Outdoor Fiber Optic GSM Signal  Repeater consists of Master and Slave.  One Master can work together with 1 to 4 Slaves. The Master transfers the BTS signal into optical signal and transmits the optical signal to the Slaves. The Slaves transfer the optical signal into RF signal, amplify the RF signal and cover the target areas. The application of GSM 900 Fiber Optical repeaters will effectively eliminate the signal blind areas, enhance the network quality, improve the image of cellular operators and bring them more profit.Typical Applications:Kingtone GSM 900 Fiber Optical Repeaters are mainly used in indoor area and outdoor areas already with optic fibers. They are widely used in the places below.Railway  Tube  Scenery spotCampus  Hospital  Oil fieldRoad  Sea-route  TownRural area  Airport  VenueTechnical Specifications:ItemsGSM900MHz Fiber Optical RepeaterDonor UnitRemote UnitFrequency RangeUplink890-915MHzDownlink935-960MHzWorking Band WidthVarious bandwidth is available upon requestNo. of Channels1,2,4,6,8 for optionTransmission DistanceMax20KM(From Donor Unit to Remote Unit)Max Input Level+10dBmOutput PowerUplinkMin-10dBm-Downlink-Min37dBm-43dBm(5W-20W)GainMin65dBAGC Control RangeMin20dB(+/-2dB)Gain Control Range31dB(1dBStep)VSWR<1.5Ripple in BandMax+/-1.5dBInter modulation attenuation≤-45dBc ♦; ≤-36dBc ♦SpuriousEmissions9KHz-1GHzMax-36dBm1GHz-12.75GHzMax-30dBmRF ConnectorN-type FemaleI/O Impedance50ohmNoise FigureMax5dBGroup Time DelayMax1.5µSOptical FiberSpecificationWave Length1.31µm;1.55µmOutput PowerMin0dBmFiber TypeG652Fiber ConnectorFC/PCSensitivityMax-13dBm(C/N=20dB)Time DelayMax5µS/KMTemperature Range-30degreeCelsiusto+55degreeCelsiusRelative HumidityMax95%M.T.B.FMin100,000hrsPower SupplyDC -48V / AC220V (50Hz)/AC110V(60Hz)(+/-15%)UPS Backup Power Supply(Optional)6hours/8hoursNMS Monitor FunctionReal-time alarm for Door Status, Temperature, Power Supply, VSWR, Output Power, Gain, Uplink ATT, Downlink ATT and etc.Remote Control Module(Optional)RS232orRJ45+WirelessModem+ChargeableLi-ionBattery