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@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@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@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@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.