The large amplitude swings happen on a very short time scale too. Certainly <1 second at times.
-John ============ > Totally agree with you John as I learned. I knew it was a variable but I > have seen nights that were crazy and do fit your 40 db. I redesigned the > AGC to account for that in the fr front end actually. > Regards > Paul > > > On Thu, Feb 20, 2014 at 4:34 PM, J. Forster <j...@quikus.com> wrote: > >> At least on the Atlantic coast, the WWVB signal levels jump all over the >> place, certainly 40 dB and maybe more. If a receiver cannot deal w/ >> that >> w/o losing lock, it's nearly useless. >> >> OTOH, LORAN was always a whopping signal. >> >> -John >> >> ================ >> >> >> >> > Chuck thats easy. Because I could make it work. :-) >> > That said there was a post on time-nuts about LORAN C receiver in >> > software. >> > I responded and have had the great pleasure of communicating with >> Matthias >> > over the last two weeks. I have learned a lot already and he in return >> has >> > a tested LORAN C receiver. >> > So with some luck just maybe I can become smart enough to do a better >> > design in software on a $15 micro. You still need the RF frontend >> section >> > that I released quite a while ago to time-nuts. >> > Regards >> > Paul >> > WB8TSL >> > >> > >> > >> > On Thu, Feb 20, 2014 at 4:02 PM, Chuck Harris <cfhar...@erols.com> >> wrote: >> > >> >> At 60KHz, it shouldn't be out of range of most >> >> general purpose CPU's, and even the most pathetic DSP. >> >> >> >> Why bother with a hardware solution when software can >> >> do it more easily? >> >> >> >> -Chuck Harris >> >> >> >> >> >> Florian Teply wrote: >> >> >> >>> Well, if someone comes up with a circuit, I could check how much >> chip >> >>> area that would consume in a 250nm SiGe BiCMOS... Shouldn't be out >> of >> >>> range for a serious time nut ;-) >> >>> >> >>> Florian >> >>> _______________________________________________ >> >>> 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. >> > _______________________________________________ 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.