GSM Repeater Band1/ 3 /8 GSM 3G 4G Signal Booster Full Set

BEFORE-ORDER NOTICE:1. Only band matching will work, so please select the correct band. The following will tell you how to test the frequency band!2.  The outdoor mobile phone signal strength needs to reach -95dbm. (at least 3 signals) How do check the frequency band of mobile phones and outdoor signal strength?1. Android Mobile Phone.    A. Download App called "Network Cell Info Lite".    B. Step: Settings → System → About Phone → Status → Network → SIM Status.2. iPhone ：Dial: * 3001#12345# * → Serving Cell Info → Freq Band Indicator ● Frequency Band:2G GSM 900MHz [Band 8] (Uplink: 890-915MHz, Downlink: 935-960MHz)3G W-CDMA 2100MHz [Band 1] (Uplink:1920-1990MHz, Downlink:2110-2180MHz)4G LTE DCS 1800MHz [Band 3] (Uplink:1710-1785MHz, Downlink:1805-1880MHz) ● Coverage area: Support Maximum coverage area is 200sqm. (without any barrier) One antenna cover about 50-100sqm. PRODUCT INSTALLATION:1) Fix up the outdoor antenna on the housetop or outside the window and point it to the signal tower.2) Connect outdoor antenna to "BTS" port in repeater through cable.3) Plug the power adapter into the AC power socket.4) Please adjust the direction of the outdoor antenna, until the signal booster has a good signal, it is very important.5) Connect indoor antenna (s) to the "MOBILE" port in the repeater.6) Please ensure the outdoor and indoor antennas have a distance of 10 meters at least, with a wall between and not in the same horizontal line.