The calibration that is used for a DTP measurement is a normalized calibration using a – 80 dBm PIM standard. At this point, the following procedure is the only required step in the calibration process. After the – 80 dBm PIM standard (refer to Table: PIM Standards) has been attached and measured, the Anritsu handheld instrument is considered calibrated.
1. Attach the – 80 dBm PIM Standard and a Low PIM Termination to the TEST PORT of the PIM Master.
2. Press the Freq/Dist menu button.
3. Press the DTP Aid submenu key.
4. Initiate the normalization process by pressing the Start Calibration submenu key. An Attention dialog box is displayed to confirm that the PIM Standard and low PIM termination are connected. Press Enter to calibrate. The test instrument calibration is run. After the calibration is completed, you are ready to connect the device under test (DUT) to the PIM Master.
Post‑Calibration Measurement
A good practice is performing a DTP measurement after the calibration in order to verify that measurements appear normal after the calibration. Figure: Typical DTP Measurement After a Calibration represents a typical Distance‑to‑PIM post‑calibration measurement.
