Functions and Measurements 3
N9342C/43C/44C User’s Guide 55
Measuring Return Loss Using the Reflection
Calibration Routine
This procedure uses the reflection calibration
routine in the previous procedure “Making a
Reflection Calibration" on page 53, 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 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 3-22 Measuring the Return Loss of the Filter
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