Varieties of antenna cables. Choosing a good TV antenna cable

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In about why the signal jumps has already been mentioned, in order to avoid some problems when receiving digital television, it is better to use a high-quality television cable when installing the antenna, which one is better to choose and why I will try to explain.

Cable device

I usually work with SAT 50 cable, and to make it less clear why I prefer it, and which of the characteristics are most important, let's look at the coaxial cable design. The figure above shows what it consists of.

1. Outer shell. Durability depends on its quality.
2. Braid. The most important parameter. Outer conductor. The resistance, the quality of the shielding, that is, the immunity from external electromagnetic interference, depends on the density of the weaving and the material.
3. Foil. Internal screen.
4. Dielectric. The most important parameter. The characteristic impedance and signal attenuation depend on the material and quality.
5. Central vein. Inner conductor. The signal transmission distance and bending radius depend on the material.

It used to be accepted that the black wire is for outdoor installation, now this is no longer so critical, for example, the SAT 703 cable, having a white color, can be used for both indoor and outdoor work, and the strips on it serve for ease of wiring so as not to get confused when laying cables, where is cable TV, where is terrestrial, etc.

Still, I recommend that if you want to buy a durable wire, then take it with black insulation or look at the characteristics of the one you are interested in before purchasing. As already mentioned, I think the best - although SAT 50, the RG 6U with a black protective shell is not so bad.

The braid can be made of copper, aluminum or copper-plated conductors with different weaving density. The more conductors the braid contains, the higher the protection against external interference. For example, TV cable RG 6 has 48, and SAT 703 has 64 conductors. It should also be noted that the copper braid provides better parameters, but its use increases the cost of the cable.

In front of the dielectric there is a layer of aluminum foil on a polyester substrate. The use of double shielding significantly improves the performance of the coaxial cable.

The center conductor can be made of copper or copper clad steel for increased strength.

The use of expanded polyethylene (PEE) as a dielectric reduces polarization losses and attenuation of the signal. When choosing a television cable, it is better to opt for just this.

Choosing a cable

The most widespread today, perhaps, is the RG-6U cable, with quite satisfactory characteristics. It can be purchased in many stores, while it is most often offered with a white outer shell and although sellers claim that it can be used as a street one, it is better to look for it with black insulation. As a television, it is not the best, mainly due to a quick failure when used outdoors and a higher attenuation coefficient. So with a longer cable length, for high-quality TV signal reception, it is better to look for a better one.

The best in terms of price-quality characteristics, in my opinion, is the SAT 50 television cable, this is an analogue of the SAT 703 wire, having almost identical parameters, but SAT 50 is somewhat cheaper.

Feature Sat 703:

1. The central core diameter is 1.13 mm.
2. Cable thickness - 6.6 mm.
3. The minimum bending radius is 70 mm.
4. Maximum current - 8 A.
5. Frequency range from 5 to 2150 MHz.
6. Characteristic impedance - 75 Ohm.
7. Attenuation at 862 MHz is 18 dB / 100 m.
8. Shielding factor -> 80 dB.
9. The linear capacity is 52 pF / m.
10. Operating temperature range from -40 ° С to + 80 ° С.
11. The permissible operating humidity is 100%.
12. The minimum installation temperature is -5 ° C.
13. Service life - 15 years.

As already mentioned, these cables have almost the same parameters. The difference between them is in the thickness of the central core, for sat 50 it is 0.02 mm thinner and has an aluminum braid instead of a copper-plated one.

Even the best antenna will fail if you are using poor quality TV cable. And together with its illiterate laying, problems with the correct reception of television signals will certainly arise. As a rule, information about it is included in its specification or printed directly on the outer shell. However, we cannot always verify this data, and it happens that even this information is not always reliable! How do you understand which TV cable is better? All you need is basic knowledge and a little observation - below we offer 7 practical ways.

Coaxial cable consists of several components that determine its properties and quality. It consists of two conductors, the axes of which are combined, that is, they coincide. This is the principle of coaxiality (alignment). The outer conductor shields the inner conductor.

How does it work

The standard structure of a coaxial is as follows: a metal core (usually a strand of a copper conductor), a polyethylene or Teflon dielectric (rarely), an outer conductor: braided wire braid (option - an additional metallized layer, foil and copper braid), PVC sheath.

