Built-in splitter. Antenna splitter of a television cable (crab): which is better

Nowadays, anyone uses television devices that are capable of reproducing the information signal coming through TV communications. To create such data lines for data transmission, many leading companies engaged in the production of electronic devices have developed special accessories.

Thanks to such settings, the user is given the opportunity, without any restrictions, to create multi-level information nodes capable of sharing the signal coming from the receiver's antenna to the television equipment. If the user needs to connect a large number of TV devices, then he needs to install the same number of terrestrial or satellite antennas, which is irrational in terms of investment to organize such network nodes. In this regard, a person, depending on the technical task, must use one of the devices:

- TV divider or splitter - allows you to connect multiple television devices to the same broadcast antenna. This device evenly distributes the signal coming from the antenna - receiver between the devices. Thanks to this, the user receives the same image on all modules reproducing the received signal. TV dividers can have a different number of output channels, which, depending on the model, can vary from 2 to 8 units. The signal range with which the device is able to work varies 5-1000 MHz, which is consistent with the standard information stream received by the broadcast antenna.

- For satellite devices It is recommended to use more powerful modules, in which the signal frequency is 5-2500 MHz. When installing the splitter, the user must take into account that the signal is divided between all television devices in an equal percentage, therefore, the more connections, the worse the image on the TV equipment will be. In this case, it is recommended to use better receivers of the information signal or use special amplifiers.

- Adder - a module enabling the user to simultaneously connect a satellite and terrestrial antenna to a television device. Such a design is suitable for solving problems of ensuring the operability of TV equipment in the event of an accidental disconnection of one of the signal-receiving devices.

Splitters and adders are indispensable modules if the user wants to simultaneously connect several television devices to the same antenna.

TV splitter, antenna splitter, crab for antenna

Splitter, splitter or crab called a special product designed to create the ability to connect one antenna cable immediately to a certain number of TVs. Such devices are also called antenna dividers or television crabs. The essence of the splitter is. that it divides the signal into absolutely equal parts and thereby, the image quality remains the same for all connected TVs. This device is perfect for those who have many rooms and televisions.

Television crab can be connected thanks to a special F-connector. In some models of the antenna divider, the inputs and outputs can be coated with thin layers of gold or silver. This provides better conductivity, and therefore improved signal quality. These devices are classified by frequency, which varies from five to a thousand hertz.

Our online store electricians website provides a wide selection of splitter models. These devices allow you to provide more comfortable conditions for installation and installation of cables for the TV. In order to install the splitter, you do not need to have any special skills, even a simple layman who has never encountered electrical equipment can handle this. The product is made from quality materials, which does not limit the scope of these television splitters.

With two televisions in the apartment it’s hard to surprise anyone now. Technology, and the signal receiving devices themselves, are constantly evolving in our fast-moving century, which will inevitably affect the price reduction of older models. And this, in turn, leads to the fact that almost every family can afford a second television, or even a third. Agree, it's still convenient when you can watch your favorite shows in the kitchen or in your room, without disturbing anyone from your family. And in this case, we definitely need an antenna splitter.

Active or passive: how to make the right choice?

Do not even think about just connecting a couple of wires to the antenna in parallel and thus getting another signal source. The quality of the image as a result of such an operation will be very poor - there will be multi-contouring, the contrast will decrease, etc. Therefore, it is necessary to use an antenna splitter, or, as it is popularly called, "crab".

If the signal source is good, which can be determined visually, and before that there was only one TV in the house, then the model assembled on the basis of resistive dividers is quite suitable. Such an antenna splitter is considered passive and, although it provides good signal matching, it nevertheless introduces a certain attenuation into it, proportional to the number of outputs in strength. This type is well established in a large city or nearby metropolis, where the broadcast power is quite high.

Accordingly, with poor reception or a large number of receivers, it will be better to use an active type antenna splitter. Such a device not only separates the incoming television signal, but also enhances its power.

When buying a splitter, pay attention to the attenuation level, which is indicated in decibels both on the label of the device itself and in the accompanying instructions. The lower the value of this indicator, the better. If on the TV menu you can see the frequencies of the received channels, then remember the highest value from them and check that it is included in the selected device.

