The signal repeater needs to work with two types of antennas. One is outdoor antenna and another is indoor antenna.Signal repeater boosts the received outdoor mobile phone signals from base station by the downlink circuit to improve the indoor signal strength, and transmits the boosted mobile phone signals back to base station by the uplink circuit to achieve the mobile communications.

The basic condition for the signal repeater’s normal operation is that there should be stable mobile phone signal source supporting smooth calling in the place where the outdoor antenna is installed.

This model always use in this way:  Cell phone Signal Booster Amplifier + Indoor/Outdoor Antenna

Selling point of product :

1.  Max. 500 square meters suitable .
2.  GSM booster;
3.  900mhz booster;
4.  LCD display function to display signal receives.