[time-nuts] GPS position survey

Miguel Barbosa Gonçalves m at mbg.pt
Sun May 5 07:34:53 EDT 2013

On 5 May 2013 11:51, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:

> In message <8311230247672528820 at unknownmsgid>,
> =?ISO-8859-1?Q?Miguel_Barbosa_Go
> n=E7alves?= writes:
> >This receiver has the possibility of averaging it's position before
> >entering what Trimble calls the overdetermined clock state. The
> >default is to average the position with 2000 fixes.
> >
> >What do you believe is a good number of fixes for the survey in this case?
> It will be enough for error detection and it will stabilize your
> signal somewhat, but it is not even remotely close to giving you
> a precise position which will attenuate the 12h wiggles from the
> satellite orbits.

Hi Poul!

So you think a full day of position survey will be better?

The receiver will still output time while surveying so doing it for a long
time is not a problem.

Appreciate your input.


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