The Correction Functions Of The E4980A/Al Are Operated As Follows - Keysight E4980A User Manual

Configuring Measurement Conditions (Display and Function Related Settings)
CORRECTION page

The correction functions of the E4980A/AL are operated as follows:

On/off setting in OPEN,
SHORT and LOAD fields
Open/short correction at all
frequency points
Open/short/load correction
at user-specified spot
frequency points
114
OFF ON
Not Open/short correction at 51 preset
Performed frequency points is performed.
Correction at other frequency points is
performed by using interpolation based
on the correction data at the preset
frequencies adjacent to the test
frequency.
Not Open/short/load correction at
Performed user-specified spot frequency points is
performed in place of open/short
correction at all frequency points when
test frequency is identical with one of
the user-specified spot frequency
points.
Keysight E4980A/AL Precision LCR Meter