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Cell phone signal amplifier (also referred to as signal booster or direct signal amplifying station) is designed to solve cell phone signal blind. In some location such as remote area from base station, high-rise, basement, location behind by building, underground civil air defense projects, subway stations, elevator and many other places, cell phone can not be used due to receiving signals fail. This cell phone signal amplifier is aimed to solve the problems. GSM mobile phone signal amplifier,cellphone repeater/booster, Features: * Convenient and easy to use
* Works with GSM cell phone service providers
* Works with all cell phones and smart phone models
* Can be used for many occassions that receive signal badly
* Boosts signals to and from cell tower Specifications: Package includes:
1* Charger (We send EU adapter, if you need additional adapters, please leave a message, thank you!)
1* User manual 1* outdoor antenna with 10m Cable 2* indoor Antenna To use this product to enlarge your signal, the outdoor signal shall be as good as possible. The product will not work well if your outdoor signal is not good or bad. *The Post Air Mail takes about 20~45 working days to deliver, sometimes takes about 60 working days. If you did not get your item after long time, please DO NOT open any dispute, Please contact us to extend time for your order and report to post office. *Damaged on Arrival: When you sign the parcel, please check it carefully. You\'d better take a video or photos when open it. If there is any damage or shortage for your parcel, contact your Post Office or Express company immediately, Please send video or photos to our service staff at the same time. DO NOT open any kinds of claim at aliexpress, We will extend time for your order once you reported to us and give you a satisfied solution. How Booster/Repeater Works? Repeaters are designed to fulfill the idea of one and main principle: to fill the areas with
the weak or bad signal and to amplify these low signals in order to provide you with the
communication suitable for you. The repeater makes the signal stronger in places with poor signal coverage such as: 1) Underground areas: basements, parking lots, tunnels;
2) Other places where cellular signal is shielded by metal or concrete walls:
offices, supermarkets, cinemas, hotels;
3) Places distant from the BTS like private houses. Steps that describe the work of Repeater. 1) The outside antenna receives the signal from the nearest mobile base station.
2) The outside antenna sends the received signal through the coax cable to
the installed Repeater.
3) The Repeater accepts the low signal and improves it.
4) The improved signal goes to the inside antenna through the connection coax cable.
5) The inside antenna send the improved good signal to your mobile phone. Installation Approaches: 1) Fix up outdoor antenna reception on housetop
or outside the window and point it to the signal tower.
2) Connect outdoor antenna to “BTS” port in repeater machine through cable.
3) Connect indoor antenna(s) to “MOBILE’ port in repeater machine through cable also.
4) Plug power adaptor into AC power socket and finish installation. Technique Supporting: 1) If still no signal receipt after activated repeater,
please check if outdoor antenna point to signal tower
or elsewhere have strong signal and check if strength achieve -50DBM.
2) If can not call out, please adjust the direction of outdoor antenna.
3) If strength is not steady, please check if outdoor & indoor antennas are too close.
Please ensure the outdoor and indoor antennas have distance of 10 meters at least,
with a wall between and not in a same horizontal line.
Installation steps 1 around the use of mobile phones on the top of the building or to find the direction and position of the strongest signals, as the location of the installation outside antenna 2 after selecting the appropriate position will indoor ah you fixed on the wall or support
3 in related indoor location choosing appropriate location (this site for nearly power supply and outdoor antenna side rain sunscreen and well ventilated for best location) install indoor machine and fixed on the wall or support
4 will be introduced to the outside antenna is suing (OUTDOOR) interface links at this point and OUTDOOR antenna and indoor amplifier
May determine the installation position of indoor antenna fixed antenna
6 INDOOR antenna and received the INDOOR antenna amplifier connection end interface on the other end of receiving repeater machine INDOOR (INDOOR) port Mobile signal amplifier installation considerations: 1, outdoor antenna installation location must be able to clear on the phone, the installation must be level yagi. 2, eight wood and the distance from the antenna suction a top as far as possible, more than 8 meters, not in the same line of sight range, lest cause self-excited, typical generally use a wall for isolation, the effect is good.
3, 75-5 coaxial line is usually F head through to the host, should be an absolute guarantee F head fastening, recommend the use of 75-7 coaxial feeder effect is obvious.
4, F head must be for 75-5 inch line 75-5 coaxial line should also form a complete set, can appear otherwise can\'t install. Question answer: 1, mobile phone signal amplifier can produce radiation, affect the body health? A: definitely not.Power is not big, because the downlink power output is only about 500 mw, the relative maximum transmitted power of GSM mobile phone, only 1/20, very small.
2, have electricity, two lights are not bright??
A: very likely ac power supply is unreliable, suggest change the socket.
3, signal full, can\'t call, but can come in, what\'s the problem?
A: the reason for the mobile launch of signal transmission to the base station can not be a good cause, for many reasons, generally can be adjusted through the yagi direction, such as rotate 360 degrees, choose a good point of view, fixed again.If still can\'t solve, you can consider whether or not the connection and joint is too long, or loose, and tighten in place.General section of line no more than 20 meters suitable outdoor, indoor section of the line is not more than 10 meters. Scope of application: 1) signal blind area of small area or weak signal area: such as underground or semi-underground place of business, small basement, underground parking, etc 2) small hot signals complaints area: such as conference room, small supermarkets, shopping malls, office rooms and small public areas, etc
3) traffic and social influence of big area: bars, Internet cafes, dance halls, cafes, fitness clubs, leisure entertainment, etc
4) elevator, especially in the elevator shaft inconvenient to lay cables of the elevator
5) family, office, luxurious yacht, car, * * system and road safety?Fei miaotuo magpie?
6) there is no signal within a large workshop Function characteristics: 1) high gain of linear power amplifier 2) automatic level control
3) low noise receiving amplifier
4) there is no disturbance to the base station, opening without need of the original system and the base station parameter to adjust
5) stable and reliable electromagnetic compatibility design
6) do not cause the increase of base station background noise, will not lead to a drop in the quality of base station communication
7) in full-duplex communication way
8) cooling effective and reasonable, beautiful structure, volume is appropriate