Filter
Top Products
1349
Trigger
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.
Trig Slope
Controls the trigger polarity. It is set positive to trigger on a rising edge and negative to trigger on a
Key Path: Trigger, Video
Remote Command: :TRIGger[:SEQuence]:VIDeo:LEVel <ampl>
:TRIGger[:SEQuence]:VIDeo:LEVel?
Example: TRIG:VID:LEV –40 dBm
Notes: 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.
Couplings: This same level is used for the Video trigger source in the Trigger menu and
for the Video selection in the Gate Source menu.
Preset: 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.
State Saved: Saved in instrument state
Min: –170 dBm
Max: +30 dBm
Default Unit: Depends on the current selected Y axis unit
Backwards Compatibility SCPI: :TRIGger[:SEQuence]:IF:LEVel
:TRIGger[:SEQuence]:IF:LEVel?
Backwards Compatibility Notes: This alias is provided for backward compatibility with VSA/PSA comms
apps.
Initial S/W Revision: Prior to A.02.00