I doubt that very much. GPS time integrity is a big deal in many very important applications -- not the least of which is GPS itself -- and is treated as such.
Yes, an individual fiber distribution system can be much more accurate than GNSS time, but availability is what actually matters. Five nines at USNO would get somebody fired.
I wonder why we bothered building GPS signal waveguides into the bottom of a mine then. Clearly we should have consulted the experts of hacker news first.
I'm not even sure why you're trying to argue this. It's well established that Time over Fiber is 1-2 orders of magnitude more accurate and precise than GNSS time. Fiber time is also immune to many of the numerous sources of interference GNSS systems encounter, which anyone who's done serious timekeeping will be well acquainted with.
No, they don’t. GPS is orders of magnitude less reliable than the most up to date metric time synchronization over fixed topology fiber links.
I doubt that very much. GPS time integrity is a big deal in many very important applications -- not the least of which is GPS itself -- and is treated as such.
Yes, an individual fiber distribution system can be much more accurate than GNSS time, but availability is what actually matters. Five nines at USNO would get somebody fired.
I wonder why we bothered building GPS signal waveguides into the bottom of a mine then. Clearly we should have consulted the experts of hacker news first.
Losing NTP for a day is going to affect fuck-all.
I'm not even sure why you're trying to argue this. It's well established that Time over Fiber is 1-2 orders of magnitude more accurate and precise than GNSS time. Fiber time is also immune to many of the numerous sources of interference GNSS systems encounter, which anyone who's done serious timekeeping will be well acquainted with.
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