The Tektronix TDS754A 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 TDS754A 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.

This unit comes with:

• Opt. 13 - Add RS-232-C and Centronics interface ports
• Opt. 1F - Floppy Disk Drive
• Opt. 2F - Advanced DSP Math
• Opt. 1M - Extend record length to 500 000 samples on one channel 250 000 on two channels and 130 000 samples on three or four channel

Additional specifications available upon request."