he HA-8091 Domed Helical Antenna offers unparalleled drop-out free RF performance for IEM, wireless mics and intercoms. Domed Helical Antennas are part of a new generation of antennas that provide greater bandwidth, longer range, greater reliability and more flexibility than other antennas. Unlike traditional whip and other antennas which transmit and receive signals in a single polarization, the circular motion of the RF field emitted by a helical antenna distributes the signal through all possible polarization, greatly reducing the risk of drop-outs. The high gain ensures the strongest possible signal.