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by geerlingguy 236 days ago
Hmm... maybe I could build a 1pps GPSDO based on light flashes from nearby towers, then. No need for my own GPS antenna!
1 comments
mjevans 236 days ago
You'd probably have better timekeeping from a reasonably connected Pi with a common NTP daemon (take your pick, some are easier to configure / query), and a realtime-ish thread to emit your PPS signal on a GPIO or similar.

Probably more robust than line of sight, and able to pool with other NTP servers in your home-lab (and beyond).

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geerlingguy 236 days ago
True, but I'm not thinking of a practical method, just fun. I already have GPS derived time here, but that's been reliable and boring!
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