1. inner conductor, affects the quality of signal transmission;
2. dielectric - a layer of plastic;
3. metallized layer (a combination of copper with polyester or a combination of aluminum and polyester);
4. metal braid, the denser its weaving, the higher the quality;
5. outer sheath for protection against moisture and radiation, on it you will find the manufacturer's mark.

Where is used

Coaxial cable is used for:

• signal reception - TV, FM-radio;
• signal transmission: 1.8 MHz to 3 GHz;
• for high frequency connections between devices;
• in data transmission networks, in measuring instruments.

Which cable should I use for my TV? Definitely high quality. Quality is a parameter that cannot be neglected, especially when it comes to receiving a digital signal. Here is the relationship: if you have good reception, but the signal is not important, the transmitted image will be distorted. Conversely, good quality transmission will not make up for poor reception quality.

Coaxials, as they are often called, are characterized by generally accepted criteria:

• resistance (Ohm);
• signal attenuation (losses at 10, 100 and 1000 MHz, indicated in dB per 100 m);
• permissible power or maximum operating voltage (kV);
• wave propagation coefficient.

Choosing a TV cable will also be correct for the following characteristics:

• diameter of the cable cord (mm);
• flexibility;
• dielectric material;
• material of execution of the outer insulating layer.

The most common coax for home use is flexible and has a diameter of 6 mm. And this is justified: with rigid cables, problems can arise if their installation requires small bending radii.

Larger coaxial diameters are designed to transmit higher powers. Their black outer shell indicates that they are for external use, because they are protected from the damaging ultraviolet radiation. White coated cable products are used indoors as they resist burning.

Marking

When you buy a domestic product, there are usually no difficulties with its designation.

• RK - radio frequency cable;
• 75 - conductor resistance 75 Ohm;
• 4.8 - diameter;
• 34 - the first number shows the insulation group, the heat resistance category. The second digit is the serial number of the development;
• TU - technical manufacturing conditions.

But the labeling of imported cables can be confusing. Meanwhile, here is the definition of Western standards:

• DELINK - manufacturer;
• SAT-752 - name;
• Cu / Cu - material of the center conductor and braid (Cuprum - copper);
• 1.13 - thickness of the central core;
• 0.12 * 64 - thickness and density of the braid;
• Cu-foil - full copper;
• Coaxial cable - coaxial cable;
• 75 OHM - conductor resistance 75 Ohm;
• ISO 9001-2000 - certificate of conformity.

Choosing quality

So how will you test the quality of your cable? For the following seven signs!

Appointment

Outer insulation not only resists external influences and mechanical damage - what it is made of largely determines the properties of the cable wire.

The most commonly used PVC-coated cable cords. You can choose them for wiring in the apartment. The light-stabilized polyethylene cover features outdoor cords. In addition, outdoor cables have a protective gel layer from weather and sunlight. By removing a section of insulation, you can see if there is a gel-like lubricant underneath that protects the inner surface of the cable from moisture.

Outer sheath strength

Just try to remove the outer layer by hand. If the PVC or PE coating is weak, easily slides off the braid or foil layer, lengthening and stretching, this no longer guarantees sufficient strength of the cable.

Shielding layer quality

The shielding layer is an aluminum or copper foil wound on a dielectric. Its task is to shield the signal passing inside the cable from external electromagnetic waves that can interfere. It also prevents the signal from getting outside so that it does not weaken. For both conditions to be met, the foil must be glued to the dielectric layer. This can be easily verified by removing part of the shell and examining the shielding layer. If the foil moves freely along the dielectric layer, this means that it has not been glued, which means that when laying, when it is necessary to bend the wire properly, the film will slightly open the dielectric and create an unprotected "gap" through which signals will penetrate.

Braid density

The most common braiding is copper or aluminum wire mesh with a diameter of about 0.12 mm. The higher the density of the braid (more wires), the higher the electromagnetic density of the cable. This is another barrier to protect the transmitted signal from interference.

At first glance, the density of weaving is not easy to assess. Pay attention to the interlacing of the hairs, at what angle? If they are laid freely, longitudinally, then we are dealing with a thin braid. And vice versa, if they form a dense mesh covering the entire wire, then the covering of the braid is dense, “sealed”. The signal will be under reliable protection.

Dielectric test

The dielectric is a polymer layer made mainly of polyisobutylene. It is important that this material is foamed in a physical way. Foaming chemically does not have a long-term effect - after a few years, the dielectric will collapse. A brittle dielectric is a 100% risk of displacement of the central core and loss of coaxiality. You cannot use such a wire for.

