[time-nuts] Re: Best frequency to start for GHz synth ?

[John Moran, Scawby Design]

Since low phase noise seems to be a main requirement here, this paper by Jeremy Everard from York University may be of interest -

'Ultralow Phase Noise 10-MHz Crystal Oscillators'

Available here -

https://ieeexplore.ieee.org/document/8540461

It also shows construction of a double oven system for it.

I believe Jeremy was working on sapphire oscillators 20 years ago when I worked at York for a while.

John