R&S NRP2, Руководство пользователя

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Instrument Functions
R&S
®
NRP2
87 User Manual 1173.9157.02 ─ 03
"Negative"
The falling edge of the trigger signal is active.
SCPI command:
​
TRIGger<[1]..4>:
​
SLOPe
​
on page 330
Level
Sets the trigger threshold for internal triggering. Depending on the slope polarity, a rising
or a falling edge will execute a trigger event when crossing the threshold. Modifications
of the level are immediately effective (see
​
chapter 3.5, "Dialog boxes and their con-
trols" , on page 53).
SCPI command:
​
TRIGger:
​
ALL:
​
LEVel
​
on page 330
Page
Switches to the next page of the dialog box.
Trigger dialog box (2)
The second page covers the parameters for defining a trigger delay and a dropout time
to prevent accidental triggering.
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).
SCPI command:
​
TRIGger:
​
ALL:
​
DELay
​
on page 328
Data acquisition and parameters