Other topics about TRL Calibration
The 4-port TRL calibration function lets you measure calibration data by connecting thru, reflection (open or short), line, or match calibration standards to (between) 4 test ports. This calibration provides the most accurate measurement for non-coaxial parts, using 48 error terms model in total for calibration in the same way as full 4-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.
Press Channel Next/Channel Prev keys to select the channel for which you want to execute calibration.
Press Cal key.
Click Calibrate > 4-Port TRL Cal > Select Ports.
Click Thru/Line to start the measurement of the calibration standard.
Click Reflect to start the measurement of the calibration standard.
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Softkey |
Function |
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Port 1 Reflect |
Executes reflection calibration for test port 1. |
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Port 2 Reflect |
Executes reflection calibration for test port 2. |
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Port 3 Reflect |
Executes reflection calibration for test port 3. |
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Port 4 Reflect |
Executes reflection calibration for test port 4. |
Click Line/Match to start the measurement of the calibration standard.
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Softkey |
Function |
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1-2 Line/Match |
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. |
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Executes line/match calibration for test ports 1 and 2.Use this to perform forward-direction measurement only. |
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Executes line/match calibration for test ports 1 and 2.Use this to perform reverse-direction measurement only. |
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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. |
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1-3 Fwd (S31) |
Executes line/match calibration for test ports 1 and 3.Use this to perform forward-direction measurement only. |
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1-3 Rvs (S13) |
Executes line/match calibration for test ports 1 and 3.Use this to perform reverse-direction measurement only. |
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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. |
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1-4 Fwd (S41) |
Executes line/match calibration for test ports 1 and 4.Use this to perform forward-direction measurement only. |
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1-4 Rvs (S14) |
Executes line/match calibration for test ports 1 and 4.Use this to perform reverse-direction measurement only. |
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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. |
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2-3 Fwd (S32) |
Executes line/match calibration for test ports 2 and 3.Use this to perform forward-direction measurement only. |
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2-3 Rvs (S23) |
Executes line/match calibration for test ports 2 and 3.Use this to perform reverse-direction measurement only. |
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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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2-4 Fwd (S42) |
Executes line/match calibration for test ports 2 and 4.Use this to perform forward-direction measurement only. |
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2-4 Rvs (S24) |
Executes line/match calibration for test ports 2 and 4.Use this to perform reverse-direction measurement only. |
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3-4 Line/Match |
Executes line/match calibration for test ports 3 and 4. Use this to perform forward-direction measurement and reverse-direction measurement at the same time. |
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3-4 Fwd (S43) |
Executes line/match calibration for test ports 3 and 4. Use this to perform forward-direction measurement only. |
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3-4 Rvs (S34) |
Executes line/match calibration for test ports 3 and 4. Use this to perform reverse-direction measurement only. |
Press Done to finish TRL 4-port calibration. At this point, the calibration coefficient is calculated and saved. The error correction function is automatically turned on.