Which cable to choose for a TV in an apartment. The procedure for connecting a television cable to a plug, antenna, splitter

Which tv cable better? - this is a question asked by people who want to connect television equipment themselves.

There is a wide range of cable products on the market, but very often they are of low quality, since poor raw materials were used in production. As a result, the antenna cable does not transmit the signal well or other problems arise.

When choosing a television cable, it is important to consider not only the characteristics and type, but also what television equipment it will be used on, since satellite and terrestrial TV operate on different bands.

1. Coaxial- the most common type of television cable. Each TV is equipped with a connector for coaxial cable. But today this connecting element is considered obsolete, as more modern developments have appeared. Experts recommend using it to connect home-type antennas, as the signal will be very good.
2. Composite– used to connect video equipment to the screen ( game consoles, players). This cable is only suitable for analog signal transmission. The connection occurs in accordance with the colors of the cords and connectors of the monitor.
3. Component – ​​modern development, suitable for transmission satellite signal. The connection also occurs in accordance with the colors.
4. HDMI, DVI– intended for signal transmission high resolution, therefore, if your television equipment has an HDMI connector, then it is recommended to connect through it, since the quality of the broadcast picture will be ideal. HDMI and DVI cables are also often used in computer technologies, for connecting game consoles.

What does the cable consist of?

The design of television cables is almost identical. All have a center core, which is hidden behind the insulation. The insulating sheath is necessary to keep the center core stationary. After the insulation comes the shielding layer and braid, which provide protection against interference. Therefore, it is important that they are made from quality material.

Aluminum foil or lavsan is used to make the screen, and copper or aluminum wire is used to make the braid.

The quality indicator is the shielding coefficient:

• average 60–85 dmb;
• high 90–100 dmb;

All elements of the television cable are hidden under a PVC sheath, which serves to protect the cable from possible damage.

How to choose a cable

1. The first thing you need to pay attention to is the cable cut. If there is no foil or lavsan, this is a clear indicator that the cable is of low quality. If there is foil in the cord, but it peels off, then this also indicates that the product is of low quality.
2. The cable must be made with the highest quality insulation, so if it is poor, then precipitation (rain, snow) will get under it, as a result of which this will lead to the destruction of the connecting element.
3. You need to give preference to popular manufacturers that have proven themselves well. Good brands are considered: Commscope, Cavel, Belden .
4. The diameter of the cord must be at least 7 mm.
5. Flexibility – good cable should be flexible, this will simplify its installation and also help avoid kinks.

Popular options

The television cable is produced under different brands, below are the most common options:

RG-6U

At RG-6U good characteristic And affordable price. The central core is made of copper. This cable is considered a good alternative to outdated RK cables. Suitable for connecting analog, digital, satellite television equipment.

The service life of the RG-6U is 8 years, but when used outdoors, it often fails earlier. The advantage of this cable is that it can be freely purchased at any specialized store. Cost from 10 rubles per meter.

High-quality product, excellent signal transmission, suitable for satellite television. It withstands operation well in outdoor conditions, as the cord is resistant to changes in weather and temperature.

The central core is copper, the wire is equipped with double shielding. Service life: 15 years. Price: from 30 rubles.

RG 59U

Another popular connecting element, it provides transmission of high-frequency signals over quite long distances. Just like SAT 703, it has double shielding and an internal conductor made of copper-plated steel. Thanks to this equipment, it is very durable, but at the same time it has good flexibility, which is important when laying.

Service life: 10 years. Approximate cost: 25 rubles.

Cable DG 113

This option is more expensive than previous wires. The characteristic presented by the manufacturer is almost identical to the sat 703 wire, but there is one significant difference - DG 113 has a higher shielding coefficient, it starts from 90 dmb. Thanks to this, the signal quality is ideal, without interruptions or interference.

Service life: 10 years. Price: from 70 rubles.

