Network repeater. What is a Wi-Fi repeater

Wireless technologies inevitably conquer the world. More recently, we have admired Bluetooth devices.

They talked about computer networks based on them, and today they look hopelessly outdated against the background of the development of Wi-Fi networks, which, having adopted the frequency range 2.4 GHz at the beginning of the "blue-tooth" standard, are now gradually switching to their own 5 GHz.

In this regard, many new words have appeared: Wi-Fi routers, routers or even routers, expanders or extenders, access points, repeaters or repeaters ... Let's talk about one of them.

What is a Wi-Fi repeater

The passport range of Wi-Fi communication devices, claimed by their manufacturers, is usually 300 m in the open area and 50 m in the room. The first of these values ​​can still be somehow trusted. It is measured by sensitive instruments under pure experimental conditions and shows only natural attenuation of the signal at 2.4 GHz, without taking into account the characteristics of receiving devices, the presence of interference and natural obstructions.


Among the merits I can note the compact size of the device, neat assembly (nothing creaks, does not lyuftit and does not exfoliate), light weight, and also an excellent battery (holds really long). The signal of the MR150-2 is just superb! Disadvantages? No, I did not notice them. I took a router for trips around the city, but even when traveling outside it keeps everything just fine (including 4G). Within the apartment, my tablet works smoothly through several partitions, and the cold start of the device goes literally in a couple of seconds (and maybe even less). After using this router, only a few weeks of emotion left only positive ones.

A wonderful antenna! Earlier I tried to set up a stable signal using USB extension cables, small amplifiers and other things. But I just live far away from the city and my operator here did not really take care of the coverage. This thing has solved absolutely everything! In addition to the fact that I was able to carry it to the roof, I even managed to weld the pipe, fix it and raise the antenna even higher. This helped to get a very good coverage without crashing.

Alexander Sergeevich

Due to the duty of duty very often have to travel, and then the Internet must be at hand anywhere in the city and in transport. I already liked this router for a long time, but traveled half of the city and at least somewhere it was. Lucky to order here. About the device only positive emotions! Works well in all possible networks, data transfer speed, it is possible to insert a memory card. Also a plus is that you can connect several users, which is actual for me for conferences, and a socket for the antenna (well, I already use it at home).

The device works perfectly! The truth at once I speak, that for 4G it will be necessary to translate in this mode, and that does not see. To the store, too, there are no complaints: the prices are affordable, the delivery is very fast!

Dmitry Ivanovich

From the modem only positive emotions. Immediately made friends with the Mac 2013 (before that, many devices refused to work with him). Faced the problem that the router did not see the modem, but it all happened when I chose the "modem only" mode. All other pieces (such as a slot for memory cards and stuff) should be turned off. In general, the thing is very good and inexpensive, I recommend!

Previously, I took an ordinary (unmounted) modem of the same model. The problem was that I did not find any firmware on either Russian or foreign websites, so I could not replace the custom backup file with the factory IMEI. Recommendations for the MF910 on this, too, did not work, so threw a similar case. I took it here at once unlocked and do not regret it! The price in the store is low, and the modem works like a clock.

Maxim Mikhailovich

The router was bought for installation in a computer class at our school. It works very well, any SIM card sees just fine! Initially, the speed is very good, but you can increase it if you use an external antenna (the socket, fortunately, is).

Yaroslav Leonidovich

I bought a router at this store a couple of months ago. Initially, I liked the work of managers, formalized everything quickly and promptly delivered. Now I can talk more about the device. I worked with the "Megaphone" card and was very surprised by the speed, which reached 30 Mbit. And this is all when internal antenna, but in fact you can connect it to the external one! The truth has not figured out how to connect via telnet, but the friend promised to help.

Veniamin Alekseev

The signal from the router was constantly missing. As soon as I put something to load on work or communicate with a colleague on Skype, so here the connection simply disappears. They advised me to take a repeater, which I did. It worked perfectly! To sellers separately I express gratitude for the help in selection of a suitable variant.

I bought an amplifier for my parents in the village, so that I could share it for two with my neighbor on the plot. The cost of the device here, of course, is low, then the neighbor wanted to be cheaper. But the main thing is that everything works fine! Previously, poorly working Yota began to receive the signal simply flawlessly.

Alexey Pavlovich

It was necessary in the office to provide good wireless coverage when working with multiple computers. Just so the signal router catches very badly, therefore on 5-7 PCs, which usually need to be combined in one network, there was not enough connection. The antenna solved any problems, everything is enough with a surplus. The second time they also took it in order to unite two new offices through a cellular network, there were no problems either.

