Antenna is an electrical device which converts electric power into radio waves, and vice versa. It is usually used with a radio transmitter or radio receiver, thus the name of radio antenna. Antennas are essential components of all equipment that uses radio. They are used in systems such as radio broadcasting, broadcast television, two-way radio, communications receivers, radar, cell phones, and satellite communications, as well as other devices such as garage door openers, wireless microphones, bluetooth enabled devices, wireless computer networks, baby monitors, and RFID tags on merchandise.

Radio Antenna often support by metal bracket, hence name as radio antenna mast. Its material often adopts steel, Aluminum, or other composite metal, with light weight and solid resistance for wind or other loading. MEGATRO provide bigger size radio antenna mast with every shape.