Cell phone signal blocking devices - how cell phone boosters work

Mobile Signal Booster GSM 700MHz GSM Cell Phone Signal Repeater 4glte Full Band Pico-Repeater  4GLTE 700 TE-735B Full Band Pico-Repeater Brief Description： This model  signal booster 4glte700MHz,with an outdoor donor antenna could receive the signals and bring good signals in a relative good signal sources places and pass the signal to the amplifier and then spread it to where the Signal is weak. Such as parking lots, basements, elevators and some hotels etc. These products need to be used in remote areas of the mountains.The machine can cover a range of 500-3000 square meters in some places where some signals are relatively simple.If the signal environment is not very good, the coverage area will be small. Only amplifying the downlink signal will not effect on the operation of the base station.   Features: *High system gains. *Full duplex and double-end design, external power supply, and convenient installation. *ALC technology with auto-steady function adopted. *Provide power indication and uplink and downlink indications. *With the amplified linear power, the intermodulation and spuriousness are suppressed effectively. *The reliability conforms to GB6993-86 standards. *The electromagnetic compatibility conforms to ETS300 609-4 standards.   Applicable place: It can be applied in Building rooms there have weak signal of mobile.   Specification: Frequency Range: 1. TE-735B (Uplink: 703-748MHz;   Downlink: 758-803MHz); Gain: 1. TE-735B (Uplink) Gp≥80dB    (Downlink) Gp≥85dB; Outout Power： 1. TE-735B ≥35dBm  5W; Pass band ripple:≤4dB Guard band rejection:（BW-60dB）≤120MHz , （BW-70dB）≤127MHz I/O impedance:50Ω/N Connector I/O return loss:≤-10dB Noise figure:≤-8dB Intermodulation attenuation(Po=13dBm):≤-40dBc Transmission   :≤0.5μs Ambient:-10℃～50℃ Power supply   :AC110～220V±10%   45～55Hz Size:350mm×230mm×60mm Weight:4.5kg Reliability:To the GB6993-86 standard Electromagnetic:To the ETS300 694-4 standard Function:a) Power supply LED denote b) Export power LED denote   Package contents: 1 pcs booster 1 set power supply 1pcs user manual 1 set installation screws    

cell phone signal blocking devices

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