How the television signal is transmitted and received to my house

Television signal transmitted mainly by terrestrial repeater antennas that use analog signals (analog television is becoming outdated, uses VHF and UHF antennas) and digital signals (digital television that only uses UHF antennas, if the receiver is not new, require Chinese TV decoders or tuner to receive the signal ).

In the same way, it is transmitted by satellite signal, to watch digital TV you need place satellite dishes taking into account the LNB azimuth, elevation and polarization.

How can the information be transmitted to my TV

Before knowing how the television works, it is necessary to understand the behavior of light since the light captured by the camera is reflected by the objects on the stage. In the case of the human eye, the retina is capable of perceive color through cells that capture the primary colors green, red and blue, the rest of the colors are formed by mixing these three.

The most important instrument for making television is the camera since it captures the image through electronic means, chen the light passes through the camera it reaches about mirrors that separate it into the three primary colors By placing them in separate tubes, within each tube the projected image is read from left to right.

The reading is converted into electrical signals, once the signal is processed it can be launched into space in the form of waves in a straight line that are collected by a receiving antenna. It is necessary to emphasize that the television waves are of little reach, that is why they are installed repeater antennas in high places.

Once the TV captures the waves, it transforms them back into an image, because it has 3 tubes that emit AS of electrons affecting the screen light spots (green, red and blue colors), making the image form by sweeping the screen from left to right. So the AS of each cannon can incur only on the dots that will form the image.

What are the types of transmission signals?

On the one hand, the analog signal, which is when the physical medium in which it is produced changes continuously, that is, it is represented as a line that rises and falls according to the vibrations. It is characterized by: to be signal of greater intensity, can be modulated, the procedure is simpler and prone to interference.

On the other hand, the digital signal is when the physical medium in which it is produced changes discontinuously. Is distinguished by: capture HD signal, be more efficient, be linked to paid services, capture the image with a more complex procedure, suffer from image freezing, can be stored, transmitted and processed.

Which is better between cable TV and satellite TV?

Deciding which is the best of the two in the end is in your hands, however we will describe in brief lines of what it is about and they offer both services So that you are the one who decides which of these two options to take.

Cable television has evolved in recent years from endless piped coaxial cabling to a sophisticated non-broadband fiber optic network with access to high-quality programming. You can also offer you a bundle of services such as cable, telephony and internet at low prices.

One of the greatest advantages of choosing cable TV is that you do not spoil the facade of your home with grotesque satellite dishes, since the varied programming reaches your home using a wired network, while satellite television requires the mandatory installation of a dish to receive broadcasts. Advances in technology even allow us to watch free television over the internet, a modality that little by little is gaining followers.

For its part, satellite television offers a wide range of national and international TV programmingl. In addition to this, unlike cable television that delivers compressed information to homes, satellite television receives and broadcasts unencrypted channels.