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The Display Menu
Mode Field
Mode Field
The Mode field determines how waveform information is acquired and
displayed. When you touch the Mode field, a pop-up menu appears. You can
select Normal, Average, or Accumulate from the pop-up. The default
selection for the Mode field is Normal.
Normal Mode
In Normal mode, the oscilloscope acquires waveform data and displays the
waveform acquired from that data. When the oscilloscope makes a new
acquisition, it erases the previously acquired waveform from the display, and
displays the newly acquired waveform. This is an on-going process for as
long as the oscilloscope is running repetitively, or whenever you make a
single mode run. That is; acquire data, erase display, display new data,
acquire data, erase display, display new data, etc.
Average Mode
In Average mode, the oscilloscope averages the most recently acquired data
points on a waveform with previously acquired data. Averaging helps
eliminate random noise from your displayed waveforms.
When you select Average mode, a new field appears next to the Mode field
which allows you to select the number of waveform acquisitions to average.
When you touch the Average # field, the field will turn a light-blue color.
When the field is light blue, you can change the number in the field by
turning the knob. The number of averages can be set to 2, 4, 8, 16, 32, 64,
128, or 256. The default value for the Average # field is 8.
You can also change the value in the Average # field with the pop-up keypad.
The keypad appears when you touch the Average # field when that field is
light blue. The numbers you can enter are the same as with the knob (any
power of two from 2 to 256). Any value entered from the keypad that is not
a power of two will be rounded to the nearest power of two (from the
choices available).
7-4
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