From Shawn Bibb on Sat, 08 Jan 2000
In response to one of my discussions about NTP and time synchronization for disconnected (home) networks I commented on how I'd like to find a cheap GPS receiver with a serial interface. Those make good time sources for your home NTP server.
i have one of these and it works very well. ~$100. i recommend it.
It this one radio or GPS? It shouldn't matter, either should keep us to within on second which is high enough resolution for most of us.