Kits Tri-Band 2G 3G 4G Cellular Signal Booster GSM 900 LTE 1800 WCDMA 2100 Cell Phone Amplifier 70dB GSM Repeater 4G Antennas

Kits Tri-Band 2G 3G 4G Cellular Signal Booster GSM 900 LTE 1800 WCDMA 2100 Cell Phone Amplifier 70dB GSM Repeater 4G Antennas


Save US $134.07

  • VendorShenzhen Lipotech Communication Co., Ltd
  • List PriceUS $327.00piece
  • SaveUS $134.07piece41% off
  • Your PriceUS $192.93piece
  • ShippingFree Shipping
  • Product Rating3.0(0)
167.5659.0039.20103.25107.38-107.9765.88114.0061.36 Diy kits 2G 3G 4G signal repeater GSM 900 WCDMA 2100 LTE 1800 Tri Band Mobile Phone Signal Booster 70dB Cellular Repeater 3G 4G Amplifier

Model No :KW20L-GDW

Uplink 890-915/1710-1775/1920-1980 MHz Downlink :935-960/1805-1870/ 2110-2170 MHz Gain :70±2dB Power Supply :AC110V~220V;DC+5V/4A Connector Type: N female connector Improve Indoor mobile signal,no more dropping calls,no more bad network speed. If protection time is running over ,please contact to extend time ,
if any problem found ,please contact to solve by a friendly way .

******Important Note ( please read , and please read all descriptions carefully ) ************:
To let a booster work it needs conditions :

1. please be sure that signal outside of your house is good enough to enable booster to work , what good signal is:
a). stand there to check if you can make fluent call or not,if can ,then you buy ,otherwise please dont buy ;
b). Put your phone there to check its signal strengthness :
Android : setting→about phone→status→network ,dbm display shall be at -90dbm to -95dbm around ;
IOS : dial *3001#12345#*, dbm display shall be at -90dbm to -95dbm around ;

-100dbm to -105dbm means bad,so please dont buy

2. Please be sure the place where you are going to install is GSM 900MHZ /WCDMA 2100mhz/DCS 1800MHZ

WCDMA 2100MHZ(Band 1:Uplink:1920~1980 MHz;Downlink:2110~ 2170 MHz)

DCS 1800MHZ(Band 3:Uplink:1710~1785 MHz;Downlink:1805~ 1880MHz)

3. ( important )Install them correctly to avoid interference ( auto osillation ), when interference exist , signal LED will be normal on,but phone can not make call or no signal displayed on phone, for small cars ,it is a big problem to solve . Many buyers meet this problem , and can not solve it well

For avoiding unhappiness ,please do not buy before you are clear about the above .

Need us suggestion,please contact us before biding .We will give you a best solution to get the best signal .Thank you.

Package Including:

1.Tri-band booster for GSM900mhz+WCDMA2100mhz+DCS1800mhz 2. Charger EU Plug (AU/UK/US Adapter will come with the item according to your shipping address) 3.LPDA Antenna

4. 2 x Indoor Ceiling Antenna

5.2 x 10 Meters Black RG6 Coax. Cable

6.1x 5m cable

7.1 x 1m cable

8.2 way -Power splitter

9.2 x N-KK

2 way power divider :

Log periodic antenna


Frequency: 700-2700mhz

Indoor ceiling antenna

Gain: 3dBi

Frequency: 800-2700mhz

10 meters cable N male connector to N male connector

Installation Approaches:

1.Fix up outdoor antenna on the housetop and point to signal tower.

2.Connect outdoor antenna to "BTS" in repeater via cable;

3.Connect indoor antenna to"Mobile" in repeater via cable;

4.Plug the power adaptor,power light will be lighting ,when the outdoor antenna receive the strong signal the LCD will be display the signal Please note that,when you find signal twinkling and have no full signal display that means have no signal input and you need to check your outdoor antenna position.

TIP: An outdoor antenna should be "isolated" from the internal antenna, that is, there must be constructive obstacles (walls, partitions, etc.) between the antennas.

When the distance between the external antenna and internal antenna is not far enough, both antennas will receive signal from the other one, then your phone will not receive any signal.

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. 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. Problems and solutions ( important ) , please read : All booster will be tested before shipping to ensure quality , if you dont know any about booster and installation please start from 0 as below . 1. After power connected ,if LCD does not display or power LED is not on ,it means booster is defective ,kindly choose a friendly to solve it ,we accept to reship or refund. Andy dispute or negative will cause you on black list and an uncooperative solution ; 2. After you connet cables and antenna onto booster ,Lcd display 1-3 bars, you need to change your external antenna to a better place to gain stronger signal, if you use small pin antenna ,please upgrade it to a panel or a yagi ; If you can not find a place with good signal to enable booster with full bar display ,it means your outdoor signal is too bad ,booster will not work . So please kindly contact for a solution to return . 3. After you connet cables and antenna onto booster ,Lcd display full bar or signal LED is on ,but phone can not make call , it means big interference ( not booster quality problem ) which cause booster dead called auto osillation , so you need ( indoor and outdoor antenna can not see each other ) : 1). Use longer cable to enable external antenna far away from booster and indoor antenna ; 2). Face external and internal antenna to different direction; 3). Close widows or door to ensure both antennas well insulated . 4). Check with your operator to ask what frequency are adopted in your area to ensure your booster matchs ( operator will use 900mhz in some area and use 1800mhz in an other area ) .

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