Secure Vision 2G +3G +4G Mobile Signal Booster , TM, GSM, DCS, 900+1800+2100 Router Antenna Booster

A mobile phone signal repeater provides the ultimate solution in any area where Cellular communications can not work well due to leak of signals,the repeater Device features easy installation & operation ,build-in indoor antenna and no Interferece,it could also improve indoor electromagnetism environments. Protract cellular battery life and reduce radiation of cellphones. A mobile phone repeater is ideal for house ,home,office use. A Cell Phone Signal Booster for your home works by having the external antenna mounted outside, typically on the roof, and that receives the existing outside signal from the nearest cell tower. The antenna passes that signal inside the house to the signal amplifier via a cable. The amplifier receives the signal and boosts it significantly, and then passes it to the indoor antenna via another cable. The indoor antenna broadcasts the boosted signal to part or all of the inside of the home. The system also works in reverse by boosting the signal that originates from a mobile device inside of the home out to the carrier's cell tower. While that might seem somewhat complicated, the design of the signal booster system actually does a lot to solve the problems that cause poor signal to begin with. The high powered antenna on the roof allows the system to receive the best possible signal in the area. If the signal is very weak due to distance or obstructions, then a high powered directional antenna can be used to make sure that the signal is received. If the signal is fluctuating due to signal bouncing off of the terrain or large obstructions, then a powerful omnidirectional antenna will allow the system to receive the signal, irrespective of the direction that it's coming in at. By using a cable to bring the signal into the house from the outside antenna, the system is bypassing the construction materials of the home that typically block the signal from entering. Finally, by using a signal amplifier in the middle of the system, the signal that is passing through the system can be made much more powerful and distributed throughout the inside of the house, as well as out to the nearby cell towers.