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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Lintratek
  • Model Number: KW20L-GW
  • Output Power: 20 ±2dBm
  • Gain: 65 ±2dB
  • Bandwidth: 25M+60M
  • RF Connector: N-Female
  • VSWR: ≤3
  • MTBF: more 50000 hours
  • Power Supply: AC100~240V, 50/ 60Hz DC12V 3A
  • Power Comsumption: < 36W
  • Dimensions: 195*180*20mm
  • Gross weight: < 1.4Kg

Packaging & Delivery

Packaging Details Neutral paper box
Delivery Time Around 2-5 working days after confirm the order


Product Description

china cell phone booster GSM/3G mobile phone mini amplifier cell phone audio amplifier 900/2100mhz with LCD dual band repeater




A regular cell phone repeater consists of: (full kit)

1 -Outdoor antenna log periodic antenna(or wall mounted, yagi antenna)

  • 2 - Indoor Omni ceiling antenna( panel antenna) 
  • 3 – Power adapter 
  • 5 - User manual
  • 6 - Cell phone repeater
  • 7. 10 meters outdoor cable and 1 meter indoor cable 


Specification should care about 


Parameter dataUplinkDownlink
Frequency Range   GSM+WCDMA890~915/1920~1980 MHz935 ~ 960 /2110 ~ 2170 MHz
Output Power15 ±2dBm20 ±2dBm
Gain60 ±2dB65 ±2dB
Ripple in BandGSM≤ 5dB, DCS≤ 6dB, WCDMA≤ 5dB
Spurious Emission           9KHz~1GHz -36 dBm
1GHz~12.75GHz -30 dBm
Intermodulation Products9KHz~1GHz -36 dBm
1GHz~12.75GHz -30 dBm
MTBF50000 hours
Power SupplyAC:100~240V, 50/ 60Hz; DC:12V 3A
Power Comsumption< 36W
Impedance50 ohm
Mechanical Specification 
RF ConnectorN-Female
Dimensions (D*W*H )195*180*20(mm)
CoolingHeatsink Convection cooling
Net weight< 1.4Kg
Packing size (D*W*H )250*240*65(mm)
Gross weight< 1.8Kg
Installation TypeWall Installation
Environment ConditionsIP40
Humidity< 90%
Operating Temperature-10°C ~ 55°C

How should you install repeater (very easy and simple):

Step 1: Use your mobile phone to test signal strength outside house or on roof, -70dbm is the basic requirement (full bar).


 Step 2 Install outdoor antenna in that location and keep adjusting, point it to signal tower station, try to get best signal.


 Step3: Run outdoor coaxial cable into building in a convenient location to connect with signal repeater.


 step 4: Mount your indoor antenna with signal repeater

step5:  Power up signal repeater device to check the signal inside, moving outdoor antenna until you get satisfied signal.


 Note: Connect outdoor (BTS) port with outdoor antenna, connect indoor ANT(MS) port with indoor antenna, outdoor antenna is mounted at a higher position. Both antennas should be 10 meters far away from each other at least.


Indoor and outdoor antenna must be separated by wall.

Packaging & Shipping


Our Services


Company Information




  After - Sales Service                                                                        


We have 12 months quality guarantee for all customers, you can return goods to us when receive defective repeater, but air freight charges should be responsible by buyer.


 Signal problem & installation technique supporting                          

1.If still weak signal receipt after installation, please check if outdoor antenna point to signal tower correctly or elsewhere has stronger signal and confirm signal strength achieve-70DBM.


2.If still have no signal after installation, please check our device power adapter whether connected perfectly? And connectors connect well.


3. If strength is not steady, please check if outdoor and indoor antenna is too close; please ensure outdoor antenna has distance of 10 meters at least, with a barrier and not in a same horizontal line.


4. Packed the outdoor connector by waterproof glue, otherwise wet reduce the signal cover area.



Foshan Lintratek technology Co.,Ltd

Vicky lee
Mob: 86+18520900512
Whatsapp: +86 18520900512
Web: www.lintratek,com      
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