Spectrum Analyzer Mode
R&S
®
Cable Rider ZPH
248
User Manual 1321.0950.02 ─ 07
Audio signal
You can turn the acoustic signal that sounds in case of a limit violation on and off.
► Select the "Audio Beep" menu item.
Once selected, the audio beep is active, the R&S Cable Rider ZPH beeps each
time a limit is violated.
Limit violation
Note that a limit check fails only if the signal exceeds the limit line. If the signal level is
the same as the limit value, the limit check passes.
8.3
Working with Channel Tables
Almost all transmission systems divide their assigned frequency ranges into channels.
Each channel corresponds to a specific frequency. To keep the handling of such sys-
tems simple, you can use channel tables instead of entering frequencies manually.
The R&S Cable Rider ZPH already comes with an assortment of channel tables that
you can use without doing anything. If you want to test transmission standards that are
not listed, you can also build channel tables manually with the "Channel Table Editor"
of the R&S InstrumentView software package that is delivered with the R&S Cable
Rider ZPH. To use one of the edited channels, you have to copy the channel table to
the R&S Cable Rider ZPH.
For more information on channel table, see
Chapter 5.9, "Managing Datasets"
,
on page 107.
Selecting a channel table
1. Press the [FREQ/DIST] key.
2. Select the "Freq Mode" softkey.
The R&S Cable Rider ZPH opens a submenu that contains the channel menu
items.
3. Select the "Channel Downlink" or "Channel Uplink" menu item.
The R&S Cable Rider ZPH 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 Cable Rider ZPH is set up according to
the information contained in the channel table. Instead of a center frequency, the
R&S Cable Rider ZPH 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.
Working with Channel Tables
