Analog Demodulation
R&S
®
FPC
156
User Manual 1178.4130.02 ─ 07
The sweep menu provides settings to control the measurement and the way data is
captured.
Selecting the measurement mode
The measurement mode defines how often the data is demodulated.
In continuous mode, the R&S
FPC demodulates the signal over and over until you stop
it deliberately. The measurement results are updated accordingly.
In single mode, the R&S
FPC demodulates the signal once and then stops without
updating the results any longer. Another measurement starts only when you deliber-
ately initiate it.
1. Press the "Sweep" key to open the sweep menu.
2. Select the "Continuous Sweep" menu item.
The R&S
FPC demodulates the signal continuously.
You can interrupt a continuous measurement by selecting the "Continuous Sweep"
menu item again.
3. Select the "Single Sweep" menu item.
The R&S
FPC demodulates the signal once and displays the results of that mea-
surement.
16.6
Limits
Access
(limits menu): "Lines"
Remote commands to configure limits:
●
Limits are an analysis tool that allows you to compare the measured signal levels to
signal specifications, and determine if the measured signal characteristics comply to
these specifications. You can define limits for all numerical results available in the AM
and FM result summary.
Note that you can define limits only for the numerical results. The graphical results of
the analog demodulation do not support limits or limit lines.
To use limits, you have to create a set of limit values with the "AM Limits" and "FM Lim-
its" tools available with the R&S
InstrumentView software. The functionality of these
tools allows you to specify limits for each result type and whether the result should be
checked against the limit or not.
For more information about creating, editing and transferring limits, refer to the user
manual of the R&S
InstrumentView.
Selecting and evaluating limits
1. Press the "Lines" key top open the limits menu.
2. Select the "Select Limits" menu item to open the file manager.
Limits
