Connect the television cable twist. Coaxial television cable: how to connect. Cable tv lengthening using F connectors

By itself, the TV cannot receive signals. For this, in front of it, which is connected through the cable. The term of its service under normal operating conditions is about 10 years. When it is on the street and is subject to atmospheric influences, the replacement will be required significantly earlier. Especially fast cable fails in a limp.

The photo below shows modern.

Device of a modern television cable

A suspended cable without reference cable is prohibited.

For complex climatic conditions, a special cable is used, which should be indicated in the characteristics.

Cable device

In the center of the vein there is a central copper conductor with a diameter of 0.3 to 1.1 mm (signal wire). The smaller size is not recommended, since it is designed to be a meter frequency. Through the thin cable, the TV will show only the main channels. For a user, it is better to choose a cable greater thickness that has less signal loss.

From above is the shielding layer of aluminum foil and thin copper wire braids, protecting against external interference in the form of electromagnetic waves. Between the central wire and the screen is a layer of insulation from polyurethane. Outside there is another insulation of polyvinyl chloride or polyethylene to protect the cable from mechanical effects and ultraviolet radiation.

On the cable, the foil should be on the screen with the braid. The old sample products with one braid are not suitable for the modern video signaling standard.

Wire centers and screen coincide in the radial direction. Due to this, the loss of the passing signal is reduced.

differ in the following parameters:

• outer diameter (best dimensions - 6-8 mm);
• wave resistance;
• degree of shielding;
• flexibility.

Marking of common television cables Next:

• imported - RG-6, RG-59;
• domestic - RK-75 (75 ohms - the magnitude of the wave resistance).

The RK-75 cable is not recommended to purchase, so it has a high signal attenuation indicator. In the conditions of the city, it is possible to not be noticed because of the close location of the transmitting stations, and in the countryside, the signal loss becomes tangible.

When laying a television cable next to the wiring, the diameter should be at least 10 mm and have increased protection against interference.

When choosing a cable, you should pay attention to it not too flexible. The braid should be chosen more dense. Too rare - easily misses interference. Foil should not be very thin.

The insulation of the central core must be tough, not mild, like foam rubber.

Studying passport details, attention should be paid to the frequency and damage television signal At a certain length. What they are lower, the higher the quality of the cable.

When elongating the cable, you need to remember that this leads to a decrease in the quality of the transmitted signal. It is recommended to create no more than 1-2 compounds. In the photo are depicted different types Connection devices and branching cables.

Connectors and splitters of television cables

1. The insulation layer is removed from both ends and the copper braid and aluminum foil screen turns into reverse side. The inner side of the foil is covered with a thin layer of polyethylene or lavsana. To ensure reliable electrical contact, half the foil should be wrapped back so that the conductive side is outside for better contact.
2. It is believed to the inner insulation before the signal wire on the section of 1 cm long. It is necessary to eliminate the formation of a copper conductor cutting, which reduces its strength.
3. After preparing the ends on the cable through the foil, F-plugs are screwed (Fig. A). The central live should perform from the plug by 5 mm. If it is longer, it should be trimmed.
4. Screening ends with F-plugs on the adapter F-socket (Fig. B).

Splicing of a television cable: a - f-plug; b - adapter F-nest; B - detachable connection

Socket plug connection

At the ends of the cables, the same nuts are screwed as in previous MethodBut one of them screws a TV plug, and another is a TV nest. Then the connection is made. So that it is reliable, it should be coated with a tape. The photo shows compounds, closed with a tape. They have a not very attractive appearance, but are reliable. Usually they are hiding in cable channels.

Winding Cable Connections Tolerent

Plugs are straight and corner. They are mounted on the cable equally. Corner - Applied to the convenience of the connection, where the direct plug is not always convenient to use, as well as when creating complex turns.

The angular plug is used where the use of direct is difficult

Twist

The method is the worst, since the connection is not protected from electrical interference. It is better to suck with tin and position on the removal from the wiring. If there is a layout in several TVs, the connections are performed in the junction box. In this case, the screen and central wires are carefully isolated from each other.

Wiring through splitter

The splitter is a metallic box with one input "IN" and two or more "OUT" outputs.

The entrance is suitable for an external cable that should not have any splices. The splitter is attached to the wall or floor so that there is no danger of pulling the cable wiring. Included with the connector go butt nuts. They should be turned on the previously prepared ends of the cables, and then combine with plugs. Next is the final connection to the external cable, and the outputs are to television receivers.

Splitter (splitter) for television cable

If the number of TVs in the house exceeds two, an active splitter containing a video signal amplifier is installed instead of the usual. It is placed as close to the receiver. Such a splitter is connected to the network power supply.

