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Cell phone jammer

12.03.2001

Israeli firm "Netline Communications" produces a device that silences cell phones where annoying calls and constant conversations can interfere with others.

About half a billion mobile phones are now used in the world, and this is already becoming noticeable in theaters, cinemas, concert halls, at meetings, in hospital wards and in other places where talking on the phone was until recently not only not accepted, but simply impossible. . A portable device the size of a thin book disrupts the interaction of a pocket phone and the nearest base station with its signals.

The radius of action - 15 meters - covers a large auditorium. The device costs $200, is powered by both mains and batteries, so its owner can set a zone of silence around him, for example, in a train car or on the beach. The larger, $2800 fixed version disables phones within an 80-meter radius.

These devices are ordered by educational institutions, theaters, restaurants, hospitals, libraries, museums and even prisons - in case prisoners have mobile phones.

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