User Manual

Digital Demodulation
R&S
®
FPC
162User Manual 1178.4130.02 ─ 05
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"External Fall": Chapter 12.7, "Trigger Configuration", on page 107
In addition to the trigger settings available in the spectrum application, the digital
demodulation application provides an I/Q power trigger source.
Using the I/Q power trigger
The I/Q power trigger initiates a measurement when the magnitude of the sampled I/Q
data exceeds a certain level.
1. Press the "Sweep" key to open the sweep menu.
2. Select the "Trigger" menu item to open the trigger menu.
3. Select the "IQ Power <x>" menu item.
The R&S FPC opens an input field to define the trigger level.
4. Define an appropriate trigger level.
To make sure that the trigger initiates a measurement, we recommend a trigger
level that is about 6 dB lower than the actual expected signal level.
Note that a burst is only recognized if it is not too short and if the gap between two
bursts is not too short.
Trigger Configuration