1. In apartments, it is best to use cords for digital television; they transmit more waves on any range than regular ones.
2. In areas with unfavorable weather conditions, it is recommended to use specially impregnated cable.
3. When laying, you need to make as few connections and solders as possible, since for this reason the signal transmission deteriorates. It is best to lay a solid wire.
4. Do not use homemade splitters; it is better to buy branded ones. Also, splitters and amplifiers must be installed in accessible places, this is necessary for ease of maintenance and repair.
5. During installation, you must adhere to the manufacturer's instructions about the permitted bending radii of the wire, as well as the optimal distance for fastenings.
6. Do not run coaxial cord near electrical wires as this may cause interference.

The above recommendations will help in choosing a high-quality coaxial wire that will provide excellent connection television equipment, without interference or damage. Read also,.

Even in the age of digital technology and the total penetration of the Internet into all spheres of life, many apartments receive a television signal via cable. An incorrect attitude towards its installation can have a very negative impact on the quality of the received signal, even if you choose the most modern and expensive material. In this article we will tell you how to connect a television cable in different ways, we will give recommendations to beginners.

Features of cable routing

The television cable “comes” into the apartment from the floor panel and is routed through the television receivers available in the house. To correctly install a TV cable throughout your apartment, you should follow some recommendations.

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

To avoid signal interference, it is recommended to place the cable away from the electrical wiring. Telephone wire or Internet cable do not interfere with the normal passage of the TV signal, and therefore the general installation of these communications in one cable channel is allowed. If it is impossible to avoid placing an electrical cable together with a television cable, then you should purchase a TV cable with a core diameter of over 1 mm with a double protective screen.

Throughout the apartment, the cable should be pulled in one piece, avoiding any connections or twists that affect the quality of the picture. Crossing cables 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 routing across rooms to ensure shielding and high quality contacts is carried out using factory-made splitters. Self-made devices are unlikely to provide acceptable signal quality. You should also avoid connecting a television cable with sharp bends or in a coil - the quality of the picture on the screen may suffer greatly from this.

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

How to choose the right cable

Even the most modern television receiver and cable plugs are unable to produce an acceptable image if the cable is of insufficient quality. High-frequency TV signal currents flow somewhat 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 cables used in the military or space industry, in order to avoid a critical reduction in the quality of the television signal, they are treated with a silver or gold compound.

Selecting a cable to connect

When selecting material, you must adhere to the following recommendations:

• all markings 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 or less than 6 mm;
• The main core and shielding braid must be made of copper.

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

Marking of television cables

Let's look at the marking using the example of the Chinese RG 6U television cable, the most common in our country.

How to connect a cable to a plug

You can connect the plug to the cable on our own, especially since the TV signal voltage is too low to cause any harm to health. Even an unplugged cable can be cut without fear of electric shock. A short-circuit between the braid and the main conductor also does not cause any harm. For different sizes Cables come in a variety of plugs, so when choosing a cable, you need to pay attention to its diameter. The most commonly used are F-plugs.

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

• with braid bend;
• without inversion.

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 to length without damaging the screen. Once the cut is complete, the insulation is folded back and removed.

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

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

Aluminum foil for strengthening purposes inside often covered with polyethylene. It is unlikely that it will be possible to clean the film without damaging the foil, so to improve the contact of the screw-on plug with the foil, the bent part of it 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 a manner familiar to many, similar to removing insulation from electrical wires, without damaging the core itself. Then the plug is screwed onto the foil, and the excess main core is bitten off with wire cutters or cut off with a knife, leaving a length of approximately 3 mm on the outside.

Connecting the cable to the antenna

Connecting the TV cable to the antenna must be carried out in compliance with 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;
• sharpened knife or scalpel;
• soldering iron

An antenna amplifier is used when the signal is not strong enough or too weak. The 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 terminals

The cable, splitter and amplifier must be installed next to the separated cable. In an individual home, the best place to place all appliances is the attic. The end of the cable coming from the antenna is connected to the amplifier through a special terminal. From the amplifier the signal goes to a 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. Preparing the cable is similar to cutting it before connecting it to the plug.

