On 11/10/2016 07:18 AM, Peter Reilley wrote:
I have a few of those "atomic" clocks that receive WWVB to set the time.
However since I live on the east coast they may only pick up the signal
once or twice per year.
Could I implement my own personal WWVB transmitter that would
be powerful enough to be picked up by the clocks in my house?
The signal at 60 KHz might be able to be produced directly by some
sound cards. With that and a ferrite rod antenna I might get
reliable time elsewhere in my house outside of my lab.
Has anyone tried this?
Pete.
To be honest, this is very impractical and backward-thinking. I would
suggest instead upgrading to the Internet-of-things paradigm, replacing
these time-of-day displays with full computers running NTP and connected
to your LAN (Android smartwatches; repurposed old smartphones, tablets,
laptops, etc.; and smartclocks [I'm certain that some Silicon Valley
``genius'' has already come out with such an ``invention'' and the
Chinese are churning out cheap knockoffs]), which will query your home
metrology lab's NTP server(s), and instead using WWVB as an additional
timing signal for diversifying your timing source portfolio (with a good
antenna, of course), if you haven't done so already (though such
products appear to be extremely sparse nowadays, for civilian-minded
users have superficially reasoned that GPS is all that is necessary).
-Ruslan
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