With any method of connecting cables, easy access to the case of repair must be provided.

Rules of cable laying

1. On the removal from electrical wiring and powerful electrical appliances.
2. Minimum number of connections.
3. The use of only factory splitters and connectors.
4. It is allowed in the intersection with power circuits only at right angles.
5. It is not allowed to fold the cable into the coil and the bend under an acute angle.
6. In the panel box, the connection is created only by soldering and with minimal cable latter.

Cable preparation. Video

How to prepare an antenna TV or satellite cable for use will tell the video below.

You can increase and make the branching of the television cable with your own hands, if you follow the rules described in the article.

Nowadays, few people can present their lives of cable television. Everyone can find a channel for interests that will allow spending free time with benefit for yourself. Connecting the TV to the antenna allows the TV to receive a digital signal that significantly improves the quality of the translated image. An illiterate connection can make a signal unstable. On how to connect an antenna to TV can be read in this article.

Before connecting the antenna connection, you need to take care of buying a high-quality television cable, at the ends of which the F-plugs should be consolidated. If the connection of the antenna and the television cable will be incorrect, the television signal will be lost, which will lead to a deterioration in image quality. The most important point when connecting antenna is right choice cable.

If a television cable is used to connect low qualityEven the most modern TV and correctly attached plugs at the ends of the cable, the position will not save.

To know which cable is to choose, you need to first examine the question of the movement of high-frequency current over the antenna cable. IN electrical network The current flows throughout the perimeter of the secting of the conductors. But the movement of the high-frequency current of the television signal occurs differently.

Installations of an antenna plug on the cable:

• You can independently connect independently, since the voltage of the television signal does not represent hazards for human health.
• When buying a plug for an antenna cable, you should pay attention to the fact that the plug size is suitable for a specific television cable.
• To perform the rotation of the plug, the cable can be divided using two methods: the shielding braid can be wrapped, and you can not wrap. The first method is considered more reliable.
• To divide the television cable, it is necessary to cut through the outer shell of the cable depth. Pressing the knife should not be too strong, otherwise you can damage the braid.
• The outcrop the shell is rejected and cut off where the cut begins.
• Aluminum foil and copper braid turn away. To make foil strength, it is necessary to cover it with polyethylene from the inside.
• Half a twisted foil bend back to not worsen the quality of the contacts.
• The central core is exempt from isolation, and the plug is screwed onto the foil.
• The central core "bite off" so to leave from 2 to 3 mm.

The second half of the plug should be turned up to the stop, then both plug will be ready to work. It happens that after the plug inserted, the television cable interferes with putting a TV close to the wall. To avoid this, you need to install a plug with an angular design.

Connecting satellite antenna to TV without receiver

Connection home television Satellite television is associated with the receiver. It was so before you could view the television channels. Today, the connection can be made independently without using the receiver.

Many modern models are equipped with a built-in digital tuner and a special slot in which the access module is installed.

If a satellite antenna Connect and configure correctly, the TV will receive a satellite operator signal, which will allow you to use satellite television without connecting the receiver. For proper connection, the satellite dish antenna cable must be connected to the connector that is equipped with a special entrance. It is usually located next to the essential antenna entrance.

Advantages of connecting without receiver:

• No need to buy additional devices;
• The interior is not disturbed, so the receiver does not take place.
• To view the channel, you can use only one remote.
• The number of wires is significantly reduced.

To decode channels, you will need to install the module itself and access card. Without module, television channels will be extremely limited. When the module is installed, the cable from the satellite antenna should be connected to a special jack using F-connectors.

Instruction: How to connect antenna to TV

To connect an antenna cable and power supply, you must attach the cable to the plug in the power supply, where the antenna is active. First of all, you need to correctly separate the cable. To do this, you need to move away from the end of the cable by one and a half centimeters, and then carefully cut off isolation. You need to do it in a circle.

Performing cuts, it is important to ensure that you do not damage the braid, as well as the cable screen, which is insulated.

After that, you need to push the screen hairs and foil back. It is necessary to retreat from the braid edge by 5 mm to make a cut of the inner insulator and remove it. Then the cable is neatly hardened under the plug so that the braid and the screen with the bottom lined platform occurred.

How to prepare antenna cable:

• Find the end of the cable.
• Remove isolation.
• Shift the screen.
• Cut the inner layer before the appearance of inner veins.
• Connect the cable.

In order for the voltage to come from an antenna cable about the TV cable, it is necessary that the lower lifted plug site must necessarily cause. It is impossible to allow the closure of the central core brackets. If a closure occurs, the power supply indicator swells or burns dim.

