[NLRS] 10GHz LO Query

[Jack Parker]

I would like a bit of input on the subject of a local oscillator for a 
10GHz transverter.

I am going to attempt to build one of W1GHZ's 10GHz transverters and 
will start with the LO chain. My system will use a 144MHz IF and I have 
Paul's LO board to generate the 1136MHz signal the transverter board 
requires. I realize the best route to take would be a high stability 
10MHz reference source or a GPS locking system but prefer to avoid that 
complexity initially. It appears the next option is an OCXO and therein 
lies my question.

What would folks in the group suggest as a place to acquire a 
sufficiently stable OCXO? The 144MHz IF would require a source at 
94.666667MHz to drive the LO multiplier board I have presently but that 
seems an odd frequency for readily available off the shelf components. I 
had considered the Q5 Signal digiLO but they told me even with the high 
stability option it would not be stable enough to support digital modes 
at 10GHz.

It may well be that digital modes at 3cm will mandate an externally 
referenced LO source. If that is the case then I will have to be 
satisfied with analog modes initially.

I look forward to hearing the group's thoughts on this.

Jack, K0JP/VE3RUA