In life of almost each owner of the mobile phone of the GSM standard there is a situation when it is necessary to strengthen a signal of cellular network. In an area of coverage of the base station of any telecom operator there are places where the signal weak or absolutely vanishes. These are "dead" zones. They can arise and indoors, and on the open area, but there are ways to strengthen a communication signal.
Instruction
1. Indoors the concrete walls and overlappings preventing passing of a radio signal can serve as the cause of "dead" zones. Especially it is relevant for basements. Installation of the special amplifier of a cellular signal or repeater can help in this case.
2. The distance between the external and internal antenna has to be not less than 20 m. Use of repeaters is especially relevant for country houses and rural areas.
3. On a roof of the building install the external antenna (the small device, is on sale in shop). Direct it to the next and least loaded base station of mobile operator.
4. The external antenna is connected by a cable to the amplifier of a cellular signal. The accepted and strengthened signal of network arrives on the GSM device, the modem or the mobile phone. If room space big, it is possible to install several internal antennas and a divider of power. Such antennas usually fasten on a ceiling.
5. The repeater represents the antenna amplifier of a cellular signal. Complete with it there are an external antenna, one or several internal antennas and a divider of power. All this equipment a coaxial cable connects.
6. If there is a need to provide with a signal several houses or the room more than 10,000 sq.m, installation of a repeater of the increased power is necessary, and in certain cases it is necessary to use the booster – the device for strengthening of operation of the main mechanism, in this case a repeater.
7. Amplifiers of a signal of cellular network are absolutely harmless to human health. Power of their radiation is five times less than the power of the ordinary mobile phone.