How to connect tv antenna easily and just

The home television antenna is best organized with a splitter. Splitter is a metal box into which one input F-connector includes, and several connectors leave. Outputs may be somewhat or a lot: from 1 to 6. Depending on this, you can connect the antenna immediately to several TVs.

To connect home antenna Correctly and efficiently, it is necessary to use a modern antenna cable having double shielding.

Double shielding eliminates the set of electromagnetic interference. The central cable veins can be completely copper, and may be copied. When choosing a cable, it is important to pay attention to the model of a particular TV.

How to connect an individual antenna:

• Insert cable into a television socket.
• You can use splitter to connect multiple TV.

To optimally connect multiple instruments, you need to use splitter. It will uniformly distribute the signal. Such connection is convenient if you need to repair. If the TVs begin to show badly, it is necessary to verify the operation of the signal network.

Instruction: How to connect antenna to tv (video)

Street or room antenna You can attach to the TV on your own. The voltage is safe for human life, so the installation can even perform a beginner. From proper connection The quality of the signal will depend on, and, consequently, convenience when watching TV. The antenna is connected to the use of a television cable. Its choice will depend on the model of the TV. Cable must be high QualityOtherwise, the signal will not reach the TV, which will lead to frequent interference.

We clean the television cable, without having a subwoofer using a stationery knife. To cut through the protective shell blade should be sharp.

• We retreat from the edge of the wire of about 1.5 cm and smooth circular motion, slightly pressed, make an incision of external insulation. Making an incision, the main thing is not to overdo it and do not cut down a thin aluminum braid with vile, which is insulated. We are tightened by cutting shell.
• We refuse and reject the screen to the side opposite from the edge of the cable TV.

• We take into the hands of the knife and again receding 1.5 cm from the edge with circular motions cut off the inner isolation. It is usually solid white polyethylene. Its thickness will be slightly thicker than external insulation. For ease of removal, you can still make several slots along the entire length (1.5 cm). After removing the inner insulation, the central conductor will seem. It is on it that will be transmitted a television video signal.

We did everything right, and our antenna cable is cleaned of isolation!

That's not all! After stripping a television cable, it is necessary to clip it with the F connector.

How to crimp an antenna (television) cable using F connector (connector).

After stripping, we immediately go to it. Crimping is called the winding of the connector and its fixation.

F Connectors can be slightly different: there are disposable F connectors for crimping, which are not subject to removal after the attachment. There are those that boil immediately over the protective shell.

You screw down the connector in such a way that the central conductor lives can be 2 mm from the edge of the connector, while the central conductor must be strictly in the center and not touch the nut.

Switching socket F per plug TV - To connect the television antenna, satellite or cable television.
Connector BNC plug on F (socket) - To connect AHD / TVI / analog video surveillance.
F connector should be chosen from type coaxial cable. The most common distribution was the connectors of popular types of television cables: connector f on Rg 59, F on RG 59 Micro, F to RG 6, F on RG 58.

As can be seen, there is nothing complicated in sweeping and burning. If it did not work out the first time - try to make an indent of the antenna cable again.

With proper cleaning and burning wire, we will receive a high-quality connection of the connectors and can enjoy the quality of the pictures from the TV, satellite TV or video surveillance camera.

How to combine the antenna cable.

It happens that when laying you lacked a little length or simply requires it to lengthen it.

because of constructive features An antenna cable to make it very difficult to do. The central lived rigid and easily breaks, and the screen is multi-way, which is also uncomfortable when connected.

The problem of scrubs is that such a connection is unreliable. It is worth moving the wire, and the image will be rich. On a television cable, a high-frequency signal is transmitted, which is not enough electrical contact between two pieces.

To connect the television cable, you will need a connecting adapter: F (socket) - F (socket). Adapter is called barrel.

In the barrel, after following the crimping, you connect two antenna cables that you want to combat.

Despite the fact that today the Internet is available in almost every home, in many apartments the television signal, as before, is carried out by cable. Therefore, the question of how to connect an antenna cable to the plug, quite relevant. Incorrect installation will adversely affect the quality of the resulting signal, even if you use the most modern and expensive material. How to connect an antenna cable to the plug? How to choose a product to not regret your purchase? What advise specialists? This article will help to find answers to these questions.

Acquaintance with the product

The antenna cable is represented by a multi-layer wire that has shielding properties, thanks to which a stable signal transmission is carried out. Thus, the TV will show only with the connected antenna. Especially for this purpose it was equipped with a special connector for the connection, which is predominantly called an antenna socket. In another part of the connection, the plug place is assigned. The last homemade craftsman will have to be mounted on a cable that can be connected to the antenna, satellite plates or distribution television box.

