[time-nuts] 10MHz LTE-Lite - PPS accuracy?

Neil Schroeder gigneil at gmail.com
Wed Dec 10 17:07:02 EST 2014


I don't think so - should just work

Did you already have ntpd running when you attached?  And do you have the
full PPS module stack including ldisc?

It works on every platform I got. :-)

As to better than Internet time - I cannot get it closer than 2 or 3 ms. I
have MANY internet time sources whose offset is not close to that bad

On Wednesday, December 10, 2014, Paul <tic-toc at bodosom.net> wrote:

> On Wed, Dec 10, 2014 at 12:17 PM, <gigneil at gmail.com <javascript:;>>
> wrote:
>
> > Quite simply - if you either execute ldattach pps /dev/ttyUSBx, or are
> > running GPSD (recommended) it will bind the USB appropriately to a ppsapi
> > instance.
> >
>
> I can get a /dev/ppsN but ppstest says time-out.  I saw some hints that the
> USB DCD
>
> might depend on the chipset .  I don't like gpsd so I try to avoid it but I
> might try it.
>
> Thanks.
>
> > Do not do it.  You will not approve of the results.
> >
>
> I don't intend to use it in production.
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