How does a GSM repeater work?

How does a GSM repeater work?


1. How does a GSM repeater work?

Each of our mobile signal repeaters comes with an outdoor antenna, an indoor antenna and a 10 meter coaxial cable. The outdoor antenna is mounted where the signal is (reasonably) good, for example, on the roof, facade or chimney. It is connected by a coaxial cable, the signal is routed to the repeater, which will act as a network amplifier to enhance your indoor signal. The indoor antenna then transmits the signal indoors. In this way, the mobile phone signal can be received from the outside to the inside.


2.What are the diffent accessories?

The outdoor antenna will receive the signal from the telephone operators from the transmission tower. There are several models. The one you need in each case depends, among other things, on the distance between you and the transmission tower, but also on the quality of the signal received outside. 

The signal is carried to the mobile signal repeater using a coaxial cable.

So it is very simple, the indoor whip antenna connects directly to the mobile signal repeater and sends the signal inside. There are also several models of indoor antennas. If you want to have the possibility of having an indoor cable antenna to give you more freedom in positioning the repeater (which must be 10M from the outdoor antenna) you will have to buy an antenna extension so that you have the option between several models of indoor antennas and an additional coaxial cable.


3. Is it possible to extend the coverage in several rooms?

!Sure! If the mobile signal repeater needs to amplify multiple floors or rooms, multiple indoor antennas can be connected to one GSM repeater. The more powerful a GSM repeater, the greater the possibility of connecting several indoor antennas. In this way, a more homogeneous signal is obtained on each floor.

An overview of the maximum number of indoor antennas our repeaters can support:

GSM repeater whose reference contains a 10 (300 m2) - max. 1 indoor antenna

GSM repeater whose reference contains a 13 (600 m2) - max. 2 indoor antennas

GSM repeater whose reference contains a 15 (900 m2) - max. 3 indoor antennas

GSM repeater whose reference contains a 17 (1200 m2) - max. 4 indoor antennas

GSM repeater whose reference contains a 20 (1500 m2) - max. 6 indoor antennas

GSM repeater whose reference contains a 23 (2000 m2) - max. 8 indoor antennas


The telecommunication signal is always transmitted from the external antenna to the network amplifier through a coaxial cable. Multiple indoor antennas can be installed using a splitter; the connection will also be made by coaxial cable. Extension kits are available for two, three, or four indoor antennas. Everything is included: the splitter, the coaxial cable and the indoor antennas.

Extension kits are available with different indoor antennas and different lengths of coaxial cable./p>

Whether it's a 500 m² country house with concrete walls, a 4,000 m² underground car park or multi-storey offices, GSM REPEATER SHOP offers a solution tailored to your situation. Do not hesitate to contact us.


4. How to choose the right mobile signal repeater and its strength

The larger the area, the higher the power of the mobile signal repeater should be. However, you should always be careful not to put too much power into a very small area, as it can cause interference. The table in the next section will quickly advise you on the repeater that suits your needs. 

Small offices or apartments often need a less powerful mobile signal repeater and a maximum of one or two indoor antennas, while open space offices tend to need more powerful mobile signal repeaters and more indoor antennas if reception is strong. deficient. bad. It is important to note that indoor antennas do not work on different plants. 

You can find more information on this in this table.

If you have any questions, our team will also be happy to help you, you can contact us by email, chat or phone directly.