How stable do our microwave LOs need to be?

We can just about meet the short-term requirements for SSB/CW with a well designed crystal oscillator at room temperature up to 76GHz, but for digital operation 10GHz represents the limit with current LOs.

We can just about meet the short-term requirements for SSB/CW with a well designed crystal oscillator at room temperature up to 76GHz, but for digital operation 10GHz represents the limit with current LOs.