[time-nuts] GPS position survey

Bob Camp lists at rtty.us
Sun May 5 08:09:00 EDT 2013


Something like 48 hours is a good idea *if* you have the time to do them.


On May 5, 2013, at 7:34 AM, Miguel Barbosa Gonçalves <m at mbg.pt> wrote:

> 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.
> Cheers,
> Miguel
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