PSA Phase Noise Personality Option 226 Log Plot Measurement
The log plot measurement approximates a logarithmic frequency sweep
with a set of linear sweeps pieced together to give a display of dBc/Hz
versus logarithmic frequency offset. Trace 1, which is the yellow trace,
displays the point-by-point data as measured. Trace 2, the cyan blue
trace, displays a smoothed version of trace 1. The amount of smoothing
is determined by the current setting of the smoothing parameter. With
the default settings, marker 1 is set to a frequency offset of 10 kHz, and
the phase noise at that frequency is displayed numerically.