Select antenna for the TV

Buying an expensive high tv screen resolution does not always provide image quality. An important element of the broadcast is a signal receiver capable of ensuring the quality of its transmission. To determine its type, it is necessary to make a choice regarding the broadcast channels. So, for satellite TV only satellite dish. How to choose an antenna for a TV c broadcast analog and digital television?

TV receivers classification and their characteristics

The signal can be received by different device types. Much depends on the distance of the tower and the direction of the signal: direct or refracted. The channels are also broadcast at a certain frequency, part in the meter band, some in the decimeter field.In this regard, the classification of antennas is as follows.

By location

1. Indoor antenna able to catch channels in the case of direct visibility of the repeater, which is not cluttered with skyscrapers. With its considerable distance, you should use an amplifier.
   

2. Outdoor receivers (street). Connecting an external antenna is made when it is impossible to catch the signal by the indoor unit. This happens in cases where the visibility of the radio station is limited, and more radio wave direction options are needed. This device is mounted on the roof of the house and is a powerful design with electronics hidden in a box that communicates with the TV. cable. The important point is to use solid cable without additional connections. If the house is high-rise, and the apartment is located on the lower floors, there is a high probability of breaking contacts in places of twists that will block the reception of the TV signal.
   

3. Hybrid option. This device is a reduced size outdoor antenna with the same capabilities. Depending on the situation, it can be installed on the roof, balcony or attached outside the window to the external wall of the house.
   

The last type of antennas is very popular because of its compactness and functionality.

By the size of the received frequency range

Each channel has its own frequency range, the number of channels used depends on the connection to a particular frequency. Broadband models catch most broadcast stations. The design of such receiving elements consists of telescopic wires in a frame. Narrowband design can be installed when there is an accurate understanding of the presence of channels in a given locality and their frequencies. The receiver is made in the form of telescopic rods or has the form of a frame, i.e. The signal is directed to the reception of a specific limited range. The operation of this version of the device is more common in rural areas.

Depending on the design, the antenna can be tuned to a different range.

1. Devices accepting meter wavesSuitable for receiving local and terrestrial channels.
2. Decimeter options expand the range of action, and through the TV tuner T2 will be able to transmit the broadcast of digital channels.
   

   Decimeter antenna for tv

3. All-wave. This antenna is directional type and is responsible for receiving a direct signal.Part of the design is aimed at receiving a direct signal, other elements are capable of receiving reflected or refracted waves.

The task of the device is to adopt the optimal signal variant, which allows to get the best image quality. The direct wave is the strongest and provides perfect video playback. But, if the terrain is relief, and between the house and the tower there are many buildings, there will definitely be a refraction of radio waves or their reflection.

Antenna Selection Criteria

The same design may react differently to radio waves due to its location. When moving or rearranging in an apartment, it may happen that the equipment is the same, and when you play the TV channel, problems begin. Violations may be of the following nature:

• extraneous noise;
• frame freeze;
• split fragment;
• flicker;
• the signal disappears for a few seconds and the background screen appears.

All of the above errors are caused by interference, bad antenna signal. To find out which antenna to buy for a TV, it is necessary to determine the location of the repeater, and designate the circle of the TV channels being watched. When the tower is not in sight and the direct signal is not in question, the easiest way is to find out on which antenna the equipment of the neighbors works, which is located in one part of the house. In the absence of such an opportunity, the information of interest is easily obtained through Google.

Caution should be exercised. when using an amplifier. Its application will be justified if the broadcasting station is located at a great distance, more than 50 km. In a small range from the tower, there is a chance that the antenna will catch the direct signal and the reflected elements, which in the end will give interference and create confusion. Therefore, not in all cases, an expensive and multifunctional device will bring benefits.

Reflector design effective in areas with densely located high-rise buildings. If there is an obstacle between the repeater and the receiver of the signal, the device must be positioned in the direction of the high-rise, which is located behind the TV tower. In this situation, the signal will be reflected. It is, of course, weaker than direct, but sufficient for viewing channels.

An important point is the accuracy of the performance of the reflectors, capable of collecting small signals bit by bit and focus them into one.

The complexity of the choice of the receiver lies in the fact that the broadcasting of favorite channels can occur in different directions and at different distances. In this case, fit outdoor universal antennainstalled at the highest possible height. Ideally - this is the roof of the house.

To ensure a comfortable viewing of TV channels, the device must be properly assembled and installed, as well as focus the direction and make the correct connection. To eliminate technical errors, it is better to use new plugs and a single cable. If you have certain technical knowledge, it is quite possible not only to install, but even to construct do it yourself antenna. In the absence of experience in the selection and tuning of the antenna, you can contact a specialist who will professionally perform the work and tune all possible TV channels.