FIELD: radio-engineering.
SUBSTANCE: invention relates to radio-engineering, particularly to appliances designed to prevent or reveal unauthorised use vehicles or carjacking. Proposed method comprises a continuous monitoring of interference conditions nearby guarded object. In case there is a side radiation, its parametres are compared to tolerable parametres and effects of the former on main signal transmission channel are estimated. If there is a risk of communication failure, signal is generated to warn about revealed possibility of main signal transmission channel suppression. Warning signal is transmitted via main signal transmission channel till complete failure of the said channel, or via backup channel. At the same time signal is transmitted to automatic response means.
EFFECT: prevention of carjacking.
2 cl, 1 dwg
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