User Manual

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7.1.7 Glossary
AC/DC Control
Each channel can be set to either AC coupling or DC coupling. With DC coupling,
the voltage displayed onscreen is equal to the true voltage of the signal with respect
to ground. With AC coupling, any DC component of the signal is filtered out, leaving
only the variations in the signal for the AC component.
Aliasing
When the signal frequency gets higher than half the scope's maximum sampling rate
and exceeds the limit, a distorted waveform displays. This distortion is called aliasing.
Amplitude
The maximum voltage generated from the zero volts line of the oscilloscope.
Analog Bandwidth
The frequency at which a displayed sine wave has half the power of the input sine
wave (about 71% of the amplitude).
Buffer Size/Cache Size
The size of the oscilloscope's buffer memory. The buffer memory is used by the
oscilloscope to temporarily store data. This helps to compensate for the differences
in data transfer rate from one device to another.
Frequency
The number of signal occurrences per second. Frequency is measured in Hz (hertz).
Peak to peak voltage
The difference in voltage between the minimum and maximum voltages occurring in
the waveform.
Time Base
The time interval across the scope display.
Voltage Range
The range between the maximum and minimum voltages that can be accurately
captured by the oscilloscope.