Specifications

38 Chapter 4
Preparing for Accurate Measurement
Performing Calibration
Performing Calibration
Setting calibration kit values
You can select either the 4287A option 700 (16195B 7-mm calibration kit) or a
user-defined calibration kit. To make this selection, use the following command:
• :CORR1:CKIT on page 231
If you opt to use a user-defined calibration kit, you need to specify how you define the
calibration kit and then enter the definitions.
Choosing the definition method (fixed or point-by-point)
• :CORR1:CKIT:LIST on page 232
Entering definitions
To define the OPEN, SHORT, and LOAD standards, use the commands listed in the table
below.
When you define the impedance value for the LOAD standard, you can choose one of the
available parameter types by using the following command:
• :CORR1:CKIT:STAN3:FORM on page 241
Measuring data for calculating calibration coefficients and turning on
calibration function
To measure the data for calculating the calibration coefficients, use the following
command:
• :CORR1:COLL on page 244
This command obtains the data needed for calculating the calibration coefficients for both
impedance and R
dc
measurements. If you want to obtain the data for either impedance or
R
dc
measurement alone, use one of the following commands instead:
• :CORR1:COLL:RF on page 246
• :CORR1:COLL:DC on page 245
NOTE Issuing the :CORR1:COLL, :CORR1:COLL:RF, or :CORR1:COLL:DC command
does not trigger the instrument to begin data measurement. Therefore, unless the trigger
source is Internal trigger, you must trigger the instrument after issuing the command.
Impedance value R
dc
value Offset delay time
OPEN :CORR1:CKIT:STAN1:LIST
on page 235
:CORR1:CKIT:STAN1:DC
on page 233
:CORR1:CKIT:STAN1:EDEL
on page 234
SHORT :CORR1:CKIT:STAN2:LIST
on page 238
:CORR1:CKIT:STAN2:DC
on page 236
:CORR1:CKIT:STAN2:EDEL
on page 237
LOAD :CORR1:CKIT:STAN3:LIST
on page 242
:CORR1:CKIT:STAN3:DC
on page 239
:CORR1:CKIT:STAN3:EDEL
on page 240