[time-nuts] GPSDO for my rubber duckie

Chris Albertson albertson.chris at gmail.com
Tue Aug 2 01:38:38 UTC 2011

On Mon, Aug 1, 2011 at 6:18 PM, Michael Sokolov
<msokolov at ivan.harhan.org> wrote:

> At the present moment I can satisfy my requirement simply by looking at
> a WWVB-synced wristwatch: WWVB transmits UTC, and....

OK this defines your require accuracy very well.  ideally are required
to be without 1/2 second per day of the WWVB time.  Actually few of
them are that good.  There s a document on the WWV web site that
explains it.     But for your purposes then 1/10 of a second is "good

I think you can do just fine without GPS and  GPSDXO oscillators and
the like.  NTP over the Internet is an order of magnitude better then
you need.    Even if the Internet service is disconnected now and

 Your only remaining task is to write a function that transforms UTC
time to your own desired time.  Run that inside a loop and you are
done.    Zero total cost (assuming the internet connection is already
paid for)

Chris Albertson
Redondo Beach, California

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