When thinking of Coaxial cables, most people will immediately think of the cable running through their walls with a Cable TV connector. This is also referred to as RF cable, and the connection is sometimes called F-pin. If you need to split this signal into multiple rooms, that is called a coax splitter or RF splitter. The coax cable commonly used today for this application is called RG6 cable. The cable type formerly used is called RG59 and has a lower bandwidth. Other uses for coaxial cable are in home theater setups as digital coaxial. This cable is used to carry surround sound audio from a device to a receiver. BNC cables are also coaxial cables that are typically used to carry video from a security camera to a DVR. These cables are 75 ohm BNC.