Even in the century digital technologies and the total penetration of the Internet into all spheres of life, in many apartments the television signal is received via cable. The wrong attitude to its installation can negatively affect the quality of the received signal, even in the case of choosing the most modern and expensive material. In the article we will tell you how to connect a television cable in different ways, we will give recommendations to beginners.

Features of the cable

The television cable “comes” into the apartment from the floor board and is routed through the television receivers available in the house. In order to properly wire the TV cable around the apartment, you should follow some recommendations.

The main elements of a TV cable in a stripped and completely bare form

To avoid interference with the signal, it is recommended to place the cable away from the electrical wiring. A telephone wire or cable for the Internet does not interfere with the normal passage of a TV signal, and therefore the general laying of these communications in one cable channel is allowed. If it is impossible to avoid the joint placement of the electrical cable with the television, then you should purchase a TV cable with a core diameter of more than 1 mm with a double protective screen.

Throughout the apartment, the cable should be pulled in one piece, avoiding any connections and twists that affect the quality of the picture. Crossing the cable with electrical networks is not recommended, but if this cannot be avoided, then the intersection should be arranged strictly at an angle of 90 °. Read also the article: → "".

Cable distribution by rooms to ensure shielding and high quality contacts and is carried out using factory-made splitters. Do-it-yourself devices are unlikely to be able to give an acceptable signal quality. You should also exclude the connection of a television cable with sharp bends or in a bay - the quality of the picture on the screen can suffer greatly from this.

It is better to lay the section of the line going from the floor box to the apartment in an expanded cable channel, taking into account the possible inclusion of an alarm or an additional telephone line. To facilitate maintenance, splitters should be placed in places with free access.


 TV cable models may vary, but general principle connecting them is unchanged

How to choose the right cable

Even the most modern TV receiver and cable plugs cannot produce an acceptable image with an insufficiently high-quality cable. High-frequency TV signal currents flow a little differently than home electrical currents. The higher the frequency of the current, the closer to the edges of the main wire it flows, therefore, in the cables used in the military or space industry, in order to avoid a critical decrease in the quality of the television signal, they are treated with a silver or gold composition.

Choosing a cable to connect

When choosing a material, you must adhere to the following recommendations:

  • all designations must be present on the outer shell;
  • the resistance value of the product should be 75 ohms, because all television receivers are designed for this value;
  • the outer diameter must be more than less than 6 mm;
  • the main core and the shielding braid must be made of copper.

In the latter case, manufacturers often sin by striving to reduce the cost of products as much as possible by making the central core of steel and simply coating it with copper sputtering, braiding from copper alloys, and shielding from foil. Read also the article: → "".

TV cable marking

Consider the marking on the example of the Chinese television cable RG 6U, the most common in our country.

Cable marking example Russian production indicating the main characteristics and technical conditions

How to connect the cable to the plug

You can connect the plug to the cable on your own, especially since the TV signal voltage is too low to cause any harm to health. Even an unplugged cable is cut without fear of electric shock. There is no harm in shorting between the braid and the main core either. For different sizes cables, various plugs are produced, therefore, when choosing a cable, you need to pay attention to its diameter. F-plugs are the most commonly used.

First you need to cut the cable, which can be done in two ways:

  • with braid bend;
  • without twist.

The most reliable method is considered to be cutting with a twist, but if it is not possible to install the plug, then the second method is used. The cable is cut with a scalpel or a sharp knife: the outer sheath is carefully cut along the length without damaging the screen. When the cut is completed, the insulation is folded back and removed.


 A phased scheme for crimping a television cable with a braid bend and a 3-5 mm main core release

The copper braid and shielding foil are wrapped. In general, three types of shielding can be applied in TV cables:

  • aluminium foil;
  • copper braid;
  • aluminum foil with copper braid.

