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Making Measurements
Using Ripple Limits to Test a Device
Viewing the Ripple Value in Margin Format
When is selected, the margin by which the ripple value passed or failed is
displayed. The ripple value margin is the user-defined maximum ripple minus the absolute ripple value
within the frequency band. This value is displayed in dB. A positive value is the margin by which the ripple
passes the ripple test in the frequency band. A negative value is the margin by which the ripple fails the
ripple test in the frequency band.
Figure 1-72 shows the ripple test with margin ripple value displayed for Frequency Band 2. Notice that
Frequency Band 2 passes the ripple test with a margin of 0.097 dB. The plus sign (+) indicates this band
passes the ripple test by the amount displayed. A minus sign () would indicate that the band failed by the
displayed amount.
Figure 1-72 Filter Pass Band with Margin Ripple Value for Band 2 Activated
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