The present invention is a method and apparatus for operating a dual-mode radio (DMR) in a wireless communication system. The present invention provides "coexistence" or cooperation of Bluetooth and 802.11 devices operating in close proximity to each other within a DMR. The present inventive method and apparatus reduces reception errors and prevents saturation of the Bluetooth devices caused by 802.11 transmissions. The present inventive antenna switching method provides a means for coupling multiple antennas to Bluetooth and 802.11 transmit and receive devices. Saturation of the Bluetooth receive devices is prevented by electrically isolating the Bluetooth receive devices from antennas used by the 802.11 device during 802.11 transmissions. The antenna switching apparatus includes a plurality of switches capable of selectively coupling and decoupling first and second antennas to an 802.11 and a Bluetooth device.