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How Video Works by Marcus Weise, Diana Weynand

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CHAPTER 9

Analog Vectorscopes

The vectorscope is another type of oscilloscope used in measuring the video signal. Unlike the waveform monitor, which measures the luminance aspects of a video signal, a vectorscope is used to measure the hue.

The vectorscope, like the waveform monitor, is made up of a CRT, graticule, and knobs and buttons. The lines and markings on the graticule are used as the framework under which the chrominance of the signal is displayed for reference. The controls adjust the placement of the chrominance display pattern. Other vectorscopes may have controls in a different configuration, but the functions detailed in this chapter will be available on all models. To clearly introduce the concepts of a vectorscope, the Tektronix ...

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