Instructions

Table Of Contents
Spectrum Analysis
R&S
®
Scope Rider RTH
118User Manual 1326.1578.02 ─ 15
10
6
3
1
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Figure 6-2: Spectrum display
1 = Reference level (y-axis, by default 0 dBm line)
2 = Currently calculated spectrum (power vs. frequency graph)
3 = Amplitude scale (y-axis)
4 = Channel providing input data
5 = Coupling of the input channel
6 = Frequency scale (x-axis)
7 = Amplitude scale (y-axis, power per division)
8 = Operating status of the spectrum measurement ("Hold"/"Run")
9 = Displayed resolution bandwidth
10 = Displayed frequency span
11 = Center frequency
12 = Marker results
13 = Reference marker
Data source
Spectrum analysis is performed on the data captured from one of the active input
channels. Analysis can only be performed on one channel at a time.
Time base and resolution bandwidth
Spectrum analysis is generally performed on the data captured during the entire data
acquisition. To restrict the time base for which spectrum analysis is to be performed
(thus reducing calculation time), you must increase the resolution bandwidth (RBW,
see "Resolution bandwidth (RBW)" on page 122). Gating or zooming is not available
for spectrum analysis.
Spectrum Mode (Option R&S
RTH-K18)