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

Connecting to a splitter

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

The connection diagram can be presented step by step as follows:

• choosing a location for the splitter and securing it there;
• removing plugs from used connectors;
• cutting and connecting TV cable.

Connecting the cable in the panel

When laying or connecting the cable, it is not allowed to twist it into knots and coils, bends or sharp bends, which sharply worsen the quality of the received television signal.

Tip No. 2: The section of cable that goes first from the panel to the apartment should be placed in a wide cable channel.

In the case when the cable connection in a staircase box must be performed by soldering, the length of unshielded sections should be minimized, since their presence and length directly affects the quality of the signal and image. After soldering is completed, it is recommended to cover each contact under a layer of varnish - it can prevent the occurrence of pockets of corrosion damage and the ingress of dust particles between the contacts. Dust sticking between the contacts causes the signal to deteriorate when air humidity increases: the image reproduced by an analog TV will become very snowy, and when transmitting a digital signal, the image will simply disintegrate into pixels with an unpleasant squeaking sound.

Frequently Asked Questions

Question No. 1. Is the F-plug for digital suitable for transmitting digital TV signal, or only for analog?

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

Question No. 2. What to do and what to do if the diameter of the cable is slightly smaller than the diameter of the internal thread of the plug? After all, in this case, reliable compression will not work.

Question No. 3. When installing the plug into the corresponding 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 purchased at almost any store that sells electrical household appliances.

Question No. 4. In old Soviet-made TVs, 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 No. 5. How can I connect to an antenna or network? cable television several TVs at once?

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

Typical connection errors

• Not everyone knows that some manufacturers coat the inside of the cable with polyethylene, which cannot be cleaned even with a scalpel. Plastic, even with the best 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 turned-off foil in reverse side so that the conductive side is on the outside.
• A typical mistake is getting the thinnest braided wires onto the main core of the cable when crimping it. This may result in poor quality or intermittent signal dropouts. A common mistake when installing and laying cables is placing them in the same baseboard as the electrical wiring. This cannot be done, otherwise the interference created can significantly spoil the mood when watching TV shows.

Often, manufacturers of television systems complete the equipment with low-quality cable products (to reduce the cost of finished products). Consumers often complain about weak signal and interruptions in work in bad weather conditions. You need to figure out which one is best for satellite television before purchasing.

General view of coaxial cable

For a standard antenna with a frequency of up to 2.1 GHz, models with a resistance of 75 Ohms are suitable (all TVs, amplifiers and splitters operate on this parameter) such as RG 6U, SAT 50, SAT 703B and DG 113. Each has similar basic characteristics, but at the same time the cost they are very different. The higher the cost of the product, the less signal loss. The next difference is the scope. For the right choice product, it is necessary to understand what characteristics the cable network should have.

Species

Coaxial cable is the most common type for construction television networks. Each TV device is equipped with a corresponding connector. Doesn't have the most best characteristics. Great for connecting home TV antennas to TVs.

The design of coaxial wires is such that the elements of the electromagnetic field are always located between the conductors, and are completely isolated from each other. This guarantees absolute protection from the influence of external electromagnetic waves and eliminates losses of the electromagnetic field due to radiation. The signal is transmitted through the internal conductor.

It consists of three wires: one transmits video signals, the second right and third left - stereo signals. Designed for connecting video equipment (cassette recorders, players), game consoles of the first generations to TV monitors and televisions. This type cable can transmit exclusively analog signals. Connection to devices occurs in accordance with the color of the cords and connectors on the TV.

Composite cable for connecting video equipment

Component cable

New generation product. This species is capable of transmitting digital signal satellite TV. All three conductors can transmit images. The kit always includes a set for connecting audio tracks. Connections to TV devices must be made by color.

HDMI, DVI cables

Designed for transmitting high-resolution video signals. If your TV device is equipped with special HDMI connectors, then it is advisable to connect antennas to them, because The image quality here will be the best. HDMI literally translates to multimedia interface high definition. DVI – digital video (the conductor does not transmit sound). For audio tracks HDMI connector is used. The products are widely used in computer technology, for connecting modern video consoles and other gaming equipment.

