Glossary
TDS3000 Series User Manual
Glossary–5
Ground (GND) Coupling
Coupling option that disconnects the input signal from the
vertical system.
Ground Lead
The reference lead for an oscilloscope probe.
Ground Wire
A wire that must be connected between the ground terminal and
earth ground when using the oscilloscope with battery power.
Hard Copy
An electronic copy of the display in a format useable by a
printer or plotter.
Holdoff
A specified amount of time that must elapse after a trigger
signal before the trigger circuit will accept another trigger
signal. Holdoff helps ensure a stable display.
Horizontal Bar Cursors
The two horizontal bars that you position to measure the voltage
parameters of a waveform. The oscilloscope displays the value
of the active (moveable) cursor with respect to ground and the
voltage value between the bars.
Menu
A set of labels shown in the display to identify the functions of
the bezel buttons. The specific menu contents depend on the
menu button you press.
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