One of the designs using the 10 kHz output from a Jupiter gps engine and a simple PLL to discipline an ocxo might be good starting point if suitable gps engines are still available. There won't be much to tweak but the performance could be quite good.
My first gpsdo was a manufactured version of this concept and it consistently beats my thunder bolt from an adev perspective and there is nothing to tweak (: Sent from my iPad On 2011-12-29, at 6:35 PM, Chris Albertson <albertson.ch...@gmail.com> wrote: >> The era of cheap Thunderbolts appears to be history. >> > > What is the simplest GPSDO you can build? There are many designs > around but when the T-Bolts came out I think people lost interesting > building. > > I think something very simple could work. If your local oscillator is > at all decent it will not loose or gain full cycle in one second. So > I think you only need to compare the phase of the oscillator and the > PPS. Would an analog controller work? I do software all day every > day at work so it would be fun to build an analog computer for a > change. > > > 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.
