Applications
R&S
®
RTM3000
173User Manual 1335.9090.02 ─ 09
MASK:ACTion:SCRSave:EVENt:MODE on page 538
MASK:ACTion:WFMSave:EVENt:MODE on page 538
Capture Segments
Selects whether all acquisitions are stored in segments, or only failed acquisition. You
can use the hostiry to analyze the segments.
Only available with history option R&S RTM-K15.
Remote command:
MASK:CAPTure[:MODE] on page 541
9.2 FFT analysis
The R&S RTM3000 provides basic FFT calculation, which is included in the firmware.
During FFT analysis, a time-based waveform is converted to a spectrum of frequen-
cies. As a result, the magnitude of the determined frequencies is displayed: the power
vs. frequency diagram (spectrum). FFT results are useful to obtain an overview of the
input signal in the frequency domain and to detect unusual signal effects (such as
spurs or distortions) visually.
To enable FFT analysis
► Press the [ FFT] key.
Alternatively, tap the "FFT" icon in the toolbar.
The instrument adjusts the time scale of the waveform and sets appropriate center
frequency and span.
To disable FFT analysis
► There are several ways to exit FFT analysis:
● Press the [ FFT] key repeatedly until FFT is off.
● Tap the "FFT" icon in the toolbar.
● In the short menu, tap "FFT Off".
9.2.1 FFT display
When FFT is active, two diagrams are displayed: the signal vs. time at the top, the
result of the FFT analysis (spectrum) at the bottom. Between the diagrams, FFT-spe-
cific parameters are shown and can be set directly.
FFT analysis
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