Common Measurement Settings
R&S
®
FSW
431
User Manual 1173.9411.02 ─ 19
The repetition interval should be set to the exact pulse period, burst length, frame
length or other repetitive signal characteristic.
Remote command:
Drop-Out Time ← Trigger Settings
Defines the time the input signal must stay below the trigger level before triggering
again.
For more information on the drop-out time see
Remote command:
Trigger Offset ← Trigger Settings
Defines the time offset between the trigger event and the start of the sweep.
For more information see
offset > 0:
Start of the sweep is delayed
offset < 0:
Sweep starts earlier (pre-trigger)
Only possible for zero span (e.g. I/Q Analyzer application) and gated trigger switched off
Maximum allowed range limited by the sweep time:
pretrigger
max
= sweep time
For the "Time" trigger source, this function is not available.
Remote command:
Hysteresis ← Trigger Settings
Defines the distance in dB to the trigger level that the trigger source must exceed
before a trigger event occurs. Settting a hysteresis avoids unwanted trigger events
caused by noise oscillation around the trigger level.
This setting is only available for "IF Power" trigger sources. The range of the value is
between 3 dB and 50 dB with a step width of 1 dB.
For more information see
Remote command:
Trigger Holdoff ← Trigger Settings
Defines the minimum time (in seconds) that must pass between two trigger events.
Trigger events that occur during the holdoff time are ignored.
For more information see
Remote command:
Trigger and Gate Configuration
