High resolution
The high-resolution mode uses the full resolution of the waveform data to
give the best possible representation of the waveform on the display. The
high-resolution mode also makes the displayed waveforms look more analog.
For example, when averaging is turned on, the waveform data in memory
may have a greater vertical resolution than the display. The high-resolution
mode then uses a display technique that gives the display the appearance of
more vertical resolution than the display actually has.
When the data point lies between adjacent pixels, the oscilloscope lights up
both pixels, but varies the brightness of each pixel. The brightness of each
pixel is proportional to how close it is to the data point. Your eye is then
drawn to a point between the two pixels to the data point. However, this
increased vertical resolution does take microprocessor time, which slows
down the display update rate of the oscilloscope.
The high-resolution mode is not available when interpolation is turned on in
the real-time sampling mode, or when the mask test is running. The display
update rate would be reduced without improving the appearance of the
waveform on the display.
Display Menu
Draw Waveform
9–9
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