Design

All television conductors have a similar design.

The cable consists of several elements:

• an inner conductor of single core, stranded wire, copper tube or coiled copper wire;
• insulation made of polyethylene, foamed polyvinyl chloride, fluoroplastic or an air gap, which can ensure the immobility of the internal and external conductor;
• external conductor - foil, metal braid, covered with a layer of aluminum film, corrugated tube and turns of metal wire (aluminum or copper alloy, copper);
• outer shell made of light-stabilized polyethylene (resistant to ultraviolet radiation), fluoroplastic tape and polyvinyl chloride.

Coaxial and other TV wires are round. Standard range diameters range from 4 to 8 mm. Models with larger or smaller diameters are less popular.

Packaging of cable products

The presence of foil indicates the high quality of the product. The braid is a mesh of metal wire woven crosswise.

Choice

Before you start choosing cable products and fittings, you need to decide what kind of TV system you will have at home: digital television or ethereal. They operate in different frequency ranges. If you install the system for terrestrial television, then satellite will not work at such frequencies or will work, but with great interference. What you should pay attention to:

• The characteristic impedance of the structure must be at least 75 Ohms. This is the minimum value at which a signal is received without interference.
• The cut should clearly show the central and outer core, two screens (aluminum foil and metal braid). The foil layer should be dense, overlapped; if the edges lag behind the shell, this indicates that the product is of poor quality.
• In the design, the insulation must be as dense as possible and have a large diameter so that rainwater and snow cannot get inside. Otherwise, the TV network will need to be replaced within a few months.
• The braid must be made with high quality. Otherwise, there will be interference when watching channels in bad weather.
• The optimal diameter is 6-7 mm. It is quite enough for a standard set of programs.
• The central core can be made of copper or a metal alloy. There is no fundamental difference in this parameter. Only personal preferences of each master and cost. Alloy cores are cheaper, but at the same time they are practically not inferior in signal quality to those made of copper.
• It is recommended to lay wires for digital TV in a house (apartment), because... he misses more waves on all frequency ranges than others.
• The minimum permissible wire diameter is 3.5 mm. The larger the diameter value, the larger the reception range. If you already have a small-diameter conductor, then it is advisable to purchase a head station and an amplifier in order to reduce losses and increase the efficiency of the installation.
• You should not purchase products with one shielding layer. Such models do not comply with signal transmission standards. The picture quality will be very low.
• A high-quality television wire should have 2 shielding layers - foil and copper braid.
• If coaxial or other wires will be used in a region with difficult weather conditions, then an excellent option would be a model with impregnation that protects the internal layers from temperature changes, frequent snow and rain.
• You should choose products from well-known brands that have positively proven themselves in the television network market: Belden, Mediaflex, Commscope.
• If the installation involves laying two cables in parallel, then models with a diameter of at least 10 mm and with special protection against radio interference are required.

Popular models

RG-6U

RG-6U is the most popular due to its acceptable characteristics and low cost. Excellent for replacing old RK cable networks. The only drawback is that it quickly breaks down when working outdoors.

Pay attention! For indoor installation, models with white insulation are needed; for external networks, they are suitable with black insulation, with higher technical characteristics.

Specifications:

• RG-6U is manufactured with a copper inner conductor, double shielded.
• The insulation consists of film-porous polyethylene.
• The external conductor element is an aluminum tape in a tinned copper braid.
• Shell – white or black polyethylene, 0.95 mm thick.

General view of the RG-6U cable

SAT 50

SAT 50 is a higher quality type of satellite cable. Counts complete analogue SAT 703 cable system, but less expensive.

Brief characteristics of SAT 50:

• purpose – antenna cable;
• internal conductor element – ​​copper, 1 mm in diameter;
• shielding – double (aluminum/polyester) in copper braid;
• outer shell – polyvinyl chloride improved quality(light stabilized);
• wave resistance – 75 mm;
• service life – 15 years (subject to use at home).

