Tektronix MDO4000C Series, User Manual

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7. Push Delay on the lower menu to select On when you want to delay the
acquisition relative to the trigger event.
With Delay set to On , turn the Horizontal Position knob counterclockwise to
increase the delay. The trigger point will move to the left and ultimately outside
of the acquired waveform. Then you can adjust the
Horizontal Scale knob to
acquire more detail around the area of interest at the center of the screen.
When this delay is on, the trigger point separates from the horizontal expansion
point. The horizontal expansion point stays at the center of the screen. The trigger
point can move off the screen. When this happens, the trigger marker turns to
point in the direction of the trigger point.
Use the delay feature when you want to acquire waveform detail that is separated
from the trigger event by a significant interval of time. For example, you can
trigger on a sync pulse that occurs once every 10 ms and then look at high-speed
signal characteristics that occur 6 ms after the sync pulse.
When the delay feature is set to Off , the expansion point is tied to the trigger
point so that scale changes are centered around the trigger point.
Acquire the signal
MDO4000C Series Oscilloscope User Manual 45
Preliminary