Bomb Law Reporter - special edition
Faustine
a3495 at cotse.com
Mon Aug 20 12:31:48 PDT 2001
Eugene wrote:
> and switching to an emission poor system (chucking CRT for LCD
> would do plenty for starters)
Actually, that won't help you much: emissions from LCD screens can be
easier to decode than those from monitors. Active matrix LCD screens create
very strong and clear emissions--as long as a display uses some form of
pixel sweep where each pixel is activated at a unique time, then the
emissions are simple to decode. Though in theory LCD screens emit less than
a VDU, recent EMC controls have greatly reduced emanations from VDUs--with
the result that the graphics card will often be the greatest source of
compromise.
Hope that helps!
~Faustine.
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