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900MHz 1800MHz 2100MHz Multi Band Repeater

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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900MHz 1800MHz 2100MHz Multi Band Repeater

900MHz 1800MHz 2100MHz Multi Band Repeater
900MHz 1800MHz 2100MHz Multi Band Repeater 900MHz 1800MHz 2100MHz Multi Band Repeater 900MHz 1800MHz 2100MHz Multi Band Repeater

Large Image :  900MHz 1800MHz 2100MHz Multi Band Repeater

Product Details:
Place of Origin: China
Brand Name: ATNJ
Certification: CE,ROHS,CCC,TUV,BV, ISO
Model Number: AS-900/1800/2100/H
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: USD+315---330+kit
Packaging Details: Standard neutral packing,48x46x18cm(1 kit),
Delivery Time: 3-5 work days
Payment Terms: T/T, Western Union,Paypal,Alibaba,Bank transfering.
Supply Ability: 1000+unit+per day.

900MHz 1800MHz 2100MHz Multi Band Repeater

Frequency Range: Band1 2100MHz+Band8 900MHz+Band 3 1800MHz Device Gain: 80dB
Output Power: 27±3dBm Color: Black
Power Supply: AC 110~220V±20%, 50/60Hz(AC 220V/ DC5V/2A Power Adapter) Inter-Modulation Attenuation ACPR: ≤ -40dBc / 30kHz (measured Under Rated Output Power)
Warranty: 1 Years Packing Size: 48x46x18cm

2100MHz Multi Band Repeater


80dB 900MHz Multi Band Repeater


Multi Band 900MHz Signal Booster

900MHz 1800MHz 2100MHz Multi Band Repeater


Cellular Booster 900/1800/2100MHz Multi Band Repeater 2G 3G 4G Mobile Signal Amplifier


Selling Point


1. Smart LCD: Show the real-time signal strength.


2. Sleeping Mode: When no user calls, the device works in Sleeping mode, so as to achieve the purpose of energy saving.


3. ALC(Automatic Level Control): Automatically adjust the output gain down to optimal figure while the output gain is above the optimal figure by the ALC circuit, this can greatly optimize the calling and data transfer quality.


4. AGC (Automatic Gain Control) : When the downlink output signal is too strong or self-oscillated, booster can automatically reduce the gain and reduce the interference signal.


5. MGC (Manual Gain Control): In order to install the booster conveniently, all frequency band of the booster have the Gain attenuation adjustment function, the adjustment scope is 0-27dB.


Technical Specifications:




Frequency Range (Customers to Choose)


890-915MHz, 1710-1785MHz, 1920-1980MHz


935-960MHz, 1805-1880MHz, 2110-2170MHz

Frequency Bandwidth (3dB Bandwidth)

25MHz, 75MHz, 60MHz



Automatic gain control (Step Attenuation)

31dB @ 1dB/ Step

Auto Gain Control

20dB Min.

Output Power(Customers to Choose)


Spurious Emission

≤ -15dBm/30kHz

9kHz~1GHz: ≤ -36dBm/30kHz

1GHz~12.75GHz: ≤ -30dBm/30kHz

Inter-Modulation Attenuation ACPR

≤ -40dBc / 30kHz (measured under rated output power)

In-band Ripple

≤ 5dB



I/O Impedance

50 Ω

Noise Figure

≤ 5dB

System Delay

≤ 5μs

RF Connector(Customers to Choose)

N -Type(Female)

Operating Temperature

Operation: - 10°C ~ + 55°C / Storage: -20°C ~ +60°C

Power Supply

AC 110~220V±20%, 50/60Hz(AC 220V/ DC5V/2A power adapter)


≤8 kg(Net)

Alarm Monitoring System

Alarm for uplink self-oscillation

Indication LED

Power supply

Further detail pls click here for downloading the products specification:

900+1800+2100 A013 Signal Repeater.pdf

Product Description



Model No : AS-900/1800/2100/H

Network support : GSM 2G + DCS 2/4G +WCDMA 3/4G

Gain : 80dB
Connector Type : N-female connector


900MHz 1800MHz 2100MHz Multi Band Repeater 0900MHz 1800MHz 2100MHz Multi Band Repeater 1900MHz 1800MHz 2100MHz Multi Band Repeater 2900MHz 1800MHz 2100MHz Multi Band Repeater 3900MHz 1800MHz 2100MHz Multi Band Repeater 4900MHz 1800MHz 2100MHz Multi Band Repeater 5900MHz 1800MHz 2100MHz Multi Band Repeater 6



Installation Approaches


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


2. Connect outdoor antenna to “outdoor” port in repeater nachine through cable;


3. Connect indoor antenna(s) to “indoor” port in repeater machinethrough cable also;


4. Plug power adaptor into AC power socket and finish installation.




Technique supporting:


1. If still no signal receipt after activated repeater,please check if outdoor antenna point to signal tower or elsewhere have strong signal and check if strength achieve -70dBm.


2. If cannot call out,please adjust the direction of outdoor antenna.


3. If the strength is not steady,please check if outdoor and indoor antennas are too close;please ensure the outdoor antenna and indoor antenna have distance of 20meters at least,with a wall between and not in a same horizontal line.



900MHz 1800MHz 2100MHz Multi Band Repeater 7900MHz 1800MHz 2100MHz Multi Band Repeater 8900MHz 1800MHz 2100MHz Multi Band Repeater 9



The repeater makes the signal stronger in places with poor signal coverage such as:


1) Underground areas: basements, parking lots, tunnels;


2) Other places where cellular signal is shielded by metal or concrete walls: offices, supermarkets, cinemas, hotels;


3) Places distant from the BTS like private houses.



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Q1: Do you have CE or any other certification?
A: Yes,we CE, ISO, ROHS and CCC certification,etc.

Q2: How about gain and output power of your device?
A: Different models, gain and output power are different,for more details, please contact us.

Q3: How long is warranty period?
A: The warranty is 12 months. And we offer 7*24 technical support

Q4: What's your device lifespan?
A: Normally our device can be used 5-10 years.

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.

Q7: How about gain and output power of your device?
A: Different models, gain and output power are different,for more details, please contact us.

Contact Details
Shenzhen Atnj Communication Technology Co., Ltd.

Contact Person: Angel Wang

Tel: 15989511440

Fax: 86-755-86136774

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