Coaxial Cable Types And Specifications
Rg 6 can run longer distances than rg 59 without loss to a video signal however it s a thicker firmer cable which isn t as convenient to work with.
Coaxial cable types and specifications. Specifications of coaxial cables. Larger and lower loss than rg 58 but still convenient for shorter cable runs and jumpers up to 50 feet in length at 50 mhz or below rule of thumb up to 25 feet in length at 146 mhz rule of thumb rg 8u type. Typical outer conductors are. An rg 6 u coaxial cable has a characteristic impedance of 75 ohms.
Coaxial cable for video. Coaxial cables have been in use for the last four decades. Cable types and specifications semi rigid cables semi rigid coaxial cable has a solid outer conductor and is manufactured by drawing seamless tubing over the insulating material and center conductor. Coaxial cables are no longer used to build any type of computer network.
Because of low cost and long durability coaxial cables were used in computer networking for nearly two decades 80s and 90s. The most common types of coaxial cable for video are rg 59 and rg 6. It is most familiar to many consumers as the conduit that carries cable television signals into homes and businesses. Impedance is the amount of resistance the waves proceeding through the coaxial cable encounters.
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 dielectric type and jacket type. General purpose coaxial cable best for. Coaxial cable or coax pronounced ˈ k oʊ. Always check with a coaxial cable vendor for values specific to the type you plan to use.
The rg series was originally used to specify the types of coax cables for military use and the specification took. The term coaxial refers to the inner conductor and the outer shield sharing a geometric axis. Properties of popular coaxial cables. The lower the impedance the more easily the waves flow through the cable.
Generally lower loss extended frequency range and uniform impedance. Many coaxial cables also have a protective outer sheath or jacket. Rg 59 coaxial cable is the best type for cctv systems but rg 6 can also be used. The ur system as defined in the uk and is still widely used for coaxial cable.
Ur standard for uniradio and later the urm series stands for uniradio metric. The type of coaxial cable used will determine your signal strength and how many dbm your cable can handle. Note that attenuation values are given at 400 mhz but can and do often have significantly different values at other frequencies. A coaxial cable has an inner cable surrounded by an insulating agent usually made of lightweight plastic.
æ k s is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield with the two separated by a dielectric insulating material. It is electrically superior to flexible cable with 100 shielding effectiveness figure 9. Uk ur system for coax cable types. Rg 6 u is a common type of coaxial cable used in a wide variety of residential and commercial applications.
Usa rg systems for coax cable types.