Earlier quoted context omitted.
My memory says that US government GPS at one point intentionally introduced reduction in accuracy/resolution as well, but they stopped, which was part of what led to the commercial GPS revolution (along with cheaper tech of course). Let's see... Wikipedia seems to confirm: > During the 1990s, GPS quality was degraded by the United States government in a program called "Selective Availability"; this was discontinued o…
This is different but related. China has no ability to influence GPS accuracy within its borders. What they do is manipulate all of the authoritative maps available so that GPS coordinates won’t map cleanly to the digital waypoints in the map. The GPS locations are very precise, they are just off by as much as a quarter mile in varying directions depending on where in the county you are.
FYI: And even far outside of them too