Anritsu Site Master S330A, User Manual, Page: 49 / 85

After each selection, one of the messages
“Measur-
ing OPEN,” “Measuring SHORT,”
or
“Measuring
LOAD” appears while the measurement is in prog-
ress.
If, during a calibration, you wish to repeat a meas-
urement or change the order in which the Open,
Short, and Load are connected, press Up/Down Ar-
row key.
NOTES:
For best calibration results — compensation for all
measurement system uncertainties — ensure that the
Open/Short/Load is at the end of the test port or op-
tional extension cable; that is, at the same point that
you will connect the antenna or device to be tested.
For best results, use a phase stable Test Port Exten-
sion Cable (see Optional Accessories). If you use a
typical laboratory cable to extend the
Site Master
test
port to the device-under-test, cable bending subse-
quent to the Open/ Short/Load calibration will cause
uncompensated phase reflections inside the cable.
Thus, cables which are NOT phase stable may cause
measurement errors that are more pronounced as the
test frequency increases.
For optimum calibration, ANRITSU recommends using
precision calibration components.
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Chapter 2 Operation