Agilent Technologies 41A, 54621D, 24A, 42A Press the qualifier softkey to select the time qualifier

Triggering the Oscilloscope

To use Pulse Width triggering

3Press the pulse polarity softkey to select positive ( )or negative () polarity for the pulse width you want to capture.

The selected pulse polarity is displayed in the upper-right corner of the display. A positive pulse is higher than the current trigger level or threshold and a negative pulse is lower than the current trigger level or threshold.

When triggering on a positive pulse, the trigger will occur on the high to low transition of the pulse if the qualifying condition is true. When triggering on a negative pulse, the trigger will occur on the low to high transition of the pulse if the qualifying condition is true.

4Press the qualifier softkey (< > ><) to select the time qualifier.

The Qualifier softkey can set the oscilloscope to trigger on a pulse width that is:

•less than a time value (<).

For example, for a positive pulse, if you set t<10 ns:

10 ns 10 ns

•greater than a time value (>).

For example, for a positive pulse, if you set t>10 ns:

Trigger

10 ns

10 ns

Trigger

•within a range of time values (><).

For example, for a positive pulse, if you set t>10 ns and t<15 ns:

10 ns

15 ns

12 ns

Trigger

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