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I love playing with GPSTest on various phones to see what newer chipsets are doing. I'm more interested in altitude accuracy than position which seems to be a

by ck2 4y ago

I love playing with GPSTest on various phones to see what newer chipsets are doing. I'm more interested in altitude accuracy than position which seems to be a challenge for GPS It's odd to me that most devices support/trust GLONASS which shouldn't be trusted while not (yet?) supporting/trusting Beidou (like Garmin watches have no Beidou support) neat https://upload.wikimedia.org/wikipedia/commons/b/b4/Comparison_satellite_navigation_orbits.svg https://upload.wikimedia.org/wikipedia/commons/b/b4/Comparis... network comparison https://en.wikipedia.org/wiki/Satellite_navigation#Comparison_of_systems https://en.wikipedia.org/wiki/Satellite_navigation#Compariso... Is there a 3d realtime model online of the earth that shows where every satellite is? Would be an interesting project if doesn't exist yet.

mastax 4y ago
Yeah, phones seem to have really good GPS receivers, even when you turn off all the network assists. Even with their tiny antennas they're at least comparable and sometimes better than my expensive uBlox GPS with a large active antenna.
focusedone 4y ago
Hadn't heard of GPSTest before, thanks! Annnnd there goes another app into my 'toys for waiting in lines' folder.
toast0 4y ago
> It's odd to me that most devices support/trust GLONASS which shouldn't be trusted while not (yet?) supporting/trusting Beidou Russia requires GLONASS support, so a worldphone needs it. China requires a lot of things, so a worldphone isn't going to work anyway.