What do you need to work?

Very often, people who are not accustomed to work with their hands, do not know how to connect a thin antenna cable to the plug. Judging by numerous reviews, there is nothing complicated in the connection, therefore, it is not necessary to resort to the services of specialists. It can cope with this and on your own. First of all, you need to get an antenna (coaxial) cable, knife or stationery cutter.

About cable design

Before interested, how to connect an antenna cable to the plug, you should know the device of the conductive product. The cable design is simple. It has: Central veins, copper wire, dense plastic insulation, aluminum foil (is the second conductive element), external insulation and shielding braid. The task of the latter is to make interference, the sources of which can be weather and mechanical impact. On the shelves of specialized stores have a wide range of products produced by domestic and foreign manufacturers. Since the presented products are of the most varying quality, some nuances should be taken into account when choosing, we will talk about.

What to pay attention to when buying?

Judging by the reviews, the question is how to connect an antenna cable to the plug, not the only thing you are interested in. What to pay attention to those who decided to purchase an antenna cable? Such consumers experts recommend the following:

• Select the product in which the outer shell with the designation 75. This suggests that in the cable the frequency of waves with a resistance of 75 ohms. This indicator has developed all modern televisions and switching equipment. This digit must occur along the entire length of the cable with an interval of 1 m.
• The value of the external diameter should not exceed 0.6 cm. If at this stage, the newcomer made an error, then it is not worth the upset, since everything is fixable. If in the plug diameter of the inner thread turned out to be larger than the diameter of the wire so that the compression was obtained by high-quality, it will be necessary to wind the insulating tape on the cable. How much will it take for this layers of the tape, each master decides on the situation. The main thing is that the cable to the plug is fitted as close as possible.
• It is best to purchase a cable with copper main residential and shielding braid. In this case, the buyer may encounter difficulties for the reason that most manufacturers in order to save their cables are equipped with steel central cores or apply copper sputtering on them. To produce braids, copper alloy is used, and shielding - foil.

About plug connector

According to experts, the normal connection of the antenna cable to the plug will be possible if its f. type connector This species Accepts analog and digital television signals. Judging by numerous consumer reviews, the f-plug is the best: it reproduces a high-quality television signal and easy to install, which is appreciated by many homely crafts. Since plug diameters may have a variety of dimensions, it should be considered. Otherwise, the plug will not match the connector and connect the TV will not work. Judging by the reviews, there are no cases when the TV is mounted close to the wall. In such a situation, you should use an angular F-plug.

What should I start?

Before connecting the antenna cable to the plug, you need to perform preparatory work. Connection is carried out in two ways: the shielding braid is worst, and you can also do without it. Judging by numerous reviews, the best and reliable contact is achieved with a wrapped braid. Cable is selected with a knife or cutter. To do this, it is retreating from its end to one and a half centimeters. Next, the outer insulating layer is cut in a circle. It is important that the braid and aluminum foil remains integer. Sliced \u200b\u200bisolation is removed. As a result, the braid, and the foil should turn out open. Then they turn back.

In order to improve the strength of the foil from the inside are wrapped with polyethylene. According to experts, the foil is often damaged during stripping. If the plug is placed on a cable with a twisted foil, the contact will be low-quality. Therefore, some of the foil some masters bend back to the conductive part from above. After it is necessary to remove insulation from the central core. In this case, the end of the wire is also retreating, but by 10 mm. It is important not to spoil the cable itself.

How to connect an antenna cable with a plug? Process description

This procedure starts after stripping the wire. First of all, you need to screw the foil on the first part of the plug. How to connect an antenna cable to the plug correctly? As experts are recommended, it is important to ensure that the central lived in turning to be in the core of the plug. There will be a plug for work, by which then the part of the central wire is removed. It is necessary to make it so that it is for a precipitant nut with no more than 0.6 cm. Then you begin to fit the second part of the plug to the very opposite. After performing these actions, the plug is considered to be ready for use.

Second way

Some newbies are interested in how to install a plug on an antenna cable without wrapping for this foil? According to experienced wizards, it is possible. It is enough just to cut the upper insulating layer and remove the cable braid. Next, the plug is dealt. It should consist of two halves. Plastic half of the open section of the cable is the first case. The second fork is delayed.

About the plug of the corner design

Judging by the reviews, there are cases when there is a need to move the TV with an antenna plug closer to the wall, which is problematic. Recovery in such a situation a special plug with an angular structure.

