[time-nuts] Fundamental limits on performance
hmurray at megapathdsl.net
Sun Sep 13 17:03:43 UTC 2009
bruce.griffiths at xtra.co.nz said:
> Adding a 210ft diameter antenna to the spacecraft just to detect a
> sufficient number of pulsars is probably not an option.
> Unless a multibeam phased array is used simultaneous observation of
> several pulsars isnt possible.
What sort of frequencies do people use to listen to pulsars?
Do I need 210 ft for collecting area or pointing accuracy? Would a big
phased array be useful and lighter?
Does anybody on Earth used phased arrays to listen to several pulsars
> Kolmolgorov turbulence in the interstellar medium can cause all but
> the singals from the most distant pulsars to fade randomly.
Ugh. Now I have to figure out what that means. It looks interesting, but my
head hurts already. Is there an analogy in the electrical world?
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