An Interactive Digital Data Broadcasting System comprises a plurality of digital data broadcasting transmitter systems (12) is disclosed. In a preferred embodiment, the transmitter (12) operate in the frequency bands 2,310-2,320 and 2,345-2,360 MHz (S-band), 902-928 MHz, 2,400-2,483.5 MHz or 5,725-5,825 MHz. The present invention also includes user terminal (14) capable of receiving a plurality of channels in the said frequency bands and capable of transmitting in one or more traditional wireless communications bands; a plurality of receiving systems (16) for transmission from a user terminal (14); and a network management center (18). A user terminal (14) comprises an antenna system (20) capable of receiving multiple channels of broadband data broadcast transmissions in said frequency bands 2,310-2,320 and 2,345-2,360 MHz, 902-928 MHz, 2,400-2,483.5 MHz or 5,725-5,825 MHz (22) and transmitting on any traditional wireless communications technology (24) or via the transmitted band; a receiver (26); digital signal processing (28); a user interface (30); a transmitter operating in a traditional wireless communications system band (32); and a software operating system (34) to control the functions of the user terminal (14).
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