Sell Tri Band 2g 3g 4g Lte booster Band 1/3/8 GSM 900mhz 1800mhz WCDMA/UMTS 2100MHz best price

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 3~5 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. -cover: 200-500 square meters without obstacles -improve Gsm 900 Lte 1800 and Wcdma 2100 at the same time -led light indicates the state of the signal. -if can meet 900 1800 2100 frequency band , it can support different oprators. -easy to install. This signal amplifier kit includes everything you need. -one year warranty. Specification: -set1:Gain: 70dB (DL); 65dB (UL) set2 Gain: 75dB (DL); 65dB (UL) -power output: 20dBm -GSM: up to link 890-915 mhz; down link 935-960 mhz DCS: up to 1710-1785 mhz; down link 1805-1880 mhz WCDMA: up to 1920-1980 mhz link; down link 2110-2170 mhz -impedance: . -Connector Type: N Female Connector packaging: 4.15m 50Omega Cable installation steps: -Fix the reception of the roof outdoor antenna or the high place and the turn signal point. -Connect the external antenna to repeater machine '' BTS '' port via cable. -Connect indoor antenna to repeater '' MOBILE '' port. -AC plug power cord into the power source and finished. -TIP: An outdoor antenna should be "isolated" from the internal antenna, that is, it must be constructive obstacles (walls, partitions, etc.) between the antennas. Note:when outdoor antenna and indoor antenna are separated not enough, then it will be self-oscillation. your phone will not get any signal.