How to connect a TV cable between an antenna. Connecting a TV: how to connect the antenna plug

A home TV network can be compared to a chain, and any chain is only as good as its weakest link. Cable connections can be considered such a vulnerable point.

If you do not pay due attention to them, a situation often arises when, in the event of poor reception, all the blame is shifted to the antenna. And the reason for this lies precisely in an inexpensive coax with inappropriate parameters, which, moreover, is made up of incorrectly connected segments. A weak connection is where a large percentage of the signal from the antenna gets stuck without reaching the TV receiver. So let's learn how to connect, how to connect an extension cord and how to handle coaxial connectors so that the image is bright and clear.

Cable device

Sometimes you have to make adjustments to an already installed home TV network. This happens when rearranging furniture, or if an additional television receiver “starts up” in your home, or a section of the coaxial cord is simply damaged and requires an insertion. Then you are faced with the task: how to lengthen or how to increase the damaged area to the desired length? Before you get serious about the solution, learn how to connect correctly, because any inaccurate connection of the TV cable is fraught with loss of reception quality. Here it would be nice to remember the cable structure.

• make a cut in the outer sheath of the television wire at a distance of about 1 cm from the end, rotating it with your free hand;
• remove the cut part of the insulation;
• lay the braid along the wire like the lapel of a sleeve;
• Cut through the dielectric layer 2-3 mm closer to the end of the cable to remove this protective layer from the central contact.

This process should be repeated for the other end of the cable.

Connection via adapter

Using a TV cable connector, you can both extend the television cable and connect its damaged sections in your home television network, be it a satellite or terrestrial TV antenna installation. This is a small metal piece whose job is to connect the signal transmission between two sections of the antenna cord. The design of the connector is based on the method of joining using F-connectors for a television cable.

Using the F-terminal connector provides good quality signal in the cable. It connects the selected wires precisely without unwanted gaps. Its installation does not cause problems even for an amateur.

You need to place an F plug on each end of the wire and screw it tightly. Now it’s the turn of the “barrel” - as the connector is sometimes called. There is a thread on both sides, and in the center there is a receiving hole for the central conductor. Place the ends of the coaxial cables into the adapter and secure by tightening the threads.

Devices of this type are completely corrosion-resistant, they are highly resistant to mechanical damage, so they can be used for installation both inside and outside buildings. The absence of corrosion significantly extends the life of the connection without the need for cleaning and maintenance.

Connection of plug and socket

This method is suitable for you if you already have a “destination” to which you need to direct and then connect the antenna cord. This can be the F-type receiving socket of a TV or set-top box; you can also connect a coaxial cable with a plug to the nearest antenna socket and connect it to the F-socket of the extension cable. For such connections it is convenient to use corner terminals.

Twist

The simplicity of this, outdated today, method of connecting the ends of the cable does not compensate for the signal losses that will inevitably occur with any deformation of the joint. In addition, twisting by itself will not be enough. If you have already decided on this type of merging of coaxial cables, then stock up on at least a soldering iron and electrical tape. Solder the connection of the central cores to each other and, separately, solder the braids. Then carefully insulate everything.

Although this concerns general rules handling cables, for joints made by twisting and soldering, it is especially important:

• do not drop objects on the television cable and protect it from shock;
• do not bend the joint - it is fragile;
• Do not allow the spliced ​​wire to “dangle” in the wind.

Typical connection errors

The most common mistake when stripping and connecting a coaxial cord is that the aluminum braid may be wrapped in a foil layer. As a result, the inner side of the foil, not being conductive, is on top. And in such circumstances, you should not count on contact between the screen and the connectors.

It is also common to find incorrect selection of the plug for the cable diameter. In the worst case, you won’t be able to fit such a terminal or connect a plug and connector that do not match in diameter; in the best case, the resulting “looseness” will play a bad joke on the quality of the picture on the TV screen.

Rigid bends of the cable at the joints, as well as carelessly cut insulation from the central core, do not contribute to high-quality fusion. Too sudden movements when cleaning the core can lead to notches on it, which will later cause it to break and lose contact.

Often due to unforeseen circumstances, such as during cleaning or repairs, the antenna shell is damaged and the shield braid is damaged. In most cases, damage requires the time-consuming and costly process of completely replacing the cable. And sometimes a rearrangement occurs, the TV ends up in a different place and the length of the TV wire is not enough. However, it is possible to independently increase (extend) the television cable with a minimum of costs in a short period of time.

