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1 Information Weapon: Concepts, Means, Methods …
Fig. 1.15 Structure of the technical channel of information leakage resulting from the CE stray
electromagnetic radiation (electromagnetic channel of information leakage)
R2 area for each CE is determined by the instrumental and calculation method
when conducting special SER studies using computer technology and is specified in
the operation manual or the certificate of conformity.
Thus, for the emergence of an electromagnetic channel of information leakage,
two conditions shall be met (Fig. 1.15):
• The first—distance from the CE to the controlled area boundary should be less
than the area itself R2 R < R2;
• The second—possibility to place stationary or transported (portable) SERP
intelligence equipment within the risk area R2.
Electric Channels of Information Leakage
The reasons for the emergence of electric channels of information leakage are pickup
of informative signals, i.e., currents and voltages in conductive elements caused by
stray electromagnetic radiation, capacitive, and inductive couplings.
Pickup of informative signals may occur as follows:
• In IPE power supply lines;
• In AES power supply and connecting lines;
• In IPE and AES ground lines;
• In external conductors (metal pipes of heating and water supply systems, metal
structures, etc.).
Depending on the causes of appearance, pickup of informative signals can be
divided into [20, 22, 23]:
(a) Pickup of informative signals in IPE electrical circuits, caused by IPE informative stray and/or parasitic electromagnetic radiation;