Home ProductsTri Band Repeater

Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz

China Shenzhen Atnj Communication Technology Co., Ltd. certification
China Shenzhen Atnj Communication Technology Co., Ltd. certification
Customer Reviews
Good service and fast delivery

—— Aki Vaattovaara,Sweden

It arrived in time I am very satisfied with the support. The product si in very good conditions. I proved it and works very well.

—— JC Saavedra Libia,Peru

I an very satisfied with the Quality of the product. Also the miss that support me is very kind. she resolved all my doubts perfectly. the product arrived at time as usual.

—— JC Saavedra Libia,Peru

Ms Anne Wang works hard to provide very good service for customers. A pleasure to deal with. Product is as described and good value for money.

—— Lindsay Pettigrew,Australia

Excellent product as describe. Very good seller ! 100% recommended, 100% satisfied ! shipping very fast to Cambodia.

—— loem kom,Cambodia

I have received the repeater in 5/6 days, it is a robust case repeater, it looks nice, and it work perfectly. I suggest this brand repeater. good work

—— andrea cristofanini,Italy

получил товар. качество и параметры сответствуют описанию. продавец молодец!

—— akbar karaev,Uzbekistan

Super fast delivery and superb service/help from supplier. I haven't had a chance to try out the product but I am confident it will work fine. If not, the supplier is really helpful and I am sure he will assist me with futher installation details

—— Attila Kinkopf,United States

I haven't used the product yet but it looks like a quality product. Wave Luo was very helpful, thank you very much!!!!

—— Shephard Mack,South Africa

ATNJ, You got good products with good services, fast and easy to communicate.

—— Borin SIM,Cambodia

Gracias excelente productos y el envío muy rápido


Very technical and very welll organized and professional. Andrew has been a very helpful salesperson

—— gabriel haddad,Venezuela

Excelent product antennas and power.. its good, working very goog thanks ATNJ,

—— CARLOS GREGORIO,United States

Let’s be honest, the quality of my Vodafone mobile signal at home always left much to desire. I just was too lazy to do anything with it. I was absolutely satisfied with the rates and the quality of the signal that I had everywhere and my own house was an exception. However, the coronavirus pandemic changed everything. I started to spend much more

—— Ali , Spain

I bought this booster for my apartment because I was absolutely dissatisfied with the power of GSM and 4G signals that I had there. But now the situation has changed. Thank you for this booster, I finally don’t feel isolated when I stay at home alone.

—— Abdul Mohammed,Germany

I think that’s a very nice solution for those who suffer from problems with voice services and mobile internet and do not want to create any antennas or smth like that themselves. The price is absolutely fair and the quality is amazing.

—— Lena W.,Finland

I was very happy to see the discount that you offered. I know that quite often companies make discounts on goods that are not popular but in this case, I see that the situation is quite opposite. I like that this device is able to improve calls and the internet speed at the same time.

—— Giulia M.,Austria

Thank you! The booster is super cool for a private house. All the rooms are now covered with the improved signal. Now I can’t understand why we haven’t bought it earlier.

—— Nadine Nacht ,Germany

It’s a very cool booster! Thank you, dear team, for your attention to your clients’ needs and the prices that you offer. You are the best, ATNJ

—— Natalia L.,Norway

My 3G and GSM connection used to leave much to desire. But with m new booster I have practically forgotten all these problems. I really like that this device is so compact but so powerful. Thanks, guys, for your amazing work and fast delivery.

—— Goran N. ,Sweden

I can’t understand why I bought this repeater only 2 months ago and not earlier. That’s a very useful device for those who live in a rural area like my family. The improved quality of connection has significantly improved the quality of our life.

—— Lars M. ,United States

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Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz

Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz
Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz
Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz

Large Image :  Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz

Product Details:
Place of Origin: China
Brand Name: ATNJ
Certification: CE,ROHS,CCC,TUV,BV, ISO
Model Number: AT-MS-850/1700/1900
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: USD+2700--2800+kit
Packaging Details: Standard neutral packing
Delivery Time: 3-5 work days
Payment Terms: T/T, Western Union,Paypal,Alibaba,Bank transfering.
Supply Ability: 1000+unit+per day.

Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz

850MHz Frequency Range: 824-849MHz / 869-894MHz 1700MHz Frequency Range: 1710-1755MHz / 2110-2155MHz
1900MHz Frequency Range: 1850-1910MHz / 1920-1990MHz Material: Zinc Alloy ,Plastic
Support Network: 2G, 3G, 4G, Voice Products Type: Mobile Tri Band Repeater, 4g Network Booster
High Light:

850MHz 2G 3G 4G Mobile Signal Booster


1700MHz Mobile Signal Booster


1900MHz Triple Band Repeater

Tri Band 2G 3G 4G Mobile Signal Booster 850MHz 1700MHz 1900MHz


2G 3G 4G 90dB Gain 850 / 1700 / 1900MHz Tri Band Repeater 5 Watt Customized Signal Amplifier


Product Detail:

Model No : AT-MS-850/1700/1900


With ALC AGC Function

Can control gain automatically. Avoid base station interference


(Band 5) 850MHz -- Uplink frequency : 824 - 849MHz / Downlink frequency : 869 - 894MHz
(Band 4) 1700MHz -- Uplink frequency : 1710 - 1755MHz / Downlink frequency : 2110 - 2155MHz

(Band 2) 1900MHz -- Uplink frequency : 1850 - 1910MHz / Downlink frequency : 1930 - 1990MHz

Network support : 2G 3G 4G Voice

Gain : 90dB 


Output power : 5watt 

Power Supply : AC110V~220V; DC+24V 5A 

Connector Type : N-F 


Wide Range .


Single Band Repeater with AGC/MGC

Device Model


Frenquecy Range 1

UplinK: 824-849MHz Downlink: 869-894MHz

Frenquecy Range 2

UplinK: 1710-1755MHz Downlink: 2110-2155MHz

Frenquecy Range 3

UplinK: 1850-1910MHz Downlink: 1930-1990MHz

Working System

Band5 850MHz; Band4 1700MHz; Band2 1900MHz



Device Output Power



Wide Range

Ripple in Band


Noise Figure @ Max.Gain






Power Supply


Power Comsumption


Impedance Matching


Mechanical Specification

RF Connector



Heatsink Convection Cooling



Net Weight


Installation Type

Wall Installation or Desk

Environment Conditions




Operating Temperature


Further detail pls click here for downloading the products specification:

5W 850+1700+1900 Tri Band Repeater.pdf


Free Frequency Combination:
Band 800 : Uplink:824 - 849 MHz Downlink : 869 - 894 MHz (B20 800 available )
Band 900 : Uplink:880 - 915 MHz Downlink : 925 - 960 MHz
Band 1800 : Uplink:1710 - 1785 MHz Downlink : 1805 - 1880 MHz
Band 1900 : Uplink:1850 - 1910 MHz Downlink : 1930 - 1990 MHz
Band 2100 : Uplink:1920 - 1980 MHz Downlink : 2110 - 2170 MHz
Band 2300 : Uplink:2305 - 2315 MHz Downlink : 2350 - 2360 MHz
Band 2600 : Uplink: 2500 - 2570 MHz Downlink : 2620 - 2690 MHz

Band Options : Single Band, Dual Band, Tri Band, Four Band, Free combinations

Output Power : 5W/10W/20W

Power Supply : AC adapter

Size : 308*219* 135mm
Weight : 7.0kg


Product Pictures





ATNJ New sale high gain 1800MHz 2G/4G mobile signal booster , using for office, home, apartments,etc.





● We will send your parcel as soon as posiible after payment confirmed, Within 48 hours for normal,Except weekend and Chinaese holidays.

● Please provide your correct address,full name,and zip code.

● Shipping is out of our control. If you want to get the product fast, please choose fast shipping methods, like EMS, UPS and DHL. If you find the package is beyond promised delivered time, please contact us, we will contact with the carriers and find out the reason.




● Please note that we always check and test the product twice before shipping and pack them well as far as possibel.If the product is broken at receiving,please contact us,we would resend you a new one.

● Three years gaurantee period for our booster,it is ioly 3 months for thr accessories.If the booster have any problems, please show us an video or some photos of your complete installation, we will help you. Please do not open dispute or leave negative feedback before contact us.we will reply you within 24 hours,except holiday.




Q1: Do you have CE or any other certification?

A: Yes,we CE, , ROHS certification,etc.


Q2: Can you give me a discount?

A: Please discuss with our sales.


Q3: How about gain and output power of your device?

A: Different models, gain and output power are different,for more details, please contact us.


Q4: How long is warranty period?

A: The warranty is 12 months. And we offer 7*24 technical support .


Q5: How many square meters can be covered?

A: For different models, the covered square meters are different.


Q6: Can I use your device in suburbs or remote areas?

A: Yes, as long as you can find a good signal source, our signal booster can help you solve signal problems in remote areas.


Contact Details
Shenzhen Atnj Communication Technology Co., Ltd.

Contact Person: Angel Wang

Tel: 15989511440

Send your inquiry directly to us (0 / 3000)