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Calculation of Integral Noise, RMS Noise and RMS Jitter

Question asked by bejstam on Feb 13, 2012
Using E5052A with FW A.02.51, I notice that the reported Integral Noise and its derived parameters (including e.g. RMS Jitter) can change depending on if "Spurious Power" or "Spurious Normalized" is selected, even for the same (not re-triggered) phase noise trace.

How can these parameters differ depending on the Spur setting?

If there are good reasons for this difference, which Spur setting should be considered being the most accurate for RMS Jitter measurements?