Hi I believe that the 1 pps is a direct divide off of the CSAC output. Thus no hanging bridges or other GPS-ish stuff. It’s a much more straightforward setup.
You should be able come up with something based on an ADF4001 or 4002 to clean the main output. Bob > On Jan 12, 2021, at 8:25 PM, Lux, Jim <[email protected]> wrote: > > On 1/12/21 3:55 PM, Bob kb8tq wrote: >> Hi >> >> Pretty high up on the list of CSAC projects probably should be locking it up >> to some sort of >> “clean up” oscillator or oscillator chain. > > > In that sense, it's not hugely different from a GPSDO that's ingesting a 1pps > tick. One would perhaps choose different loop time constants, and I don't > know if hanging bridges are a problem. I don't know how they generate the > 1pps internally, but the basic design is published. > > Jackson Labs sells them in a variety of forms. > >> >> Yes, there *is* always the CSAC wrist watch :) >> >> Bob >> >>> On Jan 12, 2021, at 3:58 PM, Nigel gm8pzr via time-nuts >>> <[email protected]> wrote: >>> >>> Thanks all for the feedback and information, it's been very helpful and >>> much appreciated. >>> I've been back tracking through a looooong accumulation of "rainy day" >>> projects, and this is obviously one of those that's been neglected for far >>> too long. >>> Something else that's fast becoming obvious though is that even here, >>> splashing about in this windy wet patch of the universe also known as the >>> west coast of Scotland, there just ain't ever gonna be enough rainy days to >>> go round:-) >>> >>> Nigel GM8PZR >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >> and follow the instructions there. >> > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
