Signal amplifier to the antenna of the TV: to give and at home, the best model reviews

To make sure the whole variety of broadcast channels, you may need to use the antenna amplifier

Why you need a TV antenna amplifier

TV in the modern world is the most massive means of obtaining and disseminating information. This fact leads to the fact that the increase in the height of transmission towers is not just the achievement of engineering thought, but also a way to expand a stable broadcast band. It is possible to achieve only in direct sight of the transmitter: when deleting observed signal decrease, with spoils both analog and digital broadcasting.

Admission stability is ensured only in the immediate vicinity of the transponder

In the first case without use of the antenna amplifier of the television signal observed deterioration and appearance of increased noise. In digital cable or type of connection reduces the data rate.

To improve the quality of the received television programs is possible by using a special device - the antenna amplifier TV signal. It is worth noting that the use of this accessory will be necessary only to residents of rural areas who do not have a centralized antenna located on the roof.

Structure and working principle of the antenna amplifier television signal

Amplifier TV signal for giving or apartments have a fairly simple device. This two boards which are connected to each other by special circuits for reducing the amount of noise that may be generated during operation.

To adjust the frequency band oscillation circuit provided with a capacitor, and the input acts as a high pass filter. It has a number of operating frequencies. In the first range generated frequency characteristics close to 48.5 MHz and in the second they are equal to 160 MHz. The presence of the resistor in the circuit diagram enables exhibiting the desired mode.

By changing the resistance can be achieved exhibiting a voltage is 5 V and current is 5 A. This provides maximum amplification of the signal at delta 4.7 dB at 400 MHz.

Many of the presented antenna amplifiers for TV, which can be bought at electronics stores, demand for power supply of 12 V. This enables them to connect to the car battery. To achieve correct operation, it is possible to use a stabilizer in the form of a diode bridge and electrolyte.

You can connect an amplifier to the TV antenna to give straight to the source via a coaxial cable, but in this case required the use of the throttle. Direct TV receiver is connected through a capacitor.

Operation of the satellite signal amplifier is performed in the following way:

• coming from the antenna signal passes through a matching transformer;
• further it is fed to the first transistor, which is connected to the common emitter;
• in the final amplification of the signal is carried out with a parallel stabilizing the operating point;
• more linear signal is fed to the second stage transistors, wherein frequency correction is carried out;
• the output signal is amplified in the administration of the TV.

TONOTICE! (Click to see)

Mast mount allows you to get free access to a signal from the transponder, because it gives the opportunity to minimize the impact of interference

Types of amplifiers for antenna TV for cottages and homes

It is generally accepted division of all the amplifiers of the digital signal to the TV, which can be bought in the normal electrical shop. They are divided into types according to the frequency range and the installation site.

The frequency range

According to this criterion, all the models can be divided into three types. Depending on the selected category have different objectives, since each type is used to achieve a certain result. The devices can be:

• broadband. Devices that are most often used as part of a home room for the TV antenna with an amplifier. Their objective is to improve the quality of the broadcast immediately on a large number of receivers;

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• multiband. Devices, the use of which is suitable for host devices, which are located on the long masts. Most often, the use of this type occurs in private homes;
• range of. Amplifiers that are needed to ensure a quality of reception from a source located at a considerable distance from the receiver. Additionally signal correction function, these devices have the ability to reduce noises that appear with increasing cable length. Most often used to improve the broadcast digital TV format DVB-T

On-site

On this parameter all the models are divided into two types - depending on the features of the installation and setup of the device. So, all of the antenna amplifiers for TV on 20 channels or more can be:

• internalRepresenting a small fee which can be installed directly near the receiver. In this embodiment, the deterioration of signal can be observed input to the amplifier itself, due to losses in the cable;
• remote or mast, Located on a long pole at the location of the antenna. Due distal imposition they provide improved signal quality. But the main drawback of fragility can be considered as a strong wind or lightning strike eventually damage the unit or fully rendering it unusable.

Connecting an amplifier requires a power source is 5 or 12 volts.

There is also a division between active and passive amplifiers. In the first case the amplifier board is mounted directly on the housing of the antenna. This allows you to take a greater number of channels. But there are drawbacks: the frequent failure of the board under the influence of external factors and the gradual oxidation of the structural elements.

The second type involves the use of an external amplifier, which is acquired separately. It is more profitable option, but requires additional setup and installation of the device.

How to choose the power for the TV antenna

When the decision to acquire aerial amplifier for digital TV or analog broadcasting to be chosen not only on the range or the place of its location, but also take into account a number of technical characteristics:

• noise ratio. Here, the principle - the lower, the better the picture quality. It recommended acquiring device stated level below 3 dB;
• current consumption. Best apparatuses considered amplifiers, designed for consumption between 30 and 60 A;
• gain. This figure shows the relationship between the distance from the signal source to its consumer. It is recommended to choose the optimal ratio. This means that there is no reason to use an amplifier with line of sight relay. Otherwise, pick the device should be in view factor which is expressed in decibels;
• output signal value. Most considered acceptable rate of 100 dB / uV;
• frequency range, which should coincide with the same characteristics of a television receiver, otherwise the amplifier will be useless acquisition;
• type of antenna and the amplifier model.

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Ranking of the best antenna amplifier for home and garden

On the market there are a large number of antennas with built-in amplifiers. Among the available samples - both for receiving analog broadcasting devices, and for the "numbers".

«Extra» ASP-8

Russian model, which is a passive-phase antenna equipped with 4 pairs of V-shaped vibrators. One of the main distinguishing feature is the possibility of upgrading for maximum signal gain. Working frequency device can receive up to 64 channels in the frequency range from 40 to 800 MHz.

