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Item specifics
  • Model Number: Mini CDMA 850MHZ Booster
  • Frequency range:: Uplink 824-849MHZ ,Downlink 869-894MHz
  • Gain (dB): : Up link Gp>50,Downlink Gp>55
  • Coverage:: 200 Square Meters
  • Display Type:: LCD Cell Phone Signal Booster
  • GSM 850MHZ Signal Booster:: Cell Phone Amplifier
  • is_customized:: Yes
  • cellular signal booster:: repetidor de celular 850mhz repeater
  • Mobile Signal Repeater :: cell phone signal booster
  • gsm repeater:: repeater gsm
Product Description


If you need additional signal booster and accessories, please click


    Attention Please:

    1.This product is called CDMA 800MHz in China, but it\'s used for 850mhz GSM/CDMA worldwide. Please do not misunderstand when you see the number on the device.

    2. This only inldudes a signal booster, a charger and a user manual and without any antenna accessories. It can not be used only with the booster.


    LCD Display !!!

    Mini CDMA 850Mhz Mobile Phone Signal Booster

    + Power Adapter




    CDMA800 850MHz Mobile Phone Signal Repeater

    A mobile phone signal repeater provides the ultimate solution in any area where

    Cellular communications can not work well due to leak of signals,the repeater

    Device features easy installation & operation ,build-in indoor antenna and no

    Interferece,it could also improve indoor electromagnetism environments.


    Protract cellular battery life and reduce radiation of cellphones.

    A mobile phone repeater is ideal for house ,home,office use.

    Introduction to mobile phone signal repeater

    Enhance mobile phone signal strength.

    Improve communication quality.

    Reduce cellphone radiation.

    Protract cellular battery life.

    Economic building life.

    Easy installation.

    Display device (for reference)

    The external power supply detecting normal display --- OK.

    Internal power supply detecting normail display --- OK.

    MMIC circuit detects normal display --- OK.

    -50dbm signal input and detection to achieve full displayed.


    LCD display function,can display signal strongness which it receives from outdoor antenna,the signal bar will be full black if the signal is received very good.


    High gain ,easy installation and operation.

    Full-duplex,singal-port design,build-in power supply.

    Use ALC technology ,adjust extent automatically.

    LED light working &signal condition indicators.

    Big linear power,control intermodulation & scatteration stably.

    Dependability stand by GB6993-86 standard.

    Compatibility of electromagnetism according with ETS300 609-4.

    Technique Specifications:



    Up Link

    Donw Link

    Frequency Range




    -70DBM ~ -40DBM/FA (1.23MHz)


    55Db/ ±3db

    60Db/ ±3db

    Max Output Power


    Total Power


    Total Power



    Power Supply

    AC 110/220V (used AC/DC Adapter 5V dc)



    Compact Design

    Indoor Use

    Item Diemension

    130 x 100 x 20mm

    Connect Mode

    N connector

    Ambient temperature


    Signal coverage area :

    1.Support Maximum coverage area is 200 square meters.

      ( Depend on the area condition)

    2.One indoor antenna only use for about 100 square meters.

      ( Without any obstacles and wall.)

    If want to make all use of 200 square meters which the host supports,

    need to add more indoor antennas (about2-3) and power divider / splitter.

    Package included:

    1 x CDMA800 850MHz LCD display signal repeater.

    1 x Power adapter

    1 x Manual



    1). This item is not come with any accessories of cable , Heads , antennas and so on;

          Only have a power Adaptor.

    2). Without the accessories ,this booster can\'t work ,if  you need them,

        please to buy them extra.


    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.


    Note :
    1.To use this product to enlarge your signal,
    the outdoor signal where put outdoor antenna shall be as good as possible ,
    the signal in your mobile phone shall be full and must be very stable for talking .
    The product will not work good if your outdoor signal is not good or bad .

    2.if sometimes the signal is full,sometimes no signal again in your mobile,
    or you couldn\'t call out when the signal is full,
    it couldn\'t be used any booster in your environment.

    3.Cell phone signal amplifier is impossible to ensure all environments are 100% effective,
    because the SIGNAL is very complex, especially in the city,
    no one can guarantee 100% available ,in some areas the signal is not necessarily,
    some of the signal is reflected signals, even the signal display very well,
    but the quality is poor, and have encountered a lot of environment can not be solved
    with any booster.

    4.We will not bear any responsibility of your outdoor signal is not good .
    And if your outdoor signal is not full,
    for example, the full signal shown in your phone is 5 bars,
    and you can only have it 4 bars ,then please think it over again before buy.

    5.The kits here can max. support 100 square meters if does not have walls .
    If you have different rooms ,it may work only for 1 room.

    Packaging Details
    • Unit Type: piece
    • Package Weight: 0.6kg (1.32lb.)
    • Package Size: 20cm x 5cm x 10cm (7.87in x 1.97in x 3.94in)
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    Packaging Details
    • Unit Type: piece
    • Package Weight: 0.6kg (1.32lb.)
    • Package Size: 20cm x 5cm x 10cm (7.87in x 1.97in x 3.94in)
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