You can buy it in the store of electrical appliances. To connect this product, the technology described above is applicable. If the owner of the TV does not want to use the plug connection, then a soldering will become the best way. However, for a high-quality signal, the soldered area should be less.

In addition, if necessary, quickly connect the TV to execute it will be problematic. In this regard, the plug connection is considered the most convenient.

What mistakes allow newcomers?

Not everyone knows that some manufacturers of antenna cables The inner part of the foil is covered with polyethylene. Hard this material is quite difficult, even with a scalpel. If the cable can be cleaned, the presence of plastic will become a weighty obstacle for high-quality contact with a plug fork. As a result, the signal will be distorted. It is possible to prevent this if you turn back to the foil in such a way that it came out with its conductive side. Often, when comprised, thin braid wiring come into contact with the main cable living, as a result of which the quality of the received signal is not at the proper level, and maybe all the abyss. Often the antenna cable is placed in one plinth along with the electrical wiring. This, according to specialists, is unacceptable, because with this installation, the signal transmission will also be poor quality.

To connect the TV to the cable network or digital television antenna, you need to purchase a special television cable and to wear F-plugs on its ends.

With an illiterate solution to this task, the TV when receiving an analog signal can operate unstable or with interference, and the digital image and sound may disappear due to the signal loss in the cable and the places of its connection.

The high-frequency current of the television signal flows through another law. Everyone knows how underwear is pressed in a centrifuge washing machine: The more turnover, the stronger the centrifugal force acts on the water, and it is better removed from the underwear, the underwear becomes land. In his own body, many in childhood experienced, rushing on the carousels, the action of centrifugal force.

The high-frequency current of the television signal in the antenna cable is also flowing. The higher the frequency, the closer to the surface of the conductor it flows. The skin effect is manifested. If you take, for example, the copper wire with a diameter of 10 mm and the tube of the same diameter made of copper with a wall thickness of 1 mm, then the current with a frequency of 1000 MHz will flow on them with the same losses!

Therefore, in the antenna cables used for military and space equipment, to reduce the losses of the signal (attenuation), often the central core and cable braid are covered with a thin layer of silver and even gold. This is very expensive pleasure, and in everyday life, such cables do not apply.

Due to the small size of the television signal in the antenna cable and its high frequency, determine the presence of it in the cable and, moreover, to carry out measurements at home without specialized expensive devices, it is not possible. Only connecting an antenna cable to the TV will determine the presence and quality of the television signal.

Tv cable marking

The largest distribution on the market received antenna coaxial cables different manufacturers With a wave resistance of 75 Ohm grades RG 6U, SAT 50, SAT 703B and DG 113, which can be successfully used to receive analog and digital television signal up to the transmission from a satellite antenna with a frequency to 2.15 GHz. The brands are given in ascending order of the quality of the antenna cable - to reduce the loss of signal (attenuation) during transmission. Marking (designation) is not necessarily applied on the shell of an antenna cable throughout its length through each meter with a digital tag of a pattern.

This antenna cable marking indicates the following:

• Cabletech - manufacturer Cabletech (China).
• RG 6U / 48 - Cable brand.
• High Quality Coaxial Cable - high quality coaxial cable.
• 75 OHM - 75 ohm wave resistance.
• 055m - a label of a pattern, with each meter the label varies to 1.

How to choose an antenna television cable

On the shell of antenna cable, the marking should be mandatory, as shown above. Antenna cable must have a wave resistance of 75 ohms (all the TVs and switching devices are calculated on such resistance - amplifiers, splitters, consoles for receiving digital DVB-T2 channels). The outer diameter of the antenna cable must be at least 6 mm. Central veins and shielding braid from electrical copper. This requirements correspond to the antenna cables of the SAT 703B and DG 113 brands. In the RG 6U cable, the central lived steel coated with a galvanic method of copper, the screen of aluminum foil and braids from copper alloy, this is a budget option.

Describe all the television cables presented in the market is not possible, but the information provided is quite enough to choose the right one.

How to install an antenna plug on the cable

There is no need to invite specialists in order to connect the TV to the antenna cable. This work can perform each home wizard independently using a girlfriend if the instruction presented below will follow.

The voltage of an analog or digital television signal in the antenna cable is millions of volt lolts, so the antenna cable connected to the cable network or another TV is not dangerous for a person. You can safely separate the cable without turning off the second end of the splitter or TV. Not dangerous and when cutting a cable, a random short circuit between the central conductor and the shielding braid.

