Hi
A few things about a source in terms of it's use in a radio:
1) What does it's phase noise plot look like?
2) Do you need to multiply it for the frequency to be useful?
3) Now what does the phase noise plot look like?
4) Does the output signal make sense or do you have to convert it to something else?
5) Does it have low enough spurious to be useful?
6) Can it be tuned on frequency / is this even needed ?
7) How much work is it to get it to a useful frequency?
![Cool 8)](https://www.eevblog.com/forum/Smileys/default/cool.gif)
Does it pull to much power?
9) Does it warm up fast enough?
10) Are things like shock / vibration / acceleration an issue?
11) What sort of aging performance is needed?
12) What is the temperature range?
13) What is the likely temperature change?
14) What is the required temperature stability / radio stability?
Lots of things to look at before you start putting things together. There are a *lot* of sites that will show you how to turn a bare crystal into an oscillator. First you need to work out what makes sense.
Bob