The Spectrum Application
FPC1000
77
User Manual 1178.4130.02 ─ 02
After activating the channel table, the R&S
FPC1000 is configured according to the
information contained in the channel table. Instead of a center frequency, the
R&S
FPC1000 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.
Selecting a channel instead of a center frequency
When you have selected
frequency input in terms of channels
quency, start or stop frequency is not possible anymore.
Instead you select a channel. The R&S
FPC1000 then adjusts the center, start and
stop frequency according to the channel table.
1. Press the "Freq" key to open the frequency menu.
2. Select the "Center Frequency" menu item.
The R&S
FPC1000 opens an input field to select a specific channel.
3. Enter the channel you would like to analyze.
The R&S
FPC1000 changes the frequency according to the channel table and the
channel you have selected.
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. In that
case, the center frequency of the R&S
FPC1000 decreases with ascending chan-
nel numbers.
•
In transmission systems containing gaps in the frequency range (as in the case of
television, for example), a channel table can comprise multiple ranges.
9.4 Amplitude Configuration
Access
: "Ampt"
Access
: "Setup" > "Config Overview" > "Amplitude" (selected settings)
In addition to measuring the frequency of a signal, the other main function of a spec-
trum analyzer is to measure level characteristics of the signal.
The R&S
FPC1000 provides several settings that have an effect on the way the level is
measured and how level values are displayed.
Remote commands to configure the amplitude:
●
Selecting the input impedance
The RF input has an impedance of 50
Ω.
Amplitude Configuration
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