Keysight E4990A - Port Extension Compensation

E4990A Help
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2. Press Correction > ON|OFF to make the user calibration available
(ON) or not available (OFF) for measurement.
Defining Standard Values for User Calibration
You can define standard values of OPEN, SHORT, and LOAD for user
calibration. Figure below shows the circuit models of the user calibration kit
for the Agilent E4990A.
Each calibration’s standard value can be confirmed and changed as follows:
1. Press the Cal > User Cal > Define Value to display the Calibration
Data Definition Menu.
2. Select one of the calibration data definition keys, Open Conduct (G),
Open Cap (C), Short Resist (R), Short Induct (L), Load Resist (R), Load
Induct (L), or Load Cap (C), to confirm or set the calibration data
definition.
3. Enter the desired value to specify the calibration data definition.
Port Extension Compensation
Port extension compensation is used to compensate an error caused by the
electrical delay when the 7-mm port of the 42942A Terminal Adapter or
3.5-mm port of the 42941A Impedance Probe is extended with a one-port
configuration.
Port extension compensation can be performed when 42942A Extension or
42941A Extension is chosen in adapter selection.
Perform the port extension compensation as follows:
1. Press Cal > Port Extension and input the desired port extension
value.
You can set the port extension value in either electrical
length or delay time. When the port extension value is set by one of