That is quite interesting. For two years I lived in an extremely remote, sparsely populated area in Northern BC, Canada, and there weren't any accessible cell towers within 75KM from me. That is, there was NO cell service anywhere until I drove for nearly a full hour.GPS triangulates your position with terrestrial based cell phone towers.
I had satellite-based Internet service which worked, and all of my GPS units worked just fine (in both of my vehicles, neither of which was built-in, and also my handheld and development electronic units). Since I have literally built my own GPS devices (Arduino-based) and I KNOW for FACT that I did not build in any cellular hardware whatsoever.
Care to explain?
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