I finished assembling the frequency generation unit for the upgrade. I tested it through to check that the power levels are as expected at the various connection (see attached png, showing in black the design power values, and in red the measured ones).
Because of some modifications made on the design along the construction, I have to recalculate the SNR along the lines.
I can now start to measure phase noise and distortion harmonics.
A document with a description of the design and the results of the characterization measurements will be available in the end.