Mode Field; Immediate Trigger Mode - HP 1652B Getting Started Manual

Trigger Point
Marker
The trigger point marker, is the dotted vertical line at the center of the
waveform display. This dotted vertical line, points to the place on the
waveform where the trigger source waveform or trigger condition
intersects. This point of intersection is where timebase delay is
referenced. This point represents a delay time of zero seconds. See
figure 24-2.
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If delay time is set to greater than 5 times the sweep speed, the trigger
marker will be moved off screen.
[Scopej- Trigger
Ilode [ Edge 1 Source
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Level
[1.620 Slope f-E?Ez-J Cluto-Trig [onJ
s/Dtv pcKq Delay
I
Wmed by [j
CH m'
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t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .fi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
; Trigger level
Figure 24-2. Trigger Point
Mode Field
Immediate
Trigger Mode
The Mode field is located on the left side of the top row of fields and
selects the trigger mode for the oscilloscope. When you select the
Mode field, it will toggle between Edge and Immediate.
The default selection for the Mode field is Edge.
Immediate trigger mode causes the oscilloscope to trigger by itself after
the arming requirements are met. This can be used when a logic
analyzer arms the scope or another instrument arms the scope via the
BNC connector. The default Immediate trigger menu is shown in
figure 243.
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Trigger Menu
HP 16528/1653B
24-2
Front-Panel Reference