Active UHF wireless directional antenna for use with Line 6 Relay G90 (RXR12) and XD-V70 (RX212) receivers. It features patch array. When compared to an omnidirectional 1/2-wave antenna, cardioid pattern provided by P180 offers enhanced reception within desired coverage area and greater rejection of RF signals outside coverage area. To compensate for coaxial cable signal loss, it has an on-board amplifier that offers user selectable 6dB, 15dB or 26dB of gain. Gain setting is indicated in cable length increments 25ft (6dB), 50ft (15dB) and 100ft (26dB) on cable length selector switch, which is located on rear of antenna. It can be mounted on microphone stand using integrated adapter. For best diversity performance, use two P180 antennas.