General view of the SAT 50 cable

RG-6U differs from SAT 50 in braiding, internal core thickness and cost. On average, in stores the price for SAT 50 is 20% more than for RG-6U.

For the construction of a small television home network, as a rule, choose the less expensive option. If the housing is located in a region with severe climatic conditions, then it is better to buy more expensive model, which has higher characteristics.

• The contours of coaxial wires are located away from electrical appliances - washing machines, refrigerators, microwave ovens and irons.
• Joint installation with low-current circuits (Internet, alarm, telephony) is allowed.
• During installation, it is necessary to strive to reduce connections and solders of cable products. The best option is the laying of integral parts of the cable. Additional connections reduce signal quality.
• For branching, it is necessary to use factory-made splitters.
• Intersections and bends of conductors must be performed strictly at right angles.
• The sections from the main panel to the branching devices are carried out in wide channels (to make it possible to increase the load on the apartment or house in the future).
• When purchasing, you should take into account the additional cost of satellite wiring for descents, ascents and bends.
• In the switchboard, coaxial television cables are connected exclusively by soldering. Conductor exposure should always be reduced.
• Amplifiers and splitters are installed in easily accessible but protected places for ease of maintenance. The elements are placed in special boxes made of self-extinguishing plastic.

Additional devices

An additional device for constructing systems is a splitter, which is needed to supply a signal to the apartment. Installing several splitters makes it possible to distribute the wire to all rooms. Amplifiers are installed before the splitters. They are designed, as the name suggests, to amplify the input and transmitting signals.

We connect, change, install, repair antenna cable for TV.
The antenna cable laid around the apartment is checked for weakening of the television signal and shielding of radio-electronic interference.

The "Parameters and Specifications" section provides the necessary information for the correct selection and purchase.

We provide service to all areas of Moscow and the surrounding Moscow region. on the use of cables and connectors to obtain high-quality television images.

Depending on the place where it is laid antenna cable for tv(small apartment or large country house), as well as from the source of the antenna signal (panel on the staircase, external terrestrial passive or active television antenna, or satellite dish), as well as the number of connected TVs, make different demands on the “stream” through which our favorite TV shows will flow into our home. The quality of the transmitted antenna signal is significantly influenced by several basic characteristics of the antenna television cable.

Which TV antenna cable is better?

The table below shows the characteristics and comparative parameters - antenna cable for tv:
Sat 703. TV cable manufacturer Cavel, diameter 6 mm, copper central core, double shield with copper braid.
Sat 50. Manufacturer Cavel, cable diameter 6 mm, copper central core, double shield with copper braid.
RG-6. Manufacturer Rexant, diameter 6 mm, copper-plated steel central core of the cable, double screen.
RG-59+CU. Manufacturer Rexant, diameter 5 mm, copper central core, cable with double shield and copper stranded braid.

As can be seen from the table: antenna cable for a TV - characteristics and parameters, the main difference appears at high frequencies in the UHF range of television channels. It is better to use a Cavel cable for a TV antenna for satellite television signals with a frequency of 1750 MHz.

Answer questions which tv cable is better And how to choose an antenna cable for a TV Labeling it helps. You should find out the specific operating conditions and the devices connected to it. It is also important to know the source of the television signal - terrestrial or satellite antenna, the climatic conditions of the cable, the total length of the installation, the number of connected TVs, the presence of powerful sources of electrical interference, the diameter of the outer insulating layer and even the color of the television cable should be taken into account when ordering.

