The invention relates to a method and system for diffusing and obtaining information, from a transmitter device (1) to a receiver device (2), by means of beacon frame packets via modulated RF carriers. The transmitter device (1) for transmitting information is shared by an unlimited number of receiver devices (2) and comprises: processing equipment (10) for generating information; a Wi-Fi® modulator unit (12) and a transmission antenna (13) connected to the Wi-Fi® modulator unit (12). The receiver device (2) for receiving information from the transmitter device (1) comprises: a Wi-Fi® receiver unit (21) and an information reconstructor (20), for extracting information.
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