Hi For *survey* I would leave SBAS turned on. I would also suggest that something like a 3 to 5 day run is needed. That’s way beyond what the firmware can analyze. You at least need something like LH to capture and analyze data. Since LH does not run on the uBlox, that sets you back to serial capture and playing with things like .cvs files.
Bob > On May 8, 2016, at 1:25 PM, Bob Stewart <b...@evoria.net> wrote: > > Hi Neil, > > Yes, disable all except GPS sats. Also, turn off SBAS, set your max and min > number of sats (defaults are probably what you want), and the satellite > elevation mask. The elevation mask defaults to 5, but can you really see > that low? > > There are different ideas about how long to run the survey. On the one hand, > these new receivers get a good position pretty quickly. On the other, if you > wait 24 hours, you get the benefit of having that many measurements figure > into the result. Don't forget that the antenna placement can make or break a > timing system. I've been struggling along with my antenna placed just under > the eave on a south facing window, but finally got one put in a clear > position on top of the house. It does make a difference. > > Bob > -------------------------------------------- > On Sun, 5/8/16, Neil Green <nc...@hotmail.co.uk> wrote: > > Subject: [time-nuts] How to achieve best results from U-Blox survey-in > To: "Discussion of precise time and frequency measurement" > <time-nuts@febo.com> > Date: Sunday, May 8, 2016, 11:18 AM > > I have a U-Blox LEA-M8F eval module > from CSG Shop and want to run a survey-in. Are there any > “best practices” for doing this, e.g. using just GPS and > disabling GLONASS et al? Any tips are much appreciated. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
