Hi And possibly if the bpsk does something useful, you can identify a carrier phase slip and correct for it….
Bob On Jul 5, 2012, at 7:19 PM, J. Forster wrote: > If propagation goes south, you loose track of the carrier phase, the basis > of the system. If your local standard is stable and close to right, that's > not a big deal. If not, you can easily go down the garden path. > > -John > > =============== > > >> Hi >> >> Propagation isn't going to change with modulation format, so that part >> will still be with us. I'm wondering if some fancy processing on the new >> code might have some advantages. It's not worth digging into until they >> have a final format though. >> >> Bob >> >> On Jul 5, 2012, at 6:19 PM, J. Forster wrote: >> >>> From what I've read, the mods are to improve the Time of Day, not the >>> Time >>> Interval accuracy. >>> >>> In my location (MA) WWVB was never as good as LORAN-C because of >>> propagation issues. >>> >>> -John >>> >>> =============== >>> >>> >>>> Hi >>>> >>>> The real question is weather the BPSK will help us get significantly >>>> better accuracy out of WWVB or not. If it does, time marches on. If not >>>> - >>>> total waste of effort. >>>> >>>> DSP based low frequency receivers are pretty easy to make. You still >>>> will >>>> need those antennas and preamps to make them work though. If I can get >>>> Loran-C type accuracy out of WWVB with the new modulation, I'll >>>> certainly >>>> build or buy a receiver. >>>> >>>> Bob >>> >>> >>> >>> _______________________________________________ >>> 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. >> >> > > > > _______________________________________________ > 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.
