A wireless transceiving system capable of processing multi-channel broadcast signals and Ethernet signals from an Ethernet PON (Passive Optical Network), the wireless transceiving system includes a wireless STB (Set-top Box) transmitter for wirelessly transmitting broadcast signals which are multi-channel image signals and Ethernet signals; and at least one wireless STB receiver for receiving the broadcast signals and the Ethernet signals transmitted from the wireless STB transmitter to output image signals and audio signals corresponding to the received broadcast signals, and to support an Ethernet port based on the received Ethernet signals.