The Spectrum Application (RF Measurements)
R&S
®
FPL1000
169
User Manual 1178.3370.02 ─ 11
If "Symmetrical Setup" mode is active when "Fast SEM" mode is activated, not all
sweep list settings can be configured symmetrically automatically (see also
Any other changes to the sweep settings of the combined range are applied to each
included range and remain changed even after deactivating "Fast SEM" mode.
Example
Figure 6-28: Sweep list using Fast SEM mode
In
, a sweep list is shown for which Fast SEM is activated. The formerly five
separately defined ranges are combined to two sweep ranges internally.
SEM with Multiple Sub Blocks ("Multi-SEM")
In the Spectrum application application only, spectrum emissions can be measured for
multiple sub blocks of channels (also referred to as a "Multi-SEM" measurement). Sub
blocks are a set of multiple ranges around a defined center frequency (carrier). Multiple
sub blocks can include gaps or overlap, and each sub block defines a separate mask.
In the overlapping masks, multi-limit lines are calculated. Up to 3 sub blocks (with 2
gaps) can be defined. For each sub block, the familiar configuration settings concern-
ing ranges, limit lines etc. can be defined individually.
Comparison to "traditional" SEM measurement
The default SEM measurement is simply a special case of "
Multi-SEM
" - consisting of
one single block. Only if the number of sub blocks in the basic SEM configuration is
larger than 1, multiple sub blocks are inserted in the configuration settings and result
tables.
Measurements and Results
