📡 amplifier cellular signal: how to choose and install

Every day means of communication become more and more perfect, and we are increasingly dependent on them. For many, the loss of signal - a disaster. After all there - and communication, and business, and security. And the more our gadgets from the tower operator, the more problems with the signal quality, and in the endless search for mobile network devices quickly sit down batteries. for owners suburban areas and residents of remote settlements there is a way out of this situation: the amplifier cellular signal. About him, and we will now be discussed in HouseShief review.

Where applicable Amplifiers

Note: because the signal amplifier and amplifier is called, it increases the capacity of existing pulse. If there is no signal at all, and strengthen nothing. So do not expect a miracle in places where no one gets cellular communication in principle. But if it is, but a weak and unstable - it is possible to correct the situation by using a repeater.

How to construct and operate amplifiers

The repeater consists of two antennas, internal and external, of the relay device and the unit providing the power.

signal catches external antenna. She passes it to the repeater, and he, in turn, an internal antenna. Mobile phone picks up the amplified signal from the interior antenna. This ensures stable connection.

There is a small nuance, which should be paid attention to: the repeater is a device that can provide signal a large number of mobile devices, but simply referred to as a signal amplifier unit, working one to three mobile phone.

Kinds of devices for power amplifying a communication signal

Amplifiers are classified by communication standard: 3G (21 MHz) or GSM (850-1900 MHz).

In addition to these parameters, the modules can differ in power and the signal relayed by a principle of installation.

Characteristics amplifier antennas

The repeater two antennas: outdoor and bedroom. What should I look for when choosing them?

Rain, wind, snow - all this, one way or another, will have an impact on it. It is therefore preferable to use resistant to corrosion processes aluminum model, which in addition is covered with a special protective layer.

Internal antennas to choose a little more complicated. Incidentally, there may be several - in different areas of the house. So they do not catch the eye, internal antenna can be masked surfacing materials. For uniform distribution of the signal in this setup using power splitters.

Features repeater

In addition to the correct selection of antennas, and most importantly the quality of the filling relay. On which indicators to look for when selecting a product:

1. Gain. Experts advise not to acquire the device with ratios below 65 dB. To improve indoor signal using devices with the readings of up to 75 dB, and if the link is weak and outside the house, then up to 90 dB.
2. output power. Pick it should be in accordance with the area in which you need to improve the signal. To 200 m² required power of 100 mW. If you need to cover all the 8 acres - require a minimum power of 320 mW.
3. frequency band. cellular towers broadcast the signal in two ranges: 1800 and 900 MHz. The first channel provides a large number of communications subscribers, the second - transmits the signal as far as possible. For this reason, rural operators prefer to install equipment designed for the broadcast signal of 900 MHz.

How is the signal amplifier

On sale there are many models that have different types of adjustments. The most primitive are sold to the Chinese networking sites. Many of these devices do not have any settings, except for the base. It must be admitted that the use of them is extremely small. A more or less quality items have a manual or automatic adjustment. Read more about it in this small video material:

If you have a similar type of setting seems very complicated, give preference to the device with auto-tuning.

By what criteria should be selected repeater

Selection of the amplifier - is not easy. And one must not only pay attention to the characteristics listed repeater, but also on many other nuances.

Tip! The value can be even connecting the antenna cable. Best shows itself coaxial cable 50 Ohm. Do not use conventional TV cables.

As the distance from the signal source

Learn distance are two possible ways: to call the hot line or find the operator in Internet card that contains the marks.

If the source broadcast is within 10 kilometers from your home, do not waste money, buy better connection from another operator, who can offer you a more successful relationship.

The peculiarities of the house

Area garden and wall material also have implications for the choice of amplifier. If you have a house, even with two rooms and a porch of brick or blocksIt needs power capacity of at least 20 mW.

By the number of connected mobile devices

Good repeater from cheap fakes are distinguished precisely that number of connected devices is not limited. All models are designed for 2-4 cell gadget should not be considered due to their low power and inefficiency.

How to install cellular amplifier

Each amplifier is equipped with a set of detailed installation instructions. The hardest part of this process - assembly works with an external antenna on roof. It must be oriented so as to obtain the highest quality signal. It turns out not all and not immediately.

Partially relieve the problem of the signal strength indicator, which have high-quality models. It is necessary to monitor and to ensure that this indicator does not go into the red zone, otherwise the relay will overexcited, and this is bad for the reception of the signal and can lead to trouble with the supervisory services.

Note! Most repeaters operate well only within a temperature range of from -10 ° C to + 40 ° C. This applies not only to the external antenna, but the indoor unit. It can not be put in the battery or the oven.

When installing the power supply should be connected through a line filter, it will save up device from surge online.

If you're already using similar repeaters, and can suggest some effective model, share your impressions in the comments!