How DTH works?
In general, DTH service is the one in which a large number of channels are digitally compressed, encrypted and beamed from very high power satellites. The programmes can be directly received at homes. This mode of reception facilitates the use of small receive dish antennas of 45 to 60 cm diameter installed at convenient location in individual buildings without needing elaborate foundation /space etc. Also, DTH transmission eliminates local cable operator completely, since an individual user is directly connected to the service providers. However, a digital receiver is needed to receive the multiplexed signals and view them on a TV. DTH, in sharp contrast to Cable TV, lends itself to easy monitoring and control. Transmission in Ku band is most appropriate and widely used for the purpose. As mentioned above, all the encoded transmission signals are digital – thus providing higher resolution picture quality and better audio than traditional analog signals. All the advantages of the digit
