During regular night/day cycles I can just barely observe the night-day shift in WWV propagation from Colorado to my location near Washington DC, using the NTP WWV audio refclock. It amounts to a few hundred microseconds of shift. I last touched that code about 15 years ago.
Now that I have a 10MHz GPS OCXO (well, I've had that for about 15 years too, getting that was the reason I stopped dinking with the WWV audio refclock) I wonder if there's some simple hardware I could build that would let me do superior carrier-phase type measurements on WWV propagation. If I could see the night-day shift more clearly then I might see an ionospheric effect during the upcoming August 21 eclipse, which nicely traces a path from west to east not too far off the line between Ft Collins and my location. Tim N3QE On Sun, May 28, 2017 at 6:17 PM, iovane--- via time-nuts <time-nuts@febo.com > wrote: > On august 21 2017 a solar eclipse will sweep USA from coast to coast. A > lifetime opportunity to do coordinated experiments to check this or that. > One of the questions that doesn't have a final answer yet is whether or not > solar eclipses could affect the flow of time. They exist conflicting > reports: Negative: http://www.nature.com/nature/journal/v402/n6763/full/ > 402749a0.html Positive: http://home.t01.itscom.net/ > allais/blackprior/zhou/zhou-1.pdf http://home.t01.itscom.net/ > allais/blackprior/zhou/zhou-2.pdfPersonally I believe that the positive > results were due to spurious responses of the atomic clocks to something > else than gravity, or the clocks failed for some reason (e.g. jumping > crystals then steered), or lower quality clocks had been sold to China. > Anyway the recorded data do show an anomaly.As far as I know, no atomic > clock tests are planned anywhere for that circumstance, but sincerely I > don't believe this is the truth.Maybe the US time-nuts community, using its > plenty > of atomic clocks, could give the final answer doing tests during the > above mentioned eclipse.US time-nuts, what about the idea of doing > yourselves a large scale coordinated test? Or do you actually believe that > this question is already definitively closed?(Even discovering that atomic > clocks might respond to someting else than gravity would be of great > interest).Antonio I8IOV > _______________________________________________ > 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.