How to install on an antenna cable F-plug

The plugs are sold three sizes for the antenna cables of different diameters. When buying, pay attention to the F-plug approached for your antenna television cable. This type of plug is suitable for an analog, digital television signal and a signal that runs from the satellite antenna.

You can turn the F-plug to the cable by separating it in two ways, with a breakdown of the shielding braid, on the diagram on the left side, and without wrapping it, on the circuit on the right, in accordance with the cutting circuit below.

Reliable F-plug will be held in case of coasting shielding braid, but if you cannot turn it out, you can use the second way.

For the cutting of a television cable, a non-knife pressing, so as not to damage the shielding braid of an antenna cable, its external shell is cut along several centimeters.

After the shell is cut, it is rejected to the side and cuts off at the start of the cut.

Aluminum foil and copper braid are turned away. The screen in the antenna cables is in three versions: one copper braid, aluminum foil and on top of it copper braid (as in my case), only aluminum foil.

Many do not know that to give mechanical strength foil is covered with the inner side by polyethylene. Clean the plastic is impossible. If you turn the plug on the inner side of the foil of the antenna cable, then the contact will not be, or it will be very bad. So that this does not happen, you need half a turning foil half back, then the conductive side will be outside.

There are situations where the diameter of the hole of the internal thread F of the plug is greater than the diameter of the antenna cable. In this case, you need to put several layers of insulating tape to the antenna cable before breaking the foil to adjust the cable size. Next to do everything as described. Insulation from the central speaker on the technology described in the article "Preparation of wires to installation" is removed.

Foil is screwed down the foker "Cheating to the cable".

The central livelio of the antenna cable is bought so that about 2-3 mm remains to be left.

Hands up to the stop the second half of the plug, and the F-plug is ready for operation.

There are cases when after inserting an antenna plug in the TV socket, the cable has to be bend at right angles or it is impossible to install the TV close to the wall due to the interfering cable. In this case, you can use the F-socket - the plug of the corner structure.

The difference between the two plugs described is only in their form. The installation technology on the television cable plugs of the direct and angular design is the same.

How to install an old design plug on an antenna cable

Before the appearance of antenna F-plugs, the plugs of another design were used, which also did not require soldering, but were connected to the antenna cable in their technology.

Before starting the installation of the plug on the antenna cable, you need to hold it for the metal part, unscrew, rotating counterclockwise, plastic case. Then the housing is to wear on the cable so as not to forget.

The next step is to prepare an antenna cable to install. To do this, the blade of the knife is needed to cut through its outer shell for a length of about a centimeter. Next, remove the shell and cut the shielding braid by 5 mm. Delete five millimeters of insulation of central veins. Now the antenna cable is ready for sealing in the plug.

When refilling cables in the plug you need to exclude the touch of the conductors of the braid fasteners of the central core. Pliers crimped the petals of the antenna plug around the shielding winding. There should be no great effort. The main thing is that there was a reliable contact.

The last step is to turn plastic on the metal part of the plug and insert the plug into the television socket.

Where to insert antenna cable on TV

After the connector is installed on the cable, you can connect it to the TV. The jack for connecting the TV to the antenna or cable network is usually located on its back wall and labeling is applied in the form of an abbreviated inscription "Ant".

In the photo with the right of it, it is seen a nest for connecting an antenna. The socket is special, standard and different from all other connectors and sockets available on the switch panel. Therefore, it is wrong to insert an antenna plug to another nest is physically impossible. Any of the connectors are well inserted into the television socket, the installation of which is considered in the article above.

In modern TVs to receive a television signal, two connectors are installed to connect antenna: - cable (digital) television and satellite antenna.

One, which is denoted by RF (ANT 1 IN), is designed to connect the antenna of a digital television or cable network, such installed on all models of TVs, both old and modern. The second began to install recently, LNB (ANT 2 IN with external thread) is designed to connect the satellite antenna.

If the TV is supported by the DVB-S2 standard, then the satellite antenna can be connected without a receiver directly to the LNB connector. To receive digital television channels from a television tower to an individual antenna, the TV must support the DVB-T2 standard. Therefore, when buying a TV, you need to pay special attention to the list of broadcast standards that it supports.

To receive a TV signal from a specified connector, you need to select an antenna signal source Satellite television and perform automatic or manual setting canals.

How to connect an antenna cable to a TV without a plug

There are situations in life that an antenna cable is urgently to TV, and there is no plug at hand. You can temporarily connect an antenna cable without a plug. To do this, you must first remove the upper sheath for a length of 5 cm, develop and unscrew the shielding braid, remove the insulation from the central cable vein and the core itself beg in the loop. The width of the looping should be slightly more holes in the central socket of the connector.

