ขาย 2G 4G LTE Cell Phone Booster Band3 1800MHZ GSM LTE Booster LCD Display 70dB Gain DCS 1800MHz Mobile Phone Amplifier GSM ราคาที่ดีที่สุด

Important Note ( please read , and please read all descriptions carefully ) Make sure you can receive good signal that you want to amplify on your house outside,which must be can getting 2~5 bar signal (-70dB~-90dB signal strength) on your mobile phone. Please note that the signal booster can only boost the mobile phone network signal, but does not help to generate any signal. For example, if your outside signal has 0 bar, it can not work or bring you any signal.. Below is the method to check the mobile phone signal strength. Turn on the network (2G/3G/4G) you want to amplify and go to outdoors of your house: A: Install an app: Network cell info Lite, and show the screenshot to us. B: If you use iPhone .Holding the phone to the outside.Dial: *3001#12345#* → click into :Serving Cell info Features: High gain, fully integrated 1800 MHz antenna system. Powerful amplifier enables up to +75 dB of signal gain including cable loss. Intelligent signal processing and real time adaptive operation. Automatically adjusts power levels as needed to ensure a consistent coverage footprint. Reprogrammable (in the field) enabling spectrum or carrier reconfigurations as needed. Auto-Track LED diagnostics displays aid install and operation. Not interfere with other wireless frequencies or radio devices. Specification: Model: DCS 1800MHz Size: 140*100*20mm Frequency range: Up link DCS 1710-1785mhz,Downlink DCS 1805-1880mhz Gain(dB) GSM Up link: 60 ± 10 GSM Downlink: 65 ± 10 Gain adjustable range: MGC 25dB Output power(dBm): 1 Pass band ripple DCS: 5dB Ambient temperature: -10~50 Power supply: AC110/220V(Used AC/DC adapter 12V for DC packaging: 1.Signal Booster 2.outdoor signal antenna 3.indoor signal antenna(with 5M cable) 4.15m or 20 25 30m 50Omega Cable 5.English manual