On 2012-08-01, Chris Albertson <albertson.ch...@gmail.com> wrote: > On Tue, Jul 31, 2012 at 7:46 PM, Kennedy, Paul <p.kenn...@fugro.com.au>wrote: > >> Exactly so. you can purchase a GPS receiver for well under $100 connect >> it to a serial port + pps on any of the pc's and have microsecond >> accuracy in a few hours. This 'master' can then serve time to all other >> PC's. The systems will then behave for years of unattended use. It is >> a far more cost effective solution. >> > > The OP said he can go into another room and connect to the Internet can > sync a computer. It seems to me that there might be some rule that > prevents wires going into the room he works in, else why not simply run an > Ethernet cable. Many places do have such rules. He might work in a place > where they process classified information. In that case they might not > allow an antenna cable or any kind of wire to penetrate the room boundaries. > > If I have guessed correctly then what he needs is an atomic clock. Buy a > few of those $40 Rubidium units that are on eBay
Atomic clocks need to be synchronized to UTC, and they do eventually drift as well. > > >> regards >> pk >> >> >> -- > > Chris Albertson > Redondo Beach, California _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
