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  2. Coaxial cable - Wikipedia

    en.wikipedia.org/wiki/Coaxial_cable

    The best coaxial cable impedances were experimentally determined at Bell Laboratories in 1929 to be 77 Ω for low-attenuation, 60 Ω for high-voltage, and 30 Ω for high-power. For a coaxial cable with air dielectric and a shield of a given inner diameter, the attenuation is minimized by choosing the diameter of the inner conductor to give a ...

  3. Skin effect - Wikipedia

    en.wikipedia.org/wiki/Skin_effect

    Four stages of skin effect in a coax showing the effect on inductance. Diagrams show a cross-section of the coaxial cable. Color code: black = overall insulating sheath, tan = conductor, white = dielectric, green = current into the diagram, blue = current coming out of the diagram, dashed black lines with arrowheads = magnetic flux (B). The ...

  4. RG-6 - Wikipedia

    en.wikipedia.org/wiki/RG-6

    RG-6/U is a common type of coaxial cable used in a wide variety of residential and commercial applications. An RG-6/U coaxial cable has a characteristic impedance of 75 ohms. The term, RG-6 , is generic and is applied to a wide variety of cable designs, which differ from one another in shielding characteristics, center conductor composition ...

  5. Characteristic impedance - Wikipedia

    en.wikipedia.org/wiki/Characteristic_impedance

    The characteristic impedance of coaxial cables (coax) is commonly chosen to be 50 Ω for RF and microwave applications. Coax for video applications is usually 75 Ω for its lower loss. See also: Nominal impedance § 50 Ω and 75 Ω

  6. RG-58 - Wikipedia

    en.wikipedia.org/wiki/RG-58

    RG-58/U is a type of coaxial cable often used for low-power signal and RF connections. The cable has a characteristic impedance of either 50 or 52 Ω. "RG" was originally a unit indicator for bulk RF cable in the U.S. military's Joint Electronics Type Designation System. There are several versions covering the differences in core material ...

  7. RG-59 - Wikipedia

    en.wikipedia.org/wiki/RG-59

    RG-59 coaxial cable is commonly packed with consumer equipment, such as VCRs or digital cable/satellite receivers. Manufacturers tend to include only RG-59 cables because it costs less than RG-6 does. However, given the short lengths provided (usually 4–6 ft or 1.2–1.8 m), this is generally sufficient for its typical use.

  8. 3C-2V - Wikipedia

    en.wikipedia.org/wiki/3C-2V

    A 3C-2V cable. 3C-2V is commonly marked on low cost coaxial cable used for domestic TV signals.. It is one of the options of the Japanese cable standard JIS C 3501. The 3 indicates approx diameter of the conductive core plus the dielectric (diameter of conductive core =0.5 mm, dielectric thickness =1.3 mm)

  9. Transmission line - Wikipedia

    en.wikipedia.org/wiki/Transmission_line

    The total loss of power in a transmission line is often specified in decibels per metre (dB/m), and usually depends on the frequency of the signal. The manufacturer often supplies a chart showing the loss in dB/m at a range of frequencies. A loss of 3 dB corresponds approximately to a halving of the power.

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