Rohde & Schwarz FSH4, Руководство по эксплуатации

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R&S FSH Digital Modulation Analyzer
Measurements on LTE Signals
Operating Manual 1309.6275.12 - 14 208
Customizing the color map
Alternatively, you can customize the color map and customize it for over-the-air
measurements and cable connected measurements separately.
M Press the "Display Settings" softkey.
M Select the "Over-The-Air Maximum…" or the "Over-The-Air-Minimum…" menu item
to define a color map for over-the-air measurements.
M Select the "Cable Connected Maximum…" or the "Cable Connected Minimum…"
menu item to define a color map for cable connected measurements.
In both cases, the "Minimum…" menu item defines the lower threshold of the color
map while the "Maximum…" menu item defines the upper threshold of the color
map. The threshold is the minimum or maximum signal level that is included in the
color map.
The application also allows you to select the color scheme.
M Press the "Display Settings" softkey.
M Select the "Color Table" menu item.
The R&S FSH opens a submenu.
M Select the color scheme you want.
7.5.4 Configuring the Measurement
Some of the results depend on the measurement configuration.
7.5.4.1 Selecting the Channel Bandwidth
The LTE standard specifies the following bandwidths with the appropriate number of
resource blocks.
Channel bandwidth (MHz) 1.4 3 5 10 15 20
Number of resource blocks 6 15 25 50 75 100
M Press the MEAS key.
M Press the "Signal Settings" softkey.
M Select the "Channel Bandwidth" menu item.
The R&S FSH opens a submenu to select the bandwidth.
M Select one of the bandwidths available in the menu.
The R&S FSH sets the bandwidth you have entered and calculates the
corresponding number of resource blocks according to the standard.