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 -- [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. > > _______________________________________________ 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.
