The VHF (174 to 216 MHz) UA874V Active Directional Antenna from Shure uses a log-periodic dipole array to offer enhanced reception for Shure wireless receivers and antenna distribution systems that provide 10 to 15 VDC bias. It can be used as an integrated amplifier with four gain settings to compensate for varying degrees of coaxial cable signal loss. The UA874 can be mounted on a microphone stand, suspended from the ceiling, or mounted to a wall.