900 3G UMTS 2100 Dual Band Cellphone Amplifier Cellular Signal booster GSM repeater 2g 3g 900/2100Mhz Mobile Signal booster set

900 3G UMTS 2100 Dual Band Cellphone Amplifier Cellular Signal booster GSM repeater 2g 3g 900/2100Mhz Mobile Signal booster set
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  • Список ценUS $103.92piece
  • Продажная ценаUS $103.92piece
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Oписание продукта


Lintratek Set  GSM 900 1800 WCDMA 2100 Tri-Band Booster 2G 3G 4G LTE 1800 65dB Mobile Phone Signal Amplifier Cell Phone Cellular Repeater 4G Antennas 


Model No :KW20C-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+12V/2A
Connector Type: N female connector

******Important Note ( please read , and please read all descriptions carefully ) ************:

Please make sure you can get   at least   2 bars  900mhz /1800MHZ (Band 3) /2100mhz (Band 1)signal of outdoor before you buy, otherwise this product can’t help you. It needs outdoor good signal to improve your indoor signal.


There are some ways to check the frequency: (Frequency doesn’t match, the signal booster can’t works.)


1. Turn on the network (2G/3G/4G) you want to amplify and go to outdoors of your house:


A:If you use Samsung phone .Holding the phone to the outside. Dial:  *#0011# →ServiceMode→ 


B.If you use iPhone .


Holding the phone to the outside.Dial: *3001#12345#* → click into :Serving Cell info


2.Install an app: Network cell info Lite, and show the screenshot to us.


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. Indoor Ceiling Antenna

5.15 Meters Black RG6 Coax. Cable

















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 ) .