Pulsars use for high accuracy timing was discarded in about the 1960s-1970s. There are sudden pulsar rate changes, related to starquakes as I remember. Counselman et al did the expeeriment.
Also, there are very few microwave photons per pulse. It takes a lot of correlation to get anything, even with as big a dish as Aricebo. -John ============ > If I recall correctly, > > In one of my trips to the NRAO in Greenbank, WV they were, at one time, > using a > dedicated 60ft dish to track a pulsar to compare it against their local > H-Maser. > (It was interesting to see the Maser as it looked like a "homebrew" > version. I > saw no manufacturer's name on it.) > > It would come down to what value of S/N do you want or need to make your > own > measurment. > > -Brian, WA1ZMS > > > > > ----- Original Message ---- > From: David McGaw <n1...@alum.dartmouth.org> > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Sent: Wed, March 28, 2012 3:16:03 PM > Subject: Re: [time-nuts] Pulsar Source? > > What would it take (how big a dish) to receive a pulsar directly, such > as the millisecond one in the Crab Nebula? DBTV, TVRO? > > David > > On 3/28/12 2:29 PM, Tom Knox wrote: >> If pulsars are natures best clocks, I wonder how practical it would be >> to use >>satellites to receive and rebroadcast a highly accurate timing signal >> based on >>their signals? >> >> Thomas Knox >> >> >> >> _______________________________________________ >> 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. > > > _______________________________________________ > 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.