Aluminum foil for hardening with inside often covered with polyethylene. It is unlikely that it will be possible to strip the film without damaging the foil, therefore, to improve the contact of the screw-on plug with the foil, its bent part is slightly wrapped back so that the uninsulated piece of foil faces outward. If the cable diameter is too small, the end entering the plug is wrapped with electrical tape.

The insulation from the main core is removed in the usual way for many, similar to the removal of insulation from electrical wires, without damaging the core itself. Then the plug is wound onto the foil, and the excess of the main core is bitten off with wire cutters or cut off with a knife, leaving a length of about 3 mm outside.

Connecting the cable to the antenna

Connecting the TV cable to the antenna should be carried out with the obligatory observance of the rules for switching electrical appliances, guided by the diagrams available in the technical data sheet of the TV. To complete the work you will need:

  • splitter;
  • antenna cable;
  • antenna amplifier;
  • wire cutters;
  • a sharp knife or scalpel;
  • soldering iron.

The antenna amplifier is used when the signal is not strong enough or too weak. A splitter is useful for connecting several TVs to one antenna at once. Read also the article: → "".


The cable is connected directly to the TV antenna using screw clamps.

The cable, splitter and amplifier must be installed next to the routed cable. In an individual house the best place to accommodate all appliances is an attic. The end of the cable coming out of the antenna is connected to the amplifier through a special terminal. From the amplifier, the signal comes to the splitter, to which the television receivers in the house are connected. When connecting to a satellite dish, you will need to use a receiver to which a cable is connected via the antenna connector. The preparation of the cable is carried out in the same way as cutting it before connecting it to the plug.

Council number 1. Before connecting the TV, you must carefully check all the connections of the switching devices and the reliability of the installation of the plugs in the appropriate sockets. If the image is noisy or the signal is too weak, adjust the antenna amplifier settings.

Connecting to a splitter (splitter)

Nowadays, no one can be surprised by the presence of a TV in every room. A small problem is to feed the TV signal to all receivers, since in most cases the signal source is the same. The solution to this problem is to use an antenna splitter. The quality of the picture when connecting TV receivers through a splitter may deteriorate somewhat, but the connection process itself is not difficult and takes just a few minutes.

The step-by-step connection scheme can be represented as follows:

  • choosing the location of the splitter and fixing it in it;
  • removing plugs from used connectors;
  • cutting and connecting TV cable.

Connecting the cable in the shield

When laying or connecting the cable, it is not allowed to twist it into knots and bays, kinks or sharp bends that sharply degrade the quality of the received TV signal.

Tip number 2: The cable section that goes first from the shield to the apartment should be placed in a wide cable channel.

In the case when the cable connection in the ladder box must be carried out by soldering, the length of unshielded sections should be minimized, since their presence and length directly affects the quality of the signal and image. At the end of soldering, it is recommended to cover each contact under a layer of varnish - it is able to prevent the occurrence of foci of corrosion damage and the ingress of dust particles between the contacts. Dust adhering between the contacts causes the signal to deteriorate with increasing humidity: the image reproduced by an analog TV will snow heavily, and when a digital signal is transmitted, the image will simply disintegrate into pixels with an unpleasant squeak.


 Connecting a TV cable in the driveway is not difficult

FAQ

Question number 1. Is the F-plug for digital for digital TV signal transmission, or only for analog?

Despite the fact that this type of plug has been used for a long time, both its connector and characteristics allow you to fully enjoy not only analog (by the way, in the near future, permanently stopping broadcasting) television, but also digital and satellite TV signal.

Question number 2. What to do and what to do if the cable diameter turned out to be slightly smaller than the diameter of the internal thread of the plug? Indeed, in this case, reliable compression will not work.

Question number 3. If you install the plug in the appropriate socket, the TV cannot be placed close to the wall. What is the way out of this situation?

In this case, you should use an angled plug, which can be bought at almost any store selling electrical household appliances.

Question number 4. On old TVs Soviet-made The cable was connected to the plug by soldering. How to connect to it modern type cable?

If the signal quality deteriorates or the cable needs to be replaced due to poor contact, the plug and cable can be connected as before by soldering.

