virtual PPI reflectoscope


Also found in: Acronyms.

virtual PPI reflectoscope

[′vər·chə·wəl ¦pē¦pē′ī ri′flek·tə‚skōp]
(engineering)
A device for superimposing a virtual image of a chart on a plan position indicator (PPI) pattern; the chart is usually prepared with white lines on a black background to the scale of the plan position indicator range scale.
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