Measurements
R&S
®
FSW
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User Manual 1173.9411.02 ─ 19
6. Define the measurement parameters for each range as required. If symmetrical
setup is activated, you only have to configure the ranges to one side of the center
range.
In particular, define the limits for each range of the signal, i.e. the area in which the
signal level may deviate without failing the limit check. If several power classes
were defined (see
), define limits for each power class.
a) Define the type of limit check, i.e. whether absolute values or relative values
are to be checked, or both. The type of limit check is identical for all power
classes.
b) Define the limit start and stop values.
7. If the sweep list settings - other than the limit and transducer values - are identical
for several adjacent ranges, activate "Fast SEM" mode to speed up the measure-
ment. You only have to activate the mode for one range, the others are adapted
automatically.
8. If necessary, change the settings for the reference power to which all SEM results
refer in the "Reference Range" tab.
9. To indicate the determined peaks in the display during an SEM measurement,
select the "Analysis" button in the "Overview" and activate the "Show Peaks"
option.
10. To save the current SEM measurement settings to a file to re-use them later, save
a settings file as described in
"How to save a user-defined SEM settings file"
11. Start a sweep.
The determined powers and limit deviations for each range are indicated in the
Result Summary. If activated, the peak power levels for each range are also indica-
ted in the Spectrum diagram.
12. To save the Result Summary, export the results to a file as described in
ter 5.6.6.2, "How to Save SEM Result Files"
To perform an MSR SEM measurement
1. Select the "MSR Config" softkey.
2. Select the band category that determines the digital standards used in the mea-
surement setup (see
3. Define the bandwidth that contains all relevant carrier signals to be measured.
4. For measurements with GSM/EDGE, LTE FDD and W-CDMA carriers (BC2),
define whether a GSM/EDGE or an LTE FDD carrier, or both, are located at the
edge of the bandwidth.
5. Select the "Apply to SEM" button.
The sweep list is configured according to the MSR specification, with the required
number of ranges and defined limits.
Spectrum Emission Mask (SEM) Measurement
