GSM 900MHZ Mini LCD Signal Repeater Mobile Signal Booster Amplifier

Features: 1) Fully integrated 900 MHz antenna system. 2) Powerful amplifier enables up to + 85 dB of signal gain including cable loss. 3) Intelligent signal processing and real time adaptive operation. 4) Automatically adjusts power levels as needed to ensure a consistent coverage footprint. 5) Auto-Track LED diagnostics displays aid install and operation. 6) Patented algorithms and adaptive processing ensure our products will not interfere with other wireless frequencies or radio devices. Specification: 1) Frequency range: Up link GSM 890-915 Downlink GSM 925-960 2) Gain(dB) GSM Up link: 55 3) GSM Downlink: 60 4) Gain adjustable range: MGC30dB 5) Output power(dBm): 20 6) Pass band ripple GSM: 4dB 7) Guard band rejection: GSM(BW-60dB)42 MHz (BW-70dB)45 MHz 8) I/O impedance: 50/N Connector 9) I/O return loss: -10dB 10) Noise igure: -8dB 11) Intermodulation attenuation (Po=13dBm): 40dBc 12) Transmission Delay: 0.5us 13) Ambient temperature: -10~50 14) Power supply: AC110~220V10% 45~55Hz Installation Note: In order to achieve good results,please do pay attention on the following notes: 1. please install the outdoor antenna on the highest point of your building as possible as you can. 2.please try your best to keep the distance between outdoor antenna and indoor antenna as far as possible. Please take care the booster's functions is only to amplify the cellphone signal, do not create the cellphone signal, so if you cann't have a stable 2-3 bars in your cellphone at the place you want install the outdoor antenna, the booster maybe do not work well or even do not work. So In the case we suggest you donn't buy this item. please make sure distance above 10M between indoor and outdoor antenna, it's better divides one from another by a wall. Please try to choose a good signal place to set up outdoor antenna. Please sure that there are good signal 4-5 bars on your outdoor, or it will not work on your room. Package included: 1 x 55dB GSM Cellular Phone Signal Amplifier Details pictures: