Hi, I had the same issue but Keysight could not help me a lot on this one. The only thing I got was a half-finished application note (see attachment). Therefore I created a solution using noise sources with a flat response below 10MHz and a special preamp without 1/f noise. Details can be found here:
Noise below 10MHz – Electronic Projects for Fun
This solution can also be used in the CXA Noise Figure Measurement Software. The only thing that would be nice is an automatable data transfer from an external preamp to the CXA, just the same way the U7227 does it.
Any ideas on this one ?
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