Yup running it without any filtering at the moment. Just completed the modulator using a tri-state 74ls125. Works well. But now the real test, does the symetricom lock to the chroneverter? As I type this it just did. Running about -50 db. Now for the true time. Regards Paul
On Tue, Aug 28, 2018 at 4:25 PM, Bob kb8tq <kb...@n1k.org> wrote: > Hi > > The clock could care less if the harmonics are at -10 dbc or -100 ….. > > Bob > > > On Aug 28, 2018, at 2:54 PM, paul swed <paulsw...@gmail.com> wrote: > > > > Well the 9.6 MHZ/160 is working really well. The vectron VTO is .032 Hz > > high and when heated to 100 drops to .005 Hz. > > Carrier lights turn on ASAP on the spectracoms and truetimes. So time to > > add the modulator and some low pass filtering and then antennuate to > > something like -60 to -70 db for the good clocks. > > Then finally back to the chronverter and adding gps to it for the correct > > time. > > Regards > > Paul > > > > On Mon, Aug 27, 2018 at 11:00 PM, paul swed <paulsw...@gmail.com> wrote: > > > >> Ed > >> Thanks for the clue. Well on the way with the 9.6 MHz. But I think I may > >> also have something in the 15.360 range. > >> Darn soldered things to quickly. :-) > >> > >> On Mon, Aug 27, 2018 at 10:50 PM, ed breya <e...@telight.com> wrote: > >> > >>> I remember I have a bunch of 15.360 MHz TCXOs that were very common - I > >>> think they came from some big old cell phones I junked out long ago - > you > >>> know, the kind that were bolted into the car. This is still a standard > >>> frequency, and it would be nice for making 60 kHz by simply diving by > 256. > >>> A quickie search for modern ones shows this as an example: > >>> > >>> https://www.mouser.com/datasheet/2/3/AST3TQ-28-461101.pdf > >>> > >>> I believe this class of parts will easily do the job, and there are > >>> likely lesser, cheaper ones that would suffice. > >>> > >>> Ed > >>> > >>> > >>> _______________________________________________ > >>> time-nuts mailing list -- time-nuts@lists.febo.com > >>> To unsubscribe, go to http://lists.febo.com/mailman/ > >>> listinfo/time-nuts_lists.febo.com > >>> and follow the instructions there. > >>> > >> > >> > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
