Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

Receiver - Scan Control
ESIB
Triggering a Level Measurement – TRIGGER Key
SWEEP TRIGGER menu
SWEEP
TRIGGER
SWEEP/
SCAN
RBW
VBW
SWT
COUPLING/
RUN
TRIGGER
FREE RUN
EXTERN
The TRIGGER key opens a menu for selecting the various
trigger sources and the trigger polarity. The active trigger
mode is indicated by illumination of the corresponding
softkey.
The FREE RUN and EXTERN softkeys are selection
switches. Only one key can be enabled at any one time
(illuminated).
If triggering has taken place, the trigger LED is turned on and
then turned off at the end of level measurement.
To indicate that the ESIB is set for triggering (= not free run),
the enhancement label TRG is displayed on the screen.
SLOPE
POS NEG
FREE RUN
The FREE RUN softkey activates the free-run level measurement (default
setting).
With free-run level measurement selected, the start of a scan is not explicitly
triggered. Once a measurement is completed, another is started immediately.
IEC\IEEE bus command
:TRIGger[:SEQuence]:SOURce IMMediate
EXTERN The EXTERN softkey activates triggering by an external voltage
(-5V to +5V) at the input connector EXT TRIGGER/GATE on the rear panel.
The trigger threshold can be set in an entry window within this range.
IEC\IEEE bus command
:TRIGger[:SEQuence]:SOURce EXTernal
:TRIGger[:SEQuence]:LEVel 2.5V
SLOPE
POS NEG
The SLOPE POS/NEG softkey selects the trigger slope.
The measurement starts after a positive or negative trigger signal edge. The
selected setting is illuminated. The selection is valid for all trigger modes with
the exception of FREE RUN.
The default mode is SLOPE POS.
IEC\IEEE bus command
:TRIGger[:SEQuence]:SLOPe POS |NEG
1088.7531.12 4.154 E-15