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Chapter 6 Trigger System
103
Falling edge
Set signal trigger on the falling edge
Dual edge
Set signal trigger on either rising edge or falling edge
Coupling
DC
AC and DC components getting through trigger signals
AC
Filter out the DC component of trigger signals
HF rejection
Suppress signals above 50KHz in trigger signals
LF rejection
Suppresses signals below 50KHz in trigger signals
Noise rejection
Low-sensitivity DC coupling to suppress high-frequency noise
in trigger signals
Set CH1 rising edge trigger and coupling as DC with operation steps as follows:
1) Tap “Trigger” on the main menu to open the trigger menu, select edge trigger in the trigger type, and set edge
trigger as follows, as shown in Figure 6-11:
Trigger source: CH1;
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