Coaxial cable is used primarily to distribute television signals throughout the home. These signals come from variety of sources such as antenna, local cable provider, wireless digital T.V. providers, or satellite based services. The cable used to carry these signals through the home come in two types: RG-6 and RG-59. It is important to use the right cable for the application to maintain the signal integrity so the images do not get distorted or snowy.
RG-59 is a lower grade of coaxial cable, consisting of a small center conductor, a small insulating dielectric, and typically, a single outer shield. Because it has only one outer shield it is susceptible to induced signal from other wiring, and the small center conductor has a greater signal loss compared with RG-6.
RG-6, on the other hand, has a larger center conductor, a dual or quad shield, and a much larger insulating dielectric, thus ensuring more bandwidth and a lower frequency loss per foot. It delivers exceptional performance for the above-mentioned applications, and is considered the cable of choice for digital TV.
Network nodes are connected by coaxial cable in either of two varieties, known as thin and thick or by twisted-pair wiring. Size is important when working with cables because sometime cable must be pulled through existing conduits that may be limited in size.
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Ethernet thinnet is smaller in diameter, easier to install, and cheaper and referred to as cheapnet. Special care has to be taken when installing thinnet. Thinnet had to be properly grounded by ensuring there was a solid electrical connection at both ends of the cable and because installers frequently failed to do this, poor shield connection resulted in electrical noise that interfered with signal transmitted on the network and is the reason that thinnet is not used as much. .
10Base2 is a designation for 802.3 Ethernet thin coaxial cable with a bandwidth of 10 Mbps, it is baseband transmission technology, and a maximum segment length for this cable type is 200 meters (actually, 185).
