The AV-569 is a boat type marker beacon (receive only) antenna designed for very low drag. It is constructed of an acrylonitrile-styrene-acrylic (ASA) shell with the internal parts encapsulated in rigid urethane foam for mechanical and electrical stability. The white color allows maximum performance without losses due to color pigments or unseen dirt. It is supplied with a cellular neoprene mounting pad and hardware. The AV-569 antenna is designed to operate at speeds up to 350 mph and altitudes up to 50,000 ft. It has a drag force of 0.20 lb @ 250 mph.