Also QZSS, but that’s just GPS not run by US (it uses GPS signalling, but it’s designed to look directly down when over a small arc of Japan (which covers Tokyo) so you can get more accurate GPS inside the ‘urban valley’
We get slightly better GPS in Australia (esp. Adelaide) due to it too, since the other end of the orbit is over AU.
ms_lane@lemmy.world 4 weeks ago
Also QZSS, but that’s just GPS not run by US (it uses GPS signalling, but it’s designed to look directly down when over a small arc of Japan (which covers Tokyo) so you can get more accurate GPS inside the ‘urban valley’
We get slightly better GPS in Australia (esp. Adelaide) due to it too, since the other end of the orbit is over AU.