Cable TV Systems: 24 In 1 Analog Fixed Channel Modulator Headend
“A television network available via direct cable channel, available through satellite broadcast, as well as via IPTV channel.” Cable TV is also known as “CATV” (community antenna television). In addition to bringing television programs to those millions of people throughout the world who are connected to a community antenna, cable TV will likely become a popular way to interact with the World Wide Web and other new forms of multimedia information and entertainment services. Cable Television Network Diagram
Cable Television Network diagram 1. Most cable TV systems also carry local over-the-air television stations for distribution. 2. Some cable TV systems receive the local television stations’ programming by dedicated coaxial, microwave link or fiber-optic line, installed between the local station and the headend. 3. Other sources of programming include those delivered via fiber optics, telephone wires, the Internet, microwave towers and local public-access television channels that are sent to the cable headend on an upstream frequency over the cable system itself (known in the industry as “T”-channels), or via a dedicated line set up by the cable company, for reception of local television stations’ programming by the headend. Cable television headend and modulator A cable television headend is a master facility for receiving television signals for processing and distribution over a cable television system. The headend facility is normally unstaffed and surrounded by some type of security fencing and is typically a building or large shed housing electronic equipment used to receive and re-transmit video over the local cable infrastructure. One can also find head ends in power line communication (PLC) substations and Internet communications networks.