The Spectrum Application
FPC1000
62
User Manual 1178.4130.02 ─ 02
Selecting a standard
You can store the main measurement settings as a standard file. When you load such
a standard file, the R&S
FPC1000 automatically configures the measurement regard-
ing channel and general measurement settings.
Standard files for common telecommunications standards are already provided with
the R&S
FPC1000 firmware.
If you want to measure a different standard, you can also create custom standard defi-
nition files with the R&S
InstrumentView software and transfer them to the
R&S
FPC1000. For more information, refer to the documentation of the R&S
Instru-
mentView.
1. Press the "Meas" key to open the measurement menu.
2. Select the "Standard" menu item.
The R&S
FPC1000 opens a dialog box to select the standard.
3. Select one of the available standards.
The R&S
FPC1000 loads the configuration of the selected standard. It automati-
cally sets the span, resolution bandwidth, video bandwidth, sweep time and detec-
tor required by the standard.
If the measurement is not according to the selected standard anymore (for exam-
ple if you change a parameter), the R&S
FPC1000 shows a blue dot in front of the
standard display.
Defining the reference level
is the power level that the R&S
FPC1000 expects at the RF input.
When you select the reference level, make sure that you do not overload the
R&S
FPC1000 by applying a signal whose power exceeds the maximum reference
level.
As the power is measured with a small
bandwidth, it is still possible to overload the R&S
FPC1000, even if the trace is within
the measurement diagram. To prevent an overload, measure the occupied bandwidth
with the largest resolution bandwidth possible using the peak detector. If you set these
parameters, it is not possible for the trace to exceed the reference level.
To simplify operation and to prevent incorrect measurements, the R&S
FPC1000 has
an automatic routine for setting the reference level.
1. Press the "Meas" key to open the measurement menu.
2. Select the "Level Adjust" menu item.
The R&S
FPC1000 performs a measurement to determine the optimal reference
level.
It uses a resolution bandwidth of 1
MHz, a video bandwidth of 1
MHz and the peak
detector. After finishing the automatic measurement, the R&S
FPC1000 sets the
optimal reference level.
Measurements and Result Displays
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