Instrument Functions
R&S
®
FSVA/FSV
544Operating Manual 1176.7510.02 ─ 09
Power Trigger Parameters
With the new implementation of the power sensor triggers some additional trigger
parameters were introduced. The following figure illustrates the trigger parameters for
an external power trigger.
Figure 3-47: Power Sensor Trigger Parameters
●
Level: Power that triggers the measurement
●
Hysteresis: Distance the input signal must stay below the trigger level before trig-
gering again
●
Holdoff time: Time which must pass before triggering again
●
Dropout time: Time the input signal must stay below the trigger level before trig-
gering again
●
Slope: Direction of edge on which the trigger occurs (positive = rising, negative =
falling)
Example:
In Power Sensor Trigger Parameters, the events A and C are valid trigger events for
triggering on a positive slope. The trigger level is exceeded and the dropout time and
holdoff time have elapsed. For triggering on a negative slope, E and G are valid trigger
events. B and F, however, are not valid trigger events: For B, the dropout time has not
elapsed; for F, the holdoff time has not yet elapsed.
To configure a power sensor as an external power sensor (PSE) trigger
This is the way to configure a power sensor as an explicite power sensor trigger.
1. Connect the power sensor to the "Power Sensor" interface on the front panel of the
R&S FSVA/FSV.
2. Configure the power sensor for use as described in Chapter 3.9.1, "Using Power
Sensors", on page 541.
Instrument Functions - Power Sensor (R&S
FSV-K9)
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