Agilent Technologies X Series Manual page 577

Initial S/W Revision
Trigger Level
Sets a level for the video signal trigger. When the video signal crosses this level, with the chosen slope,
the trigger occurs. This level is displayed with a horizontal line only if Video is the selected trigger
source.
Key Path
Remote Command
Example
Notes
Couplings
Preset
State Saved
Min
Max
Default Unit
Backwards Compatibility SCPI
Backwards Compatibility SCPI
Initial S/W Revision
Prior to A.02.00
Trigger, Video
:TRIGger[:SEQuence]:VIDeo:LEVel <ampl>
:TRIGger[:SEQuence]:VIDeo:LEVel?
TRIG:VID:LEV –40 dBm
When sweep type = FFT, the video trigger uses the amplitude envelope in a
bandwidth wider than the FFT width as a trigger source. This might often be
useful, but does not have the same relationship between the displayed trace
and the trigger level as in swept triggering.
Amplitude Corrections are not taken into account by the Video Trig Level. For
example, if you have given yourself effective gain with an amplitude
correction factor, the Video Trigger will not fire until you have dropped the
trigger line that far below the displayed signal level, rather than simply
dropping it down to the displayed signal level.
Note that other corrections, specifically External Gain and Ref Level Offset,
modify the actual trace data as it is taken and therefore ARE taken into
account by Trig Level.
This same level is used for the Video trigger source in the Trigger menu and
for the Video selection in the Gate Source menu.
Set the Video Trigger Level –25 dBm on Preset. When the Video Trigger
Level becomes the active function, if the value is off screen, set it to either the
top or bottom of screen, depending on which direction off screen it was.
Saved in instrument state
–170 dBm
+30 dBm
depends on the current selected Y axis unit
:TRIGger[:SEQuence]:IF:LEVel
:TRIGger[:SEQuence]:IF:LEVel?
For backward compatibility with VSA/PSA comms apps, we need this alias.
Prior to A.02.00
Trigger
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