Measurement
259
3-port TRL Calibration
• Overview
• Procedure
Other topics about TRL Calibration
Overview
The 3-port TRL calibration function lets you measure calibration data by
connecting thru, reflection (open or short), line, or match calibration
standards to (between) 3 desired test ports. This calibration provides the
most accurate measurement for non-coaxial parts, using 27 error terms
model in total for calibration in the same way as full 3-port calibration.
Before executing TRL calibration, you need to modify the calibration kit
definition you use (or create a new one). For more information, see
Changing the Calibration Kit Definition.
Procedure
1. Press Channel Next/Channel Prev keys to select the channel for which
you want to execute calibration.
2. Press Cal key.
3. Click Calibrate > 3-Port TRL Cal > Select Ports.
4. Select test ports for which you want to execute TRL 3-port
calibration. (In the following procedure, test ports you select here
are expressed as test ports x, y, and z.)
5. Click Thru/Line to start the measurement of the calibration standard.
6. Click Reflect to start the measurement of the calibration standard.
7. Click Line/Match to start the measurement of the calibration
standard.
Softkey Function
x-y
Line/Match
Executes line/match calibration for test ports x and
y. Use this to perform forward-direction
measurement and reverse-direction measurement
at the same time.
x-y Fwd
(Syx)
Executes line/match calibration for test ports x and
y. Use this to perform forward-direction
measurement only.
x-y Rvs
(Sxy)
Executes line/match calibration for test ports x and
y. Use this to perform reverse-direction
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