Keysight Technologies Infiniium MXR Series, User Manual

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36 Keysight Infiniium MXR-Series Real-Time Oscilloscopes User's Guide
2
Getting Started
• To adjust the horizontal scale using the controls in the horizontal toolbar,
mouse over or touch the horizontal scale field and use the resulting controls to
set a particular horizontal scale. Click the scale field to enter an exact value, or
click the "narrower" or "wider" buttons.
Adjusting the horizontal trigger position (delay)
• The horizontal position knob is the smaller of the two horizontal control knobs.
Turn the knob to move the waveform to the right or left.
• Moving the waveform to the right shows more of the pre-trigger data (data
acquired before the trigger event). Moving it to the left shows more post-trigger
data.
• When you drag a waveform, the horizontal position will change for all channels
and functions on the display. Waveform memories will also move if you select
the Tie to Timebase box in the Waveform Memories dialog box.
• To adjust the horizontal position using the controls in the horizontal toolbar,
mouse over or touch the horizontal position field and use the resulting controls
to set a particular horizontal position (time relative to the trigger at the
highlighted horizontal reference point).
Magnifying a part of the waveform using Zoom
• To turn on zoom, press the key or click the Zoom button .
The waveform display area splits into two regions. The top one is the main
timebase. The bottom is the zoomed timebase, which represents an expansion
of the acquired waveform data. A section of the waveform in the main timebase
window is highlighted to indicate the part shown in the zoomed timebase
window.
The horizontal scale and position controls now change how the waveform is
shown in the zoomed timebase window. The horizontal scale will change the
amount of magnification, while the position will change the part of the
waveform in the main window that is shown in the zoomed window.
• To turn off zoom, press or click again.
NOTE
Avoid Overdriving Vertical Input Amplifiers
When zooming on a waveform with the oscilloscope running, be careful to keep the signal
within the screen vertically to avoid overdriving the vertical input amplifiers. Overdriving
causes waveform distortion and erroneous measurement results.
"ADC clipping" indicators appear when a signal exceeds the input voltage range of the ADC.
These indicators can sometimes appear when a signal appears to be within the vertical range
of the screen due to DSP filtering, but it really is not.