Alan Horowitz <alanh@infi.net> writes:
Visual contrast is not the same thing as frequency diffrence. It is quite easy to measure extremely small changes of phase.
Apropos of *what*?! If it was an NTSC colour TV; yes, you could measure the colour by the phase of the 3.579 colour burst. But modern computer monitors (i.e. VGA) don't represent colour that way at all -- they use separate red, green, and blue video signals. And the original poster is correct -- it is extremely difficult to determine which guns are generating any given pixel, using van Eck monitoring. The only com/mil ELINT demo I've ever seen of a VGA monitor generated a greyscale display.
Nice try, but no cigar.
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