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15
Evaluating Your Measurement Results
Gathering More Data
Gathering More Data
Repeating the
Measurement
Doing More
Research
15-6
E5500 Phase Noise Measurement System Version A.02.00
Making phase noise measurements is often an iterative process. The
information derived from the first measurement will sometimes
indicate that changes to the measurement setup are necessary for
measuring a particular device. When you make changes to the
measurement setup (such as trying a different signal source,
shortening cables, or any other action recommended in
Solving"
on page 15-13), repeating the measurement after each
change allows you to check the effect that the change has had on the
total noise graph.
To repeat a measurement, on the Measurement menu, click Repeat
Measurement. See
Figure
Figure 15-4 Repeating a Measurement
If you are still uncertain about the validity of the measurement
results, it may be necessary to do further research to find other
validating data for your measurement. Additional information (such
as typical noise curves for devices similar to the unit-under-test or
data sheets for components used in the device) can often provide
insights into the expected performance of the unit-under-test.
15-4.
Document Part No. E5500-90024 Ed. 1.0
"Problem
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