Hi
> On Jan 31, 2020, at 2:16 PM, Brian Lloyd <[email protected]> wrote: > > On Fri, Jan 31, 2020 at 12:17 PM Bob kb8tq <[email protected]> wrote: > >> Hi >> >> The better you regulate the 12V, the better the TBolt will function. >> The OCXO will be very unhappy outside a +/- 0.5V region. It really >> wants something well regulated (like at the couple of millivolts level). >> > > That is the info I was looking for. My T-bolt works very well but all three > supplies are regulated. So I have to come up with regulated +12V and -12V. The -12 can be just about anything. Moving it from -10 to -12 has virtually no effect at all on the output. You need to regulate the +5 and +12. Bob > > Depending on exactly what era OCXO your TBolt has in it and how well >> it is still functioning, ppb level changes for a few percent delta supply >> are >> not unexpected. >> > > My T-bolt does seem to be working well, at least when compared to the Rb > and my TCXO-based GPSDO. All three seem to be quite consistent. 10MHz from > the NTP server is not as stable as the other 3. The 1pps from the NTP > server wanders +/- 50ns from the 1pps from the T-bolt. All are running from > the same GPS antenna outdoors with a pretty much unobstructed view of the > sky. (I have some trees and the peak of my roof up to about 20 degrees > above the horizon to the S.) > > Thanks Bob. > > -- > > > > Brian Lloyd > 706 Flightline > Spring Branch, TX 78070 > [email protected] > +1.210.802-8FLY (1.210.802-8359) > _______________________________________________ > 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.
