ATT and ALC function via remote monitor, High system gain>70dB, High system output ... bi-directional amplifier with attenuation and ALC function via remote monitor, which used to enhance signals between a mobile ... to small, medium-size areas such as home, offices, shops, and basements, remote countryside , car, ship and mining well etc ... ≥maximum output power-3dB Wide Band Booster -27dBm Remote Level