[time-nuts] "Piezo Little Wonder" OCXO
wb6bnq at cox.net
Fri May 30 12:56:13 EDT 2008
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
I have seen the above suggested before on this forum. However, I do not know what
receiver would fit the scenario.
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:
> 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/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=
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