The CP Beam™ Antenna is a lightweight, circularly polarized beam antenna (470-698 MHz) designed to be used with IEMs, wireless microphone systems, and other UHF communication devices. The CP Beam is easy to set up and transport - fitting in a 2RU rack drawer and weighing just 2.5 lbs - and compresses for easy storage. To use, disconnect straps and extend CP Beam. Connect coaxial cable (not included) to receiver, transmitter, or antenna combiner. Provides up to 9 dB of antenna gain. Mounts to ¼"-20, â…œ"-16 or â…"-27 threads.