I think you are talking about the G3RUH/N1JEZ design. I have built three of them and they work very well.
73 es HNY, Dick, W1KSZ -----Original Message----- >From: Mark Spencer <[email protected]> >Sent: Dec 29, 2011 9:24 PM >To: Discussion of precise time and frequency measurement <[email protected]> >Subject: Re: [time-nuts] Thunderbolt? (re simple gpsdo.) > >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 <[email protected]> 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 -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > >_______________________________________________ >time-nuts mailing list -- [email protected] >To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
