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U3047AM08
Controlling the Test Set
N-Port Calibration
It is recommended that you perform an ECal characterization to minimize the
connections required for multiple port calibration. The N4693A/B Option M0F
is recommended with cable (85133F) if you are calibrating directly on the
network analyzer and test set ports.
Characterize the ECal module with adapters that will not be used in the
measurement of the DUT. To characterize the ECal module select
Response > Cal > More > ECal > Characterize ECal Module
-OR-
(Response > Cal > Cal Sets & Cal Kits > Characterize ECals...)
.
Calibrate at the end of the test port RF cables and any adapters that are used
to connect the DUT. This removes the effect on the measurement of the DUT.
Failure to do this will create ripple and other measurement errors.
Figure 26
ECal Characterization and Cal Wizard
If measurement errors occur, ensure the newest version of firmware is
installed on the network analyzer. Measurement errors can be a result
of firmware algorithms. Consult with Keysight Service or firmware web
page for the latest Option 551 firmware revisions and history.
http://na.support.keysight.com/pna/firmware/
Keysight U3047AM08 User's and Service Guide
35