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Grass Valley Dictionary Grass Valley Dictionary

Dictionary of Technical Terms - Z

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Z

Z

Impedance.

Z-axis

The Z axis is in the third dimension, perpendicular to the X and Y axes and indicates depth. See axis.

zero dispersion point

In telecommunications, the wavelength where material dispersion is minimal. With standard fiber optic cable, that wavelength is 1310 nanometers.

zero suppression

In telecommunications, techniques that limit the number of consecutive data 0's that may be transmitted. For DS1 without B8ZS, fifteen data 0's are the maximum allowed.

zero timing point

The point at which all the video signals must be in synchronization (typically the switcher input).

zero-crossing of subcarrier

The zero voltage point of subcarrier (the point where the waveform passes through zero volts).
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