If the connector on the TV is in the photo, then the central contact needs to wear an insulating tube. Next, the loop is inserted into the central contact, and the shielding braid is refilled into the screwdriver blade connector. The main thing is to avoid contacting the wires of the shielding braid with the central residential cable.

If the braid is aluminum, then you can insert it into the television connector and to fill thin copper wires into free space taken from any multi-core copper wire. So that the wire does not fall out from the TV connector, you can fix it with several toothpicks or matches. Such an improvised connector will serve quite reliably.

How to connect an antenna cable to crab without a plug

The cable preparation occurs in the same way as for putting on the F-plug, the central lived inserted into the crab f-connector, and the screen is put on the protruding part of the crab connector and is fixed by any wire or clamp. As a last resort, you can fix the cable, tightly casting several layers of the tape. It will not work no worse than with the F-connection.

If you use a clamp with a screwing device, the quality and reliability of the connection will not be worse than with the F-connector.

What antenna plug is better

The answer is unequivocal: the best of the three discovered plugs for the television coaxial cable is the F-plug. It is easy to notice in the photographs above, not even owning special knowledge.

As you can see, the antenna plug of the old construction and the Soviet antenna plug has a small portion of the central cable vein, not closed by an embossed braid. This violates the homogeneity of the wave resistance, which leads to minor losses of the television signal.

The F-plug does not have an open portion of the central veins of an antenna cable. Another advantage of an antenna f-plug is simplicity. Having a minimal set of standard tools, without skills, almost anyone can wear an antenna F-plug on the cable.

How to connect multiple televisions
to cable network or antenna

Connect multiple TVs to the cable network or an antenna that transmits an analog or digital television signal is not more complicated than one, except to be put on the cable not one F-plug, but several. To do this, there are splitters of a television signal, referred to as "Crab", they are also called "splitter", "splitter" or "divider".

In the crab there is one connector to connect a signal from an antenna or splitter in the entrance, marked in (input), and several connectors for connecting TVs are marked with OUT (output). If there is no marking, then usually the entrance is in the crab on one side of the case, and the outputs in a row on the opposite. All outputs for proper work Crab must be connected to TVs.

If you exit two, then to two TVs, if the output is three, then to three, and so on. There should be no free connectors on the crab. If there is no connected output, it must be loaded into the resistor resistance of 75 ohms. Or they say, put the plug. But at the same time, part of the useful signal will be lost, it is better to use a crab that has the number of taps equal to the number of connected TVs.

The design of the splitter is a thin-walled housing from the silumin or brass, in which the connectors for connecting F-plugs are at the same time. The divider diagram is usually transformer, one twist of enameled wire with a diameter of 0.2-0.4 mm, which has been produced through ferrite rings or tubes. Installation of transformers is carried out by attachment. The housing is hermetically closed with a metal lid and is selected or fixed with glue.

For fastening a crab on the wall there are eyeles. In the case there is also a thread with a screw for grounding, although where to take an earthen wire in the overwhelming number of apartments, it is not clear. It is usually not ground, so it is possible on some velocked channels from the wires of electrical wiring, the Internet, telephone passing next to the television cable. If possible, when laying the cable, such a neighborhood should be avoided. For more detailed acquaintance with the design and electrical scheme Crab can visit the page "As an antenna television amplifier to connect to the power supply".

If there is a desire, then the crab, not inferior technical parameters Expensive samples of famous firms can be made with their own hands.

When connecting TVs via the crab, the level of the television signal, reaching each TV connected to it, regardless of whether the TV works or not, due to losses in the crab and the additional cable length will decrease. When connecting two TVs - by 30%, three - by 60%, four - 90%, and if an analog or digital television signal coming to the crab is already weak, then the image quality on all connected TVs can significantly decrease. Typically, the signal in cable television is quite powerful, and its level is enough for the normal operation of all connected to the TV crab.

How to connect an antenna cable
to the highway of the television signal at the entrance of the house

Typically, the television cable is paired on the roof of the house and further, after enhancing the main amplifier, branches down at home. As there are different packages television programs, At the entrance to the entrance, the cable is branched using a filter crab, which is a crab with two outputs. From one output, the signal comes out unchanged, and from the second output is a trimmed filter at a high frequency. Thus, it is limited to watch all television channels for those who buy cheaper social packages. Therefore, two cables pass along the entrances down.

If you inspect the walls in your entrance, then you will definitely find a metal box on each floor, from which television antenna cables go to apartments. In modern houses, the boxes are no longer installed, and everyone is placed in wall lockers, in which case you will see a metal door with a lock. In these boxes there are subscriber tv television signal. If you remove the cover from the box or open the door of the locker, then you will see approximately such a picture. In the photo on the left, the coupler for the subscribers of the full package of television programs, and on the right for the subscribers of the social package.

