[time-nuts] WWVB Disciplined Oscillator

[paul swed]

Wayne good read on the paper.
All of the spectracoms and such were rendered useless by the new BPSK
modulation. Though now that 5 years or so have passed not so new. Unless
the modulation is accounted for they can't track the carrier. There are
external modifications and other approaches that have been suggested. I
have design and tested numbers of them with a final approach using the
cheat'n d-psk-r. Won't go into that as its been shared here on time-nuts
enough. A lot depends on your location and signal strength. Clearly taking
advantage of the new modulation for carrier prediction has advantage. But
the fact is even I am now spoiled by GPSDOs.
I also built a far simplere approach called a remodulator for simply
allowing the spectracoms to get time. They are nice displays. Not sure you
can get even those piece parts any longer.
Regards
Paul
WB8TSL

On Sat, Apr 6, 2019 at 8:00 PM Wayne Holder <wayne.holder at gmail.com> wrote:

> Perhaps this has been mention before, but I found the following document
> while researching some details on WWVB and thought it might interest the
> group:
>
>   https://www.kevincroissant.com/WWVB/WWVB_PTTI_2018.pdf
>
> I know that Spectracom once made a WWVB Disciplined Oscillator in the form
> of the Model 8164, but I figured that this approach probably was obsolete
> in the era of GPS and network-based time. However, the author seems to have
> produced some interesting results.  Has anyone else built, or tried to
> build a WWVB Disciplined Oscillator?
>
> Wayne
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe, go to
> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
> and follow the instructions there.
>