The thing about the AU military using this to replace a quartz frequency standard seems lacking in detail. They can get a matchbox sized rubidium standard for

The thing about the AU military using this to replace a quartz frequency standard seems lacking in detail. They can get a matchbox sized rubidium standard for a couple of K$ which has to be a fraction of the cost and headache of this cryogenic thing. Maybe the new thing is even better, but is it by enough to matter? Out of stock at Sparkfun, but this is the rubidium thing I'm referring to: https://www.sparkfun.com/products/14830 https://www.sparkfun.com/products/14830