On Fri, Jun 22, 2018 at 1:27 PM, Hal Murray <hmur...@megapathdsl.net> wrote:
> > bro...@pacific.net said: > > I'm experimenting with a WSPR beacon transmitter and part of how it works > > depends on pushing the start button at exactly 2 seconds past the > minute. > > What do you mean by "exactly"? > I think WSPR has a +/-2s window for the start of a transmission. It really isn't all that "exact" and certainly nothing in the way of time-nuts definition of accuracy. The most popular WSPR implementation runs on a PC and uses a sound-card to generate the baseband signal and then uses an SSB transceiver to upconvert to the desired output frequency. Even worst-case the standard NTP implementation on Windows is more than sufficient for synchronization. -- Brian Lloyd 706 Flightline Spring Branch, TX 78070 br...@lloyd.aero +1.210.802-8FLY (1.210.802-8359) _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to https://lists.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
