Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
176
User Manual 1321.1011.02 ─ 11
The R&S Spectrum Rider adjusts the horizontal axis according to your input, begin-
ning with the start frequency and ending with the stop frequency.
If you have entered a stop frequency that is outside the maximum frequency range,
the R&S Spectrum Rider sets the stop frequency to the possible maximum.
The softkey label of the "Parameter View" changes from "Center" and "Span" to
"Start" and "Stop".
6.2.2.5
Setting the Span
The span is the frequency range around the center frequency that a spectrum analyzer
displays on the screen. The span you should select depends on the signal and the
measurement that you are performing. A rule of thumb is that it should be at least twice
the bandwidth occupied by the signal.
The available span for frequency domain measurements depends on the instrument
model and installed option.
Model
Frequency upgrade option
Order number for frequency
upgrade option
Model 02 - 5 kHz to 2.0 GHz
R&S FPH-B3, 2 GHz to 3 GHz
1321.0667.02
R&S FPH-B4, 3 GH to 4 GHz
1321.0673.02
Model 06 - 5 kHz t0 6.0 GHz
R&S FPH-B8, 6 GHz to 8 GHz
1321.0767.02
Model 13 - 5 kHz to 13.6 GHz
R&S FPH-B20, 13.6 GHz to 20
GHz
1321.0773.02
Model 26 - 5 kHz to 26.5 GHz
R&S FPH-B31, 26.5 GHz to 31
GHz
See
1321.0780.02
If you set a span of 0 Hz (zero span), the R&S Spectrum Rider performs measure-
ments in the time domain.
1. Select the "Span" softkey on the "Parameter view" to define the span.
Alternatively, press the [SPAN] key.
The R&S Spectrum Rider opens an input field to define the span.
2. Enter the span you need.
The R&S Spectrum Rider adjusts the span of the horizontal axis.
Special touchscreen gesture
Alternatively, pinch and stretch on the touchscreen to change the span parameter.
See
If you have to switch between full span and a smaller span, you can do so without hav-
ing to enter the numeric values.
Configuring Spectrum Measurements
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