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2. Harbor Freight Tools - Wikipedia

   en.wikipedia.org/wiki/Harbor_Freight_Tools

   Harbor Freight Tools won a declassification of the class action; that is, the court found that all the individual situations were not similar enough to be judged as a single class, and that their claims would require an individual-by-individual inquiry, so the case could not be handled on a class basis.

3. 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.

4. Guyed mast - Wikipedia

   en.wikipedia.org/wiki/Guyed_mast

   Guyed masts are frequently used for radio masts and towers. The mast can either support radio antennas (for VHF, UHF and other microwave bands) mounted at its top, or the entire structure itself can function as a mast radiator antenna (for VLF, LF, MF). In the latter case, the mast needs to be insulated from the ground. Guyed radio masts are ...

5. VLF Transmitter Cutler - Wikipedia

   en.wikipedia.org/wiki/VLF_Transmitter_Cutler

   The two arrays normally operate together as one antenna, but each is designed to function independently to allow maintenance on the other array. The central tower of each antenna system is 304 m (997.4 ft) tall. It is surrounded by six 266.7 m (875 ft) tall masts, placed on a ring with a radius of 556 m around the central tower.

6. Guy-wire - Wikipedia

   en.wikipedia.org/wiki/Guy-wire

   A sailboat's mast is supported by shrouds (side-to-side) and stays (fore-and-aft) – nautical equivalents of guy wires.. A guy-wire, guy-line, guy-rope, down guy, or stay, also called simply a guy, is a tensioned cable designed to add stability to a freestanding structure.

7. List of catastrophic collapses of broadcast masts and towers

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

   main mast of Shaanxi No.10 Transmitting Station, Chunhua, Xianyang, Shaanxi, China: May 2, 1982 [10] Guyed steel lattice mast 129 [11] High winds and corrosion Senior Road Tower, Missouri City, Texas, US December 7, 1982: Guyed steel lattice mast 569 Guy support wire severed Total collapse during installation of 6-ton FM antenna on new 1800 ft ...

8. Mast radiator - Wikipedia

   en.wikipedia.org/wiki/Mast_radiator

   An ideal monopole antenna radiates maximum power in horizontal directions at a height of 225 electrical degrees, about ⁠ 5 / 8 ⁠ or 0.625 of a wavelength (this is an approximation valid for a typical finite thickness mast; for an infinitely thin mast the maximum occurs at / = 0.637 [6]) As shown in the diagram, at heights below a half ...

9. 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.