Keysight Technologies N9321C User Manual page 72

Functions and Measurements
Measuring Stop Band Attenuation of a Lowpass Filter
64
12 Use the front-panel knob to place the marker at the highest peak in
the stop band to determine the minimum stop band attenuation. In
this example, the peak occurs with Delta of 563 MHz. The
attenuation is -60.93 dB. See
Figure 3-21Minimum Stop Band Attenuation
Figure 3-21
.