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2. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   Aerials mounted on the rooftops of houses in England. Aerials are attached to roofs in various ways, usually on a pole to elevate it above the roof. This is generally sufficient in most areas. In some places, however, such as a deep valley or near taller structures, the antenna may need to be placed significantly higher, using a guyed mast or mast.

3. List of catastrophic collapses of broadcast masts and towers

   en.wikipedia.org/wiki/List_of_catastrophic...

   Tower being modified prior to installation of Iowa Public Television side-mounted antenna – five workers on tower site killed TV Mast Brest - Roc'h Trédudon, France February 1974: Guyed steel lattice mast 218 Terrorism A slightly higher tower, 225 m, has been built since. KELO TV Tower, Rowena, South Dakota, US 1975: Guyed steel lattice mast 610

4. Mast radiator - Wikipedia

   en.wikipedia.org/wiki/Mast_radiator

   Types of antenna often mounted on mast radiators are: fiberglass whip antennas for land mobile radio systems for taxi and delivery services, dish antennas for microwave relay links carrying commercial telecommunications and internet data, FM radio broadcasting antennas consisting of collinear bays of twisted dipole elements, and cellular base ...

5. SW1C - Wikipedia

   en.wikipedia.org/wiki/SW1C

   In December 1942, the Navy asked for a version able to be mounted on motor torpedo boats. The NRC dusted off their work with the motorized rotation using the new antenna, becoming SW3C. [ 11 ] This also changed the display from a B-scope displaying angle and range, to a plan position indicator (PPI) that produced a 360-degree view around the ship.

6. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   A lens antenna is made from a layer of dielectric, or a metal screen, or multiple waveguide structure of varying thickness, mounted in front of a feed antenna. The waveguide / screen / dialectric refracts the radio waves, focusing them on the feed antenna, similar to a focusing lens placed in front of a flashlight. Dielectric resonator

7. Folded unipole antenna - Wikipedia

   en.wikipedia.org/wiki/Folded_unipole_antenna

   The folded unipole antenna is a type of monopole mast radiator antenna used as a transmitting antenna mainly in the medium wave band for AM radio broadcasting stations. It consists of a vertical metal rod or mast mounted over and connected at its base to a grounding system consisting of buried wires. The mast is surrounded by a "skirt" of ...