How to connect an antenna splitter

All that is needed to connect a second TV, except for the device itself, is mounting brackets (if the cable will be attached to the wall), a sharp knife, an ordinary tape measure and antenna plugs (according to the number of additional TVs). First, select the place in the apartment where the antenna splitter will be placed. It is best to use for this special sockets mounted on the wall of the room. Then we measure the number of meters from this point to each of the two televisions, summarize, add a couple of meters to the stock and buy the desired length.Now it needs to be cut into the required pieces, from the ends of which the outer shell is removed with a knife, and the braid is bent outward into the uncleaned part.

After that, instead of the plug, which is located at the end of the old one, a splitter for the antenna is connected, and pre-prepared pieces of cables for all television receivers are connected to it. Then all these wires are fixed motionless using brackets or cable channel skirting. The last thing left to do is turn on all the devices and check the quality of the received signal.

Television is a popular way to quickly get relevant information and escape from routine. Televisions are in every home, providing interesting leisure for every member of the family. In some apartments there are even several of them installed to meet individual preferences, which necessitates the purchase of an antenna splitter. Both terrestrial and cable broadcasting is carried out through a special coaxial cable. It must be connected to several devices at once to ensure high-quality and simultaneous signal transmission.

Antenna splitter: definition, varieties and purpose

The antenna splitter is a passive device that allows you to solve the problem of wiring cables to multiple TVs. There are three main types of splitters:

1. splitters or dividers;
2. adders (diplexers);
3. taps or tapas.

Splitters

Splitters are splitters that allow you to split a television signal into multiple outputs. With a TV signal power of 12 dB, a TV splitter of this design divides it by the number of connected devices (with 2 connected outputs - 6 dB each, with 3 - 4 dB, etc.). TV splitters are optimal for connecting two or three TVs at the same time. With a larger number of TVs, it is more advisable to purchase an active type splitter, additionally equipped with an amplifier.

Diplexers

Diplexer - a type of antenna splitter that is designed to combine signals of different ranges (usually satellite and conventional television antennas). Built-in filters minimize interference with signal transmission. The probability of losing the power of the television signal is also leveled. Diplexers also work on the opposite principle, allowing you to disconnect the received television signals by connecting cable or terrestrial broadcasting to several TVs.

Antenna tapas

Taps are used to distribute the signal to subscribers in the house wiring. The design of the product is characterized by the presence of several inputs, the number of which is equal to the number of connected TVs and antennas. The advantages of this type of television signal distributor are wide working range (from 5 to 1000 MHz) and normalized attenuation coefficient (from -6 to -28 dB), which allows you to equalize the signal level in the created network.

How to choose an antenna splitter

Before purchasing an antenna splitter, you should determine the type of signal. For digital and satellite broadcasting, the transmission frequency is different (1 GHz and 2.5 GHz, respectively). In addition, the satellite splitter must be equipped with a special PowerPass amplifier that transfers power to the antenna head. If the digital splitter cannot transmit the signal to satellite receivers, then the device with an increased broadcast frequency can be configured for analog or digital television.

How to connect multiple TVs to one antenna

High-quality signal transmission also depends on the correct connection of the antenna cable to the splitter. To complete the task, you can call specialists who will quickly connect a splitter and provide a high level of broadcasting on several TVs. But, provided that they have minimal skills in assembling radio equipment, the problem of signal branching can be solved independently, observing the stages of the work.

Cable preparation and connection to the splitter

Before starting work, it is important to disconnect all devices from the power supply to prevent the likelihood of personal injury. To connect a coaxial cable to the connector of a splitter or diplexer, perform the following steps:

• accurate removal of the top layer of insulation (the braid must be kept intact);
• removal of internal insulation by about 1 cm of cable length;
• installation of a connector (F-connector) over the braid (wiring should not touch the central core due to the risk of short circuit);
• crimping the cable with a sleeve and fixing with a nut;
• connecting the design to the output of the splitter.

