A display technology
where digitized trace information, stored
in memory, is displayed on an instrument’s
screen. The displayed trace is a series of
points designed to present a continuouslooking
trace. While the default number of
display points varies between different models,
most modern spectrum analyzers allow
the user to choose the desired resolution by
controlling the number of points displayed.
The display is refreshed (rewritten from data
in memory) at a flicker-free rate; the data
in memory is updated at the sweep rate.
Nearly all modern spectrum analyzers have
digital flat-panel LCD displays, rather than
CRT-based analog displays that were used in
earlier analyzers