Glossary
absolute amplitude accuracy
The degree of correctness or uncertainty (expressed in either volts or dB power). It includes relative uncertainties plus calibrator uncertainty. For improved accuracy, some analyzers specify frequency response relative to the calibrator as well as relative to the midpoint between
active function readout
The area of a display screen where the active function and its state are displayed. The active function is the one that was completed by the last key selection or
active marker
The marker on a trace that can be repositioned by
active trace
The trace (commonly A, B, or C) that is being swept (updated) with incoming signal information.
adjacent channel power
The measure of transmitter signal leakage into adjacent channels. The measured value is usually expressed as the ratio of the power in the adjacent channel to the channel power.
amplitude accuracy
The general uncertainty of an analyzer amplitude measurement, whether relative or absolute.
analog + display mode
A display mode of the HP 8590 Series analyzers that digitally simulates an analog display. The analyzer takes several samples of the signal amplitude at each horizontal point as it sweeps across the screen. The samples are displayed as individual dots on the screen that are not connected. This