1. Diameter - a television antenna cable with a smaller diameter is easier to lay around the apartment, mask, and has a smaller bending radius. But in all other characteristics it loses, and most importantly, not only is it smaller in overall size, but also in the diameter of the central core: 0.5 mm. Therefore, the connection and connection of such a cable will not be good in standard connectors and splitters designed for a center conductor diameter of 1 mm.
2. Shielding - A modern television cable has a main metal foil shield and an additional metal braided shield, which reduce the level of interference from sources such as electric motors and transformers household appliances, radiotelephones. Replacing an old single-screen cable with a dual-screen cable often improves picture quality: ripples from interference on the TV screen disappear.
3. Protective carbon layer- the presence of a protective carbon layer in the television cable implies its connection outdoors. Operating conditions, whether the product will experience temperature changes from + 40 in the summer to - 30 in the winter, determine the service life.
4. Composition of the central core and braid- it is believed that television wire with a copper central core is better. This opinion is not always true. A cable with a copper core is used in the installation of satellite systems, where direct current flows through the central core, together with the high-frequency television signal, to power the converter. In the case of cable and terrestrial television, the radio frequency signal - that is, essentially high-frequency currents - flows exclusively along the surface of the conductor. Thus, when transmitting antenna signals, a cable with a copper-plated steel core will not lose in attenuation characteristics.
5. TV cable length- the overall attenuation of the signal, that is, a decrease in the level of the television signal, is a multiple of its total length, and when installed inside an apartment, when about 30 meters are spent through a splitter, it has no practical significance.
6. TV cable color coding- there is an opinion that by the color of the external insulation, or the stripes applied to it, we can talk about its quality. It is believed that black cable is intended for outdoor use, and white- for indoor installation, longitudinal color stripes indicate its quality, and green is the best. However, properties can only be judged by technical specifications, in which there is no color marking. The choice of color depends on the preferences of the buyer, and the presence of stripes on the cables different colors simplifies installation cable systems with lots of wires.

REXANT TV cable marking

Products trademark REXANT appeared on the Russian market not so long ago. The company's production facilities are located in China. TV cables, as well as F-connectors, plugs, lugs, adapters produced by REXANT are in mass demand thanks to good ratio prices and quality.

RG is produced by REXANT. The most widespread types of television are: coaxial cables: RG-6U+CU; RG-6U; RG-59; RG-59+CU; 3C-2V and RG-58A/L.

REXANT RG-6U+CU characteristic impedance 75 Ohm, consists of a coaxially placed central single-core copper conductor with a diameter of 1 mm; screen consisting of aluminum foil and 48 copper threads. The internal solid conductor is made of copper, ensuring simultaneous signal transmission high frequency And DC With minimal losses, and is enclosed in a polyethylene dielectric, which maintains the coaxial location of the conductor and the screen. The outer sheath of the cable is made of PVC and has a diameter of 6.8 mm, which ensures reliable fastening of the F-connector to it. The REXANT RG-6U+CU antenna cable is suitable for transmitting signals from satellite and terrestrial antennas, as well as cable television signals.

REXANT RG-6U wave impedance 75 Ohm, consists of a coaxially placed central single-core copper-plated steel conductor with a diameter of 1 mm; screen consisting of aluminum foil and 48 steel threads. The internal solid conductor is made of copper-plated steel, which provides high-frequency signal transmission with minimal loss, but is not intended for direct current transmission, and is enclosed in a polyethylene dielectric that maintains the coaxial location of the conductor and shield. The outer shell of the television cable is made of PVC and has a diameter of 6.8 mm, which ensures reliable fastening of the F-connector to it. The REXANT RG-6U antenna cable is suitable for transmitting signals from over-the-air antennas, as well as cable television signals.

REXANT RG-59+CU characteristic impedance 75 Ohm, consists of a coaxially placed central single-core copper conductor with a diameter of 0.58 mm; screen consisting of aluminum foil and 48 copper threads. The internal solid conductor is made of copper, allowing simultaneous transmission of high frequency and direct current signals with minimal loss, and is enclosed in a polyethylene dielectric that maintains the coaxial location of the conductor and shield. The outer sheath of the cable is made of PVC and has a diameter of 5.4 mm, which ensures reliable fastening of the RG-59 F-connector for 5 mm cable. The REXANT RG-59+CU antenna cable is suitable for transmitting signals from satellite and terrestrial antennas, as well as cable television signals over short distances.

