Oscilloscope, Digital: 500MHz,2GSa/s,4ch (Stand alone)
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Tektronix TDS540C
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Tektronix TDS540C Oscilloscope, Digital: 500MHz,2GSa/s,4ch (Stand alone)
Data sheet (PDF)
The Tektronix TDS540C oscilloscope is a graph-displaying device – it draws a graph of an electrical signal. In most applications, the graph shows how signals change over time: the vertical (Y) axis represents voltage and the horizontal (X) axis represents time. The intensity or brightness of the display is sometimes called the Z axis.
The Tektronix TDS540C oscilloscope's simple graph can tell you many things about a signal, such as: the time and voltage values of a signal, the frequency of an oscillating signal, the “moving parts” of a circuit represented by the signal, the frequency with which a particular portion of the signal is occurring relative to, other portions, whether or not a malfunctioning component is distorting the signal, how much of a signal is direct current (DC) or alternating current (AC) and how much of the signal is noise and whether the noise is changing with time.