Satellite Television - Understanding The Basics

We set the television, in a traditional manner, and the remote transmission of sound and moving image through electromagnetic waves (radio waves) or cables.

The operation of the television can be divided into three stages:

Awarding body:

The cameras capture the image.

The images are converted to radio signals.

Transmission:

The waves travel towards the air to reach the antenna viewers.

Reception:

The antenna captures electromagnetic waves and transforms them into electrical signals.

The electrical signal television image and sound in our screen.

Once we know how the whole process of operation of the TV we stop in a material, but perhaps can be a bit confusing for a non-expert in communication systems. We refer to electromagnetic waves or radio waves, specifically say that these waves are transmitted through the air is where information travels, ie it is in these traveling waves where images and sound that finally we see in our TV. They are also called radio waves because they are the same type of waves used in our radios, the only difference is that the information contained therein is voice only, while the TV signal also includes image. Finally, because electromagnetic waves are also called simply because they are waves that are formed by an electric component and a magnetic component but will not go into more detail. Once we know the nature of the television airwaves, we can divide these into two types according to the way the information transmitted:

Analog transmission: Has the system been used until today but has become obsolete, the information was transmitted waves luminance (Y signal) and chroma (RGB signal).

Digital Transmission: The digital television technology, the information transmitted wave is made up of digital information (such as CD, or DVD). The older TVs that are not prepared to receive the digital signal, need an adapter DTT (digital terrestrial television).

So far we have commented that the signal travels (diffuses) through the air waves at this point introduce new options thanks to technological progress. Consider the types of broadcast TV signal:

Terrestrial: The TV signal transmitter station leaves and travels through the air to our receiving antenna or receiving antenna of the community.

Satellite: The TV signal travels through space to a communications satellite which relays it to the ground and comes to our satellite dish, cover large areas of the planet.

Cable: The TV signal coming into our home through a cable.

In future articles we will grasp the basics in order to receive thousands of channels from around the world online and enjoy it at the best price ...