6-25
coupling to the trigger circuits. This is useful when you wish to view only the LF or HF component of a
signal.
COMPONENTS USED TO SELECT SCOPE TRIGGERING
The TRIG MODE section in figure 6-28 allows for automatic triggering or normal triggering. In
AUTO (automatic), the triggering will be free-running in the absence of a proper trigger input or will
trigger on the input signal at frequencies above 20 hertz. In NORM (normal), the vertical channel input
will trigger the sweep.
Figure 6-28.Components to select triggering.
COMPONENTS USED TO SELECT HORIZONTAL-DEFLECTION MODE
For the present, notice only that the HORIZ DISPLAY (horizontal display) in figure 6-29 can be
controlled by the TIME/DIV switch. Other switches in this section will be explained later in this chapter.