# Glitch

The Glitch trigger mode triggers on narrow pulses in a waveform.

- Source — Select one of the analog input channels.

- Level — Enter the trigger threshold level in the field or use the increase, 50%, or decrease buttons. Other ways to set the trigger level include dragging the "T" trigger level indicator on the left side of a waveform content window or turning the front panel Trigger Level knob .

- Slope — Select positive or negative glitches.

- Time — Defines the maximum pulse width that is considered a glitch.