Glossary
THS710A, THS720A, THS730A & THS720P User Manual
Glossary–5
Ground (GND) Coupling
Coupling option that disconnects the input signal from the
vertical system.
Hard Copy
An electronic copy of the display in a format useable by a
printer or plotter.
Harmonics
Voltage or current waveforms having frequencies that are
integer multiples of the base (fundamental) frequency. A
periodic waveform can be described as the sum of its fundamen-
tal frequency and the harmonics.
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.
Isolated Channels
The architecture of the oscilloscope and DMM inputs that allow
independent floating measurements. Each input can have a
different reference voltage.
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