Question number 5. How can I connect several TVs to an antenna or cable TV network at once?

To connect several television receivers, you can use a special device - a splitter, also called a "divider" or "splitter".


 Using splitters to connect multiple TVs to one TV cable

Typical connection errors

  • Not everyone knows that the foil in the cable is covered by some manufacturers from the inside with polyethylene, which cannot be cleaned even with a scalpel. Plastic, even with the highest quality cable stripping, will prevent the creation of high-quality contact with the plug. To avoid signal distortion, it is recommended to wrap part of the unfolded foil in reverse side so that the conductive side is on the outside.
  • A typical mistake is getting the thinnest wires of the braid onto the main core of the cable when it is being compressed. Doing so may result in poor quality or intermittent signal dropouts. A common mistake when installing and laying a cable is placing it in the same plinth with electrical wiring. You can’t do this, otherwise the interference created can significantly spoil the mood when watching TV.

In the process of choosing a television cable, one has to deal with a wide variety of offers, which even experienced specialists cannot evaluate. That is why, before purchasing the desired coaxial cable for a TV, it is advisable to understand all the intricacies of its design and the main differences between different brands of this product (they are shown in the figure below).

From the variety of television (TV) cable samples offered by the market, we choose the only brand that is best suited for this particular situation. How to choose the right coaxial cable, without losing sight of even the smallest detail, will be discussed in this review.

TV cable design

The device of most products for cable television is almost the same, since they include the following parts of the same type:

  • Central core in the form of a thin copper conductor;
  • Polyurethane dielectric sheath insulating this core;
  • A layer of shielding foil;
  • Additional screen based on steel (copper-plated) wire;
  • PVC protective sheath.

Note! Because of this device of a television cable, it is sometimes called coaxial.

The inner insulating sheath performs the function assigned to it, and the outer PVC coating protects the entire cable from mechanical deformation and damage.

Purpose and parameters of the main components

The central core of the cable product can have two versions, in one of which it is made of copper-plated steel wire, and in the second - from pure copper. The copper conductor is used to transmit all types of television signal, as well as to power satellite TV converters via coaxial.

Additional Information. The cable for satellite television should also have only a copper central core (diameter - about one millimeter). In all other cases, a copper-plated wire will fit perfectly.

At the same time, it is possible to save on material costs with a relatively high quality of signal transmission.

The reliability of the existing screen braid determines how efficiently the TV signal is transmitted over the coaxial line, as well as the protection against interference induced from extraneous sources. Therefore, a special approach is needed to this part of the cable during its installation (in terms of cutting the braid and its reliable fixation).

For the manufacture of the screen film, aluminum foil (lavsan) is used, and the braid itself can be made on the basis of copper or tinned wire (sometimes the same aluminum is used for its manufacture). Choosing the right TV cable with such a design means obtaining a high shielding factor (about 60-80 dB, and in some cases up to 90 dB).

The polyethylene (PE) dielectric present in the inner part reliably protects the central core and at the same time isolates it from unwanted contact with the screen and outer braid. The outer PVC sheath, in addition to reliable protection against deformation, protects the cord from moisture, dust and strong temperature changes (when laying outside buildings and on strings).

Brands and characteristics

If you want to decide which TV cable is better, you should proceed from the fact that this product can be produced in various versions. The main brands are:

  • SAT 50, 703;
  • RG 6, 59;
  • as well as DG 113 and traditional RK 75.

The listed products for cable television have a characteristic wave impedance equal to 75 ohms and can be used to connect several TVs at once. Let's consider each of them in more detail.

Cable PK 75

This type of cable product is traditionally produced in Russia and has a long history going back to Soviet times. It contains the same central core of pure copper (diameter - 1 mm), around which is a dielectric of PE.

On top of this structure there is a shielding braid, made on the basis of thin copper wire or from a double layer of aluminum lavsan (foil and braid). Cable with a single layer of protective shielding, as a rule, is used in terrestrial and cable TV systems.

