Reference
90 TDS1000/2000-Series Digital Oscilloscope User Manual
Horizontal
You can use the horizontal controls to change the horizontal scale
and position of waveforms. The horizontal positionreadout shows
the time represented bythe center of the screen, using the time of the
trigger as zero. Changing the horizontal scale causes the waveform t o
expand or contract around the screen c enter.
Options Settings Comments
Main The main horizontal timebase setting is
used to display the waveform
Window
Zone
Two cursorsdefine a window zone
Adjust the Window Zone with the Horizon-
tal Position and SEC/DIV controls
Window Changes the display to show the wave-
form segment (expanded to screenw idth)
within the window zone
Trig knob Level*
Holdoff
Selects whether the Trigger Levelknob
adjusts the trigger level(volts) or holdoff
time (sec)
The holdoff value isdisplayed
* For video trigger with sync on a line number, the USER SELECT
(alternative function) knob switches between setting a line
number and Trigger Level.