R&S ESCI Receiver – TRIGGER
1166.6004.12 4.53 E-2
Triggering the Scan– TRIG Key
The TRIG key opens a menu for selection of the trigger sources and the trigger polarity. The active
trigger mode is indicated by highlighting the corresponding softkey.
To indicate that a trigger mode other than FREE RUN has been set, the enhancement label TRG is
displayed on the screen. If two windows are displayed, TRG appears next to the appropriate window.
TRIGGER menu
FREE RUN
EXTERN
POLARITY
POS NEG
TRIG
VIDEO
FREE RUN
The FREE RUN softkey activates the free-run sweep mode, i.e. start of a
scan is not triggered. Once a measurement is completed, another is started
immediately.
FREE RUN is the default setting of R&S ESCI.
IEC/IEEE-bus command: TRIG:SOUR IMM
EXTERN
The VIDEO softkey activates triggering via the displayed voltage.
For the video triggering mode, a level line showing the trigger threshold is
displayed. Using the level line, the threshold can be adjusted between 0 %
...100 % of the diagram height.
IEC/IEEE-bus command: TRIG:SOUR EXT
SWE:EGAT:SOUR EXT
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