[time-nuts] Time source for indoor standalone PC

Eric Williams wd6cmu at gmail.com
Fri May 17 16:52:11 EDT 2013

That's based on my experience, but I did go in and tweaked the offset
register in mine over the course of a month or so.  I think it has gotten
off 3-4 seconds in a year.

On Fri, May 17, 2013 at 1:33 PM, Tom Van Baak <tvb at leapsecond.com> wrote:

> > Even something as simple as a Chronodot will hold to a few seconds a
> year.
> Eric,
> Are you sure? My understanding is that the Chronodot is based on the
> DS3231. Quoting http://datasheets.maxim-ic.com/en/ds/DS3231.pdf we read:
>     The DS3231 is a serial RTC driven by a temperature compensated 32kHz
> crystal oscillator. The TCXO provides a stable and accurate reference
> clock, and maintains the RTC to within ±2 minutes per year accuracy from
> -40°C to +85°C.
> /tvb
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