Figure 3-12 Horizontal Control Zone
1. Turn the Horizontal Scale knob to change the horizontal time base setting and
observe the consequent status information change. Turn the Horizontal Scale knob to
change the horizontal time base, and it can be found that the Horizontal Time Base
display in the status bar changes accordingly.
2. Use the Horizontal Position knob to adjust the horizontal position of the signal in the
waveform window. The Horizontal Position knob is used to control the triggering
displacement of the signal or for other special applications. If it is applied to
triggering the displacement, it can be observed that the waveform moves horizontally
with the knob when you rotate the Horizontal Position knob.
Triggering displacement back to 0 shortcut key
Turn the Horizontal Position knob to change the horizontal position of channel and
push the Horizontal Position knob to set the triggering displacement back to 0 as a
shortcut key.
3. Push the Horizontal HOR button to switch between the normal mode and the wave
zoom mode.
Introduction to the Trigger System
As shown in Figure 3-13, there are one knob and three buttons make up Trigger Controls.
The following practices will direct you to be familiar with the setting of the trigger system
gradually.
Figure 3-13 Trigger Control Zone
1. Push the Trigger Menu button and call out the trigger menu. With the operations of
the menu selection buttons, the trigger setting can be changed.
2. Use the Trigger Level knob to change the trigger level setting.
By turning the Trigger Level knob, the trigger indicator in the screen will move up
and down. With the movement of the trigger indicator, it can be observed that the
trigger level value displayed in the screen changes accordingly.
Note: Turning the Trigger Level knob can change trigger level value and it is also
the hotkey to set trigger level as the vertical mid point values of the amplitude of the
trigger signal.
3. Push the Force button to force a trigger signal, which is mainly applied to the
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