Products with double screen protection can also be used for digital TV systems, and they are usually laid in the interior of buildings.

This cable Russian brand but it is made in China. His central vein made of copper or steel wire with copper plating of millimeter thickness in a protective sheath of polyethylene. The total thickness of the wire, together with the insulating layer, braid and protective sheath, is approximately 6-6.8 mm (see figure).

Most often this type of wire is used in cable or conventional television, but sometimes it is also used for digital television. Cable products of this class belong to the cheapest varieties of products that have a very reasonable price.

RG 59 cable (RG-6 cable modification)

This type of RG-6 cable has a thinner central core (diameter - 0.5-0.58 mm) and an outer size of about 6.0 mm. It is ideal for transmission various kinds data, including satellite signals transmitted over distances up to 190 meters.

Important! Due to the low conductivity of a relatively thin center conductor, the signal attenuation in such a cable is halved (see the figure below).

The high level of loss in the RG 59 leads to a deterioration in image quality, which increases with each additional meter. This sample cable products can only be used for one receiver.

Its disadvantages are associated with the peculiarities of mounting a thin conductor, which is fixed with great difficulty in a coaxial connector and often breaks off when handled carelessly. In addition, large attenuation in a thin strand greatly attenuates the signal in series chains.

SAT 50, 703 and DG 113 cables

The manufacturer of these two types of cable products is the Italian company "Cavel". The first of these wires has a copper central core 1.0 mm thick, as well as a reinforced screen, equipped with foil and copper-tin braid.

Shielding factor - more than 60 dB.

PEG dielectric is used as the inner insulating sheath, and the outer protective coating is made of PVC. The overall diameter of this cable product is 6.6 mm, and its price per meter is slightly higher than other samples. SAT 50 is capable of transmitting all types of television signals and can work as part of cable, digital and satellite equipment.

The SAT 703 product has a slightly thicker central core (1.13 mm), its screen is arranged in the same way as in the previous case. The difference lies in the overall cable thickness of 6.6 mm and a shielding factor of around 80 dB. This cable has good transmission characteristics and can be used in any TV system, including satellite channels.

The DG 113 brand cable is produced by the same manufacturer, but, unlike the two considered models, it has a higher shielding factor (from 90 dB). It provides the highest quality broadcast with virtually no interference. However, the cost of one meter of this product, most often used for satellite dishes, one of the highest.

Which cable is better

If you want to find an answer to the rhetorical question about which television cable is better, you need to proceed from the following considerations.

For satellite TV, preference in all cases should be given to products Italian company"Cavel" (despite the relatively high cost).

The opinion of experts who consider it pointless to choose a separate cable for each of these cases will help determine which cable is required for simple, digital and cable television.

Additional Information. The fact is that the frequency channels for all the listed types of broadcasting practically do not differ from each other and fit in a limited range from 49 to 800 MHz.

This frequency gap can be covered by using any of the previously discussed types of cable products. If you have problems with what is better to choose: the Italian branded wire of the Cavel brand or the budget version of the PK-75, you should proceed only from financial possibilities. All intermediate offers of cable products should be considered as transitional between the two extreme options.

Summing up the material considered in this review, we note that even taking into account everything that has been said for digital or cable television, it would be much more preferable to use any product from the Cavel family. Despite the rather high cost of these cables, they can be used to provide high-quality broadcasting of any television sources and programs.

Video

For high-quality television broadcasting, not only the sufficient power of the incoming signal is important, but also the quality of the antenna wire. High-quality television cable will provide a powerful signal transmission without loss. It is necessary to choose the right wire for your TV in order to receive a strong enough TV signal and enjoy your favorite TV programs without interference.
Almost any wire for the antenna has a special marking. Here you can find basic information about the product.

Almost all television wires have the same design. The basis is the inner conductor (central core), which is covered with an insulating layer. A shielding layer in the form of a braid is located on top of the insulation. The construction is protected by a hard shell of insulation.
Cables with this structure are called coaxial.