Unfortunately, the nature of such foaming is difficult to analyze without special tools. But is it possible to check whether the dielectric is dense and whether it is well "welded" to both the core and the foil (screen)? This is key when bending the cable and determines its allowable bending radius.

Coaxial class

The cable class characterizes the degree of electromagnetic leakage. The higher the class, the greater its density and resistance to external interference. Higher tightness is achieved by choosing the type and number of screens and braids used. Distinguish between cable wires:

• two-layer - two layers inside: foil + braid;
• three-layer - foil + braid + foil;
• four-layer - braid + foil + braid + foil.

Of course, the more the number of layers, the higher the electromagnetic density, the higher the class and quality of the cabling. To choose the right TV cable, you need to see what class of it we are dealing with. It is enough to "clean" it layer by layer, reaching the dielectric.

Core type and thickness

The type of inner core and its thickness are directly related to the signal attenuation in the cable. Low attenuation cables maintain consistent signal quality along their entire length to the receiver.

Coax cores can be made of copper or copper-plated steel. Copper has better conductive properties and reduces resistance to electrical charges. Therefore, it is more commonly used in various types of cables. In turn, the diameter of the wire increases the active conducting surface and decreases the resistance for these charges.

If the core is soft and does not change color after a little scraping or notching, you can be sure that you are dealing with copper wire. However, if the center wire is rigid, and after peeling the top layer of copper, the silvery color of the steel clearly appears, then you have a copper-plated wire.

Let's sum up

If the moment has come to choose, it is better to choose the cable that fulfills all the conditions mentioned:

1. inner core thickness exceeds 1 mm;
2. the shielding film is glued to the physically foamed dielectric;
3. has triple or quadruple insulation;
4. the density of the braid is at least 64% (densely spaced wires with a thickness of at least 0.12 mm);
5. the coating of the outer insulating layer is adapted to the purpose of the cable;
6. the maximum attenuation at frequencies of 862 MHz and 2150 MHz, respectively, is lower: 21 dB and 32 dB (parameter for 100 meters of wire).

By making your choice of antenna cable according to these rules, you can be sure that you are dealing with a product of excellent quality that you can count on performing, both for analog and for.

Buyers often complain about poor TV signal in bad weather conditions. This may be due to poor quality tv cable... Vendors often assemble equipment from products that are not of high quality. This reduces the cost of the equipment, and sellers can make a large mark-up.

In order not to fall for tricks, you need to know which wire to choose. This is what we will talk about in our article.

Types of cables

There are four types:

TV cable which is better

We will disassemble the most common option TV wire - coaxial. It is produced under various brands. But, they all have a characteristic impedance of 75 ohms. With the help of such a television wire, you can connect several TVs. So, what brands are:

• RG-6 cable. Produced under a Russian brand. Manufactured in China. It has a copper or steel center vein, the thickness of which is 1 mm. The central vein is covered with polyethylene foam. The device itself consists of a screen, which is made of foil, copper or aluminum braid, and a protective shell, which is made of PVC. The thickness of the entire wire is 6–6.8 mm. This brand is used to connect digital, cable or conventional television. The price for such a cable is small, only 10 rubles per meter. You can buy it in the online store.
• PK-75 cable. This brand is analogous to the previous one. Produced in our country. Copper core, 1 mm thick. Screen made of copper or double aluminum lavsan and tinned copper. The cable has a single shield. Most often used for cable TV. If there is a double screen, then satellite TV can also be connected inside the building.
• RG-5 cable. This cable brand is distinguished by its thickness, which is 0.58 mm. Outside diameter - 6 mm. The cable is designed to transmit any kind of signal. Also broadcasts satellite TV. Provided that the distance is no more than 190 m. Due to its thinness, the cable cannot pick up a signal at a distance of more than 190 m. The picture will be of poor quality and the signal is weak.
• Worth noting: Model RG-5 and other similar variants are used for the same device. Due to its fine structure, it often breaks. It is most difficult to mount in sockets and connectors.

Foreign TV wires

Let's highlight several options that are produced outside our country:

The coaxial version has many brands that differ not only in characteristics, but also in price.

How to choose the best TV cable

When choosing a cable for a TV, you need to decide which signal you need to catch. That is, what kind of television will be:

• Digital.
• Essential.

If you choose a device for terrestrial television, then digital will work with interference or not work at all. In this case need to pay attention on the following features:

So, we looked at which cable for your TV to choose. For a cable to work well, you need to choose the right cable. You can choose a cable for cable TV according to the following criteria: cross-section 6.5 mm, with two screens and a well-known brand. You can buy the device in the online store.

