Glossary
TDS 200-Series Digital Oscilloscope User Manual
113
Scan Mode
An acquisition mode useful at slow horizontal scale settings.
Scan mode allows you to view the waveform as it is acquired
point-by-point. The waveform appears from left to right across
the display.
Time Base
The period of time that corresponds to one horizontal division
on the screen (one tenth of the waveform record) set with the
SEC/DIV control. See also Sample Interval.
Time Cursors
The two vertical bars you position to measure the time
parameter of a waveform record. The oscilloscope displays the
value of each cursor with respect to trigger and the time value
between the bars, expressed in seconds and in the reciprocal of
seconds (Hertz).
Video Trigger
Triggering on the sync pulse of a composite video signal.
XY Format
A display format that compares the voltage level of two
waveform records point by point. It is useful for studying phase
relationships between two waveforms.
YT Format
The conventional oscilloscope display format. It shows the
voltage of a waveform record (on the vertical axis) as it varies
over time (on the horizontal axis).
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