FIELD: method of antitheft protection of vehicles, boats, taxis, etc. SUBSTANCE: device employs for its operation a signal transmitted by concealed radio transmitter installed on vehicle under protection and received by at least two receiving radio stations which take bearing of vehicle. Radio transmitter is set into operation only in case of unauthorized use of vehicle under protection. Radio signal consists of combination of modulated signal used for taking the bearing of vehicle and coded signal carrying coded information on particulars of vehicle under protection. EFFECT: enhanced reliability of protection. 2 cl
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Authors
Dates
1995-03-27—Published
1992-03-24—Filed