Passa ai contenuti principali

Satellite TV - What Is It and How Does It Work? - Technology

You may have already seen several households all around the United States, especially in rural areas, with compact satellite dishes hovering on their rooftops. That means these households have satellite TV and are enjoying the services of satellite TV companies.

Satellite TV is another way of delivering television programming to the viewers. Satellite TV is a lot similar to broadcast television. Both of them transmit programming with the use of radio signals. However, there are some limitations to broadcast television.

Broadcast TV vs. Satellite TV

Broadcast stations make use of a powerful antenna to transmit radio waves to the surrounding area within a specific range. The viewers of broadcast TV have a smaller antenna to pick up these signals transmitted by the station.

However, the smaller antenna should be in the direct line of sight of the station's antenna to be able to receive a good signal. The signal received is also often distorted unless the receiver is very near the transmitting station.

Satellite TV companies, on the other hand, have a solution to the range and distortion problems of broadcast TV. Satellite TV transmits broadcast signals through satellites orbiting the Earth. Since these satellites are situated high in the sky, there are definitely more receivers in the line of sight of the transmitted signal.

How Satellite TV Works?

Satellite TV systems make use of satellite dishes which are specialized antennas to transmit and receive radio signals.

The communication satellites used in satellite TV are launched into space at about 37,000 km above the Earth's surface at the speed of around 11,000 kph. With this speed and altitude, the satellite can keep pace with the Earth's movement exactly which means it revolves around the Earth once every 24 hours.

The satellites are also in geosynchronous orbit which means they stay in a single location in the sky relative to the earth. Thus, the satellite dish needs to be directed at the satellite once as long as everything works fine.

Satellite TV starts with a transmitting antenna situated at an uplink facility. The uplink satellite dishes are directed at the satellite to transmit signals to as much as 9 to 12 meters in diameter. The bigger the diameter, the more improved the reception will be at the satellite. The signal is transmitted to transponders on-board the satellite, which retransmit the signal back to the Earth using a different frequency.

The satellite TV signal is quite weak due to travel in space. However, this signal, once collected by the parabolic satellite dish, is down-converted to a lower frequency band then amplified using a low-noise block down-converter, or LNB.

Types of Satellite TV Distribution

There are two primary kinds of satellite TV distribution, namely television receive-only (TVRO) and direct broadcast satellite (DBS).

Television receive-only satellite is a satellite TV reception device based on open standards equipment. This type is often referred to as the big dish satellite TV. TVRO systems more often use larger satellite dishes since a C-band setup is more common to owners of this system, although it is designed to receive signals both from C-band and K u-band satellite TV signals.

Direct broadband satellite TV is also known as "direct to home". DBS systems are also referred to as the "minidish" systems as it uses the small satellite dish that we commonly see around. This system uses the upper portion of the K u-band.

Satellite TV is getting more popular nowadays. It can be a good alternative to the regular broadcast TV or the more common cable TV.





iAutoblog the premier autoblogger software

Commenti

Post popolari in questo blog

Sony Tv Pc Input Not Working - Look at Satellite Tv On Computer Without The Dish - Internet

Seeing satellite Tv on Pc with no a dish is a completely new idea to many people. This report would expose how you can appreciate satellite sony tv pc input not working Tv without having any messy satellite dish installation.For individuals of us who live in remote elements of the world, we are used to watching satellite tv employing a dish. This dish basically acts like an antenna to get/transmit signals to and from satellites, permitting us to observe satellite tv. The set up of a satellite tv can be laborious for folks who are not too techie. The set up requires acquiring the satellite dish erected outdoor and sony tv pc input not working correcting a reduced-sounds block converter (LNB) on the dish. A receiver or decoder is also needed in buy to comprehensive the set up. If this set-up seems extremely complex to you, you would be glad to know that you can now view satellite Tv on Computer, without any advanced installation.Right here are the basic hardware and laptop o r computer ...

Free TV - Would it be A Myth Or Regarding Real? - Computers

A number of these software programs are open basis, meaning those persons that happen to be interested on downloading this will likely modify the code from a software to create these better or higher complex. So still you need to be careful and make particular that you're downloading the ideal software. We need to get yourself a freeware cleaner that will help us keep our computers to get a clean registry, enable for our desktops or maybe laptops to hasten and work perfectly. Within today's new release, the computers are perfectly developed and additional move forward. Every one of persons are using this technological know-how, sometimes worldwide, specially the highest groups of private companies or government agencies and areas for efficient operations therefore thus to their businesses. At 1st, you will be hesitant to secure a cleaner totally free on the web. I think folks that are wise and smart will certainly think, yes and that is certainly normal because we only ...

Discover the Best Satellite TV Offer - Entertainment

If you are in thinking of joining the millions of people having satellite TV system in their homes you must carefully study or aware of the pros and cons of satellite TV to get the best satellite TV offer. If you want to get satellite TV services offered by satellite TV providers you must carefully think and aware of the advantages and disadvantages of their services. You are about to discover the best satellite TV offer here and you can decide on what options you will take to enjoy the best entertainment you are looking for. Advantages of Satellite TV Services -Large range of channels to choose from compared to cable TV and there are also satellite TV packages that will give you greater satellite TV offer giving you more value to your money. -Satellite TV can be accessed everywhere as long as you have unobstructed southern exposure. Satellite TV can also reach rural areas where cable TV is not accessible. -If your satellite dish is installed in correct line with the sa...