Receiver Mode
R&S
®
Spectrum Rider FPH
287
User Manual 1321.1011.02 ─ 11
The "Polygon" trace style shows the trace as a continuous, horizontal line. The
gaps between the actual measurement frequencies are interpolated.
12.1.2.1
Defining the Scan Range
The scan range defines the frequency range that the scan takes place in. Therefore,
you have to define a start and stop frequency for the scan range and a scan step size.
The step size defines the (equidistant) space between the receive frequencies and
thus, in combination with the start and stop frequency, the number of receive frequen-
cies considered in the scan.
Example:
If you define a scan range from 100 MHz to 200 MHz with a step size of 10 MHz, the
receive frequencies that are analyzed are 100 MHz, 110 MHz, 120 MHz, …, 200 MHz.
Overall, this scan range defines a set of 11 receive frequencies.
1. Press [FREQ] key.
2. Select "Start Freq" softkey.
The R&S Spectrum Rider opens an input field to define the start frequency.
3. Enter the frequency you want the scan to start at.
4. Select "Scan Stop" softkey.
The R&S Spectrum Rider opens an input field to define the stop frequency.
5. Enter the frequency you want the scan to stop at.
6. Select "Scan Step" softkey.
The R&S Spectrum Rider opens an input field to define the scan step frequency.
7. Enter the step size you want to apply. The R&S Spectrum Rider starts the scan
when you have finished defining the scan range.
Performing a channel scan
Instead of a frequency scan, you can also perform a channel scan. A channel scan is
based on the contents of a channel table. If there are measurements based on a chan-
nel table, the set of receive frequencies (or channels) is defined in a channel table.
In a channel table, you can define the receive frequencies as you wish. The number of
receive frequencies depends on the number of channels included in the channel table
and there may even be gaps between the receive frequencies.
Selecting the Measurement Mode
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