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2. Radio masts and towers - Wikipedia

   en.wikipedia.org/wiki/Radio_masts_and_towers

   The antenna used for broadcasting through the 1920s was the T-antenna, which consisted of two masts with loading wires on top, strung between them, requiring twice the construction costs and land area of a single mast. [2] (pp 77–78) In 1924 Stuart Ballantine published two historic papers which led to the development of the single mast antenna.

3. Mast radiator - Wikipedia

   en.wikipedia.org/wiki/Mast_radiator

   By 1930 the disadvantages of the T antenna led broadcasters to adopt the mast radiator antenna. [9] One of the first types used was the diamond cantilever or Blaw-Knox tower. This had a diamond (rhombohedral) shape which made it rigid, so only one set of guy lines was needed, at its wide waist. The pointed lower end of the antenna ended in a ...

4. List of tallest structures in the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_tallest_structures...

   From 1974 until its collapse in 1991, the Warsaw radio mast in Poland also eclipsed the KVLY-TV mast. This tower is used so KVLY-TV can cover both Fargo and Grand Forks. In 2019, the top mount antenna was removed, dropping the overall height to 1,987 ft (605.6 m) [8] KRDK-TV Television Tower (Fargo/Valley City CBS 4) Height: 2,060 ft (628 m)

5. Fleet Satellite Communications System - Wikipedia

   en.wikipedia.org/wiki/Fleet_Satellite...

   The fifth satellite reached geosynchronous orbit, but had severely limited utility due to damage to the solar arrays and antennas. The failure was attributed to explosive delamination of the fiberglass honeycomb fairing during flight. The inside wall of the fairing extensively damaged one of the solar arrays, and bent the transmit antenna mast ...

6. Whip antenna - Wikipedia

   en.wikipedia.org/wiki/Whip_antenna

   A whip antenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter. A whip antenna is a form of monopole antenna. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when ...

7. Advanced Enclosed Mast/Sensor - Wikipedia

   en.wikipedia.org/wiki/Advanced_Enclosed_Mast/Sensor

   [1]: 25–26 The radome material is designed so that the antennas can transmit and receive through the material. [1]: 25 The base of the mast is constructed from fiber reinforced composite skins encasing end-grain balsa core. [1]: 26 The upper (radome) section consists of structural foam and fiberglass. [1]: 26