On Wed, Aug 1, 2012 at 6:40 AM, Will Shackleford <[email protected]> wrote:
> > > The rubidium units I see on E-bay look like they were designed to go in a > CD player. Would I need > additional hardware to connect it to a computer and software to read it as > a clock source? > There are other Rb units on eBay. This one would be ideal. It has a 1 pulse per second output Item number: 300599635767 I have one of these. It also has a pps out but that feature is undocumented. This is the one many people paid $40 for. Seems demand as had an effect on the price Item number: 280905645392 There are many more like this. You only need the PPS to keep the system clock running at the correct rate. These Rb units have an typeical error at the 1E-11 level. Good enough for your use. > > > > > > > On 08/01/2012 01:24 AM, Chris Albertson wrote: > >> On Tue, Jul 31, 2012 at 7:46 PM, Kennedy, Paul<[email protected]>** >> 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 >> >> >> regards >>> pk >>> >>> >>> -- >>> >> Chris Albertson >> Redondo Beach, California >> ______________________________**_________________ >> questions mailing list >> [email protected] >> http://lists.ntp.org/listinfo/**questions<http://lists.ntp.org/listinfo/questions> >> > > ______________________________**_________________ > questions mailing list > [email protected] > http://lists.ntp.org/listinfo/**questions<http://lists.ntp.org/listinfo/questions> > -- Chris Albertson Redondo Beach, California _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
