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Using Gamma Table

Gamma Correction adjusts for the impedance difference between the Device-Under-Test (DUT) and the power sensor. You can choose between Single Point Gamma correction (default) or Table-Based Gamma correction, depending on your test setup.

Instructions

Single Point Gamma

  1. At the bottom of the Instrument Setup tab, click the Gamma Corrections... button from the Corrections pane.
  2. The Gamma Correction dialog box is displayed containing two tabs. Select the "Single Point" tab.



  3. Enter the desired magnitude and phase angle in degrees, according the following ranges: 

  4. From the "DUT Gamma Mode" drop-down list, select the desired "Single Point".
  5. Select the "Enable Gamma Correction" checkbox to enable the correction.
  6. Click "X" in the upper right corner to return to the main interface.

Table-Based Gamma

  1. At the bottom of the Instrument Setup tab, click the Gamma Corrections... button from the Corrections pane.
  2. The Gamma Correction dialog box is displayed containing two tabs. Select the "Tables" tab.



  3. Select the desired table from the list and click the Edit button to modify the table parameters.
  4. From the Gamma Correction Edit dialog, you can edit existing parameters and add or delete points in the table.



  5. If desired, you can enter a new name in the "Table Name" field.
  6. To edit an existing point, double click an entry in the table and change the table parameters.
  7. For new points, enter the desired frequency, magnitude, and phase angle in degrees, according to the following ranges:

  8. Click OK to save the data to the table.

Repeat Steps 7 and 8 for up to 1024 entries.

  1. Click OK to save the Gamma table.
  2. From the "DUT Gamma Mode" drop-down list, select the desired Gamma table.
  3. Select the "Enable Gamma Correction" checkbox to enable the correction.
  4. Click "X" in the upper right corner to return to the main interface.