The structure of a television cable

The standard antenna operates at frequencies up to 2.1 GHz. Basically, all TV models and amplifiers have resistance parameters of 75 Ohms. The most common for hosting television networks is. Its design completely eliminates the influence of external electromagnetic radiation and other interference emitted by electrical devices on the transmitted signal.

A television wire consists of the following elements:

1. Round PVC shell.
2. Screen (braided, similar to foil).
3. Central core (copper) in the insulating element.

Standard diameters of this type range from 4 to 8 mm. The presence of foil on a braided wire means that the product is of good quality.

How to extend a TV cable using f-connectors

TVs in force design features are designed so that the television broadcast signal is received from an antenna or other transmitting device. The antenna is connected to the TV using a TV cable. The coaxial cable can be laid permanently and have a specified length for connecting to the TV. But sometimes the length is not enough.

The cable is often completely changed if the TV is moved to another place where the old cable does not reach. This is an unreasonably expensive process. To extend an existing cord, you can use one of the three most common methods:

• Using a TV extender.
• Using F-connectors.
• Soldering the central core and screen using a soldering iron.

Extension cords on sale range from 2 to 20 meters long. But this is not the most successful solution, since extension cords are not cheap and those of the required length are not always available.

Using an F-socket adapter is the best option for quick and inexpensive extensions. For this type of connection, you must have two F-plugs with pieces of wire of the required length. The type of plug is selected according to the diameter of the wire.

Connection is being made coaxial cable without soldering as follows. First you need (preferably with a sharp knife) to cut the protective shell along a centimeter. Then bend it back and remove it completely. In the same way, cut through the shielding braid (this can be foil or wire mesh). Do not remove the braid tabs, but bend them back towards the rest of the segment. Next, carefully clean the central core. When cleaning, try not to leave marks on it. The central core is copper; slight damage can lead to its mechanical failure when installing the plug.

When both ends of the section are stripped, push or screw the F-connector onto the back-curved shields. The iron base of the plug should be firmly seated on the screen shell. Cut off the excess protruding remnants of the screen. As a result, the central core will stick out from the connector. It should be shortened to 5 mm so that the plug can be screwed onto the remaining parts of the F-connector structures. Connectors for multi-core cables - connectors - are also attached without soldering.

Connecting a television cable by soldering

Soldering can be called the most convenient, reliable, inexpensive method. Using a soldering iron and solder, you can securely fasten pieces of cable of different diameters or attach (fix) an aluminum foil screen to a wire screen braid. This technology allows you to connect any shielded wires (low-frequency, high-frequency, television, etc.) without loss of the transmitted signal.

Before you start soldering the joints, you need to strip both ends of the insulation at a distance of 20 mm. Bend the screens back. Clean the central core in such a way that a small step (2-3 mm long) is formed in its insulating element. As a result, the copper core will be half stripped of its protective coating. Next, you need to separate the cut half of the insulation and the central core from each other at an angle of 45 degrees from each other.

Then both copper wires need to be tinned with tin solder (use rosin). After the ends are tinned, solder the copper wires together. At the soldering site there should be no sagging, drip formations, or icicles from leaking tin. If there are any, you need to clean them with sandpaper or a file to a smooth surface. Next, using light pressure, we bring the steps of the protective layer together and isolate the soldering area.

When the soldering point has been reliably insulated, we begin connecting the screen braid of both ends. Please note that the central core braid is made of aluminum foil, has a paper backing on one side, and paper is not a conductor of electronic signals. Therefore, it is recommended to lay the screen shell with a paper base in an insulated part of the central core, with an aluminum part on the outside. For example, when connecting two aluminum screens, the aluminum part of one screen must be in contact with the aluminum part of the other. This provides stable signal transmission and provides the required image quality for a television device.

After connecting the screens, you need to fix this place with help. At the end of the procedure, treat the joint with several layers of polyvinyl chloride insulation.

Are there any other ways to extend the TV cable?

If you don’t have the necessary tool (soldering iron or crimping device) or an F-connector at hand, the TV cable is extended by twisting the central core and the screen braid together. This option is considered, although unreliable, acceptable.

How to connect the cable to the plug?

