> From what others on the list have said before, WWVB offers performance > that's at least a couple orders of magnitude worse than GPS, even if you > correct for all of the expected diurnal variations in LF propagation. Given > that a fairly pedestrian GPS module offers a nominal PPS accuracy of ~10ns > for $25...
Yes. But it would be fun to measure the diurnal variations. I thought WWVB was actually good at that. It's ground wave rather than bouncing off the ionosphere. But I'd like to measure both WWVB and WWV. Has anybody built a WWV(B)DSO? You would need a stable oscillator so you could average over days or weeks rather than hours. I'm thinking of a surplus rubidium. Maybe a manual screwdriver adjustment would be good enough and a PIC/AVR to make a PPS and fake GPRMC. -- These are my opinions. I hate spam. _______________________________________________ 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.
