A system for wirelessly communicating from a high speed data modem using a first radio transceiver at a first location and a second radio transceiver at a second location preferably includes: (i) a housing (containing the data modem, the first radio transceiver, a radio processor, and a power supply) connected to an outdoor supporting structure, which supports a coaxial cable carrying an RF signal and AC power; (ii) a splitter to split the RF signal from the AC power, wherein the radio processor sends a digital signal to the first radio transceiver, which sends the signal to a first antenna, and wherein the signal is provided from the first antenna to a second antenna coupled to the second radio transceiver at a user device, wherein the system communicates the signal from the second antenna to the second radio transceiver and then to a second radio processor coupled to the user device; and wherein the DC power is provided to the data modem, the first radio transceiver, and the radio processor.