The AV-529 is designed for broadband communications (118-137 MHz). It has a die-cast aluminum base and a uniquely designed radiator encapsulated in a fiberglass whip. The antenna is supplied with a weather-sealing gasket and mounting hardware. The antenna is designed to operate at speeds up to 350 mph and altitudes of 50,000 ft. It has a drag force of 3.43 lb @ 250 mph. The antenna is a direct replacement for the CI 291.