[time-nuts] nuts about position

Bob kb8tq kb8tq at n1k.org
Tue Jun 5 14:10:53 EDT 2018


Hmmm …… that’s a very big difference between the RINEX and the “precision survey”. 

How do each compare to other receivers on the same antenna ( and super duper stable mount) ?
Even with a tripod on the grass, meter level variations likely are not the tripod’s fault. :)


> On Jun 5, 2018, at 1:39 PM, Mark Sims <holrum at hotmail.com> wrote:
> I did Lady Heather's 48-hour precision survey on an NVS-08 receiver and collected RINEX data at the same time.  The NVS was tracking GPS and SBAS satellites.
> The RINEX result had lat/lon/alt error estimates of .175/.153/.396 meters.
> The difference between Heather's precision survey results and the RINEX position were:
> lat/lon/alt:  -.638m/1.190m/1.526m
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