How are Video signals transmitted?
Video images are transmitted across cables in a variety of ways; from single coaxial cable to the use of as many as 5 coaxial lines to transmit the video image. The more the video signal is broken down into individual components, the better the image. Below is a list of commonly used video transmission signals: Red, Green, Blue (RGB) – This method uses 3 to 5 coaxial lines with BNC style connectors or HD15 interfaces. The video signal is split into three primary colors (Red, Green, and Blue) with separate lines often used for control signals. This method produces an extremely high quality video image. Component – Three coaxial lines are used in this method with RCA style connectors. Black and white information is carried on one coaxial line while color differential signals are carried on the two remaining coaxial lines. This method produces a high quality video image. S-Video – This method utilizes two coaxial lines contained within one outer jacket with a Mini DIN 4 circular connector
