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BEAM FIND
Figure 3-5: Beam Find
if the beam appears to be stuck on some portion of the display, check the
trigger mode settings. Setting the trigger mode to P-P AUTO wiil give you a
sweep in the absence of a trigger signal. Also check to be sure the X-Y
button is not pushed in and the seconds/division is not set too fast or too
slow for the signal you are trying to display.
f “1 Step 4: Adjust the horizontal and vertical position control(s) to center
the signai display within the compressed area and then release the
BEAM FIND button.
□ Step 5: Adjust the INTENSITY control to a normal level and adjust the
vertical and horizontal scale with the VOLTS/DiV and SEC/DIV controls.
If you fail to locate the sweep using this procedure you may want to use the
basic analog setup given in the Start Up, page 1-4 and try reapplying the
signal to the input.
Digitizing Signals
There are four different acquisition modes to choose from when you digitize
a signal in the STORE mode:
• Accumulate Peak mode finds the highest and lowest record points over
many acquisitions. It reveals variations in the signal over time.
■ Average mode calculates the average value for each record point over
many acquisitions. It reduces apparent noise in a repetitive signal.
■ Sample mode records the first sample in every acquisition interval and
presents more of a “real-time" view of the signal.
3-8
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