Keysight Technologies U4301 User Manual page 44

5 Tuning the Analyzer for a Specific DUT
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Select one of the following options from the Tuning Mode listbox. All the tuning modes listed below
performs an Analog tune.
• Standard Tune - This option performs an Analog Tune followed by a fine tune. In this option, the
number of iterations for a tuning test completion are more than the number of iterations in the
Quick Tune option. Standard Tune, therefore takes more time than Quick Tune.
• Quick Tune - Depending on your analysis needs, you may choose to spend less time on tuning
in order to start analysis of your system quicker. Quick Tune is useful in such situations. Like
Standard tune, this option also performs an Analog Tune followed by a fine tune. However, the
number of iterations for a tuning test are lesser making this option suitable for performing
tuning quickly.
• Fine Tune Previous Results - This option is meant for fine tuning a previously created .ptu file. If
the .ptu file that you created does not produce robust and clean tracing, then you can fine tune
it to get the desired results from tuning.
• Long Tune - This option is identical to the standard tune but takes more time in running the
tuning test iterations as compared to the standard tune. Long Tune, therefore, requires
considerably longer time to complete the tuning process than the standard tune but can
reduce the trace errors resulting from inadequate tuning. You should use this option only if you
are getting excessive errors in the captured traces even after a successful completion of
standard tune run with all lanes converged. This option is not recommended for use if all the
lanes are not converged.
Keysight U4301 PCIe Gen3 Analyzer User's Guide