FIELD: car alarm systems. SUBSTANCE: receiver, transmitter and processor for storing coded information are mounted on car. Low-power stationary transmitters are installed in the streets. These low-power transmitters can radiate individual coded signal specific for each transmitter. Transmitter operating in cellular radio communication area is used as transmitter of car. Processor is programmed to detect in turn individual code of each stationary transmitter and transmit it together with coded information concerning the car through cellular transmitter to computer of tracking system. EFFECT: simplified tracking system at reduction of its cost and increase of reliability. 2 cl
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