Product Description The device featured by easy installation & operation and no interference. It is the ideal device for boost mobile phone signal. A mobile phone repeater could also improve indoor magnetism environments, protract cellular battery life and reduce radiation of cellphones. Features l High gain, easy installation and operation. l Full-duplex, single-port design, build-in power supply. l Use ALC technology, adjust extent automatically l LED Light Working & Signal Condition Indicators l Big linear power, control intermodulation & saturation stably l Dependability stand by GB6993-86 standard l Compatibility of electromagnetism according with ETS300 609-4 l CE and RoHs Approved Technique Frequency range DCS1800 17101785MHz 18051880MHz Gain ( dB) Uplink Gpâ?¥55 Downlink Gpâ?¥60 Export power (Po) â?¥30dBm Pass band ripple â?¤3dB I/O impedance 50Ω/N connector Noise figure â?¤4dB Transmission Delay 0.5s Ambient temperature -10 pan>60?pan> Power supply AC110240V 4555Hz Size 204 120 37mm Reliability To the GB6993-86 standard Electromagnetic compatibility To the ETS300 694-4 standard Function a) Power supply LED denote b) Export power LED denote coverage area 3000 m2 Installation Approaches Fix up outdoor antenna reception on housetop and point to signal tower. Connect outdoor antenna to â??outdoorâ?� port in repeater machine through cable. Connect indoor antenna(s) to â??indoorâ?� port in repeater machine through cable also. Plug power adaptor into AC power socket and finish installation. Technique Supporting If still no signal receipt after activated repeater, please check if outdoor antenna point to signal tower or elsewhere have strong signal and check if strength achieve -70DBM. If cannot call out, please adjust the direction of outdoor antenna. If strength is not steady, please check if outdoor & indoor antennas are too close. Please ensure the outdoor and indoor antennas have distance of 20 Accessories Selection Outdoor antenna use 7 unit yagi type antenna, indoor antenna use board or rooftop antenna and signal wire use coaxial-cable. Packing list Main unit 1pc Power supply 1pc User manual 1pc