Until now, the signal to many televisions in our apartments is supplied by cable. Neglecting its selection can negatively affect the image, even if edited correctly. To avoid such troubles, it is not enough to measure the length required for connection. Before buying, you should figure out how to choose an antenna cable.

In technical documentation, a television or antenna cable can be designated as coaxial (coaxial). The term characterizes the principle of its operation, when both conductors (central core and braid) provide transmission in the same direction over the entire width of the section ("standing wave" effect), which reduces radiation losses to a minimum.

Its construction is standard and in most cases includes four layers:

1. central vein,
2. polyethylene foam insulation,
3. outer conductor screen made of aluminum foil and braid,
4. sheath made of polyvinyl chloride.

The market offers a large selection of imported and domestic cable products of various prices. The budget option increases the risk of low-quality TV broadcast, the choice of expensive products is not always justified from a technical point of view. The performance characteristics of an expensive cable may not be much higher than that of an average-priced equivalent. It is much more important to study the main technical parameters of the proposed purchase:

• resistance and attenuation,
• central core material,
• composition and density of the braid,
• shell quality,
• diameter.

Outer cover marking

Many of these criteria can be determined from the information on the shell. It is applied every meter, and its presence is mandatory. According to the standard, the data are indicated in the following order:

1. manufacturer,
2. brand in alphanumeric designation,
3. the number of cores of the shield conductor,
4. quality,
5. wave impedance,
6. footage.

On the sheath, it may look like this: CABLETECH RG-6U / 48 HIGH QUALITY COAXIAL CABLE 75 OHM 0.66 M. More detailed information can be obtained from the technical documentation that comes with the cable.

Wave resistance

Any television device used in everyday life is designed for a wave impedance of 75 Ohm. The TV cable you are purchasing must have the appropriate resistance. If this indicator turns out to be higher, then the broadcast quality will deteriorate significantly or it will be unsuitable for transmitting a television signal. Along with the resistance, an important characteristic is the attenuation at the appropriate frequency and length. The lower this figure is, the better TV coverage will be.

Center conductor

The signal is directly influenced by the material of the conductor. Manufacturers use copper, copper or tin plated steel for its manufacture. Copper is the preferred option, which is guaranteed to provide excellent reception, but is more expensive. The steel conductor has a lower price, but the broadcast may not be the best. The material of the conductor can be easily identified by the cut; the steel core will have a silvery color.

The thickness of the core affects the television image and the range of its transmission. A larger diameter will mean less resistance, and mean a longer transmission distance without interference and loss of stability. The flip side of thickening is reduced flexibility.

A single-core cable is usually used to connect the antenna. If a large number of bends are expected horizontally and vertically, then stranded conductors with greater flexibility and resistance to metal fatigue can be used. In this case, the quality of the signal may suffer.

Braid material and density (conductor-shield)

The best material for making it is copper. It is most effective for protecting the signal from external electromagnetic interference. The next important indicator will be the number of fine hairs in the braid, intertwined in a certain way. The greater their number, the less external interference the structure passes through and the better the television broadcast. The maximum number of such braided cores can be up to 100.

A sign of quality products will be the presence of a screen made of aluminum foil, under a braid. It protects conductors from mutual pickup and internal interference. In the technical documentation, the effectiveness of the shield conductor is referred to as noise immunity. For good antenna cables, it should be at least 80%.

Shell quality

The outer shell is usually made of elastic plastic and protects the inner structure from damage. The insulation should be solid, resistant to external influences, moderately elastic in order to allow bending without damaging the outer layer. It is not difficult to check it, it is enough to try to knock off the shell with a fingernail, and if there is even a slight detachment of the insulation, then it is better to put such a product aside.

Diameter

The store offers products of various thicknesses. The value of this indicator has a direct impact on the permissible bending radius. A cable with a diameter of 6 mm and more usually has a bend of 70 mm, its cousins ​​of a smaller diameter bend with a smaller radius. This indicator should be taken into account if the installation perimeter is too complex, with a lot of bends and narrow openings. But for wiring from the antenna to the TV in standard conditions, a thickness of at least 6 mm is recommended. It is better suited for mating with standard connectors and jacks, and installation is not much more difficult than working with a thinner analog.

