madengr

269 ms·

1. 2431.▲
   by madengr 13y ago

   The phase noise (really short term stability) of a rubidium oscillator is rather poor compared to on ovenized quartz oscillator. So what I really want is a strontium disciplined OCXO.
2. 2432.▲
   by madengr 13y ago

   The 360 isn't arbitrary, rather boils down to 60 arc-minutes and 60 arc-seconds, which of course is 3600 arc-seconds in circle. Where the 60 comes from: http://mathforum.org/library/drmath/view/65468.htm
3. 2433.▲
   by madengr 13y ago

   Think of it as radiUS and radiAN, the AN being angle. Since there is PI angle in a radius, there has to be 2 PI in a diameter since d=2 r.