On 12/7/17 1:29 PM, Bill Hawkins wrote:
So yes, this could be interesting for a hobbyist, but it won't add anything to Science. A MASER is overkill. Heck, so are Rubidium and Caesium. A naked crystal will be rock solid compared to received WWV. OTOH, NTP has marvelous mathematical tricks to reduce Internet propagation delay. A scheme to reduce varying atmospheric delay would be useful, if there weren't much better ways to get a standard frequency.
What you are talking about is "better ionosphere modeling", which is something that a lot of people have spent a lot of time and effort on, without a lot of success. That said, there are some real time ionograms out there that are fascinating to watch. It doesn't take a very sophisticated receiver to receive the signals from a variety of ionosonde transmitters.
Juha Vierinen has a variety of interesting software: http://www.sgo.fi/~j/gnu_chirp_sounder/ Juha also has done stuff with measuring the frequency of beacon satellites http://www.sgo.fi/~j/jitter/web/ _______________________________________________ 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.
