Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
152
User Manual 1321.1011.02 ─ 11
6.1.8.3
Activating the Marker List
To see the exact frequency of the carrier and its sidebands, you can activate the
marker list that shows the value for each marker.
1. Press [MKR] key.
2. Select "Set Marker" softkey.
The R&S Spectrum Rider opens a submenu to select the marker function.
3. Select the checkbox for "View List" menu item.
The R&S Spectrum Rider displays the marker list that contains the values for car-
rier and sideband.
6.1.8.4
Using a Trigger
For more information on using external trigger to trigger measurements, see
6.1.9
Working with the Spectrogram Result Display
R&S Spectrum Rider option
R&S FPH-K15 (order number: 1321.0715.02) option is required to operate the R&S
Spectrum Rider in the interference analysis mode.
For more information, see
Chapter 11, "Interference Analyzer"
Equipped with option R&S FPH-K15, you can view measurement results in a spectro-
gram.
The spectrogram result display shows the spectral density of a signal in the frequency
domain and over time simultaneously.
Like other result displays, the horizontal axis represents the frequency span. The verti-
cal axis represents time. Time in the spectrogram runs chronologically from top to bot-
tom. Therefore, the top of the diagram is the present. A third dimension shows the
amplitude for each frequency by mapping different colors to every power level. The
result is therefore a two-dimensional diagram.
The color the R&S Spectrum Rider assigns to a power level that was measured
depends on:
●
Color table
●
Spectrogram reference level
●
Spectrogram level range
The spectrogram consists of horizontal lines, each of one pixel height, which is called
frames. In the default state, a frame is added to the spectrogram after each sweep.
This means that the amount of data in a frame depends on the sweep time. As the
spectrogram in the R&S Spectrum Rider runs from top to bottom, the outdated time-
Performing Spectrum Measurements
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