To connect the TV to a cable connection or antenna, you need to buy a special cable, process its ends and put on special plugs. If all the preparatory moments for connecting the TV are carried out incorrectly, analog channels, like digital ones, will show a low-quality picture with a bad image and interference. This will happen because the antenna cable for the TV is losing signal somewhere or the installation was made with errors.

Choosing a TV cable

Finding high-quality and necessary materials for connecting a TV is the most important event. Even the most advanced and modern signal source and properly fitted plugs cannot guarantee a high quality picture if the wrong TV cable is used. Therefore, the question arises of how to choose the right TV materials to connect.

How to choose an antenna cable for your TV?

Before you go to buy everything you need, you should understand the principle of operation of high-frequency current in the cable. In a home power grid, current flows in the wire across the entire cross section. The television signal flows through the antenna conductor in a completely different way. Everyone knows how water is squeezed out in a washing machine: the higher the speed, the stronger and faster, under the influence of centrifugal force, water is removed from the laundry. For example, you can also cite one of the moments of childhood, when we rode on a carousel, and how this force pressed us into the back of the chairs, pushing us out.

An antenna cable for a TV works in the same way, more precisely, the signal current that moves in it. The higher the frequency signal, the closer to the surface of the cable it is distributed. If a current with a frequency of 1000 MHz is passed simultaneously through a 10 mm copper wire and a copper tube with a wall thickness of 1 mm, then the losses will be the same. Therefore, in military and space technologies for the production of antenna cables, thin layers of gold or silver are used, which prevent severe signal loss. This is a very expensive method; it is not used in domestic conditions.

Due to the fact that the TV signal in the cable is small, it is impossible to measure its frequency at home without expensive devices. Only after connecting the cable will it be possible to find out the quality of the transmitting signal.

Antenna cable for TV. Which one is better to choose?

Today, the electronic goods market offers various materials for connecting to a signal source, the cost of which varies over a wide range. All of them differ from each other not only in price, but also in the quality of performance. The most popular and widespread is the coaxial antenna cable for TV, which is presented by different manufacturers and brands. Such a cable is successfully used to work with analog and digital television signals and even for high-frequency satellite antennas. The cable markings indicate the size of the signal loss.

Choosing the right material

What is the best TV antenna cable to buy? Experts advise when buying it to pay close attention to the markings on the surface of the cable. It should have a characteristic impedance of 75 ohms. All television devices are designed for such parameters.

The diameter of the cable sheath cannot be less than 6 mm. The core and braid must be copper. These are the characteristics of cables of SAT 703B and DG 113 brands. But the RG 6U brand has a steel central core, which is electroplated with copper, aluminum foil is used for the screen, and copper alloy is used for braiding. Such an antenna cable for a TV is a budget option. Thus, it becomes clear what material should be taken to connect to the signal source.

Connection process

You do not need to invite special workers to connect to the TV. You can do everything on your own if you follow the recommendations.

The analog and digital signal in the cable is only thousandths of a volt, so connecting the antenna cable to the TV is not dangerous for humans. It can be easily cut, while the other end can be included in the device. It is also absolutely safe if there is a short circuit between the core and the screen film.

We install the plug on the cable

The plugs on sale can be of three types, depending on the diameter of the cable. Therefore, when buying this device, it is necessary to check that it fits the antenna wire. Most experts advise purchasing the F-plug as it matches the signals coming from analog and digital sources.

How to connect the antenna cable to the TV? This technology is very simple. First, you need to split the cable itself, wrap the screen film, you can not do this, but the plug is held tighter in the first case, and screw on the connector.

In order for everything to work out neatly, you should carefully cut the top layer of the cable with a clerical knife, being careful not to damage the screen film. The incision should be several centimeters long.

After the cut, the upper part is folded back and cut off, since it is no longer needed. Foil and braid are wrapped back.

There is one secret that many do not know: aluminum foil from the inside is processed with a thin layer of plastic for strength, it is impossible to clean it. If you put a nozzle on it, then the contact will be very poor. To prevent this from happening, the folded foil (half of it) should be folded back. Thus, the conductive layer will be on the outside.

There are times when the diameter of the plug is larger than the wire. Therefore, how to make an antenna cable for a TV so that the attachment does not fall off and the signal quality is not disturbed? To do this, the end of the cable is wrapped with electrical tape, then the plug itself will not go anywhere.

Then the insulation of the core is removed, a nozzle is put on the foil or electrical tape, a part of the unnecessary core that exceeds 3 mm is bite off with pliers, and that's it - the cable for connecting to the TV is ready.

