[time-nuts] nuts about position

Bob kb8tq kb8tq at n1k.org
Sun Jun 3 09:37:49 EDT 2018


Hi

If you are doing a longer run into one of the data analysis services - it does not seem to matter much what the 
spacing on the readings is. One second data does not seem to produce any better result than 30 second data. 
I don’t think that the 3 second rate on the Trimble will have much impact on a 24 hour data set.

Bob

> On Jun 3, 2018, at 1:57 AM, Mark Sims <holrum at hotmail.com> wrote:
> 
> Well,  with a little prodding and help from Magnus,  I now have the Trimble devices outputting RINEX files.  They have pseudorange, doppler, and signal strength observations.  A 5 hour 1Hz run was sent to CSRS-PPP and the lat/lon/alt error ellipses were in the 250/250/700 mm range... that should improve with a longer run.
> 
> Firmware issues in the original Resolution-T limit those to a 3 second observation rate.
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