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Re: DTM sentence and Russian datums in US phones (yes, that's clickbait!
Re: DTM sentence and Russian datums in US phones (yes, that's clickbait!)
Thu, 05 Aug 2021 16:10:36 -0400
Gnus/5.13 (Gnus v5.13) Emacs/26.3 (berkeley-unix)
Greg Troxel <firstname.lastname@example.org> writes:
> Over at GPSTest (and Android program for telling you what your GNSS chip
> is doing), people report that some phones have strange elevations, and
> digging in there appear to be be two notable oddities:
Google actually commented on a bug and (per the GPSTest tracker):
> geoid models that are wrong to a degree even more surprising than
> u-blox's reporting of -33m when it should be -29m.
It seems the qualcomm chips have 10x10 degree geoid models due to "ROM
constraints". My guess is further that it's EGM96, but that's me
> a DTM statement that says positions are in PZ-90, the grame used for
In theory this will be fixed in the december update.
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- Re: DTM sentence and Russian datums in US phones (yes, that's clickbait!),
Greg Troxel <=