According to the rules, the couplers must be fixed and grounded, but the cables to simplify the work do not. Perhaps this is better, since if the grounding is poor quality, then such a ground can create interference.

The couplers installed in switching boxes are not fundamentally different from crabs to connect multiple televisions, but they work somewhat differently. One F The connector is used to connect a cable that runs from the In (Login). The second OUT (output) is designed to transmit the signal to the next coupler, the installed floor below. The remaining F TAP connectors (removal), they can be from one to five, are designed to connect subscribers, that is, to connect television cables going to the apartment.

Not connected subscriber connectors should not be. In case of disabling one subscriber, allow for non-payment, it is allowed instead of a cable to install a F-connector with a loading resistance of 75 ohms. If you want to connect a new subscriber to the cable television network, then the splitter into two subscribers as in this example, Replaced with three disconnect.

Thus, to connect the TV to the cable network, a segment of a television cable required length with the antenna F-connectors installed at the ends is. One F-connector of the antenna cable is connected to the subscriber coupler in the entrance, and the second is to the TV.

What is the difference between the crab from the coupler

In the crab, the power of the incoming television signal is usually divided into equal parts between all connected TVs. Unlike the crab, the subscriber in the reseller is allocated only a small part of the signal incoming signal, about 6 dB.

To ensure a sufficient level of the television signal entering the subscribers, the signal to the input of the branch is supplied from the main power amplifier, depending on the number of connected subscribers. In the aggregate, all the couplers installed in one entrance are crab with numerous branches.

Amplifier television signal

If, after installing the crab, the image has become unsatisfactory, then it will have to additionally put a TV amplifier before it. The amplifier is arranged in the same way as the crab, but in its case there are additionally installed more active elements (transistors or chip), enhancing the video signal. For a television amplifier, will additionally need a supply network voltageAnd it is necessary to take into account when choosing a place of installation.

The television amplifier must be installed as close as possible to the television signal source, since the amplifier enhances with a useful television signal and noise. The photo shows the TERRA HA123 television amplifier, designed to work in a home television network with one output, with the ability to adjust the gain from 8 to 28 dB. If possible, the ideal option is to place the amplifier directly in the box of the trunk splitter of the signal in the apartment.

If the TVs are located not far from the television amplifier, it is more expedient to install instead of a television amplifier and a crab only one television signal amplifier with multiple outputs. For example, Televes 5523 television splitter amplifier (Spain) having a gain of 16 dB and five outputs, which makes it possible to connect to 5 televisions to it.

If the signal is taken from an individual antenna, there are amplifiers that are designed to be installed directly on the antenna instead of matching the loop. Antenna amplifiers Provide high-quality reception at a distance from the transmitting antenna to 100 km.

An antenna amplifier Depending on the signal level at the antenna installation point, it is required to select the gain by the gain for each specific case. The supply voltage for such amplifiers is supplied by a coaxial cable.

Fighting interference
Installation on the antenna cable of the ferrite ring

Sometimes after connecting to cable television Or the antenna of several TVs using a crab on some channels may appear in the form of chaotic arising white or black dots, running waves or grid on the screen. When receiving digital television, the image and sound can periodically disappear or completely absent.

This may occur due to the angular signal input of the high-frequency signal of the interference from the heterodyne, parallel to the connected TVs or other sources of interference. Interference is not excluded from televisions connected in neighboring apartments.

The level of such interference can be significantly reduced or even eliminated interference with the help of the installation on the Ferrite Ring cable.

Effectiveness of suppression of interference by a ferrite filter depends on the area of \u200b\u200bthe ring cross section: the area more, the more the inductance of the throttle made. The ferrite ring dressed on the antenna cable forms the throttle and together with the p-shaped high frequency filter forms a high-frequency. Maximum interference suppression will be achieved when you install two rings on an antenna cable at its ends.

Ferrite rings are sold in stores and there are two types: solid and consisting of two halves pressed into the plastic case with latches. But you can do without unnecessary costs. If you look at the interface wires coming from system Block Computer to the printer, scanner, monitor and other peripheral equipment, you can see the thickening of cylindrical cables. These are ferrite filters.

Surely you dust old kinescopic monitor Or there are unnecessary interface cables. It is enough to cut the plastic with a knife, remove the ferrite ring and install it on an antenna cable. After installing a frit ring, the interference on the TV screen will no longer interfere with viewing television programs.