Have you ever wondered how we are able to watch so many channels on our television without any interruption, what is the mechanism involved in broadcasting, how our cable services grew from an experiment to a full-fledged set of hundreds of channels that we are currently able to watch, what is the role of government and private players in the evolution, problems faced by the cable operators and how this changing technology created a cut-throat competition among them? To reveal such kind of curiosity in your mind I have created a series of informative contents that will surely remove such kinds of questions from your mind. In this blog, you will get to know what is cable service and how it works.
According to the dictionary, cable service is a subscription television service that uses cables to carry signals between local distribution antennas and the subscriber's location. Also called cable TV. This is the simplest definition but do you know when it all began? In India broadcasting began in 1959 on an experimental basis and in 1972 TV services reached the cities of Mumbai and Amritsar. In 1975 television broadcasting services expanded to seven states and in 1982 government used the satellite ‘INSAT-1A’ to expand the telecast services to the whole country. In 1984 apart from Doordarshan, DD Metro is telecasted for regional regions with famous shows such as Mahabharat and Ramayan. With new economic reforms in 1991 private players and other foreign channels entered into this market.
Now let us see how the cable services work. Earlier television broadcasting used the radio frequency waves and then private players in this segment used the analog signals through cables and now digital signals are used to broadcast the different channels through an optical fiber. There is a program source and MSOs( Multi-Service Operators) that receive the video signals from different sources and at the broadcast center they club all the signals and they do the necessary editing like compression or encryption. After some editing, these signals are sent by MSOs, which also provide the connection to cable tv subscribers and local cable operators.
Similarly, DTH uses a satellite to broadcast to its end-user. Similarly, a single DBS provider has 300 to 400 channels. Now the end-user needs to set the antenna towards a particular DBS provider satellite.
The signals received by the dish antenna are encrypted and decrypted by setup box with a dedicated card. We as a consumer just bothered about the network channels and the cheapest package available, but as a service provider, it is equally important for you to provide unmatched services as well as to know your customer needs.
Author: Pratiush Kumar
Degree:- Pursuing Post Graduate Diploma in Global Business Operations from Shri Ram College of Commerce, B.Tech in Electrical Engineering from KIIT University