Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
196
User Manual 1321.1011.02 ─ 06.00
3. Select the "Channel Downlink" or "Channel Uplink" menu item.
The R&S Spectrum Rider opens the "File Manager" dialog to select a channel
table.
4. Select one of the available channel tables.
After activating the channel table, the R&S Spectrum Rider is set up according to
the information contained in the channel table. Instead of a center frequency, the
R&S Spectrum Rider shows the currently active channel number including the
name of the channel. The center frequency of a channel is defined in the channel
table and is the frequency corresponding to the selected channel.
Defining a downlink or uplink channel
It is important to note whether the channel number is assigned in the uplink or downlink
channel.
1. Press the [FREQ] key.
2. Select the "Freq Mode" softkey.
The R&S Spectrum Rider opens a submenu that contains the channel menu items.
3. Select the "Set to Downlink " or "Set to Uplink" menu item.
The R&S Spectrum Rider maps the channel number to the appropriate uplink or
downlink channel table.
Selecting a channel
Entering a center, start or stop frequency is not possible anymore. Instead you select a
channel. The R&S Spectrum Rider then adjusts the center, start and stop frequency
according to the channel table.
1. Press the [FREQ] key.
2. Select the "Center Frequency" softkey.
The R&S Spectrum Rider opens an input field to select the channel.
3. Enter the channel you want to perform measurements on.
The R&S Spectrum Rider changes the channel according to the channel table.
Channel numbers are assigned to frequencies as follows:
● The first channel is assigned a channel number and a frequency.
● All subsequent channels have ascending numbers.
● The frequency spacing between channels is fixed. It can also be negative, i.e.
the center frequency of the R&S Spectrum Rider decreases with ascending
channel number.
● In transmission systems containing gaps in the frequency range (as in the case
of television, for example), a channel table can comprise multiple ranges.
Working with Channel Tables
