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It's pretty cheap to embed a tiny GPS receiver and crappy chip antenna these days. Probably enough for time sync in many situations.
by jpm_sd 8y ago
It's pretty cheap to embed a tiny GPS receiver and crappy chip antenna these days. Probably enough for time sync in many situations.
- c22 8y agoIs it? The cheapest gps chips are still a couple bucks a pop (not counting the extra costs of more complex integration.) And from my experience these cheap gps and pcb antenna solutions are basically useless indoors. NTP is probably still the right solution for these devices, being essentially free to add to a device that already needs an internet connection. Care should just be taken to implement it correctly, obviously.
- reaperducer 8y agoAnd from my experience these cheap gps and pcb antenna solutions are basically useless indoors. This is true. I know a TV station that has a tiny satellite antenna bolted to the outside wall to run its internal NTP for all of its wired and wireless devices because GPS simply doesn't work inside the building. I'm not sure if that's a problem because of all the electronic equipment, or the construction of the building, or the fact that the building sits almost underneath a 500-foot-tall tower with several 10 to 20KW transmitting antennae on it.