The high-frequency current of the television signal flows through the central core. The higher the frequency of the signal, the closer to the surface it will flow. This means that at high frequencies, the current loss for cables of different sizes will be the same. To reduce these losses, space technology uses a surface layer of gold to prevent signal loss.
For home use, copper or steel wires are used. To reduce signal attenuation, the steel core of the cable is covered with a thin layer of copper. A coaxial cable with a steel core is cheaper, but is not able to transmit a signal from a satellite dish without large losses.
A copper core transmits a television signal of any nature without problems, including a signal from a satellite dish.

The shielding layer or braid protects the cable from external electromagnetic interference. The quality of the TV signal directly depends on the strength of the interference.
The shielding layer is made of aluminum foil. The braid is made of copper or aluminum thin wire.


For a shielded wire, a value is defined, called the shielding factor, which describes the degree of protection of the cable.

The inner insulating sheath protects the inner conductor from damage and also insulates from contact with the screen. It is made from plastic. In especially high-quality wires, fluoroplastic is used.

The outer protective shell protects the structure from mechanical damage, dust, moisture, and other external influences. It is made of polyvinyl chloride, polyethylene, or other insulating materials.

Cable selection

When choosing a cable, you must be guided by some recommendations:

  • Mandatory wave impedance of the television wire is 75 ohms. Cables with a different impedance are not compatible with the TV tuner and, as a result, cannot transmit a high-quality image.
  • Choose a coaxial cable with a diameter of at least 6mm. Thinner cables are flimsy and easily damaged.
  • The shielding factor of a good quality shielded wire is at least 60dB. To achieve the best degree of protection, it is better to choose a cable with a coefficient of at least 90 dB.
  • Study the cable carefully. If the product has an unpleasant smell, or there is no marking on it, then you most likely have a fake.µ
  • Try bending the cable. It should be easy to deform, but “wrinkles” should not appear on it. If they appear, then you have not the highest quality cable in your hands.

We present to your attention some brands and models of coaxial cables:


It is recommended to buy TV cables DG 13 - they are durable, reliable, and have many other advantages. If you are not able to buy such an expensive TV wire, then you can choose a cheaper option from the list.

For an overview of coaxial video cables, see below:

Compound

After purchasing a suitable cable, you need to connect it to your TV.
This stage is no less important than the choice of wire, since even the most expensive and high-quality product will not transmit a good signal if the connection is not made correctly.
Plug installation
It is advised to buy plugs from the same store where the cables are. Ask the seller to help you choose the right accessories.
The most common type of plug is the F-plug. It is designed to transmit both analog and digital television signals.

Connecting the plug to the antenna wire is very simple:

  1. With a clerical knife, make a circular incision of the upper protective layer to the screen shell a couple of centimeters long;
  2. After removing the outer sheath, carefully fold back the shield or sheath. Bend part of the foil again so that not the inner, but its outer part comes into contact with the plug;
  3. Remove the insulating sheath of the central wire;
  4. Put the plug on the cable and turn it clockwise until it stops;
  5. Cut off the excess strands.

Plug installation is complete.

It is also useful to watch a video on how to connect a TV plug to a coaxial cable:

Sometimes the quality of the TV signal drops unexpectedly. In such cases, it is necessary to identify the causes of signal degradation and eliminate them.

  • If the cable is damaged, first you need to find the place of the break.
    Next, divide the cable into 2 parts and carry out the same operation with each of the parts as when putting on the plug. Buy special nozzles that are worn on the cable and connect the damaged parts.
  • The cable can be extended in the same way. It is recommended that you use a cable of the same brand and model for extension.
  • The signal quality may also drop due to sharp turns television wire.
    Do not bend the cable sharply 90 degrees. Be sure to bend the cable with a certain radius.


Be sure to watch the video on how to connect a TV cable:

Connecting multiple TVs

To connect several devices to one antenna at once, splitters are used, which are otherwise called "crabs".

