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2. List of RF connector types - Wikipedia

   en.wikipedia.org/wiki/List_of_RF_connector_types

   NMO mount connector (new Motorola mount), removable mobile antenna connector uses a 3 ⁄ 4 inch (19 mm) mounting hole and has a large base with a 1 1/8" – 18 tpi thread for attaching the antenna. SC connector, screw version of C connector [not to be confused with the fiber optic connector of the same name]

3. Random wire antenna - Wikipedia

   en.wikipedia.org/wiki/Random_wire_antenna

   Often random wire antennas are also (inaccurately) referred to as long-wire antennas.There is no accepted minimum size, but actual long-wire antennas must be greater than at least a quarter-wavelength (⁠ 1 / 4 ⁠ λ) or perhaps greater than a half (⁠ 1 / 2 ⁠ λ) at the frequency the long wire antenna is used for, and even a half-wave may only be considered "long-ish" rather than "truly ...

4. Twin-lead - Wikipedia

   en.wikipedia.org/wiki/Twin-lead

   The most common, 300 Ω twin-lead ribbon cable, was once widely used to connect television sets and FM radios to their receiving antennas. 300 Ω twin lead ribbon cable for television installations has been largely replaced with 75 Ω coaxial cable. Multiple forms of parallel wire line are used in amateur radio stations as feedline for balanced ...

5. TV aerial plug - Wikipedia

   en.wikipedia.org/wiki/TV_aerial_plug

   Belling-Lee connectors Flex Type F connectors. A TV aerial plug is a connector used to connect coaxial cables with each other and with terrestrial VHF/UHF roof antennas, antenna signal amplifiers, CATV distribution equipment, TV sets and FM / DAB-radio receivers.

6. Counterpoise (ground system) - Wikipedia

   en.wikipedia.org/wiki/Counterpoise_(ground_system)

   Antenna used in Lodge-Muirhead wireless system around 1900, the first counterpoise. In electronics and radio communications, a counterpoise is a network of suspended horizontal wires or cables (or a metal screen), used as a substitute for an earth connection in a radio antenna system.

7. RF connector - Wikipedia

   en.wikipedia.org/wiki/RF_connector

   An RF connector (radio frequency connector) is an electrical connector designed to work at radio frequencies in the multi-megahertz range. RF connectors are typically used with coaxial cables and are designed to maintain the shielding that the coaxial design offers.