TO additional method Extending a TV cable involves using a device such as a splitter. Using this device, several pieces of wire are connected at once from one transmitting point. Many other methods have been developed for connecting cable wiring to the plugs of electronic structures, for example, a connector (plug connector) is used to connect an Internet connection. Since the Internet cable is multi-core, a plug connector of this type is connected using crimping.

Thanks to the development of modern radio electronics, there are many options for use and design features of cable connectors and plugs, so there will be no difficulties with extending the cable.

Nowadays, few people can imagine their life as a bouze cable television. Everyone can find a channel of interest that will allow them to spend their free time profitably. Connecting the TV to an antenna allows the TV to receive digital signal, which significantly improves the quality of the broadcast image. An incorrect connection can make the signal unstable. You can read about how to connect an antenna to a TV in this article.

Before you start connecting the antenna, you need to take care of purchasing a high-quality television cable, at the ends of which you should attach F-plugs. If the antenna and TV cable are not connected correctly, the TV signal will be lost, resulting in poor picture quality. The most crucial moment when connecting an antenna is the correct choice of cable.

If you are using a TV cable for connection Low quality, even the most modern TV and correctly attached plugs at the ends of the cable will not save the situation.

To know which cable to choose, you must first study the issue of the movement of high-frequency current along the antenna cable. IN electrical network current flows along the entire perimeter of the conductor cross-section. But here is the movement of high-frequency current TV signal happens differently.

Steps to install the antenna plug on the cable:

• You can make the connection yourself, since the voltage of the television signal does not pose a danger to human health.
• When purchasing a plug for antenna cable You should pay attention to ensure that the plug size is suitable for the specific television cable.
• To wind the plug, the cable can be separated using two methods: the shielding braid can be wrapped, or it can be left unwrapped. The first method is considered more reliable.
• To separate a television cable, you need to cut deep into the outer sheath of the cable. The pressure of the knife should not be too strong, otherwise the braid may be damaged.
• The incised shell is folded back and cut off where the cut begins.
• The aluminum foil and copper braid are unscrewed. To give the foil strength, it is necessary to cover it with polyethylene on the inside.
• Half of the turned-off foil is folded back so as not to deteriorate the quality of the contacts.
• The central core is freed from insulation, and the plug is screwed onto the foil.
• The central core is “bitten off” so as to leave 2 to 3 mm.

The second half of the plug should be screwed in until it stops, then both plugs will be ready for use. It happens that after inserting the plug, the television cable prevents you from placing the TV close to the wall. To avoid this, it is necessary to install the plug with an angled design.

Connecting a satellite dish to a TV without a receiver

Connection home TV to satellite television is associated with the receiver. This is how you used to be able to view television channels. Today, you can make the connection yourself without using a receiver.

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

If the satellite dish is connected and configured correctly, the TV will receive the signal satellite operator, which will allow you to use satellite TV without connecting a receiver. To correctly connect the antenna cable satellite dish must be connected to a connector that has a special input. It is usually located next to the input of the over-the-air antenna.

Advantages of connecting without a receiver:

• No need to buy additional devices;
• The interior is not disturbed, so the receiver does not take up space.
• You can only use one remote control to watch a channel.
• The number of wires is significantly reduced.

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

Instructions: how to connect the antenna to the TV

To connect the antenna cable and the power supply, you need to connect the cable to the plug in the power supply, where the antenna is active. First of all, you need to properly separate the cable. To do this, you need to move one and a half centimeters away from the end of the cable, and then carefully cut off the insulation. This needs to be done in a circle.

When making cuts, it is important to ensure that you do not damage the braiding, as well as the cable shield, which is located under the insulation.

After this, you need to push the screen hairs and foil back. It is necessary to step back 5 mm from the braided edge in order to cut the inner insulator and remove it. Then the cable is carefully inserted under the plug so that the braid and screen touch the lower tinned area.

How to prepare the antenna cable:

• Find the end of the cable.
• Remove insulation.
• Move the screen.
• Cut off the inner layer until the inner core appears.
• Connect the cable.

In order for the voltage to reach the TV cable from the antenna cable, it is necessary that the bottom tinned plug pad be touched. The central core braid must not be allowed to short-circuit. If a short circuit occurs, the power supply indicator goes out or lights up dimly.

How to connect a TV antenna easily and simply

It is best to organize a home television antenna using a splitter. A splitter is a metal box into which one input F-connector goes in and several connectors come out. There can be several or many outputs: from 1 to 6. Depending on this, you can connect the antenna to several TVs at once.

