R&S FSH
Spectrum Analyzer Mode
Performing Spectrum Measurements
Operating Manual 1173.6275.12 - 30
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3.1.4.1 Selecting a Standard
If you need to perform measurements that are conform to a telecommunications
standard, you can activate one of the predefined standards that are already stored in
the R&S FSH memory. When starting the measurement in the default configuration,
the R&S FSH automatically activates the GSM/EDGE standard. However, you can
create new configurations to perform measurements on other standards as well.
► Press the MEAS key.
► Press the "Standard" softkey.
The R&S FSH opens a dialog box to select the standard.
► Select one of the available standards.
► Confirm the selection with the "Select" softkey.
The R&S FSH loads the configuration of the selected standard. It automatically
sets the optimal settings for the selected standard.
You can create and edit standards with the R&S FSH4View software and transfer them
to the R&S FSH via the USB or the LAN interface. The number of standards the
R&S FSH can store in its memory depends on the number of other data sets stored on
the R&S FSH.
For more information see "
3.1.4.2 Setting the Burst Length
The burst length is the measurement time that the R&S FSH performs measurements
with. The burst length can be equal or less than the sweep time.
► Press the MEAS key.
► Press the "Burst Length" softkey.
The R&S FSH opens an input field to define the burst length.
► Enter the length of the burst you need.
The R&S FSH performs the measurement over the time you have entered.
If the measurement time you have entered was greater than the sweep time, the
R&S FSH sets a burst length equal to the sweep time. To work with a greater burst
length, you have to increase the sweep time first.
The minimum burst length is the time corresponding to one trace pixel (= sweep
time / 631).
3.1.4.3 Setting the Reference Level
The reference level is the power level that the R&S FSH expects at the RF input. When
selecting the reference level, make sure that you do not overload the R&S FSH by
applying a signal whose power exeeds the maximum reference level.