How to connect multiple TVs to the same antenna via a video splitter:

Crabs are recommended for use in areas with strong TV signals, i.e. close to television towers, since when a crab is connected, the signal strength decreases sharply. For example, if you connect 2 TVs to one antenna, then the signal loss will be about 30%.
The number of outputs on the crab must be strictly equal to the number of connected devices. If there is a free exit on the crab, the signal quality will still fall.

Amplifiers

Amplifiers are used to amplify the TV signal.
The device should be close to the TV or to the antenna.
Most often, amplifiers are used to compensate for signal loss due to the use of crabs.

Connecting a TV to an antenna through a video amplifier:


As you can see, choosing and installing a good television wire for an antenna requires taking into account many nuances. But it's worth it, because right choice tv cable - broadcasting will proceed without interference. We hope that this article on television cables will help you make the right choice.

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 of connecting the TV are not carried out correctly, analog channels, like digital ones, will show a poor-quality picture with a poor image and noise. This will happen because the antenna cable for the TV is losing signal somewhere or the installation was made with errors.

TV cable selection

Select quality and necessary materials to connect the TV - the most important event. Even the most advanced and contemporary source signal and properly plugged-in plugs cannot guarantee a high-quality picture if an unsuitable TV cable is used. Therefore, the question arises of how to choose the right television materials for connection.

How to choose an antenna cable for your TV?

Before you go to buy everything you need, you should understand the principle of high-frequency current in the cable. In a home power grid, current flows in the wire over 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 water is removed from the laundry under the influence of centrifugal force. For example, one can also cite one of the moments of childhood when we rode a carousel, and how this force pressed us into the back of the seats, pushing us out.

The antenna cable for the TV works in the same way, more precisely, the signal current that moves in it. The higher the frequency signal, the closer to the cable surface 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, thin layers of gold or silver are used to produce antenna cables, which prevent strong signal losses. 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 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 quality of execution. most great popularity and distribution was received by a coaxial antenna cable for a TV, which is represented by different manufacturers and brands. Such a cable has been successfully used to work with analog and digital television signals and even for high-frequency satellite dishes. The cable marking indicates 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 wave impedance of 75 ohms. All television devices are designed for such parameters.

The cable sheath diameter must not be less than 6 mm. The core and braid must be copper. Such characteristics are possessed by cables of the SAT 703B and DG 113 brands. But the RG 6U brand has a steel central core, which is galvanized with copper, aluminum foil is used for the screen, and a copper alloy is used for the braid. 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

To connect to the TV, you do not need to invite special workers. Everything can be done on your own if you follow the recommendations.

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 second 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.

Install the plug on the cable

The sold plugs can be of three types depending on the diameter of the cable. Therefore, when buying this device, you must check that it fits the antenna wire. Most experts advise purchasing an F-plug, as it is suitable for 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 separate the cable itself, wrap the screen film, you don’t have to do this, but the plug holds tighter in the first case, and wind the connector.

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

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

There is one secret that many do not know: the aluminum foil on the inside is treated with a thin layer of plastic for strength, it is impossible to strip it. If you put a nozzle on it, then the contact will be very poor. To prevent this from happening, the unfolded foil (its half) should be bent back. Thus, the conductive layer will be 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 nozzle 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 core insulation is removed, a nozzle is put on the foil or electrical tape, a part of the unnecessary core that exceeds 3 mm is bitten off with wire cutters, and that's it - the cable for connecting to the TV is ready.

Sometimes the design of the TV or its location does not allow you to connect the antenna directly. In this case, 90° bent plugs are available for sale, which will fit perfectly into any position.

Old types of nozzles

Before the advent of all-metal plugs, nozzles of a different design were used. They also did not need soldering, but they were put on 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 off and the rest of the plug was screwed on top.

