Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
164
User Manual 1321.1011.02 ─ 06.00
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.
●
R&S Spectrum Rider: 5 kHz to 2.0 GHz
●
R&S Spectrum Rider with R&S FPH-B3: 5 kHz to 3.0 GHz
●
R&S Spectrum Rider with R&S FPH-B4: 5 kHz to 4.0 GHz
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.
1. Press the [SPAN] key.
2. Select the "Full Span" softkey.
The R&S Spectrum Rider displays the spectrum over its entire frequency range.
3. Select the "Last Span" softkey.
The R&S Spectrum Rider restores the span that you have set just before display-
ing the entire frequency range.
Configuring Spectrum Measurements
