Hi I think you would do a lot better with a cheap GPS rather than fiddling with NTP for this level of timing. No real need for a GPSDO, just the raw pps and time of day straight out of the GPS. Probably no need for a timing grade GPS, just one with a PPS.
Bob On Nov 7, 2012, at 6:47 PM, David Kirkby <[email protected]> wrote: > On 7 November 2012 23:28, <[email protected]> wrote: >> We had a presentation at our radio club several months ago on digital HF >> modes, and part of the presentation was on JT65 and apparently it needs >> a precise synchronized time fix on both ends for an exchange to occur. >> I do not recollect all of the details that were presented, but they did >> say that the default windows time keeper is not accurate enough, and >> advocated installing a third party ntp client that updates (way too) >> frequently. >> >> -Brian > > I think it might be JT65 he is using. I know he said that if your time > was accurate to 1 ms, and someone elses 2 ms, you have a higher chance > of making the QSO. Hence there is a need for accurate timing. (I'm not > sure he said those exact figures of 1 and 2 ms, but the general point > was that it needed to be accuate, and increased accuracy gave a higher > chance of making the QSO). > > But the whole idea of getting time from an internet time server every > few seconds seemed odd to me. He is not using any local time server. > > I'll try to find out what mode he is using, and what software to > correct his time. > > Dave > > _______________________________________________ > 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.
