Jerry only the am data shows up on a pin. No carrier. Thats why the tuning fork 60 Khz xtal to make a fake stable carrier. Regards Paul WB8TSL
On Mon, Jun 17, 2013 at 5:54 PM, <[email protected]> wrote: > I can never figure out how to post here... > > This may not work. From what I remember, the "Atomic' wall clocks and > watches only listen for WWVB a couple of times a day to conserve battery > life - usually at night when propagation would be best. I don't know if the > 60kHz signal is even available on a pin... > > Jerry S. > > > > Burt I. Weiner biwa at att.net > Mon Jun 17 13:56:17 EDT 2013 > Previous message: [time-nuts] raspberry pi, adafruit gps & ntp > Next message: [time-nuts] WWVB remodulator for the Spectracom 8170... > Messages sorted by: [ date ] [ thread ] > [ subject ] [ author ] > > > Chris, > > I think Paul really came up with an elegant answer. As you well > know, the problem with the new format and phase locked receivers is > that WWVB's phase is now being shifted for the new encoding > scheme. It's this phase shifting that's messing up the phase locked > receivers like the Spectracom 8170. Part of Paul's circuit generates > a new 60 kHz signal that's not phase shifted. The receiver portion > of his circuit decodes the dips that WWVB still transmits, and > outputs the data which is used to turn on and off a "switch" that > drops the new 60 kHz signal by approximately 14 dB in sync with the > WWVB dips. I'm going to build this circuit, but I'm planning on > using the receive module out of one of the many "Atomic Clocks" that > I have around. I guess you could ask, Why don't I just put the > Atomic clock on the wall in my shoppe and forget about the 8170? An > honest answer to that is, that's no fun. > > In a sense you could say that Paul's circuit does get the WWVB signal > to the receiver - it's just a new phase stable version of the signal > signal. This way I don't have to mess with the insides of the 8170. > > Burt, K6OQK > > _______________________________________________ > 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.
