At 7:20, when you speak about short-term stability: The Morion datasheet shows Allan
deviation figures, while the CSIRO rubidium datasheet shows Allan
variance. According to the
Wikipedia article, ADEV
2 = AVAR, so the figures from the two datasheets are not directly comparable.
But then again, if we do the calculation, the Allan variance (at 1s) of the Morion OCXO would be <4*10
-24, which just doesn't sound right, compared to the Allan variance of the CSIRO RbXO (<2*10
-11). Can we assume that they screwed up the Morion datasheet and they actually meant to write Allan variance?
Would anyone knowledgeable in the field be willing to comment on this?