Cage aerial
Appearance
A Cage aerial is a radio antenna, which consists of several parallel wires, which are radially arranged around a tower or a mast. An advantage of the cage aerials is the fact that the supporting tower can be grounded, which allows it to be used for other radio services, such as a support for VHF or UHF antennas. A grounded tower also simplifies the installation of aircraft warning lamps. Cage aerials have been built in different variants for broadcasting stations in the longwave and mediumwave band.