To connect the TVs to the antenna signal, you must provide a sufficient length of the coaxial cable equal to the distance to the connected device. It is recommended to hide the cord under the baseboard or drill a hole in an adjacent wall to reduce wire consumption. The last stage of work is checking the signal quality. If the picture or sound is distorted, it is worth checking the quality of the connection of the cable with the diplexer or redoing the crimp. With the prospect of connecting additional TV devices to the splitter, you need to purchase an analog with an increased number of connectors. On free slots, ballast resistors with a resistance of 75 ohms are installed.

Installing a TV signal splitter eliminates the need to purchase several antennas for each TV, which ultimately saves money in your family budget. The right choice of a suitable device and compliance with key recommendations for connecting a cable to a diplexer is the key to high-quality broadcasting of a video signal even in a very remote area.

Each room in a modern apartment often has a TV. The signal comes from a single source, which is an antenna, conventional or satellite. After the impulse has reached the premises, it is divided into several branches. This allows you to watch television programs in good quality in each of the rooms. Splitters, splitters, crabs - a product in constant demand. The signal divider is used wherever there is a TV.

TV signal divider

When choosing a TV signal splitter, you need to know the following:

• Let the number of outputs of the purchased splitter be greater than the number of televisions available.
• In the menu of new TVs, the frequencies of the received channels are indicated. Determine the maximum frequency indicator. We select a crab with the upper limit of the range greater than the indicator of the frequency of the TV.
• The splitter housing usually contains the decay parameter specified in decibels. When choosing a splitter, select the lowest value.
• The best way to connect the cable is through the F6 connector.
• The splitter must be securely locked. Free sagging of the device is unacceptable.

Types of signal dividers

Consumers are invited to choose splitters under the F connector for 2, 3, 4, 6, 8 outputs, for satellite and general television systems. High-quality splitters are equipped with a solid metal case. You need to choose a trusted manufacturer whose product is accompanied by a quality certificate.

Good quality dividers have red arrows on the case. They indicate the path of the direction of the current that passes through the splitters. There are dividers of uneven division, however, specialized models are rare.

The splitters are marked with power division:

• Division by 2, eq. 3.5 dB
• Division by 3, eq. 5.3 dB
• Division by 4 - eq. 7.3 dB

Low prices for TV signal dividers

In the online store Electro-NIC you can buy a high-quality TV signal divider. On the pages of the store, buyers are offered many modifications of splitters, other components.

Qualified consultants will be pleased to introduce a range of products. Additionally, they will offer several options. On-line you can familiarize yourself with the conditions of purchase, sale. To purchase goods, it is enough to fill out an easy to understand order form on the website.

For many families, it has become customary to have several televisions in the apartment. Distribute the signal received from the television antenna to several televisions allows a device called a splitter of the television cable.

With it, you can watch several programs at the same time, while the signal quality remains at the proper level. Before you buy such a device, we recommend that you familiarize yourself with the information in this article.

There are several types of devices, each of which is responsible for the specific capabilities of the splitters.

Depending on the tasks, the following are used:

• splitter
• diplexer;
• coupler.

You should familiarize yourself with each of them in more detail.
A splitter, it is a TV signal divider between several devices. By the way, people call him television crab . Depending on the number of connectors, the splitter divides into 2, 3 and 4 TVs.

In the latter case, an amplifier is required, otherwise the signal will be weak.
Diplexer has another more understandable name - adder. In other words, the splitter combines several signals from different antennas and produces one more powerful one.

It can be used in a home with satellite TV and a conventional television antenna. Also used to combine frequencies from different ranges.

Modern splitters in most cases are universal and can operate as an adder or divider.
The tv coupler is used in apartment buildings. Part of the signal from the common antenna goes to one of the apartments, and the other goes further through the coupler.

One of its varieties is a blocker. It is used to limit paid channels.

How much do we connect TV

In any specialized store, the sales assistant will select a good antenna splitter for 2 devices.

A good signal level on 3 TVs will give a divider or adder from well-known brands, so you should not save on it.