Sometimes the design of the TV or the location of it does not allow you to connect the antenna directly. In this case, 90 ° bent plugs are commercially available, which are perfect for any position.

Old types of attachments

Before the advent of all-metal plugs, nozzles of a different design were used. They didn't need soldering either, but they wore a little differently. First, the upper metal part was unscrewed from the plastic base. Then the main body was put on the antenna cable for the TV, the winding with the screen was cut and the rest of the plug was screwed on top.

If there are no attachments at hand

It often happens in life when you need to find something, but it is not. It happens that you urgently need to connect the TV to the antenna, but there is no plug at hand. Is it possible to get out of this situation? Of course you can, because the cable can be connected without a nozzle. To do this, remove the top cover of the cable 5 centimeters long, turn off the screen, remove the insulating material and bend the core into a loop. It is advisable to wrap the foil with electrical tape.

To prevent the wire from falling out of the socket, fix it with matches or toothpicks.

Bad signal

There are times when there is a sharp deterioration in the image quality of the picture. There can be various reasons for this, the most common of which is cable damage. How to fix an antenna cable for a TV if a break has been found? After all, here you cannot act as with an ordinary wire: twisted the gap together and insulated the place of twisting.

To get out of this situation, there are special metal connectors on sale that look like a plug that is connected to a TV. Having found the place of damage on the cable, it is divided into two parts. Each part is cleaned as described above (as when preparing the wire for putting on the nozzle). After preparing the parts of the cable, they are inserted into the connector and tightened with a special nut.

If there is not enough length

The extension of the wire takes place in the same way. Many found themselves in a situation when they moved furniture with a TV or outweighed it if it was wall-mounted, and now there is not enough cable to connect. Therefore, the question arises of how to lengthen the antenna cable for the TV.

In the same way, the connector is taken and the required length is built up. However, there are a couple of "buts" that you need to know:

1. When lengthening the cable, it is advisable to buy exactly the same brand of wire that is currently available. Never take a cable with a lesser marking. Otherwise, the signal quality will deteriorate.

2. When adding and connecting a TV cable, even if everything is done carefully, the image quality may drop somewhat. No matter how well the connectors are screwed on, breaking the solid core will still affect the signal for the worse. But it also depends on the transmitting source: if it is strong enough, then a cable breakage and its subsequent connection will not affect the picture quality.

Connecting multiple television sets

Connecting multiple TVs to a network or antenna that carries an analog or digital signal is easy. The only thing that will need to be put on is not one plug, but several. For such a case, you can buy a special splitter, popularly called "crab" or "splitter".

This fixture has one antenna input and multiple outputs for other wires. In order for the "crab" to function properly, all of its outputs are connected to television devices. If there is a pair of outputs, then two devices are connected, if three - then to three TVs. There should be no free exits. If an unused connector remains, then a plug should be installed on it, but the signal quality will deteriorate. Therefore, it is necessary to purchase a "crab" with as many outputs as required to power the devices.

Experts emphasize that when the cable is connected through a “splitter”, the signal quality will still be lower, even if some TV does not work. This is due to the loss of current in the "crab" itself and in the additional wire. There is even a table like this:

Two TVs connected - signal loss - 30%.

If the incoming analog or digital signal is already weak, the image quality will drop sharply due to the connected crab. Thus, the more devices are connected, the worse the television picture will be. However, in cities where signal sources are located nearby, which in addition pass through special amplifiers, such problems practically do not happen. Residents of rural areas can face similar difficulties, and even then, if they still have not a satellite dish, but a simple analog antenna.

Amplifiers

If suddenly after connecting the "crab" the signal becomes worse, then you can put a special device in front of it - a television signal amplifier. Such a device is separately powered to the electrical network. It should be placed as close to the antenna or TV as possible. There are models of such devices with several outputs. They are set if you want to connect a certain number of television sets.

Outcome

In conclusion, I would like to add that knowing how to choose an antenna cable for a TV, and the ability to properly mount it, are the most important points in connecting an antenna to a receiver. To do this, you should buy a good and high quality wire. Now in many houses and apartments they hide television cables in the wall, in a Western manner, with only a special outlet for the antenna. And this is very good, since the cable is not conspicuous and is safe and sound without damage.

If this is not possible, then it is recommended to at least close the wire in a special plastic box. After all, if it is damaged, the image quality will drop. It is best to avoid this so that you do not pull a new cable or put in connectors, which can also affect the loss of signal.