Rohde & Schwarz 1321.0615.02, User Manual

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Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
190 User Manual 1321.1011.02 ─ 11
5 = Span 0 Hz (time domain)
6 = Gate trigger softkeys menu
7 = Measurement of LTE signal within the gate length
6.2.6 Working with Traces
The trace menu contains all functions available to customize the trace display.
● Selecting the Trace Mode ..................................................................................... 190
● Selecting the Detector ...........................................................................................191
● Working with a Second Trace ............................................................................... 193
● Working with Memory Traces ................................................................................194
● Using Trace Mathematics ..................................................................................... 194
6.2.6.1 Selecting the Trace Mode
The R&S Spectrum Rider provides several trace modes. The trace mode defines the
way the R&S Spectrum Rider writes the trace.
1. Press [TRACE] key.
2. Select "Trace Mode" softkey to set the trace mode.
3. Select the trace mode you want to work with.
If you have selected the average trace mode ("Average: 10" menu item), the R&S
Spectrum Rider opens an input field to set the number of sweeps the R&S Spec-
trum Rider includes in the averaging.
4. Enter the number of sweeps to include in the averaging.
In continuous sweep mode, the R&S Spectrum Rider now calculates the moving
average over the number of sweeps you have specified. In single sweep mode, it
stops the measurement after finishing the sweeps and averages the traces.
The R&S Spectrum Rider provides the following trace modes.
●
Clear/Write
In its default state, the R&S Spectrum Rider overwrites the trace after each sweep.
You can apply all detectors in this mode.
●
Average
The trace is the result of the moving average over several sweeps.
The R&S Spectrum Rider calculates the (moving) average of the power levels for
each pixel over a particular number of sweeps in the range from 2 to 999.
Averaging reduces the effects of noise, but has no effects on sine signals. Using
the trace averaging therefore is a good way to detect signals in the vicinity of noise.
You can apply all detectors in this mode.
●
Max Hold
The trace shows the maximum power levels that have been measured at each
pixel.
To overwrite a max hold trace, change a parameter in a way that the results cannot
be compared any more (e.g. the span). Using the max hold trace mode is a good
Configuring Spectrum Measurements
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