To connect home antenna correctly and efficiently, it is necessary to use a modern antenna cable that has double shielding.

Double shielding eliminates a lot of electromagnetic interference. The central core of the cable can be completely copper, or it can be copper-plated. When choosing a cable, it is important to pay attention to the model of your specific TV.

How to connect a custom antenna:

• Insert the cable into the TV socket.
• To connect several TVs, you can use a splitter.

To optimally connect several devices, you need to use a splitter. It will distribute the signal evenly. This connection is convenient if repairs are necessary. If TVs begin to show poorly, it is necessary to check the operation of the signal network.

Instructions: how to connect an antenna to a TV (video)

Street or indoor antenna You can connect it to the TV yourself. The voltage is safe for human life, so even a beginner can perform the installation. From correct connection The quality of the signal will depend, and, consequently, the convenience of watching TV. The antenna is connected using a television cable. His choice will depend on the TV model. The cable must be High Quality, otherwise the signal will not reach the TV, which will lead to frequent interference.

It is difficult to imagine modern housing without television. For stable reception of a TV signal, a TV antenna is required, connected to the TV with a special TV cable. The average service life of such a wire when properly connected is 10 years. Temperature changes, room renovations, rearrangement of furniture and other unfavorable factors can reduce the service life of the cable.

Wire connection methods

Some people turn to specialized workshops to install a TV antenna, but most home craftsmen prefer to do this work themselves. It is not particularly difficult and can be done by anyone who has basic knowledge of electricity and understands how to select and install an antenna cable for a TV.

There are several ways to connect antenna wires to each other:

1. Soldering (using a soldering iron with tin and rosin).
2. Twisting (mechanical twisting of the free ends of the wire).
3. F-nut connection (simple and securely fixed threaded contact).

Due to the complexity of the first two options, we will consider the most current, easily accessible and time-tested method of connecting a cable using a special connector - an F-nut. Although there are two more ways to solve the problem, they require much more time and effort, without guaranteeing one hundred percent success in terms of high-quality signal reception. The first method additionally requires skills in handling a soldering iron.

Stages of work completion

Before you start working, you should disconnect the television receiver from the power supply. Then you need to carefully inspect and feel the antenna wire for wear on its outer insulation. If there are microcracks and peeling in certain areas, it is advisable to completely renew them. After this, you need to measure the length of the TV cable that requires replacement or extension and write down the indicators. Highly undesirable a large number of docking nodes, since each of them affects the quality of the received signal. The best option is to replace a single piece of antenna wire from the divider to the TV.

When extending the cable, it is better to create a reserve of its length for a possible change in the location of the television receiver in the future, and roll the excess into a ring of small diameter and secure it by wrapping it with adhesive tape.

Before going to buy materials for an antenna, it is advisable to cut off a small piece of the existing wire as a visual example for selecting a similar one. This will help you choose the right cable if you don’t know its letter or number designations.

Explaining how to choose a cable for satellite television, experts advise choosing it according to the presented fragment or depending on the brand of television receiver. You also need to decide in advance on the method of laying the antenna wire (open or hidden).

At open method The wire is attached to any flat surface using clips pre-fixed to the wall or ceiling. In this case, light cables with protection or flat wires made of copper or aluminum with rubber insulation are used. It is also advisable to use plastic cable channels with a locking cover, in which, in addition to the one in question, other wires are placed: telephone cord, power supply to a computer or air conditioner, etc.

When using a hidden installation, the cable is mounted in a strobe under a layer of plaster, floor or baseboard. With this method, brands such as APV, APPV, VARN, APS, etc. are used. It requires a slightly thicker layer of external wire insulation. Having purchased the required quantity of cable of the required quality and decided on the installation method, you can begin installing the antenna cable.

Structure and installation order

To understand how to connect the antenna cable to each other, you need to get an idea about him general structure . Experts call it a special coaxial wire for transmitting a TV signal, image and sound. There were two main dwellers in it:

• central (receives video and audio signals);
• shielding (protects against magnetic and radio interference).

A coaxial television cable consists of four components. The main one is the central rigid wire (it is copper or aluminum, filled with continuous insulation made of polyethylene or fluoroplastic). This wire is wrapped in a thin braid of copper or aluminum. The presence of insulating polyethylene prevents the two main wires from contacting each other, which is a critical condition for high-quality signal reception. The final layer is the outer insulation, which protects the cord from mechanical damage. The most commonly used wires are RG-6, SAT-50, SAT-703.

