Three measurements were made on a line with two PIM sources that were spaced 100 feet apart. The Start Frequency is 1.870 GHz and the Stop Frequency is 1.910 GHz in a PIM Master with Option MW82119A‑1900 (PCS 1900 MHz).
The frequency step size for these three measurements was set to 100 kHz, then 500 kHz, and then 1000 kHz. As step size decreased, resolution improved, but time to scan increased dramatically. The three measurements are shown in Figure: Swept PIM 100 kHz Step Size, Figure: Swept PIM 500 kHz Step Size, and Figure: Swept PIM 1000 kHz Step Size. Note that Sweep #2 is a green trace, which is visible only in the first 4 MHz of the sweep window. The PIM Summary table displays the Sweep #1 title in yellow text and the Sweep #2 title in green text, which matches the trace colors in the sweep window.
100 kHz Frequency Step Size
Swept PIM 100 kHz Step Size
Marker 1
Note Marker 1 on the Swept PIM trace in Figure: Swept PIM 100 kHz Step Size. Although the Marker menu is not available, Marker 1 is always On and always set to the trace peak. Also note that the marker values are reported in green type above the measurement grid, upper‑left. No delta marker is available.
