Field or control
Description
Mode & Holdoff
Trigger Mode determines how the instrument behaves in the absence or presence of a trigger event.
Holdoff sets the amount of time the oscilloscope waits after a trigger event before detecting and
triggering on the next trigger event.
For additional information on Trigger Mode, Holdoff, forcing a trigger, and the Trigger Frequency
Counter see
on page 226.
Act On Trigger
Set the actions the instrument takes when a trigger event occurs.
For additional information on the Act On Trigger panel see
on page 227.
Edge Trigger configuration menu
Use the Edge Trigger menu to trigger the oscilloscope when a signal rises and/or falls through a specified level.
To open the Edge trigger menu:
1. Double-tap the Trigger badge on the Settings bar.
2. Set the Trigger Type to Edge.
Settings panel (Edge Trigger configuration menu) fields and controls
Field or control
Description
Trigger Type
Set to Edge.
Source
Lists the source channel or waveform to use to trigger.
Coupling
Set the conditioning to apply to the source signal trigger circuit from the source signal.
DC coupling passes all input signals directly to the trigger circuitry.
AC coupling blocks the DC component and shows only the AC signal.
HF Reject coupling attenuates signals above 50 kHz before passing the signal to the trigger circuitry.
LF Reject coupling attenuates signals below 50 kHz before passing the signal to the trigger circuitry.
Noise Reject coupling provides stable triggering by increasing the trigger hysteresis. Increased
hysteresis reduces the trigger sensitivity to noise so may require greater signal amplitude.
Level
Sets the amplitude level that the signal must pass through to be considered a valid transition.
Set to 50%
Sets the threshold at 50% of the measured signal transition range. 50% is calculated as (Top +
Bottom)/2.
Table continued…
Menus and dialog boxes
3 Series Mixed Domain Oscilloscope Printable Help
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