Mast radiator
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A mast radiator is a radio mast or tower in which the metal structure itself is energized and functions as an antenna. This design, first used widely in the 1930s, is commonly used for transmitting an
A typical mast radiator and antenna tuning hut of an AM radio station in Chapel Hill, North Carolina, U.S.
Typical 60-meter (200 ft) triangular guyed lattice mast of an AM radio station in Mount Vernon, Washington, US
The Blosenbergturm, a freestanding tower antenna in Beromünster, Switzerland
To ensure that the mast acts as a single conductor, the separate structural sections of the mast are connected electrically by copper jumpers.
Monopole antenna
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A monopole antenna is a class of radio antenna consisting of a straight rod-shaped conductor, often mounted perpendicularly over some type of conductive surface, called a ground plane. The current fro
Amateur radio cage T antenna at Riverhead, New York, used to communicate with Europe at frequency of 1.5 MHz, 1922
Trideco umbrella antenna of the VLF transmitter at Anthorn military radio station, UK, transmitting at 19.6 kHz
Retractable quarter-wave whip antenna for FM reception on a portable radio, 88 - 108 MHz