07. Cable TV Systems
7.1 Introduction Cable Television (CATV) was initially introduced for the benefit of communities living in shadow zones and in areas that were beyond the range of broadcast transmitters. However, with the advent of satellite television, reception of signals form a large number of TV stations located farther away have become possible. Cable TV has now expanded into a multi channel system with the availability of a large frequency spectrum. Modern cable networks have provisions for two way interactive communication with computer base data to provide services like interactive TV, pay TV etc. 7.2 Cable Signal Sources It is essential for…