GSM signal Booster for GSM mobile signal ST900&AGC mobile signal booster for home Max coverage 300sqm  What is the booster?A mobile phone signal repeater provides the ultimate solution in any indoor area where cellular communications can not work well due to leak of signals (but outdoor signal good).The repeater device features easy installation & operation,Website: , 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.ST900&15dBm mobile phone signal booster specificationFrequency rangeuplink:890-915MHzDownlink: 935~960MHzoutputUp link :15dBm Downlink: 17dBmGainUp link: Gp≥65dBDownlink: Gp≥68dBNoise figure≤6dBAmbient temperature-15°C~55°CSize/weight130*95*28MM/600gFunctionAGC/ALCI/O impedence50Ω/N connectorTransmission delay≤0.5μsPower supplyAC/220V±10%   45~55HzCoverage area300sqmMobile Signal Booster Features:1.Small Size, Light Weight, Beautiful Repeater2.Low Operating Temperature3.High-Gain Linear Power4.Ultra-Low Noise Receiver5.Full-Duplex Communication Mode6.With AGC ALC Function7.CE&RoHs Authentication CertificatedTerms and ConditionsCertificateCE/RoHsCountry of OriginChinaPort of DispatchShenzhenProduction Capacity1000pcs/monthDate of DeliveryWithin 3 days after received payment informMOQ10pcsWarranty2yearsPacakge1pcs/box; 20pcs/cartonCountry of OriginChinaSignal Booster Full Sets1.Outdoor antenna like YAGI antenna or panel antenna*12.Indoor Omni ceiling antenna *13.Power adapter*14.User manual*15.Cell phone repeater*16 .meters outdoor cable and 2 meter indoor cable *1Mobile Phone Signal Repeater Installation Steps1) The outside antenna receives the signal from the nearest mobile base station. 2) The outside antenna sends the received signal through the coax cable to the installed Repeater.3) The Repeater accepts the low signal and improves it.4) The improved signal goes to the inside antenna through the connection coax cable.5) The inside antenna send the improved good signal to your mobile phone.GSM Signal Repeater ST900A LED IndicatesLEDStatusDefinitionPowerRedNormalOffDC power problemDL(Downlink)WhiteNo signal receivedSolution: Adjust the outdoor installation to get sound signal(see page 14)GreenSignal received ok but not perfectSolution: Adjust the outdoor installation to get sound signal(see page 14)RedFull signal receivedUP(Uplink))FlickerWhen there is a call, it is normalGreenAlways green means self-excitedSolution: Turn off the booster, adjust the indoor and outdoor antenna again, and try to expand the distance or create some barriers between them.