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.