What is digital TV

Before discussing what digital TV is, it is necessary to have at least a brief understanding of such television in general. Based on the type of signal, there are two types of television - analog and digital. Analogue television transmits the signal from the translator due to electromagnetic vibrations. A television antenna picks up radio waves, and a ray tube converts the waves into familiar sound and image. The analog signal is not resistant to various interferences, which leads to a deterioration in the quality of the picture on the screen, and in other cases, even to a change in the television program.

What is digital TV

Similar to analogue, digital signals can be transmitted by satellite, cable and over-the-air using radio waves. A signal in this form is a sequence of 0 and 1. From computer science it is known that one means the presence of voltage, zero means the absence. In this case, before sending, the waves are compressed and encoded into MPEG format. This avoids picking up interference and results in a clear image. The tuner is responsible for capturing and decoding the signal. A tuner is a special set-top box that connects to a TV and is capable of processing a signal in one or more broadcast formats.

To use digital television, you need to purchase a tuner and connect it to a standard analog device.But with the expansion of digital broadcasting, manufacturers began to produce modernized models. A digital device is a regular analog TV with a built-in tuner that decodes one or more broadcast formats. Different countries use different broadcast formats.

Important! For CIS countries this is the DVB-T2 format. But such models of different brands have different built-in tuners. Therefore, when choosing a device, it is necessary to consider what formats its receiver can decode.

Characteristics of digital TV

Everyone knows that the more expensive a product is, the better quality it is. However, choosing such a model requires matching not only quality, but also individual needs for certain functions.

To navigate well when choosing a TV, you should pay attention to the following important characteristics:

1. Screen resolution: affects image clarity. HD Ready - medium quality, great for screens smaller than 24 inches. Full HD - high quality, image clarity on large screen sizes. It makes no sense to choose a small TV with Full HD - the image quality is not noticeable on small screens.
2. UDTV or HDTV: technology that improves sound and image quality when using digital broadcasting. HDTV stands for High Definition Television, UDTV stands for Ultra High Definition.
3. Availability of multimedia connectors - HDMI, USB, SCART, VGA: These connectors allow you to connect many devices to the TV - computers, mobile phones, video cameras, flash drives and more.
4. SmartTV technology support: a standard TV gains the ability to use and install various applications that greatly expand its range of capabilities.
5. Built-in digital tuner and analog jack: If you have a standard antenna jack, you should pay special attention to what digital signal formats the tuner supports.

Main advantages of digital TVs

Compared to the analog model, this model is able to reproduce a clear picture without loss of quality or annoying interference. The digital signal does not get lost in bad weather conditions when the analog signal stops broadcasting. There is no need to separately purchase a tuner: the device is initially built into the TV. You can always choose digital or analogue TV viewing. The signal provides the device not only with a clear image, but also with a high quality audio signal. Additional features that allow you to read data from portable devices and computers or synchronously display the device interface directly on the screen.

In terms of price, such devices are superior to their ancestor. However, the high cost is fully compensated by rich functionality and clear images. Therefore, such a model is the right choice, which will undoubtedly bring only positive emotions from watching your favorite TV shows.