[time-nuts] New WWVB modulation format receivers (NOT)

Chris Albertson albertson.chris at gmail.com
Fri Feb 21 11:46:42 EST 2014


Bob,

If you are looking for an accurate, easy to use timing signal then GPS
is the one you want.   WWV and WWVB are what I call "legacy" signals
and while they might be accurate when broadcast there is propagation
delay and unknown atmospheric and ionospheric conditions.

But the question is "How accurate do you need?"  If a few tens of
milliseconds is good enough then running NTP over the internet will
work and if you already have an internet connection it's free.  If you
need a few nanoseconds then GPS is what you want.

Using your beat with WWV as a benchmark.  You were getting about one
part in a million accuracy.  It is VERY easy to do 10,000 times better
than that with GPS.

On Thu, Feb 20, 2014 at 8:19 PM, Bob Albert <bob91343 at yahoo.com> wrote:

>
> I would love to discipline my counter and signal generator time bases to match NIST.  Is this possible, and what would I need to do?
>
> I am sure this subject has been covered but I don't know how to find it.

-- 

Chris Albertson
Redondo Beach, California



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