A digital satellite system is that which is used to deliver television and internet directly from a satellite to the home or office of the consumer. Although it is primarily used for TV and internet, it also applies to radio transmission. These systems are owned by corporations and consumers use an airtel DTH recharge arrangement to pay service fees.
From the consumers point of view, the system consists of a small dish which is mounted somewhere on the consumers property, the only thing that must be maintained is line of sight between the dish and the stationary satellite. The dish is actually quite small, rarely are they any larger than about three feet in diameter. In the early days of the service the dishes were much larger, some easily exceeded 20 feet in diameter but technology has eliminated the need for large diameter dishes.
Digital satellite systems are often called direct broadcast systems; these systems actually have a number of advantages over traditional cable TV suppliers. In many countries, terrestrial television is highly regulated and the authorities can and do set restrictions on what programming can be aired and when. With airtel DTH recharge systems, there are few restrictions so digital TV providers can offer a very wide range of programs and they can do it at very attractive rates compared to cable companies as the capital requirements are considerably less.
The signals that are transmitted from the satellite are coded so that no just everyone can tap into the service. When a consumer becomes a subscriber of digital satellite TV he or she is provided with a decoder box which can be supplied against a contract which allows for service as long as the unit has been recharged via the airtel DTH recharge payment system.
Another feature of digital satellite TV is that the transmission includes information about the programming. Those who subscribe can scroll through a digital version of a TV guide to find out what shows are on, when and on what channel. Normally there is a little information given about the shows which contains the names of the featured players and the shows duration.
There are different major suppliers of the service depending on where in the world you subscribe.
