3 ms·
The article says they are based on atomic clocks, but there is bound to be some variability from a radio signal traveling long distances.
by thinkloop 8y ago
The article says they are based on atomic clocks, but there is bound to be some variability from a radio signal traveling long distances.
- xiii1408 8y agoAll three radio stations (Washington, Maryland, and Colorado) used atomic clocks. Presumably they could handle the radio hand-off very precisely. ;) But actually--the precision of an atomic clock (nanoseconds) is orders of magnitude higher than lag due to radio wave travel (many microseconds). And even if you account for this, you probably only know your distance from the atomic clock to within 10 meters, which is tens of nanoseconds of uncertainty.