Acquire the Signal
10. Push the lower-bezel Height button repeatedly
to set the signal he ight. You only need to do
this once to set the height for all of the digital
channels.
Quick Tip
Use the zoom feature to see multiple cycles of the signal in t he upper part, and a single cycle in the lower part of the display.
(See page 198, Using Wave Inspector to Manage Long Record Length Waveforms.)
The lead for each digital channel has a color-coded band for easy identification. The ground leads are shorter and have
black wires.
Digital channe ls store a high or low state for each sample. The threshold that separates a high from a low can be set for all the
channels in GROUP 1 or in GROUP 2. The threshold can not be set for individual chan nels.
Reducing Unwanted Noise With FilterVu
YoucanuseFilterVutofilter unwanted noise from your signal and still capture glitches. The oscilloscope does this by superimpo sing
a filtered foreground waveform over a glitch capture background waveform.
The filtered waveform uses a variable low-pass filter to block out noise, yielding a cleaner waveform. When the noise filter
is adjusted to the minimum bandwidth setting, no more than 1% o f high-frequency content that co uld cause t he oscilloscope
to alias will pass th rough the filter.
116 DPO2000 and MSO2000 S eries Oscilloscopes User Manual
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