If there are no nozzles at hand

In life, it often happens when you need to find something, but it is not there. 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 is 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 cases 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 the antenna cable for the TV if a break was found? After all, it is impossible to do here, 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, similar to 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 in the manner described above (as in preparing the wire for putting on the nozzle). After preparing the cable parts, they are inserted into the connector and tightened with a special nut.

If there is not enough length

In the same way, the extension of the wire occurs. Many found themselves in a situation where 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 extend the antenna cable for the TV.

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

1. When extending the cable, it is advisable to buy exactly the same brand of wire that is on this moment available. In no case do not take a cable with a smaller marking. Otherwise, the signal quality will deteriorate.

2. When building and connecting a television cable, even if everything is done carefully, the image quality may drop somewhat. No matter how well the connectors are screwed, breaking a 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 break and its subsequent connection will not affect the picture quality.

Connecting multiple TV sets

Connecting multiple TVs to a network or antenna that transmits an analog or digital signal is a simple matter. 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 referred to as a "crab" or "splitter".

This fixture has one input for the antenna and several outputs for other wires. In order for the "crab" to function properly, all 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 put on it, however, the signal quality will drop. Therefore, it is necessary to purchase a "crab" with as many outputs as required to power the devices.

Experts emphasize that when connecting a cable 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 the additional wire. There is even a table like this:

Two TVs are connected - signal loss - 30%.

If the incoming analog or digital signal is already weak, then due to the connected “crab”, the image quality will drop sharply. Thus, the more devices are connected, the worse the television picture will be. However, in cities where there are signal sources nearby, which, in addition, pass through special amplifiers, there are practically no such problems. Residents may face similar challenges countryside, 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 became worse, then you can put a special device in front of it - a television signal amplifier. Such a device is separately powered to electrical network. It should be placed as close as possible to the antenna or TV. There are models of such devices that have several outputs. They are put 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 knowing how to mount it correctly 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 the Western manner, leading 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, then the image quality will drop. It is better to avoid this, so that later you do not pull a new cable or install connectors, which can also affect the signal loss.

Where are we today without TV? In many homes, this electrical appliance has become almost a member of the family. We like to watch colorful TV shows, documentaries about nature or science, music concerts, box office films and much, much more. Naturally, we want the picture that our pet gave out to be as beautiful and of high quality as the one we saw when buying in a store.

But often the image of the house is strikingly different for the worse, and many users simply do not realize that it is enough just to make the correct connection, and the picture will come to life. The article will tell uninitiated people which TV cable is better, how to choose it correctly, and how to connect.

Of course, we half-heartedly when we said that for good picture Just choose the right cable. In fact, more important role plays the quality of the received picture - its resolution.

But, nevertheless, this does not detract from the merits of the wires, since if you install a cable that does not match it on a high-quality signal, all you will see is the maximum bandwidth of the selected option, that is, the image will become worse. We will reveal this dependence in more detail in the course of the article.

Today, there are two types of broadcast signal: analog and digital. We will not go into physics, and outline only the main difference.

Their transmission principle is similar, and some cables are capable of transmitting both signals. The main difference is that the digital signal is square and only transmits two possible values: one of them corresponds to zero, and the second one corresponds to one.

That is, all information is transmitted in the form of a binary code, as in a computer. Thanks to this, it is possible to cut off all the interference that abounds in analog signal, and transmit a picture with sound in its original quality. In addition, the analog signal transmits a lot of unnecessary information, which reduces throughput these cables.

All this, by no means, does not mean that the analog connection cannot transmit a signal with high quality. In some situations, the use of such wires is preferable to their modern competitor. Let's list all the analog cables used so far, and figure out how to connect them.

Coaxial cable

Before you is a standard television cable, which is familiar, probably, to everyone without exception.

It is made in the form of a round elastic wire, which consists of:

  • Central vein;
  • Dielectric, which acts as an internal insulator, and envelops the central core along the entire length;
  • Shielded layer - not all cables have it, as this increases the price per linear meter of the product.
  • outer conductor;
  • An insulating sheath that protects the cable from damage.

