[time-nuts] How good is your ADEV at 10E7 seconds? :)
attila at kinali.ch
Sat Nov 18 06:16:25 EST 2017
On Fri, 17 Nov 2017 17:54:51 -0800
Hal Murray <hmurray at megapathdsl.net> wrote:
> LIGO only works for roughly the audio spectrum. At the low and high ends,
> the noise goes up. Lots of people are working on how to build gear that will
> work at other wavelengths.
I was wondering about those limits, when i saw the plots.
Though, is it really the time/frequency source that defines
the detection limit?
> One proposal is to monitor pulsars. There might be stuff leftover from the
> big bang with a period of a year or so. If you can get good timing from a
> pulsar, you might be able to see it. I suspect that will take "good" timing
> to a scale that would astonish most time-nuts.
I think going with a 2-4 5071s and a Cs or Rb fountain to keep them
on frequency would be the easier thing to do. For additional short
term performance, throw in an active H-maser.
You know, the very powerful and the very stupid have one thing in common.
They don't alters their views to fit the facts, they alter the facts to
fit the views, which can be uncomfortable if you happen to be one of the
facts that needs altering. -- The Doctor
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