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  2. Belling-Lee connector - Wikipedia

    en.wikipedia.org/wiki/Belling-Lee_connector

    Female Belling-Lee connector on a television set. The Belling-Lee connector (also type 9,52, but largely only in the context of its specification, IEC 61169, Part 2: Radio-frequency coaxial connector of type 9,52) [1] is commonly used in Europe, parts of Southeast Asia, and Australia, to connect coaxial cables with each other and with terrestrial VHF/UHF roof antennas, antenna signal ...

  3. Wiring diagram - Wikipedia

    en.wikipedia.org/wiki/Wiring_diagram

    A wiring diagram usually gives information about the relative position and arrangement of devices and terminals on the devices, to help in building or servicing the device. This is unlike a schematic diagram , where the arrangement of the components' interconnections on the diagram usually does not correspond to the components' physical ...

  4. Low-noise block downconverter - Wikipedia

    en.wikipedia.org/wiki/Low-noise_block_downconverter

    Along with the supply voltage level used to switch between polarizations, this enables a universal LNB to receive both polarizations (vertical and horizontal) and the full range of frequencies in the satellite K u band under the control of the receiver, in four sub-bands: [7] Here is an example of a universal LNB used in Europe:

  5. Coaxial antenna - Wikipedia

    en.wikipedia.org/wiki/Coaxial_antenna

    In the most basic form, a quarter-wavelength section of coaxial cable is prepared such that the inner and outer conductors are separate but still attached to the remaining cable. The outer (shield) conductor is connected to a quarter-wavelength conducting sleeve into which the cable is inserted, and the inner conductor protrudes vertically ...

  6. Antenna feed - Wikipedia

    en.wikipedia.org/wiki/Antenna_feed

    The antenna feed system or antenna feed is the cable or conductor, and other associated equipment, which connects the transmitter or receiver with the antenna and makes the two devices compatible. [ 1 ] [ 2 ] In a radio transmitter, the transmitter generates an alternating current of radio frequency , and the feed system feeds the current to ...

  7. Twin-lead - Wikipedia

    en.wikipedia.org/wiki/Twin-lead

    For this reason, when attaching a twin-lead line to a coaxial cable connection, such as the 300 Ω twin-lead from a domestic television antenna to the television's 75 ohm coax antenna input, a balun with a 4:1 ratio is commonly used. Its purpose is double: First, it transforms twin-lead's 300 Ω impedance to match the 75 Ω coaxial cable ...

  8. EIA RF Connectors - Wikipedia

    en.wikipedia.org/wiki/EIA_RF_Connectors

    The flange design, inner and outer conductor dimensions are standardized, by EIA, in the RS-225, 50 Ω (ohm), and RS-259, 75 Ω, standards.They are commonly referred to by the inner diameter of the outer conductor in fractional inches.

  9. RF connector - Wikipedia

    en.wikipedia.org/wiki/RF_connector

    Various popular RF connectors Electronic symbols for the plug and jack coaxial connectors Time-domain reflectometry shows reflections due to impedance variations in mated RF connectors. An RF connector ( radio frequency connector ) is an electrical connector designed to work at radio frequencies in the multi-megahertz range.