Instruction manual

58 Chapter 3
Learning Basic Operations
Calibration and Compensation
NOTE When using the 4287A for measurement, open compensation, short compensation and load
compensation must be performed under
any circumstance. The calibration and
compensation wizard setting
feature has been designed so that, in addition to these three
essential settings, your desired calibration and compensation settings may be selected.
Step 4. Confirm that a check mark √ appears in the Low-Loss C check box in the Calibration area.
Step 5. Confirm that a check mark (√) only appears in the Open and Short check boxes in the
Compensation area.
Step 6. Confirm that Active table only is selected () so that calibration and compensation is only
performed for the measurement point
in the selected measurement point table.
Step 7. Press the key or key on the front panel the required number of times to move the
cursor to the Fixture box.
Step 8. Press the key or key on the front panel the required number of times to select
the model number of the test fixture to be used.
NOTE When using test fixtures other than 16191A, 16192A, 16193A, 16194A, 16196A, 16196B,
or 16196C, the electrical length must be registered as described in
“Registering the
Electrical Length of Unregistered Test Fixtures” on page 149 before making settings with
the calibration and compensation wizard. When the name of the test fixture and its
electrical length are registered, the test fixture becomes selectable in Step 8 of this
procedure.
Step 9. Press the key or key on the front panel the required number of times to move the
cursor to the OK button.
Step 10. Press the key on the front panel the required number of times to complete the setting
of the calibration and compensation wizard and close the dialog box.
NOTE To cancel the setting of the calibration and compensation wizard, press the key or the
key on the front panel to move the cursor in the dialog box to the Cancel button and
then press the key. If the setting is cancelled, the settings shown when the dialog box
was first opened will remain unchanged and be used as they are.
Executing short calibration
Use the following procedure to perform short calibration of the 7-mm terminal on the tip of
the test head.
Step 1. Turn the rotary knob ( ) to move the cursor in the softkey menu to the CAL WIZARD
key.