What's being transmitted? If it's a repetitive message would it be possible to inhibit transmission using an external time source, perhaps a PIC or even a Pi inhibiting the "PTT", leaving the windows box in control of what's transmitted or do the Windows boxes have to communicate with each other via some back channel?
On 4 Oct 2016 08:30, "Chris Albertson" <albertson.ch...@gmail.com> wrote: > On Mon, Oct 3, 2016 at 9:41 PM, Larry Hower <ho...@hower.net> wrote: > > > > > > > 1. We are using desktops and laptops in separate locations running XP or > > Win 10. > > > > Assuming you have decent GPS receivers with an un-obstructed view of the > sky with 1 pulse per second output and you have let the GPS run long enough > to track enough satellites then... The pulse typically has a standard > deviation on the order of some tens of nanoseconds. So that is not your > problem. It is software., well mostly. Also computers that manage power > like notebooks are not going to give good timing performance no matter what > you try. > > MS Windows is not the best choice for running NTP. You can do it. and > many people have gotten results better then 1 millisecond. But > If you are willing to give up the use of MS Windows. Then tens of > microseconds is not hard. > > Little $35 credit card sized computers (Raspberry Pi) running Linux and NTP > with a GPS input are easy to get an order of magnitude better than your > requirement. > > So are you stuck with windows. f so it can work with some rather complex > setup. If you can select another OS then you get out of the box > sub-millisecond performance with little effort > > > -- > > Chris Albertson > Redondo Beach, California > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.