G990 big power signal repeater 900mhz signal amplifier silver home signal booster with wholesale price

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 interference.  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.

The repeater makes the signal stronger in places with poor signal coverage such as:

1) Underground areas: basements, parking lots, tunnels;

2) Other places where cellular signal is shielded by metal or concrete walls: offices, supermarkets, cinemas, hotels;

3) Places distant from the BTS like private houses.
 

How Booster/Repeater Works?

Repeaters are designed to fulfill the idea of one and main principle: to fill the areas with the weak or bad signal and to amplify these low signals in order to provide you with the communication suitable for you.

GSM990-5W cellphone amplifier Description:

5W Amplifier Packing List:

Installation Approaches 
1.Fix up outdoor antenna reception on housetop and point to signal tower.
2.Connect outdoor antenna to "outdoor" port in repeater machine through cable.
3.Connect indoor antenna(s) to "MOBILE" port in repeater through cable also.
4.Plug power adaptor into AC power socket and finish installation.

GSM990 amplifier technical support:

1.Please make sure the outdoor antenna is well isolated with the indoor antenna(s). They should not be on the same horizontal line. The outdoor antenna should be on the housetop, at least 10 meters far away from the indoor antenna(s), better with stairs or wall(s) in between. Put the indoor antenna(s) in the middle of room, far away from the window and door.

2. If still no signal reception after activating repeater, please check if outdoor antenna points to signal tower or elsewhere have strong signal and check if strength achieve -70dBm. Please adjust the direction of the outdoor antenna until it catches good and steady signal.  To ensure the result, the outdoor signal should be as strong as possible.