9
Calibration
Calibration is performed in CAT, NA, and VVM Modes.
A calibration is performed automatically when the
FieldFox is powered ON and when Preset. This Preset Cal
(also known as CalReady) sets the reference plane at the
RF OUT connector.
For highest accuracy, perform a QuickCal or O,S,L when
any of the following occur:
The temperature changes significantly.
The Frequency Range, Resolution, Min Swp Time, or
Power Level is changed.
When using a phase stable jumper cable or adapter
to connect the DUT to the FieldFox. These should be
high-quality components.
Press
Cal 5
then follow the prompts.
During a QuickCal, press
Skip Load
when NOT using a
jumper cable or adapter.
Cal ON
is shown on the screen when a Preset Cal is
correcting the measurement.
Cal ON Q
is shown on the screen when a QuickCal is
correcting the measurement.
CAL ON U
is shown on the screen when an O,S,L Cal is
correcting the measurement.
When a calibration is being interpolated, an asterisk is
added to the screen annotation as follows:
Cal ON*
