Hi At least right now, it is the “king of the hill” in terms of low cost modules that will do L1 / L2.
If the target application is precision survey work, you do want (at least) dual band reception. All of the post processing outfits are looking for that sort of data. I do not know of any free sites that will post process “L1 only” data. Without post processing, you will not get mm level results. Indeed with any of these numbers you can wonder what the errors might really be. If the claim is 5 mm, could it really be 8 mm? sure it could. If I average L1 data for a few days and think I’m at 500 mm could I really be over 800 mm off? Yes, and I do have data on that. If you are after things like continental drift or wander of a post in the ground, you are after mm level numbers. Bob > On Nov 22, 2019, at 7:28 AM, Hal Murray <[email protected]> wrote: > >> The “cheap” approach these days is to use a uBlox ZED-F9P > > There are a zillion GPS modules available these days. Is there something > special about that one? How many others provide whatever is needed to make > RINEX files? > > -- > These are my opinions. I hate spam. > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
