Totally locked up just fine its looking very good. What interesting is the chronverter actually puts out the correct julien date for the old truetimes. From this point its time to get a gps unit hooked up to the chronverter and then filtering and an amplifier to drive a loop stick antenna. Think that may radiate enough to cover the house. Lastly putting the whole think in a rack unit. To hack a DC 468 case or not. That is the question. Suspect the answer is that would look nice. Regards Paul
On Tue, Aug 28, 2018 at 4:57 PM, paul swed <[email protected]> wrote: > 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> >> 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 <[email protected]> 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 -- [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.
