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113 sats \ 1 reply \ @petertodd 8 Jul \ parent \ on: How to pull time data from gps satelites for ham radio digital modes (cheaply) DIY
GPS signals can barely make it through windows. They're pretty much useless in data centers and offices. That's why NTP wins.
That said, it's common for data centers to have a GPS receiver on the roof, and then distribute that time to the rest of the building via NTP.