To understand how to connect a TV cable to each other, you must follow the instructions:

If the F-nut does not fit tightly, you need to crimp it with pliers directly on the wire until it is securely fixed.

Splitter device and principle of operation

If the goal is to divide the feed signal into several receivers, use divider or "crab".The original name of this device is splitter. It is a box with connectors for connection with an F-nut.

The inscription IN on the connector is always the same on the divider and is used for the signal supply cable. The inscription OUT is intended for cables going to receivers (there may be several of them). The number of connectors labeled OUT should always be one more than TVs, that is, for two TV receivers - 3 connectors, for three - 4, etc. It is undesirable to leave empty connectors, as this leads to deterioration of the signal due to loss of resistance in the cable. But if the task is to divide the cable into 4 or more TVs, you should connect special splitters with amplifiers.

Before connecting the receiver, all that remains is to figure out how to properly connect the antenna cable to the plug, that is, directly to the TV. A nut connection is also used here. The plug can be straight or angled. Which one to choose does not matter, since there are no fundamental differences between them. Sometimes there are cases when the straight plug (used most often) is inconvenient to connect due to external interference.

After making sure that all the necessary elements of the television antenna are securely connected and that they are resistant to external mechanical loads, you can turn on the power and begin tuning the TV. Independent work Properly connecting the coaxial antenna wire is not a very difficult task and is quite within the capabilities of a person who wants to learn something new.

Do you still watch TV? Despite the increasing popularity and accessibility of the Internet, the share of television viewers in Russia is not decreasing. The expansion of thematic channels has led to the individualization of preferences - everyone can now find a program to suit their taste. But what to do if the antenna cable was chewed by a dog or you bought another TV to install in the next room?

The reason for the need to connect the antenna cable may also be redevelopment in the room, when you need to add the missing length. There are several ways to accomplish this: using F-connectors or a splitter, soldering or twisting contacts. I will tell you each of the sounded methods with the nuances of their application. Don't switch!

Radio mechanics highlight the following options connection and extension of the antenna cable:

1. F-connectors are a special metal structure that allows you to reliably connect two pieces of cable without the use of a soldering iron or additional insulation. The method is often used when, when moving the TV to the other end of the room, the available supply of cable is not enough or the damaged section needs to be replaced. This is the simplest and most economical method, as opposed to laying a new cable directly from the antenna.
2. Splitter - used to evenly divide the signal coming from the antenna into two TVs. Connection to the device is made using F-plugs.
3. Soldering is cheap, but at the same time reliable method connections. To implement it, you do not need to look for adapters and other components; usually everything you need is already available at home. It is possible to connect any shielded cables: with a different number of central cores, diameter, type of screen (for example, copper braid and aluminum foil).
4. Twisting is the least preferable method of all presented, since it leads to a strong loss of signal quality. Due to its unreliability, it can only be considered as a temporary solution, in the absence of F-connectors or soldering tools.

With the transition of analogue broadcasting to digital view, the requirement of televisions for the broadcast signal has increased. Residents of suburbs and villages now use TV tuners with amplifiers. Therefore, the quality of the connection of television wires came to the fore.

Extension of TV cable using F-connectors

This option for connecting the wire involves visiting a store where you need to purchase two F-plugs (for each of the 2 ends of the cable) and one adapter - F-socket. It is recommended to take a piece of TV cable with you, since components are sold for different diameters. The tools you will need are a regular or construction (segment) knife and wire cutters.

Building up an antenna cable begins with preparing its sections:

1. Make a careful cut into the outer shell. For ease of operation, the length of the cut should be greater than the length of the F-plug body. In the future, it can be adjusted by removing the excess part of the central core.
2. Wrap the shell in opposite direction and remove it completely.
3. Turn the copper shield and the foil underneath towards the remaining outer shell. To perform the procedure, they can be slightly incised. At this stage, pay attention to the possible presence of a coating of a thin layer of polyethylene or lavsan on the inside of the foil. These materials greatly impair the transfer of contact to the F-plug housing. To solve the problem, screw back half of the wrapped foil. This way the side with poor current transmission will be on the inside.
4. Using a sharp knife, cut the insulation of the central core. Try not to leave notches on it, as they reduce strength and can lead to breakage.
5. Take the F-plug and screw it onto the cable. It must fit snugly, since the fixation is achieved only by clamping force.
6. Trim off any excess center core. Its edge should protrude 3-5 mm beyond the F-plug body.