I do not always catch LTE at a dacha outside the city, so I needed something quite versatile and well-working. I looked through a lot of forums, read a lot of reviews and this antenna seemed to me the best, so I ordered it. Delivered everything quickly, without any problems, the courier was polite. The device works perfectly, I can not even complain about the quality of the connection.

Great thing! You do not need to buy anything extra, just put in a SIM card (works with any) and can be used. For such a price gives an excellent quality of communication!

Alla Igorevna

Advantages of the product: sufficient frequency range, good adjustment, which makes it possible to obtain very good signal, quality reception, robust construction. As it seems to me, this is all that you can desire from an antenna, and even more so if it is offered for such a price.

Wi-Fi repeaters (repeaters, repeaters) allow expanding the coverage area wireless network, and in some cases even create additional points wi-Fi access. If your home is too big for your router, then, before you decide on the choice of Wi-Fi repeaters, you need to think about a few points. For example, if you just want to increase power, it may be better to simply install an additional router in weak coverage areas or add an Ethernet cable. Of course, in this case, you do not need to spend more than $ 100 on a Wi-Fi repeater, because for the same price you can purchase the necessary additional cable or an additional router.

Finally, we advise you to refrain from choosing a single-band repeater. Since the repeater absorbs the lion's share of the bandwidth of your router, you must be sure that the repeater works as efficiently as possible. Single-band repeaters connect to your router and translate their signals on the same range, and thus worsen performance. On the other hand, dual-band repeaters establish a connection with the router at a single frequency, and broadcast the signal on the second. Considering all of the above, let's look at the best Wi-Fi repeaters that meet these criteria.

1.

If you are looking for a good Wi-Fi repeater, then NETGEAR EX6200  - this is the best option for most cases. It is a powerful universal and affordable dual-band repeater. The NETGEAR EX6200 repeater supports the most new version  standard Wireless-AC and can create a second Wi-Fi access point. What's important is that the Wi-Fi repeater has two ranges for signal transmission (the advantages of buying such a repeater are described in the beginning of the review), which means that it broadcasts the signal at 2.4GHz and 5GHz frequencies. The EX6200 repeater simultaneously uses two bands at speeds up to 1200Mbps. Also, the NETGEAR EX6200 has as many as five Gigabit Ethernet ports that run at much higher speeds than Fast Ethernet ports. This allows the Wi-Fi repeater to function as a wired access point, and fast enough. Also, the repeater is equipped with a dual-core processor that provides optimal operation of the device, as well as powerful amplifiers and two antennas with a high gain of 5 dBi. The price of such a repeater is only $ 95.

All these characteristics allow extending the coverage area of ​​the wireless network by several hundred square feet. how ordinary users, and professional tests confirm these statements. And this means that the NETGEAR EX6200 is one of the best Wi-Fi repeaters available on the market.

2.


If you are willing to pay a little more money for a little more coverage expansion, as well as several additional security features, a Wi-Fi repeater Linksys RE6500  Is the choice for you. Most users complain about the complicated process of installing the repeater, but if you have the ability to configure the network and you are not afraid of a headache, the Linksys RE6500 will thank you with impressive power. Thanks to its compatibility with Wireless-AC and speeds up to 1200Mbps, the Linksys RE6500 Wi-Fi repeater can extend the network coverage to 10,000 square feet (at least, so says Linksys). The device has 4 Gigabit Ethernet ports, which allows it to be used as a wired access point.

A unique feature of the repeater is the presence of an audio connector mini-jack. It allows you to connect a stereo system or speakers, and play music from your computer or phone over the wireless network. Linksys RE6500 is great for office or small enterprise, it is characterized by 128-bit encryption, and offers the function WPS (this is a technology that greatly simplifies the process of setting up wireless wi-Fi networks  and allows you to easily, quickly and safely connect devices)

In general, the price of the Linksys RE6500 is slightly higher ($ 110) than it could be spent on a decent Wi-Fi repeater. But if you manage to find an option for less than $ 100, this model will be worthy of competition with another repeater from our review. The main thing - be patient with the somewhat complicated installation of the device.

3.


