the time-nuts mailing list