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Document Part No. E5500-90024Ed. 1.0
Figure 7-32 Selecting Suppressions
There are four different curves available for the this graph (for more
information about loop suppression verification, refer to
"Advanced Software Features"):
a
"Measured" loop suppression curve - this is the result of the
loop suppression measurement performed by the E5500
system;
b
"Smoothed" measured suppression curve - this is a curve-fit
representation of the measured results, it is used to compare
with the "theoretical" loop suppression;
c
"Theoretical" suppression curve - this is the predicted loop
suppression based on the initial loop parameters
defined/selected for this particular measurement (kphi, kvco,
loop bandwidth, filters, gain, etc).
d
"Adjusted" theoretical suppression curve - this is the new
"adjusted" theoretical value of suppression for this
measurement - it is based on changing loop parameters (in
the theoretical response) to match the "smoothed" measured
curve as closely as possible;
When the measurement is complete, refer to
Your Measurement Results" for help in evaluating your measurement
results.
E5500 Phase Noise Measurement System Version A.02.00
Absolute Measurement Examples
RF Synthesizer using DCFM
Chapter
Chapter
15, "Evaluating
7
16,
7-47
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