Basic Principle
Information that drives the video display takes the form of high frequency electrical signals. These oscillating electric currents create electromagnetic radiation in the RF range. These radio emissions are correlated to the video image being displayed, so, in theory, they can be used to recover the displayed image.
Read more about this topic: Van Eck Phreaking
Famous quotes containing the words basic and/or principle:
“Unlike femininity, relaxed masculinity is at bottom empty, a limp nullity. While the female body is full of internal potentiality, the male is internally barren.... Manhood at the most basic level can be validated and expressed only in action.”
—George Gilder (b. 1939)
“The principle of subordination is the great bond of union and harmony through the universe.”
—Catherine E. Beecher (1800–1878)