Rohde & Schwarz NRP2, User Manual

Page: 91 / 419

Instrument Functions
NRP2
88 User Manual 1173.9140.02 ─ 07
Fig. 4-21: Trigger dialog box, page 2
A | B | C | D ← Trigger dialog box (2)
Tabs for selecting the sensor.
Note: In remote-control commands, select the sensor with the suffix in command
SENSe<[1]..4>:...
, i.e. choose suffix
1
for channel A, channel
2
for B, and so on.
Delay ← Trigger dialog box (2)
Sets the trigger delay. Setting a positive value delays the effect of the trigger event
until the set time has elapsed. Entering negative values allows pretriggering (limited to
a few milliseconds, depending on the sensor).
Modifications of the trigger delay are immediately effective (see chapter 3.5, "Dialog
boxes and their controls" , on page 53).
Tip: Entering a correct value for the trigger delay is absolutely essential for accurate
measurements in the "T'Slot Av" mode. For this reason, the setting should always be
checked in the "Trace & Statistics mode" (timeslot display mode).
Remote command:
TRIGger:ALL:DELay
on page 331
Dropout ← Trigger dialog box (2)
Sets the dropout time. The dropout time prevents the trigger system from being activa-
ted by signal excursions prior to the trigger event targeted. The parameter is set to a
value that is slightly higher than the maximum duration of power drops that are sup-
posed to execute triggering.
In contrast to the "Holdoff" parameter which is referenced to the active slope (trigger
event), the dropout time takes effect if the passive slope of the trigger signal crosses
the trigger threshold.
Remote command:
TRIGger:ALL:DTIMe
on page 332
Page ← Trigger dialog box (2)
Switches to the next page of the dialog box.
Trigger dialog box (3)
The third page of the trigger dialog box covers the hysteresis and holdoff parameters.
Data acquisition and parameters
北京海洋兴业科技股份有限公司（证券代码：839145） 电话：010-62176775 网址：www.hyxyyq.com