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• In 4-channel mode, the memory depths available include Auto, 1 Kpts, 10 Kpts,
100 Kpts, 1 Mpts, 10 Mpts, 25 Mpts, 50 Mpts, 100 Mpts, and 125 Mpts.
NOTE
In "Auto" mode, the oscilloscope selects the memory depth automatically according to the
current sample rate.
7.7 LA Memory Depth
Press > More to view the memory depth of the current digital channel under
LA Mem Depth. The LA memory depth will change with the memory depth of the
analog channel, and cannot be set separately. The maximum LA memory depth is
62.5 Mpts.
7.8 Anti-Aliasing
At a slower sweep speed, the sample rate is reduced, and a dedicated display
algorithm can be used to minimize the possibility of aliasing.
Press > Anti-Aliasing to enable or disable the anti-aliasing function. By default,
anti-aliasing is disabled. In this case, it is more likely to generate waveform aliasing.
NOTE
This function should be enabled when the horizontal time base has a large deviation from the
period of the signal under test (e.g. when the horizontal time base is greater than five-fold the
period of the signal under test).
7.9 Horizontal Expansion
Horizontal expansion indicates the reference position that the screen waveform is
referenced to when it is horizontally expanded or compressed in adjusting the
Horizontal SCALE knob. In YT mode, press > More > Expand, then rotate
the multifunction knob to switch to the desired memory depth, and then press
down the knob to select the option. You can also press the Expand key continuously
or use the touch screen to select the desired reference. The horizontal expansion
reference supported by the oscilloscope includes Center, Left, Right, Trigger, and User.
The default is "Center".
• Center: when the horizontal time base is modified, the waveform will be
expanded or compressed horizontally relative to the screen center.
To Set the Sample System
74
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