Measurements and Results
R&S
®
FSVA3000/ R&S
®
FSV3000
207
User Manual 1178.8520.02 ─ 01
The 3GPP TS 34.122 standard, for example, defines a mask for emissions outside the
transmission channel. This mask is defined relative to the input signal power. Three
frequency ranges to each side of the transmission channel are defined.
7.6.3
SEM Results
As a result of the Spectrum Emission Mask measurement, the following results are dis-
played in a diagram (see also
Chapter 7.6.4.2, "Limit Lines in SEM Measurements"
●
The measured signal levels
●
The result of the limit check (mask monitoring)
●
The defined limit lines
●
TX channel power "P"
●
The used power class
Multi-SEM measurements
Multi-SEM measurements are SEM measurements with more than one sub block. In
these measurements, each sub block has its own power class definitions. In this case,
the power class is not indicated in the graphical result displays.
Example:
For example, in
, "31 <
P <
39" is indicated as the used power class is
defined from 31 to 39.
Figure 7-34: Spectrum Emission Mask result displays
Spectrum Emission Mask (SEM) Measurement
