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detector mode
The manner in which analog, video information is processed prior to
being digitized and stored in memory. Refer also to negative peak,
positive peak, quasi-peak detector, rose-n-fell, and sample.
digital display
A display that uses vectors drawn between a series of data points (analog
video) that are first digitized and stored in memory, then displayed. The
number of stored data points is a function of the particular analyzer. The
displayed information is refreshed (old data points are replaced with new
data points stored in memory) at a flicker-free rate. The data in memory
is updated at the sweep rate of the analyzer.
display dynamic range
The maximum dynamic range over which both the larger and smaller
signal can be viewed simultaneously on the display. For analyzers with a
maximum logarithmic display of 10 dB/division, the actual dynamic range
may be greater than the display dynamic range. Refer also to dynamic
range.
display fidelity
The measurement uncertainty of relative differences in amplitude on an
analyzer. On purely analog analyzers (those analyzers that display trace
information immediately and do not store, then recall the data to the
screen), these differences are displayed on the screen and the graticule is
used to evaluate the measurement. Many analyzers with digital displays
(refer to digital display) have markers that can be used to measure the
signal. As a result, measurement differences are stored in memory, and
the ambiguity of the display is eliminated from the measurement.
display range
The calibrated range of the display for a particular display mode or scale
factor. Refer also to linear display, log display, and scale factor.
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