Good thought, Bob. AD9548 $27, eval board a whopping $250, get a thunderbolt :-). The eval board has a lot of SMA's on it... Don L Bob Camp > Hi > > If all you want is a "something" locked to a GPS: > > Take the pps from the GPS and hook it to an AD9548. You probably will > need a 50 cent CPU to set up the registers. No muss, no fuss, nothing > to invent or design. > > Weather it does what you need to do is an entirely different question. > Without a defined objective / need / performance goal this could go on > for a couple hundred yearsÂ….. > > Bob > > On Dec 6, 2012, at 7:43 PM, Chris Albertson <albertson.ch...@gmail.com> > wrote: > >> What if the OCXO had a sine wave output and then you used the PPS >> leading >> edge to gate the sine wave to a sample and hold. then the sample is >> measured by the Arduino's ADC? I think(?) you get a 10-bit ADC or is >> it >> 8-bits. The problem is the required speed of the sample and hold, >> maybe >> not easy to build >> -- >> >> Chris Albertson >> Redondo Beach, California >> _______________________________________________ >> 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. > >
-- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." De Erroribus Medicorum, R. Bacon, 13th century. "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com _______________________________________________ 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.