Hi I’m sure you are right about the response time. Right now the variation is running almost 3 ms at one sigma on a ping so there is a lot to do simply to get the accuracy anywhere near 1 us.
Bob > On Jan 13, 2017, at 2:35 PM, Chris Caudle <[email protected]> wrote: > > On Fri, January 13, 2017 11:40 am, Bob Camp wrote: >> The ping response is anywhere from 2 ms out to 400 ms. Most of >> the time it's in the 3 to 9 ms range. Simply taking that >> down to < 1 us would be a really big deal. > > I doubt that the response time will get that low, rather the time sync > will be moved lower in the hardware stack so that the variation stays > below 1us so it can be compensated as a systematic offset. Basically a > Wi-Fi version of the hardware time stamping that a lot of NIC's do now for > PTP support. Just a guess at this point. > > -- > Chris Caudle > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
