[rescue] In Realtime: Saving 25, 000 Manuals ??? August 15, 2015

Lionel Peterson lionel4287 at gmail.com
Fri Aug 21 11:49:12 CDT 2015

I, and I assume others would be interested in having our own time source (for
me the issue purely for geek points)... I'm interested in anything that can be
cheaply cobbled together to accomplish that end.

In related news, there seems very little support for the actual NTP project -
been reading apocalyptic stories about it's demise these last few years...
Seems NTP isn't 'sexy enough' to garner any real support, though many projects
rely, either directly or indirectly on accurate time.


> On Aug 21, 2015, at 12:04 PM, Bob Darlington <rdarlington at gmail.com> wrote:
> Yes, we do have discussions on that but ultimately that's probably a
> project for the ntp oriented groups.
> I'm designing a cape for a beaglebone black around a Furuno gps timing
> receiver in order to replace a commercially available ($3000) NTP
> appliance.  So far I'm out about $100 including the beaglebone.  The gps
> receiver, brand new, is $35.  Ping me off list and I'll give you all the
> details you want.
> Here's some random stats for a 24 hour period that I bothered to graph:
> http://www.nerdhouse.org/ntp/
> time-nuts is much more interested in the science and art of characterizing
> performance of oscillators, precision time interval measurements,
> statistics, and the like.  Most of us care about what time it is
> (wristwatch time) but that's a minor interest.  It's all about squeaking
> out the best performance of cesium beams, rubidum clocks, and quartz
> oscillators for stability.
> -Bob

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