Glossary
Glossary–8
THS710A, THS720A, THS730A & THS720P User Manual
Roll Mode
An acquisition mode useful at slow horizontal scale settings.
Roll mode allows you to view the waveform as it is acquired
point-by-point. The waveform appears to roll across the display.
RS-232
The serial communication port used to connect to a hard-copy
device, computer, controller, or terminal.
Sample Acquisition Mode
A mode in which the oscilloscope creates a record point by
saving the first sample during each acquisition interval. This is
the default mode of the acquisition system.
Sample Interval
The time interval between successive samples in a time base.
For real-time digitizers, the sample interval is the reciprocal of
the sample rate.
Sampling
The process of capturing an analog input, such as a voltage, at a
discrete point in time and holding it constant so that it can be
quantized.
Selected Waveform
The waveform on which all measurements are performed and
which is affected by vertical position and scale adjustments.
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