vector display
The display type where the electron beam is directed so the image (consisting of trace, graticule, and annotation) is written directly onto the display face. It is not created from a series of dots as with the raster display.
video
A term describing the output of an analyzer’s envelope detector. The frequency range extends from 0 Hz to a frequency that is typically well beyond the widest resolution bandwidth available in the analyzer. However, the ultimate bandwidth of the video chain is determined by the setting of the video hlter.
video amplifier
A
video average
The digital averaging of analyzer trace information. It is available only on analyzers with digital displays. Each point on the display is averaged independently and the average is computed based on the number of sweeps selected by the user. The averaging algorithm applies a factor to the amplitude value of a given point on the current sweep (l/n, where n is the number of the current sweep); applies another factor to the previously stored average [(n - l/n)]; and combines the two for a current average. After the designated number of sweeps are completed, the factors remain constant, and the display becomes a running average.
video bandwidth
The