
190 Chapter 4
Calibration
Changing the Calibration Kit Definition
Step 3. Select Sub Class3 .
Step 4. Press
TRL Line/Match - Set All - LINE >7G - Return.
Step 5. Press and check that the name you specified is selected as Cal Kit.
By assigning Match and Line 1/2 to subclass 1/2/3 respectively, you can calibrate 3
standards with different frequency bands for TRL line/match calibration.
Setting options for TRL calibration
This section describes how to set the reference impedance and measurement data of the
standard used for calculating the calibration plane for TRL calibration.
Step 1. Press .
Step 2. Press
Cal Kit, and select a calibration kit.
Step 3. Press
Modify Cal Kit.
Step 4. Press
TRL Option.
Step 5. Press
Impedance to select the reference impedance.
Step 6. Press
Reference Plane to select the measurement data of the standard used for calculating
the reference plane.
Softkey Function
Line Calculates the calibration coefficient using the characteristic impedance of the
line standard as the reference impendence. The impedance of the line standard
is used as the center of the Smith chart, and the calibration coefficient is
calculated using the line standard’s as the direction.
System Calculates the calibration coefficient using the system impedance as the
reference impendence. Select this when the line impedance and the test port
impedance differ.
Softkey Function
Thru Uses the length of the thru/line standard to calculate the calibration plane.
Reflect Uses the reflection coefficient of the reflection standard to calculate the
calibration plane.
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