Z

Zero Span

An operating mode of the analyzer where the frequency span is zero. This corresponds to a level measurement at a fixed frequency (receiver mode) and hence a time domain display of the (filtered) input signal. Source: Willtek Communications, Inc.



Zeros

Values that make the transfer function zero. Factor in the numerator of the transfer function polynomial. Source: Frequency Devices, Inc.



Zoom

A lens system that provides for variable magnification capability while keeping the specimen in focus. Source: FRT of America



Zulu Time

Synonymous with Greenwich Meridian Time, a time designation used in satellite systems. Source: Wireless Week