Dual-band Wi-Fi Repeater D-Link DAP-1520  with a price tag of only $ 50, connects to any outlet and is able to increase the coverage area of ​​the wireless network at the touch of a button. This model is characterized by the availability of Wireless-AC technology and speeds of up to 750Mbps (300Mbps at 2.4GHz and 433Mbps at 5GHz). You can save and restore the repeater settings. This device is ideally suited for frequent power outages or reset to factory settings. Also you have the ability to track the traffic of your network. The repeater is small in size, budget and, according to most reviews, it offers an incredibly powerful wireless signal for such a device.

However, the device is small and inexpensive for certain reasons. To create a Wi-Fi repeater of such small size, the developers had to sacrifice some features that some would find vital. So, in the model D-Link DAP-1520 there are no such ports as Ethernet, USB or audio input. Therefore, the repeater does not provide significant functionality.

This is a good and affordable device for the usual expansion of the coverage area of ​​the Wi-Fi network. The repeater is perfect for people with limited knowledge in the technology world. Such a device is hardly suitable for a network guru who wants to equip a hall for holding press conferences or hold a party in his huge country cottage. We advise you to purchase the DAP-1520 if you need a simple Wi-Fi repeater without any bloat and frills.

4.


NETGEAR EX3700  This is another low-budget Wi-Fi repeater that plugs into a standard outlet. Dual-band device with support for Wireless-AC technology (its latest version) transmits data at speeds up to 750Mbps.

The EX3700 repeater has two additional antennas to extend the coverage area of ​​Wi-Fi, and provides the ability to create a new Wi-Fi access point or a wired connection through the Gigabit Ethernet port.

This repeater is great if you want to create a separate network for guests. The NETGEAR EX3700 has Wi-Fi Analytics installed, which allows you to measure signal strength, check status, or detect overloaded channels.

Some may think that these opportunities are superfluous and impractical, but the main point is that they are provided by a budget device. Therefore, we can conclude that the NETGEAR EX3700 repeater is better than the competing D-Link DAP-1520 model. Do not doubt the purchase of NETGEAR EX3700, if you want to get more functionality at a budget price.

To enhance the signal of the router, special devices are used, which are called repeaters. By their design, these elements are quite similar, but there are differences. First of all it is important to determine the main indicators of repeaters. If we talk about receivers, then they should take into account the limiting frequency.

Additionally, the throughput of the device is estimated. Also, the main parameters of the instruments include tracking accuracy and sensitivity. A router as a WiFi relay can be used. Collect it at home is quite difficult, but it is possible. In this case, it is better to use for the details some faulty router. Thus, in the future we will avoid many problems.

Simple repeater circuit

The repeater circuit implies the use of different receiver frequencies. Also, any model includes a low-power processor, which is designed for a certain number of channels. Thus, repeaters are capable of supporting various formats. To transfer the signal over a distance, resistors and capacitors are used. With interference in the circuit, the user will be able to cope with various filters. They are usually installed as a mesh type. However, in this case, much depends on the maximum frequency of the repeater.


Highly sensitive models

It's quite easy to make a highly sensitive WiFi repeater with your own hands. To do this, it is important to select the receiver only at 20 Hz. The processor is installed last. Ports for the chip must be purchased separately. To do this, you must first install all the resistors. They are selected for this purpose analog type. The antenna for the repeater is best taken from the router. Condensers for this device will be of a variable type. Their throughput is pretty good. The processor at the end of the work should be mounted near the condenser. Thus, the quality of signal transmission will increase.

Devices with WEP standard

In order to understand how to make a WiFi repeater with a WEP standard, you need to familiarize yourself with the principle of multi-channel processors. Resistors are important to choose only electromagnetic. Maximum negative resistance they should be able to withstand at a level of 5 ohms. In order to increase the bandwidth parameter, many experts advise capacitors to choose super-power. The minimum capacity is 4 pF. Filters in this case are installed last. Ports on the chip are soldered at the output. In this case, the resistors in the WiFi repeater need to be placed in pairs to improve the signal.


IEE Standard Models

WiFi repeater of this type for today is quite demanded. This is due to the fact that the sensitivity is good, while the coverage area is extensive. Create this type of device at home is difficult. However, the old router can greatly simplify the task. Firstly, it is installed in the housing of the microcircuit. There must be three resistors on it.

They have to withstand a negative resistance of at least 7 ohms. All this will increase the sensitivity of the device to the desired level. To solve the problem with sampling, many experts advise capacitors in the store to select only two-bit ones. They are quite expensive, but they have good compatibility with the processor. It is advisable to install the absorption filters at the output in the circuit. All this will significantly increase the bandwidth of the signal.

