How does satellite tv work?

Satellite television is an alternative choice to cable television services in many countries. It offers wide range of channels at stunning picture and sound quality. DirecTV and Dish network are the famous satellite television providers in USA. Millions of people in USA are utilizing the service of DirecTV and Dish network.

Satellite television provider broadcasts television signals through geostationary satellite located above the earth equator. Geostationary satellites are positioned approximately 22,300 miles above from the earth. Transponders, an automatic electronic controller device positioned in the satellite, receive, examine, amplify and re transmit signals to the earth. The frequency of these signals can typically state as C Band, Ku Band, or Ka Band.

Satellite dishes are used to receive signals transmitted from geostationary satellites. Signals need to travel approximately twenty-two thousand kilometres to arrive at the dish. Usually dishes receives week signals from satellites, the dish transfers it to the feedhorn, a horn antenna that is deployed as part of the dish to offset unwanted signals from the source. Feedhorn transmits signals to low-noise block down converter (LNB). LNB modulate the frequency of the signal and transmits it to the satellite receivers over Intra-Facility Link cable (IFL). These cables are sealed coaxial cables with BNC connectors at the end.

Satellite television operators provide dish antenna installation kit to the subscribers. It contains a satellite Dish, mounting pole, coaxial Cable, and a signal decoder. Satellite dish should be installed at the outdoors of your home or apartment.

Satellite TV service is really a boon to the people of rural and remote locations where no cable services are accessible. Dish network and DirecTV promises best satellite tv deals and installation assistance to all category of people.

The dish should be directed to the satellite from where your satellite provider’s signal can detect. GPS can be used to locate the position of signals. Always ensure that no obstructions hinder the free flow of signals in between the satellite and dish.

Nowadays satellite television transmits digital signals. Digital revolution endows the satellite television operators to deliver more channels in the same bandwidth. Channels deliver digitally in a compressed Mpeg2 format with high quality. The subscriber will get uninterrupted signals from digital broadcasting service.

Dish network and DirecTV broadcasts Ka (Kurz-above) and Ku (Kurtz-under band) bands programming to their subscribers. Higher frequencies in the Ka band are usually most vulnerable to rain fade and solar interferences.

This entry was posted on Monday, January 17th, 2011 at 6:53 am and is filed under Satellite TV. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.