[time-nuts] GPS for Nixie Clock

Chris Albertson albertson.chris at gmail.com
Fri Jul 15 00:45:02 EDT 2016

On Thu, Jul 14, 2016 at 1:34 AM, Hal Murray <hmurray at megapathdsl.net> wrote:

> If you are building a PLL, it's a lot easier to filter a 10KHz signal than a
> 1 Hz signal.

You are correct.  But this guy is building a nixie tube clock.  The
clock should increment the seconds at the tick of the UTC second.
There really is no way to do this without using the PPS.  The serial
data is not aligned with the UTC "tick"
GPS receivers work just like the old telephone time service "At the
tone the time will be..." and then comes the leading edge of the 1PPS.

If he were building a frequency standard then, yes the 10KHz signal
would be the best one to use.


Chris Albertson
Redondo Beach, California

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