If the diameter of the cable is smaller than the internal diameter of the F-plug, then before turning off the screen with foil, wrap electrical tape around the outer sheath.

This completes the preparation of the two ends of the cable. Now take the F-socket and connect the first and second plug to it. Fixation is ensured by screwing the movable head of the F-connector onto the thread of the adapter. The result will be a neat and reliable connection. In its place, you can also install a splitter, which will be discussed later.

Extending the cable using a splitter

This device is designed to distribute the input signal evenly. Accordingly, it has one incoming connector (labeled with the word “IN”) and several output connectors (labeled with “OUT”). Using a splitter, you can not only extend the cable, but also route it to two or three TVs at once.

The inlet hole on the splitter itself is similar in principle to the F-socket. Fixation occurs due to a threaded connection. The process of extending the cable is similar to that described for F-connectors, so there is no point in dwelling on it separately.

Connecting TV wires by soldering

For this method you will need a soldering iron, solder and rosin (an alternative is soldering acid). You should also have basic soldering skills.

The method allows you to connect different cable variations. Let's consider step by step the process of soldering two cables with a single core and a double screen (copper braid + aluminum foil):

1. On each cable, make a cut along the outer sheath 5-6 cm long.
2. Unscrew the shell and the screens underneath it - copper mesh and foil.
3. Cut the central core along with the insulation to a length of 2 cm.
4. Cut off part of the insulation from the central core - the result will be some kind of step. When folding two parts of the cable, this design should ensure complete closure of the contact, with virtually no gaps.
5. Bend the central core away from the insulation by 45 degrees. Tin it and solder it to the second part of the wire. In the absence of an assistant, before soldering, the cores can be tied with thin wire taken from a copper screen.
6. Inspect the soldering results. If the solidified solder has sharp edges or sagging, remove them using fine-grained sandpaper or a file.
7. Close the two steps cut from the insulation together, removing excess if necessary. Secure the resulting structure with insulating tape - 2-3 turns.
8. Replace the foil on the two parts of the cable. On the inside it is covered with a non-conducting layer, so you need to properly wrap this part of the screen, ensuring contact between the conductive sides.
9. Return the copper mesh - first one, then the other. To improve contact, wrap the area with several pieces of tinned wire of the same diameter. Then solder these parts.
10. Unscrew the outer shell one by one. As a result, one should envelop the other. Secure the connection with insulating tape.

At the output, you will get a durable and sealed junction, which has virtually no effect on the quality of signal transmission.

Expert opinion

Egor Razumny

I can assemble and disassemble computers, laptops, tablets, phones. Sometimes successfully. I have mastered the skills of diagnosing breakdowns with using Google and Yandex.

Of course, soldering is stupid. There are no problems with the central copper core, but the braid is usually made of aluminum alloy, which is almost impossible to solder. But if you really need it, the recipe is this: wind several turns of tinned wire onto pre-twisted braided pieces. Tin this area and, after cooling, flatten it with a hammer. I recommend using the SAT-703 cable from the Italian company “CAVEL” with a linear attenuation of 16.5 dB/100 m. The central core is copper. Braid - tinned copper. In this case, both conductors are soldered with ordinary rosin.

Twisting method

Use this option only as a last resort, when you need to immediately provide a signal to the TV, and you don’t have F-connectors or a soldering iron with solder at hand. Twisting in any case will lead to a significant loss of signal quality, and during the connection of the central core it often breaks.

In general terms, the twisting technique is similar to soldering. You will need to prepare the two ends of the cable in a similar way, then fold them parallel to each other. First, twist the copper mesh and insulate the area with PVC tape. Then the central cores are connected. Considering the temporary nature of the work and the good insulation of the copper screen, the cores can be left as is - bending them to the outer braid is fraught with a break.

These are all methods that can be used to extend the antenna cable. The simplest option is to use F-connectors - they are not expensive and do not require special tools for installation. I recommend soldering when connecting two wires with different characteristics. To branch the signal to several TVs, use a splitter. Twisting is a temporary method that should be replaced with a more reliable one in the future.