Wayne, there was a superb 2015 QEX article by KD2BD on his WWVB disciplined frequency standard. Full article is online here: http://www.arrl.org/files/file/QEX_Next_Issue/2015/Nov-Dec_2015/Magliacane.pdf
As a frequency standard I have no major disagreement with the PTTI article. But the 100 microsecond number they give for absolute time transfer seems to be based entirely on propagation characteristics and ignores the difficulty I've always had in resolving the mushy edge of the timecode pulses. 100 microseconds implies a system bandwidth of 10kHz, which is pointless because the transmitter antenna bandwidth has to be quite narrow - hundreds of Hz if not less. Tim N3QE On Sat, Apr 6, 2019 at 8:00 PM Wayne Holder <wayne.hol...@gmail.com> wrote: > Perhaps this has been mention before, but I found the following document > while researching some details on WWVB and thought it might interest the > group: > > https://www.kevincroissant.com/WWVB/WWVB_PTTI_2018.pdf > > I know that Spectracom once made a WWVB Disciplined Oscillator in the form > of the Model 8164, but I figured that this approach probably was obsolete > in the era of GPS and network-based time. However, the author seems to have > produced some interesting results. Has anyone else built, or tried to > build a WWVB Disciplined Oscillator? > > Wayne > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
