Application Examples
Using the Zoom Function
to See Waveform Details
You can use the zoom function to examine a speci
fi
c portion of a waveform
without changing the main display.
If you want to view the color burst in the previous waveform in more detail
without changing the main display, follow these steps:
1.
Push the
Zoom
front-panel button.
When pressing the
Zoom
button, the waveform display area will show original
waveform (about ¼) and zoom in waveform (about ¾). And the menu area
will keep the original menu. If both channels are turned on at the same time,
there will be two zoom in waveforms at the top window.
2.
Push the
Scale
side-menu button and turn the
Multipurpose
knob to change
the zoom scale.
3.
Push the
Position
side-menu button and turn the
Multipurpose
knob to
change the zoom position.
4.
Turn the horizontal
Scale
(seconds/division) knob and select 500 ns. This will
be the seconds/division setting of the expanded view.
5.
Turn the
Horizontal Position
knob to position the zoom window around the
portion of the waveform that you want to expand.
Analyzing a Differential Communication Signal
You are having intermittent problems with a serial data communication link, and
you suspect poor signal quality. Set up the oscilloscope to show you a snapshot of
the serial data stream so you can verify the signal levels and transition times.
Because this is a differential signal, you use the Math function of the oscilloscope
to view a better representation of the waveform.
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