User`s guide

Table Of Contents
4 Making Measurements
70 N9340A User’s Guide
Measuring Return Loss Using the Reflection
Calibration Routine
This procedure uses the reflection calibration
routine in the previous procedure “Making a
Reflection Calibration Measurement" on page 67, to
calculate the return loss of the 370 MHz low- pass
filter.
1 After calibrating the system with the above
procedure, reconnect the filter in place of the
short (cal device) without changing any analyzer
settings.
2 Use the marker to read the return loss. Position
the marker with the front- panel knob to read
the return loss at that frequency.
Rotate the knob to find the highest peak and
the readout is the maximum return loss.
Figure 22 Measuring the Return Loss of the Filter