OK thats great a maybe pic chip answer. They do cure all ill's after all. Really scratching my head here. But I do think there is an answer as long as the phase reversal is accurately controlled and still referenced to the reference standard. A I say I need to read. Regards Paul
On Wed, Mar 14, 2012 at 9:14 PM, WB6BNQ <wb6...@cox.net> wrote: > Brooke, > > In speaking with John Lowe of NIST (Group Leader for Time & Frequency > service), he stated that the absolute time recovery of > their intended new modulation scheme is 10 milliseconds. Nothing stellar > there ! > > BUT you are right, all of us that have hp-117 type receivers are just out > of luck. John Lowe did say they are going to > produce a PIC (Microchip) project that will grab the data stream and > reconstruct the carrier signal so that can then be fed > back into a hp-117 type receiver so it can still be used. However, he did > say that is a dream at the moment as they have > not really started to work on it. He then said I could do it and they > would consider my efforts. While I had a number of > thoughts running though mind when he said that; I did hold my comments > back. > > I have to tell you, John Lowe sounded like he was drinking the Kool-Aid > because I told him I was quite negative to the whole > idea and he went into a nonstop mode of telling me all the good things > that were going to come about with this modulation > scheme. The same kind of hype that occurred with the HDTV. By the way, > all those good things have nothing to do with > anything Time-nutty except for pissing us off, as it were. > > His enthusiasm was aimed totally at new products. Although he admitted it > leaves all the real Timenut type people, actually > using the system for its intended purpose, out in the cold, he really did > not seem to care. Pointing out that a failure > with the GPS system left WWVB as the only alternate did not seem to matter > either. > > OH Well, > > Bill....WB6BNQ > > > Brooke Clarke wrote: > > > Hi John: > > > > They are going to maintain the existing AM modulation format so all the > WWVB "Atomic Clocks" will still work. The phase > > modulation is added on top of that. > > > > Yes, I expect my HP 117 may no longer work, but I'd much rather have the > improved s/n and timing accuracy. > > > > Have Fun, > > > > Brooke Clarke > > http://www.PRC68.com > > http://www.end2partygovernment.com/Brooke4Congress.html > > > > J. Forster wrote: > > > All very nice, but if this change renders all existing receivers > useless. > > > How does that improve things? > > > > > > All it does is wipe out all the existing phase tracking infrastructure. > > > > > > The only benefit is to the government who can reuse the WWVB > transmitter > > > and frequency allocation. Everybody else will have to buy new stuff. > > > > > > Sounds a lot like HDTV fiasco. Making jobs (in China or Korea) by > making > > > scrap. > > > > > > YMMV, > > > > > > -John > > > > > > ============== > > > > > > > > >> Dear Time-Nuts, > > >> > > >> > > >>> I sure would like a WWVB BPSK receiver for the new modulation. (..) > > >>> > > >>> I'm sure in time there will be plenty of low cost ICs designed to > > >>> receive the > > > [SNIP} > > > > > > > > > _______________________________________________ > > > 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.