REXANT RG-59 characteristic impedance 75 Ohm, consists of a coaxially placed central single-core copper-plated steel conductor with a diameter of 0.5 mm; screen consisting of aluminum foil and 32 steel threads. The internal single-core conductor is enclosed in a polyethylene dielectric, which maintains the coaxial location of the conductor and the screen. The outer shell of the television cable is made of PVC and has a diameter of 6 mm, which ensures reliable fastening of the RG-59 F-connector for a 5 mm cable. The REXANT RG-59 antenna cable is suitable for transmitting signals from terrestrial television antennas, as well as cable television signals over short distances.

REXANT 3C-2V characteristic impedance 75 Ohm, consists of a coaxially placed central single-core copper-plated steel conductor with a diameter of 0.5 mm; screen consisting of aluminum foil and 32 steel threads. The internal solid conductor is made of copper-plated steel, providing high-frequency signal transmission, and is enclosed in a 3 mm diameter FPE polyethylene dielectric, which maintains the coaxial location of the conductor and shield. The outer shell is made of PVC and has a diameter of 5 mm, which ensures reliable fastening of the RG-58 F-connector on it. The REXANT 3C2V antenna cable is suitable for transmitting signals from over-the-air antennas, as well as cable television signals over short distances.

Options TV cable.

Total length from the signal source to the TV.
With a total cable length of less than 20 m, the practical impact is not noticeable. (Defining parameter: attenuation per meter of length)

Frequency range television signal carrier. The table of terrestrial analogue and digital channels, as well as the frequencies of cable television channels are in the same range, and the carrier frequency of the television signal is from satellite dish significantly higher (determining parameter: frequency dependence of attenuation).

Presence of electronic interference.
Modern tv cable protected by two shielding layers: foil and braid, the density of which significantly affects the effectiveness of the shielding factor. (parameter: shield efficiency)

Installation location- an antenna television cable laid outdoors is exposed to ultraviolet radiation, significant changes in temperature and humidity. (Determining parameter: aging coefficient. The presence of an external protective carbon layer significantly reduces the impact of the environment)

TV cable thickness, which is measured by external insulation (defining parameter: diameter). The ease of laying and masking depends on the diameter. Most often, a wire with a diameter of the outer insulating layer of 6 mm is used. Sometimes a thinner one with a diameter of 5 mm is used.

Customers often complain about a weak TV signal in bad weather conditions. This may be due to poor quality TV cable. Vendors often assemble equipment from products that are no different high quality. This reduces the cost of equipment, and sellers can make a larger markup.

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

Types of cables

There are four types:

TV cable, which is better?

We'll sort it out the most common option TV wire– coaxial. It is produced under different brands. But, they all have a wave impedance of 75 Ohms. Using such a television cable, you can connect several televisions. So, what brands are there:

• RG-6 cable. Produced under the Russian brand. Made in China. It has a copper or steel central core, the thickness of which is 1 mm. The central vein is in a shell made of polyethylene foam. The device itself consists of a screen made of foil, copper or aluminum braiding and a protective shell made of PVC. The thickness of the entire wire is 6–6.8 mm. This brand is used to connect digital, cable or regular television. The price for such a cable is low, only 10 rubles per meter. You can buy it in the online store.
• Cable PK-75. This brand is similar to the previous one. Produced in our country. Copper central core, the thickness of which is 1 mm. Screen made of copper or double aluminum lavsan and tinned copper. The cable has a single shield. Most often used for cable television. If you have a dual screen, you can connect satellite television inside the building.
• RG-5 cable. This brand of cable is distinguished by its thickness, which is 0.58 mm. Outer diameter – 6 mm. The cable is designed to transmit any type of signal. Satellite television also transmits. 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 options are used for the same device. Because of my fine structure it breaks often. It is the most difficult to attach to sockets and connectors.

Foreign television wires

Let us 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 your TV, you need to decide what 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 will not work at all. In this case need to pay attention for the following features:

So, we looked at which TV cable to choose. In order for the cable to work well, it is necessary to choose it correctly. You can select a cable for cable television according to the following criteria: 6.5 mm cross-section, with two screens and a well-known brand. You can buy the device in the online store.