Among the disadvantages of users say not the best build quality. But the manufacturer makes sure that when mounted on the mast antenna be able to withstand wind gusts up to 30 m / s. The cost model is 750 rubles.

"Meridian-12AF» by Locus

The device, despite the low price (1300 rubles) has earned a lot of positive reviews. it an antenna for receiving broadcasting outside facility. On the positive note buyers thought-out structure having sufficient rigidity, high gain capable of receiving the signal steady at a distance of 70 km from source. Compact model allows you to install it on the masts. The presence of anti-corrosion treatment ensures endurance for 10 years.

"Hummingbird" from REMO

Another antenna, wherein an acceptable cost with adequate signal quality amplification. Its value is 1400 rubles. Because this instance refers to the active model, it requires electrical connection. The adapter is the power regulator, which allows display with a maximum gain of 35 dB indicator. Metallic execution of all elements of the device makes it insensitive to temperature changes. It can accept both analog and digital channels. network cable length is not very big, so you need an extension cord.

Most amplifiers for aerials

You can buy a ready-made antenna, which is equipped with a signal amplification system, but you can purchase this item separately, to try to install it yourself.

Locus LA-31

Single-threaded type amplifier, which is designed to stabilize and improve signal quality. The maximum gain of the device is 22 dB, the variation occurs randomly. It requires protection against exposure to precipitation. unit cost - 335 rubles.

Amplifier DVB-T2

The product in China, despite dubious origin having good performance. The gain is the maximum value of 23 dB, and the noise level varies in the range of 2 to 3 dB. One of the merits can be considered sealed steel casing, which protects against atmospheric precipitation. The only weak point is the support frequencies ranging from 470 to 900 MHz. The cost model - 360 rubles.

Alcad AI-200

The unit of the Italian company, which is the most popular in Russia. This device provides a quality signal amplification, allowing fine adjustment of the centimeter and decimeter range. The noise figure of the accessory does not exceed 4.5 dB. One of the distinguishing features is a function of signal separation into two streams, which makes it possible to broadcast immediately on two receivers. Rating device parameters due to high quality and performance. kicker cost is 1400 rubles.

Indoor antenna with amplifier for the TV

Residents first floor apartment buildings may need to purchase an indoor antenna, equipped with a signal amplifier, because the surrounding objects create specific interference. Among these devices also have their leaders.

"Inter 2.0" from REMO

Apparatus Russian manufacture, which is a multifunction device having democratic price. The antenna has the ability to process digital direct 20, 10 and three analog radio signal. Availability of convenient control helps to make the necessary signal level to achieve maximum quality.

Among the benefits users report an affordable price, which is 890 rubles, attractive design and ease of installation. Special mention deserve power cables and antennas having the same length, which allows installation in any place. The disadvantages can be regarded as a periodic loss of stability and a low reception quality plastic material of the housing.

Harper ADVB-2120

The model, which has a wide range of characteristics. The antenna has a high frequency range from 87 to 862 MHz can be used for amplification of the digital and analog broadcasting. The original design is a device that allows you to conveniently fit it into any interior. The signal amplifier in this model is fed directly from the receiver or television receiver. A similar function imposes certain restrictions, but it is a positive quality in terms of compactness. The presence of a closed ring allows you to hang the antenna at any convenient object. The cost model is 570 rubles.

BAS-5310-USB Horizon from REMO

One of the best indoor antenna, which is also produced in the territory of the Russian Federation. It should be allocated among the advantages of not only the original look, but also comfortable fit, allowing to place the amplifier directly to the TV. Correct setting will allow to receive up to 69 channels. It is also possible to connect to the receiver via the USB port. The antenna is powered by a 5 volt power supply comes in the kit. The only drawback is considered to be a short cable. The cost model is 850 rubles.

Advantages and disadvantages of digital amplifiers and analogue TV signal

The main advantage of the use of the antenna amplifier is to improve the quality of the television broadcast. It is for this purpose used this category of equipment. But these devices have their drawbacks:

IMPORTANT! (Click to see)

Purchase of ready-made antenna with integrated amplifier eliminates the self-assembly procedure

Like the TV signal to enhance antenna cottage

There are several ways that can lead to achieving the desired results to improve the translation of a country house. They can try before purchasing an amplifier.

1. Change the antenna location. Should try to send it to the side repeater.
2. Replacement of the existing devices more powerful.
3. Reducing the number of items that can be screened.
4. Checking the integrity of the cable.
5. Increasing the number of antennas.

But the most effective may be the acquisition of the amplifier, whose purpose is to improve the received signal quality.

How to connect the antenna to the amplifier to the TV

To connect a separate amplifier is required to hold a series of manipulations. They are not as complicated as it is always possible to find video instructions on the Internet for a clear understanding of the process. connection scheme is as follows.

1. Coaxial cable stripper. After the required loosen the screws on the terminal for the antenna cable clip.
2. Further required to thread the wire so that the braid has come under bracket, and lived under the terminal - without short circuit.
3. Tighten the retaining screws.
4. Wear on the amplifier cover.
5. Put the antenna device through a pair of screw connections. This requires placing the appliance, printed conductors outwardly.
6. Tighten all nuts.
7. Connect the cable to the plug and the amplifier with the correct polarity.
8. De-energize the TV and connect the cable from the antenna to the receiver.
9. Connect the TV and the amplifier to the network and start watching.

The procedure for connecting the amplifier to the antenna is not the most difficult, but requires care and accuracy

Acquisition of the amplifier is a necessary measure in the absence of a stable broadcasting reception. Once again, see how it is necessary to carry out the installation, you can by watching the video. Should not be afraid to do it yourself, because the process is not particularly difficult.