ABSTRACT
The feeding of many Television (TV) receivers from a single antenna is called cable TV. A single antenna can feed a complete locality. The antenna is installed at the top of a building and the signal is fed to the houses through cable. The antenna is generally dish antenna which receives national as well as international signals through satellite and this signal is sent to houses through cable. The set top box selects channels and controls the operations. A cable modem sends and receives data from the internet, using the cable network. The modem translates signals in the same way, a telephone modem does from the telephone line. It translates radio frequency signals to (and from) the cable into internet. The cable connection can also be made through optical fibre cable (OFC) replacing the coaxial cable. The Direct to Home (DTH) service is a satellite transmission technology. It has numerous merits for the sender as well as for the receiver.
