RE: Number of GPS satellie used to obtain a location

Charlie — Fri, 19 Nov 2021 11:33:17 GMT

Hi Flau,

I think the discussion about Why does GPS positioning require four satellites is out of the scope of nRF9160. You can find the theory behind it from other more professional communities on GPS.

Getting only longitude and latitude does not affect the speed to get a position fix. It is the process to search and choose satellites effect Time to first fix. The current solution is AGPS. You can find a comparison of different types of location services from this table. It is basically a trade-off between speed and accuracy.

Best regards,

Charlie