[time-nuts] new WWVB BPSK dev board

[paul swed]

Majdi good for you. You will have fun. OK precision thats a slippery slope.
The documentation will indicate the sequence time and length and as I
recall the chip produces a result every 90 seconds using the long phase.
There is a short phase after you have acquired that is something like 30
seconds. But I recall it was tricky aligning to the second. That was the
BPSK edge. Anyhow it does work.
I hear they ship some arduino code with it. That would be fun to look at. I
used whats was called a SXB at the time. Worked fine.
Regards
Paul

On Tue, Dec 4, 2018 at 11:26 AM Majdi S. Abbas <msa at latt.net> wrote:

> $69 CAD is roughly $50 USD.
>
> Expensive for what it is but easier to work with than gutting a working
> clock and no more expensive.
>
> I ordered one.  Curious to see what sort of precision we can get from an
> i2c interface.
>
> If nothing else I suppose I can toss a six digit i2c 7 segment module at
> it and roll my own WWVB desk clock.
>
> —msa
>
> > On Dec 4, 2018, at 07:50, paul swed <paulswedb at gmail.com> wrote:
> >
> > I assume thats exactly the case. I also thought it was pretty high.
> > The actual clocks are about $50 or less I believe. So the board seems a
> bit
> > off.
> > Regards
> > Paul
> > WB8TSL
> >
> >> On Tue, Dec 4, 2018 at 12:03 AM Eric Garner <garnere at gmail.com> wrote:
> >>
> >> This seems relatively expensive for a little wirebonded board of this
> type.
> >> It seems like the sort of thing that you would normally find on
> aliexpress
> >> or ebay for a few dollars.
> >>
> >> It it because the es100 is otherwise unobtanium?
> >>
> >> Eric
> >>
> >>> On Mon, Dec 3, 2018, 6:12 PM Tom Van Baak <tvb at leapsecond.com wrote:
> >>>
> >>> At long last, a complete WWVB 60 kHz BPSK dev board is available:
> >>>
> >>>
> >>>
> >>
> https://universal-solder.ca/product/everset-es100-cob-wwvb-60khz-bpsk-receiver-kit-with-2-antennas/
> >>>
> >>> Note it includes the antenna(s). Also has links to documentation.
> >>>
> >>> It would be very nice if a bunch of time nuts around the country played
> >>> with these and reported results.
> >>>
> >>> Prior to this, the only device that you could buy which used the
> enhanced
> >>> WWVB format was the La Crosse 404-1235UA-SS UltrAtomic clock. It was
> not
> >>> developer friendly, so a dev board with the Everset ES100 chip is good
> >> news.
> >>>
> >>> The maker / hacker / Arduino crowd may enjoy a fresh source of accurate
> >>> time; something independent of GPS or NTP. Some technical postings
> about
> >>> reception quality, acquisition speed, and timing precision would be
> most
> >>> welcome.
> >>>
> >>> /tvb
> >>>
> >>>
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