Specifications

120 Chapter 13
Stimulus Response Measurements (ESA Options 1DN and 1DQ)
Measuring Return Loss using the Reflection Calibration Routine
Stimulus Response Measurements
(ESA Options 1DN and 1DQ)
Measuring Return Loss using the Reflection
Calibration Routine
This procedure uses the reflection calibration routine in the proceeding
procedure “Making a Reflection Calibration Measurement” on page 118
to calculate the return loss of the 200 MHz bandpass filter. See the
concepts section “Converting Return Loss to VSWR” on page 160 to find
the VSWR for the measured return loss.
Step 1. After calibrating the system with the above procedure, reconnect the
filter in place of the short circuit without changing any analyzer
settings.
Step 2. Use the marker to read return loss. Position the marker with the
front-panel knob to read the return loss at that frequency:
Press
Marker, rotate front-panel knob.
NOTE Or you can use the Min Search function to measure return loss by
pressing
Peak Search, Min Search, a marker is placed at the point where
the return loss is maximized. See Figure 13-9.
Figure 13-9 Measuring the Return Loss of the Filter