Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
137
User Manual 1321.1011.02 ─ 11
Figure 6-4: Screen layout for the SEM measurement
1 = SEM measurement mode
2 = Tx power measurement
3 = Tx bandwidth
4 = Measurement standard
5 = Limit check result
6 = SEM measurement list
7 = Scroll bar for SEM measurement list
8 =
9 =
10 = Spectrum emission mask (red line)
11 = Trace (yellow line)
12 = Peak (P<x>) and normal marker (M<x> and D<y>)
13 = SEM softkey menu
Markers in the SEM measurement
In addition to the normal marker functionality of the R&S Spectrum Rider, the SEM
measurement provides special markers labeled P1 to Px.
The R&S Spectrum Rider activates and positions these special markers automatically
after displaying the trace. Each of these markers marks the peak level in each SEM
subrange. Thus, the number of markers depends on the number of subranges defined
for the Spectrum Emission Mask and in turn depends on the standard you are measur-
ing against.
The numerical marker information (frequency and level) for these markers is part of the
SEM list.
Markers P1 to Px are fix and always remain on the peak level of the corresponding
subrange. If you would like to analyze other locations on the trace, use normal marker
and deltamarker functionality. For more information, see
Performing Spectrum Measurements
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