The Receiver Application
R&S
®
FPC
140
User Manual 1178.4130.02 ─ 07
15.2.2
Frequency Configuration (Frequency Scan)
In frequency scan measurement mode, the R&S
FPC determines the power levels of a
set of single frequencies.
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. Each receive frequency represents a measurement point.
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 receiver frequencies.
Defining a scan range
1. Press the "Freq" key to open the frequency menu.
2. Select the "Start Frequency" menu item.
The R&S
FPC opens an input field to define the start frequency of the scan range.
3. Enter the frequency you want the scan to start at.
4. Select the "Stop Frequency"
The R&S
FPC opens an input field to define the stop frequency of the scan range.
5. Enter the frequency you want the scan to stop at.
6. Select the "Scan Step" menu item.
The R&S
FPC opens an input field to define the frequency step size of the scan.
7. Enter the step size you want to apply.
8. Select the "Full Scan" menu item to scan the full frequency range of the R&S
FPC.
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. In case of measurements based on a
, the set of receiver frequencies (or channels) is defined in a channel table.
In a channel table, you can define the receiver frequencies as you wish. The number of
receiver frequencies depends on the number of channels included in the channel table
and there may even be gaps between the receiver frequencies.
1. Press the "Freq" key to open the frequency menu.
2. Select the "Frequency Mode" menu item.
3. Select the "Channel Downlink" or "Channel Uplink" menu item to select a channel
table.
Frequency Configuration
