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14
Evaluating Your Measurement Results
Gathering More Data
Repeating the measurement
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
"Problem Solving"
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
e5505a_user_repeat_measurement
27 Jun 04 rev 3
Figure 263 Repeating a measurement
Doing more research
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 DUT or data sheets for components used in the device) can often
provide insights into the expected performance of the DUT.
328
on page 335), repeating the measurement after each change
Figure
263.
Agilent E5505A User's Guide
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