In order to achieve good image quality for a splitter for 4 TVs or more, an amplifier (active splitter) is needed.

Depending on the number of monitors connected, the minimum required power changes.

How to choose a TV signal divider for 2 TVs

When choosing equipment, you first need to find out at what frequencies television channels are broadcast. You can get this information using a TV with the function of determining frequencies or an apparatus that picks up signals of various ranges.

Also, it is necessary to take into account the number of connected TVs and the diameter of the cross section of the antenna cable.

One important parameter is attenuation, which is expressed in decibels. You can find its value on the case. The less its value, the better it will affect the quality when watching television programs.

Preference should be given to devices in the design of which mounting holes are provided. A device that hangs on just one cable betrays a TV signal worse than fixed on a wall.

If the apartment has cable wiring and a box, use a compact size splitter.
Depending on the type of cable, you should buy a splitter with a threaded connection or screw clamps. There are devices in stores designed to connect them to the cable by soldering.

They transmit a television signal better, but require special skills.

How to connect a TV divider to a TV

You need to calculate how long the cable will need. It is recommended to take the distance with a margin. Measurement should be taken from the place where the central wire ends.
If you need to combine the signals from several antennas, you must connect the antenna cables to the television adders. Then, through the adapter, you need to install the divider.

If there is only one antenna, then only the last device is used.

Installing a television crab

In the places where the cables and the branching apparatus are connected, fixing is carried out by special nuts, which are included with the divider or adder.
Plug the connectors onto the other ends of the cables. To do this, each wire must be stripped from insulation, so that the central wire of the cable protrudes from it.

Then it can be connected to the TV. Turning it on, you should search for channels and check the quality of the received sound and image for noise.

If the condition is satisfactory or poor, then you need to install an amplifier. In the age of digital technology, the question is how to connect TVs to a computer or other device.

This will allow you to view photos, videos, pages of sites on a large television screen. Walking past the shelves with monitors in a computer store, you will notice that all of them play the same video or image.

For this purpose, an HDMI splitter is used.
Let's figure out how to connect an active hdmi signal splitter to 2 TVs.

This will require a device with two outputs (OUT). If you need to connect a larger number of monitors, you should purchase an HDMI splitter for 4, 8 or 16 outputs (OUT).

Connection is quite simple. From a computer or laptop, the HDMI cable must be connected to the input (IN), and the cables from the monitors should be connected to the outputs (OUT).

DIY antenna splitter

Everyone can make a splitter independently. But before you start development, it is important to know that such a device is applicable for an analog television antenna.

For a digital TV, such a divider or adder cannot be done.

Cheap Chinese devices have large losses in transmission quality, so it would be reasonable to modify them. To do this, you need a cable and a ferrite ring.

You can assemble the antenna splitter in a small metal box, while paying attention to the location of each connector.

In addition, the poor connection of the plug to the socket can affect the quality of the transmitted signal from a homemade splitter. Also, you should pay attention to cable resistance.

It will not be superfluous to make the grounding of a homemade device and cable insulation.

How to amplify a signal

For a TV with poor picture and sound, using an amplifier is a great solution. Thanks to him, it is possible to significantly improve the quality of the transmitted image and sound.

It must be installed in close proximity to a splitter or antenna. When buying an amplifier, you should pay attention to the gain values \u200b\u200bin dB, an acceptable level of noise, signal attenuation, and the presence of a power supply.

Depending on the required ranges, different types of amplifiers are used. Not every frequency can be qualitatively caught with the help of one or another amplifier.
The device connection diagram also affects the signal.

The following schemes are used:

• with an amplifier in front of the splitter;
• with several at each entrance;
• combination.

Antenna amplifiers are meter and decimeter. For a specific situation, a certain model is suitable. Therefore, before buying it is recommended to consult with the seller or repair technician for television equipment.

The latter has the necessary equipment with which you can accurately determine what the power of the antenna, divider or adder should be.
In modern society, when most apartments have several televisions, you can not do without a splitter. Everyone can independently connect the device, but before that it is recommended to consult a specialist.

When buying a splitter, you need to be careful and study its characteristics.