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Scope Features and Functions 2
U2701A/U2702A USB Modular Oscilloscopes User’s Guide 65
Peak Scan
After performing FFT measurements, you can obtain the peak
information of your spectrum by following the steps below.
1 Click on the Stop button on the oscilloscope toolbar to stop
the signal acquisition, then click on the FFT & Math button.
2 On the FFT Settings panel, click on the Peak Scan tab, then
select the Peak Scan checkbox to enable peak scan.
3 Once the Peak Scan is enabled, you will see an indicator on
your spectrum pointing at the first peak of your spectrum as
shown
Figure 2- 13 .
4
To find the subsequent peaks (in descending order) of your
spectrum, click on the Find Next Peak button. You will see an
indicator on your spectrum pointing at the next highest peak
of your spectrum as shown
Figure 2- 14 .
5
To get the first peak once again, click on the Find First Peak
button.
N O T E
To use the Peak Scan function, the oscilloscope signal acquisition must be
stopped. This is because in Run mode, you will not see proper subsequent
peaks as the spectrum is being refreshed.
U2700A_Modular_Scope.book Page 65 Tuesday, May 6, 2008 9:32 AM