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Calibration and Compensation
Calibration and Compensation Procedure without Using Dedicated Test
Fixture
Step 5. Remove the DC short standard and connect the DC load standard.
Step 6. Click the
data.
Step 7. Remove the DC load standard.
9. How to measure low-loss capacitor calibration data
When a 7-mm terminal is used as a coaxial terminal of the test head and serves as a
calibration reference plane, measure the low-loss capacitor calibration data as follows:
Step 1. Connect the low-loss capacitor to the 7-mm terminal as a calibration reference plane.
Step 2. Click the
capacitor data.
Step 3. Remove the low-loss capacitor from the 7-mm terminal.
10. Specifying creation of automatic setting file for when power is turned ON
The setting conditions of the 4287A, including calibration data and compensation data, can
be automatically stored for reuse in a file named "autorec.sta" in the internal nonvolatile
memory. To use this function, click the
calibration so that the check mark (
NOTE
When the 4287A is turned ON, it searches the internal nonvolatile memory for a file called
"autorec.sta," and if it is found, the setting conditions (including calibration and
compensation data) stored in the file are automatically recalled.
As described in "20. Specifying creation of automatic setting file for when power is turned
ON" on page 140, it is also possible to automatically store the setting conditions, including
the compensation data, in a file named "autorec.sta" upon completion of compensation.
When this is done, the calibration data executed immediately before compensation are
simultaneously saved. Accordingly, if both calibration and compensation are to be
executed, it is not necessary to click the
11. How to end calibration
Press the
box.
12. How to connect cable and test fixture
Connect the cable and test fixture required to connect the DUT to the tip of the calibration
reference plane.
13. How to carry out port extension compensation (fixture selection)
Step 1. Press the
FIXTURE softkey menu.
Step 2. Press the key corresponding to the fixture name (this is
registered in Step 3 of "1. How to define calibration and compensation kit and how to
register electrical length for port extension compensation." on page 135.
138
button in the calibration window and measure the DC load calibration
DC LOAD
LOW-LOSS C
button in the calibration window and measure the low-loss
button in the Calibration Dialog box to end calibration and close the dialog
Done
Select Fixture
key in the Cal/Compen softkey menu to display the SELECT
check box upon completion of
Auto Recall
√
) appears.
check box at the time of calibration.
Auto Recall
USER [ ]
if no name is entered)
Chapter 6
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