What is Coax Cable?
Coaxial cable (coax) is a metallic electrical cable used for RF (radio frequency) and certain data communications transmission. The cable is constructed with a single solid or stranded center conductor that is surrounded by the dielectric layer, an insulating material of constant thickness and high resistance. A conducting layer of aluminum foil, metallic braid or a combination of the two encompass the dielectric and act as both a shield against interference (to or from the center conductor) and as the return ground for the cable. Finally, an overall-insulating layer forms the outer jacket of the cable. Coaxial cable is generally superior in high-frequency applications such as networking. However, for shorter distances (up to 100 meters), UTP or STP cable is generally just as reliable when using differential modulation techniques (such as with 10BaseT). There are three types of RG-58 cable, as far as I can tell. There are probably other subtle differences, but for 10BASE2, impedance an
