[time-nuts] How can one measure ADEV of a good oscillator?

[Azelio Boriani]

>Your maser ADEV is only as good as its output oscillator/pll.

Upto the disciplining algorithm time constant, then it will be better.

On Mon, Dec 1, 2014 at 9:07 AM, Mark Sims <holrum at hotmail.com> wrote:
> Just because it's a maser does not mean it has good ADEV.  Masers use the hydrogen physics package to discipline an external oscillator just like a GPSDO uses GPS.  So a maser can be considered to be a HDXO... hydrogen disciplined crystal oscillator.  Your maser ADEV is only as good as its output oscillator/pll.  Granted,  if somebody is going to design a zillion dollar maser,  they are probably going to use a decent output oscillator/pll.
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