146 Chapter 4
Calibration
4-port TRL calibration
Step 7. Reflect to start the measurement of the calibration standard.
Softkey Function
Port 1 Reflect Executes reflection calibration for test port 1.
Port 2 Reflect Executes reflection calibration for test port 2.
Port 3 Reflect Executes reflection calibration for test port 3.
Port 4 Reflect Executes reflection calibration for test port 4.
Step 8. Line/Match to start the measurement of the calibration standard.
Softkey Function
1-2 Line/Match
*1
Executes line/match calibration for test ports 1 and 2.Use this to perform
forward-direction measurement and reverse-direction measurement at the
same time.
1-2 Fwd (S21)
*2
Executes line/match calibration for test ports 1 and 2.Use this to perform
forward-direction measurement only.
1-2 Rvs (S12)
*2
Executes line/match calibration for test ports 1 and 2.Use this to perform
reverse-direction measurement only.
1-3 Line/Match Executes line/match calibration for test ports 1 and 3.Use this to perform
forward-direction measurement and reverse-direction measurement at the
same time.
1-3 Fwd (S31) Executes line/match calibration for test ports 1 and 3.Use this to perform
forward-direction measurement only.
1-3 Rvs (S13) Executes line/match calibration for test ports 1 and 3.Use this to perform
reverse-direction measurement only.
1-4 Line/Match Executes line/match calibration for test ports 1 and 4.Use this to perform
forward-direction measurement and reverse-direction measurement at the
same time.
1-4 Fwd (S41) Executes line/match calibration for test ports 1 and 4.Use this to perform
forward-direction measurement only.
1-4 Rvs (S14) Executes line/match calibration for test ports 1 and 4.Use this to perform
reverse-direction measurement only.
2-3 Line/Match Executes line/match calibration for test ports 2 and 3.Use this to perform
forward-direction measurement and reverse-direction measurement at the
same time.
2-3 Fwd (S32) Executes line/match calibration for test ports 2 and 3.Use this to perform
forward-direction measurement only.
2-3 Rvs (S23) Executes line/match calibration for test ports 2 and 3.Use this to perform
reverse-direction measurement only.
2-4 Line/Match Executes line/match calibration for test ports 2 and 4.Use this to perform
forward-direction measurement and reverse-direction measurement at the
same time.
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