How to make an SSID relay?

Going WiFi-amplifier-repeater of this type from the processor on two channels. Additionally, please note that the receiver for this device is quite powerful. The minimum parameter of its limiting frequency is 20 Hz. In this case, the bandwidth can be controlled via transistors. They are selected, as a rule, emitter type. However, many specialists prefer integrated analogues. The negative resistance they are able to withstand at 4 ohms.

In this case, the modulation process is quite fast. Condensers for the device must be selected based on the sensitivity parameter of the device. If this indicator exceeds 60 dBm, then it is important to use only the closed type. In this case, the capacitance of capacitors must be at least 3 pF. Ports can be used as standard from an outdated router. In order to understand how to configure the WiFi repeater, just go to the control panel of the router.

Devices with transmitter РР20

This transmitter is capable of boasting a maximum frequency of 23 Hz. Approaches to it the processor on two channels. In this case, the capacitors can be selected any. To increase the throughput of the device, many experts recommend using analog resistors. The negative resistance they must maintain at 4 ohms. Due to this, the quality of data transmission will be quite good.

Using the PP35 transmitter

A transmitter of this type is often used for repeaters. This is due to the fact that the parameter of the limiting frequency of it is at the level of only 18 Hz. All this suggests that the device may have some problems with data modulation during operation. Ultimately, the signal will not be transmitted over a long distance, and the data sending speed will be significantly reduced. To solve this problem, many experts are involved in the installation of zener diodes. Using these devices, the sensitivity level can be stabilized.


How to make a repeater high frequency?

High-frequency WiFi-repeater supports most formats, and today it is quite in demand. The receiver for this purpose is selected for at least 30 Hz. Thus the processor for the device is necessary on four channels. All this allows to stabilize the modulation process. Condensers for the repeater are important to select with a capacity of at least 5 pF. Resistors in this case can be used different.

In some cases, filters are best used in a grid type. However, multilayer analogs have also recently shown themselves on the positive side, and this need not be forgotten. The parameter of negative resistance in the circuit must oscillate around 4 ohms. Ports for the device can be purchased in the store or removed from the router.


Model at 11 Mbps

Folding a wireless WiFi repeater with this bandwidth at home is possible if you find a receiver with a frequency of not less than 22 Hz. Condensers for the device are suitable only for capacitive type. The minimum resistance of the device must be at a level of 3 ohms. In some cases, experts additionally use generators.

In this situation, they make it possible to strengthen the communication distances of the device. Processors for such purposes need multi-channel, with the support of the main formats. Chips are selected only with a binary bus. The sensitivity of the repeater ultimately depends on the resistors used. Install them in two rows on the board is not recommended.


54 Mbps devices per second

The repeater of the WiFi signal with the specified capacity is folded only on the basis of the multichannel processor. Generators in this case are used quite rarely. Reduce fluctuations in the circuit can be due to network filters. Condensers for the device are usually used electrostatically. The average capacity is 6 pF. Due to this, the modulation process passes fairly quickly.

Devices at 150 Mbps

Repeater WiFi-signal with the specified bandwidth is a real rarity. It can be combined on the basis of a multichannel processor. In this case it is important to select a low-frequency receiver. The resistance in the circuit must be at the level of 5 ohms. To stabilize the data transfer process, many specialists use only capacitive capacitors. They are installed on both sides of the receiver.

With sensitivity, this device will definitely have problems. It is connected with the fact that multichannel processors are not able to smooth out fluctuations. All this ultimately leads to a long process of modulation. Solve this problem only with the help of a generator. Also, many experts install dampers. With them, the sensitivity of the device is greatly increased. However, for this purpose, filters should be selected as positional type. Also they can be borrowed from a broken router.


Model with a sensitivity of 68 dBm

Achieving sensitivity of this level can be quite simple. To do this, the receiver is installed in the WiFi repeater with a limiting frequency of 21 Hz. In turn, the processor is needed for two channels. Next you need to be fit capacitors. Their capacity at the input is at least 2 pF. For the output, the capacitors are taken only at 4 pF.

The smoothing process in this case is provided by gradually increasing the level of the limiting frequency. In addition, it should be noted that the resistors for the chip are required four. At the entrance, they are required to withstand a negative resistance of 5 ohms. At the output, this figure can reach up to 9 ohms. Filters for such devices are used quite often.

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