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Item specifics
  • Brand Name: lintratek
  • Model Number: KW20F-WCDMA
  • Item: 3G WCDMA 2100 mobile phone signal repeater
  • With LCD Display: YES
  • Frequency Range: Uplink: 1920-1980mhz Downlink: 2110-2170MHz
  • Output Power: 20dBm
  • Power Supply: AC:100~240V, 50/ 60Hz; DC:9V 3A
  • Booster for: 3G 2100mhz Frequency
  • Cover area: 800 square meters
  • Dimensions (D*W*H ): 250*150*53(mm)
  • 2100mhz signal booster: gsm repeater 2100
  • Gain: 70dB
Product Description

gsm repeater 2100 2100mhz signal booster 2100mhz mobile signal booster 3g repeater 2100 repetidor 2100 gsm signal booster 2100 mhz gsm 3g 2100 repetidor repeater 2100 kit repetidor de celular 2100 wcdma 2100 2100mhz repeater repeater 3g 3g repeater repetidor de sinal celular 3g 3g signal booster

LCD Display 3G WCDMA 2100mhz Mobile Signal Booster 70dB Gain Cellphone Repeater 3G UMTS 2100 Amplifier Repetidor De Celular



Model No. KW20F-WCDMA
Used For 3G 2100MHz frequency
Gain 70dB
Real cover range 800 square meters
Max. cover range 1500 square meters
Gain Control Automatic Gain Control ≥20dB
 Type 3G 2100MHz Repeater & Booster Amplifier
Output Power 20dBm


Package Including:
1 x Booster  1 x Charger




Product Pictures


1000~2000 square meters coverage

This repeater can work with 3-4 indoor intenna. It is suitable for office, tall building, school, shopping mall,subway and other project.

Smaller size: 250*150*53mm

N Female Connector

GSM 850MHz  Uplink:1920-1980mhz   Downlink:2110-2170mhz


NOTE: This one is 70dB Gain!!! MGC Function!!!


This repeater has ALC(Automatic Level Control) function,it can automatically adjust the gain of itself according to the Output Power, thus can be controlled better. Also ,it has MGC function,you can adjust gain of the repeater manually by the adjusting switch on the booster.Besides,when self – oscillate happened, the system can shut down power automatically.









Installation Approaches:


1.Fix up outdoor antenna(usually use the yagi antenna) on the housetop and point to signal tower.

2.Connect  outdoor antenna to "BTS" in repeater via cable.(Notice:the machine must be away from outdoor antenna for  more than 10 meters)

3.Connect indoor antenna(usually use panel antenna)  to"Mobile" in repeater via cable(the machine must be away from indoor antenna for more than 1 meters)

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.

6 Working principle:

1.Outdoor antenna received the signal from signal tower.

2.Then,through cable sent the signal to the indoor repeater.

3.The repeater accepts  and improvs the signal.

4.After that,the fine signal goes into indoor antenna,via cable to  your mobile phone.




Lintratek Shipping Terms :

Items are only shipped after payment confirmed.(normally 2 days)

1.After verification the payment,we will send the items within 48-72hours except holiday.

2.We just ship to  the correctly address depend on the aliexpress you registering ,when your place an order please write down your matching address .If you want to change address, please contact us before shipments.

3.Please note that delivery time is estimated. If you do not receive your goods beyond estimated delivery time,please contact us before open dispute,we will check and solve the probem for you.

4.All goods from ours are checked before shipping. They will be packed very well to make sure they are in good condition when you get the goods.

5.When you choose UPS, FEDEX and DHL, Remote Area Fee may occur if your address is remote areas.

Lintratek Service:

1.We accept escrow and banking transfer.

2.We accept refund  if there is qualility problem(sent us the picture to evidence the problem),but need to return the goods with the original package,and the buyer need to pay for the back and forth freight.

3.Our product can boost the fine indoor signal,only if your outdoor signal is perfect,Please make sure Your side outdoor signal is good,if not, our device can not expand anything you expect.

4.Regarding to the PI declare value,we can write the value as your requirement to help your side custom clearance.

Buyer Duty:

1.Provide us your correct contact information.

2.Custom clearance and pay for it .


1.If you satisfied and love our product,please leave 5-STAR positive feedback  to encourage us keep on !

2.Feedback is important to us ,we request that you can contact us before you give the neutral or negative feedback,We will handle with a please way,that makes double win between you and us.

Packaging Details
  • Unit Type: piece
  • Package Weight: 3.3kg (7.28lb.)
  • Package Size: 34cm x 32cm x 15cm (13.39in x 12.60in x 5.91in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 3.3kg (7.28lb.)
  • Package Size: 34cm x 32cm x 15cm (13.39in x 12.60in x 5.91in)
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