ขาย 900 1800 2100 Triband Amplifier General Signal Amplifier LTE GSM CDMA Repeater Mobile Phone Enhanced Signal France sPRN ราคาที่ดีที่สุด

Make sure you can getting good signal 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. Here is the method to check the mobile phone signal strength: 1). Andriod System Step: Setting About PhoneStatusSIM StatusSignal Strength 2). Iphone System Step: Call *3001#12345#* Serving Cell Info Only signal booster package: 1). 1*900//1800/2100 Tri-Band Booster 2). 1*Power Supply 3). 1*English User Manual Specification: 1).Frequency Range Uplink: 890~915/1710~1785/1920~1980MHz 2).Frequency Range Downlink:935~960/ 1805~1880/2110~2170MHz 3).Gain: 70dB 4).Output Power: 20dBm 5).Power Adapter: EU/US/AU/UK Plug 6).Power supply: AC:110～220V; DC:12V 2A 7).Connector Type: N Female 8).Coverage: Up to 500 sqm without barrier 9).Band number: Band 8/3/1 How to work: 1.Outdoor antenna receive the signal from base station. 2.Then, sends the signal to repeater through long cable 3.The repeater receives the signal and improves it. 4.After that, signal into the indoor antenna(panel/ceiling/whip antenna),finally your mobile phone signal will improve. Warm reminder: This set of products does not include antenna