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RBW and Phase Noise Relationship

Question asked by janjan on Apr 8, 2015
Hi,

On page 11 of MXA signal analyzer there is a graph titled "Nominal Phase Noise at Different Center Frequencies with RBW Selectivity Curves, Optimized Phase Noise, Versus Offset Frequency".

I also attached that graph to this post. My question is:

As a user of an MXA signal analyzer what should I understand from this graph? Would it be true to say that the phase noise beyond RBW is unimportant? For example, If RBW is set to 100 Hz, does the phase noise at 10 kHz offset has any impact on the dynamic range of the analyzer?  

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