Rohde & Schwarz ZVH4 - Page 115

R&S ZVH Spectrum Analyzer Mode (R&S ZVH-K1)
Performing Spectrum Measurements
Operating Manual 1309.6946.12 - 09 100
Markers in the SEM measurement
In addition to the normal marker functionality of the R&S ZVH, the SEM measurement
provides special markers labeled P1 to Px.
The R&S ZVH 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
measuring 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'd like to analyze other locations on the trace, use normal marker and
deltamarker functionality. For more information see "Using Markers and Deltamarkers"
on page 145.
4.1.6.1 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 ZVH memory. 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 ZVH opens a dialog box to select the standard.
► Select one of the available standards.
► Confirm the selection with the "Select" softkey.
The R&S ZVH loads the configuration of the selected standard. It automatically
sets the optimal span, resolution bandwidth, video bandwidth, sweep time and
detector for the standard.
You can create and edit standards with the R&S ZVHView software and transfer them
to the R&S ZVH via the USB or the LAN interface. The number of standards the
R&S ZVH can store in its memory depends on the number of other data sets stored on
the R&S ZVH.
For more information see "Managing Datasets" on page 27.
4.1.6.2 Optimizing Measurement Settings
After selecting the standard and applying the signal to the R&S ZVH, you can optimize
measurement settings to avoid overloading the R&S ZVH.
► Press the "Adjust Settings" softkey.
The R&S ZVH performs a measurement to determine the ideal reference level ans
span..