First of all, select the “FFT” option on the “MODE” (screenshot 2A).
The spectrum then appears on the SMP3 display. You may now select the
desired span (screenshot 2B).
If you then press “LOG” on the dynamic menu, the FFT of the signal will be
saved, which displays information about the limit selected, span, max hold
duration and filter (screenshot 2C).
Screenshot 2A Screenshot 2B Screenshot 2C
3. Single frequency evaluation
This measurement mode allows you to track changes in a given frequency
over time. The display shows the values in real time as they are obtained (each
second).
This tracking can be done in two ways:
•
In FFT mode (screenshot 3A) place the cursor on the desired frequency and
change to “Freq. log” on the “MODE” menu (screenshot 3B).
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