Such a cable is used not only in television equipment, but also in communications, and even for military equipment. It can transmit both types of signal and has not lost its relevance for many years in a row.

In modern television systems, in addition to connecting remote antennas, it is used: when connecting a satellite dish to the receiver; when several receivers are connected in series; in cable TV. Therefore, the quality of the picture in all these cases will depend entirely on the coaxial cable.

Which coaxial cable is worthy of the attention of the end user? To answer this question, you need to know all the basic specifications this product, and what external factors should be taken into account when choosing.

From this video you will learn how to choose the right TV cable.


Let's go over the main points:
  • Cable resistance - as we remember from the school physics course, resistance is measured in ohms. For a good home cable, this parameter should be at least 75 ohms. This value is affixed on the cable itself, and can simply indicate a specific number, or be encrypted, for example, RK - 75.75.

Advice! If you see a cable with one of the following markings - RG -6, RG -59, RG -11 - then you can safely purchase them, as they meet all the requirements for home television systems.

  • Signal attenuation indicator - any television channel broadcasts at its non-repeating frequency. Accordingly, each of them has its own level of signal attenuation - for some it is higher, for others it is the other way around. Therefore, you should purchase a cable with the lowest level of loss, which is measured in dB / 100m.
  • Next, you should consider where the TV will stand, and along what route you are going to bring the wires to it. If a significant part of the cable (does not count outside the window) passes along the street, then it is worth choosing an option that is resistant to temperature and humidity changes. In order not to be mistaken, choose thicker wires with a dense braid, a powerful core, layers of carbon and various impregnations.
  • Not every coaxial cable is suitable for transmitting a satellite signal. If your version has a central core less than 1 mm in diameter, then interference is inevitable. And all due to the fact that in addition to the signal, power for the convectors passes through it.
  • It is better if the cable cores are made of copper.
  • Choose options with a durable shell. The color doesn't matter.
  • Be sure to have a layer of foil and a dense braid.

Now for the cabling:

  • It is possible to lay a coaxial cable near power lines only if its thickness is at least 6 mm;
  • The cable must not be bent more than 90 degrees, otherwise the dielectric sheaths may be damaged;
  • The length is selected individually, depending on current needs;
  • For cable routing, use connectors and splitters. Do not make homemade connections.

These tips will help you answer the question of how to improve your cable TV signal. And now let's figure out how to mount the connector on the cable with your own hands. Here are the instructions and photos on the topic.

  • First, remove about two centimeters of the outer insulator;
  • Then cut off the braid and the inner dielectric, leaving about 5 mm at the base;
  • Take the connector - in our case, this is the option designed for the satellite receiver, which has a screw thread for connection.

  • Put the connector on the end of the cable;

  • The connector will be tight, so apply some pressure to make it fit snugly;

Well, to make the connection stronger and not scatter during operation (the receiver can be moved to another place), reinforce it with ordinary electrical tape.

Perhaps we have given too much space for this cable, but it is still the most versatile of all solutions.

Tulips are not only flowers

All the cables that we will consider below are used to connect equipment indoors. It is impossible to purchase them by molding and mount the connector yourself. And the first on our list will be, perhaps, the most popular option - the composite RCA jack cable. In Russia, it is better known as "tulip" or "bell".

The cable has three strands, each containing a standard RCA (male) plug at the end, which looks like a contact pin protruding forward, surrounded by a round metal rim. The mating connector ("mother") is located on the contact panel of the connected equipment, and has a diameter of 8 mm.

One wire is for video transmission, and the other two are for stereo.

The quality of the image that this connector is capable of transmitting is quite good - it is quite capable of coping with a 480p signal with minor quality losses. The disadvantage is that the composite mixes the signals “in a bunch” due to multiplexing technology, due to which the quality of the restored picture deteriorates compared to the original. Such signals, when mixed, create the effect of blurring shades and primary colors along the boundaries of objects - the picture is slightly blurry.