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70dB 3G Signal Booster

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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70dB 3G Signal Booster

70dB 3G Signal Booster
70dB 3G Signal Booster 70dB 3G Signal Booster

Large Image :  70dB 3G Signal Booster

Product Details:
Place of Origin: China
Brand Name: ATNJ
Certification: CE,ROHS,CCC,TUV,BV, ISO
Model Number: AS-P
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: USD+40---49+kit
Packaging Details: Standard neutral packing,54x19x16cm(1 kit), 6kits as 1 carton(53x49x42cm)
Delivery Time: 3-5 work days
Payment Terms: T/T, Western Union,Paypal,Alibaba,Bank transfering.
Supply Ability: 1000+unit+per day.

70dB 3G Signal Booster

Device Gain: 70dB Output Power: 17dbm
Frequency Range: 1850-1910MHz,1930-1990MHz Color: Black ,White Cuztomized
Interface:: SMA/F Material: Alloy ,Plastic
ALC+AGC Intelligent Function: Done Warranty: 36 Months
High Light:

TUV 70dB 3G Signal Booster


17dbm 1900MHz 3G Signal Booster


70dB Cellular Repeater Amplifier

70dB 3G Signal Booster


Cellular Repeater Amplifier PCS1900MHz Mobile Signal Booster 2G 3G


  A cell phone booster is a device that gathers the signal from the air, usually through an outdoor unit (such as an antenna), and “conveys” this signal to an indoor unit that is supposed to boost the signal. This conveying is done through a wired connection between the outdoor antenna and the indoor unit. The indoor cell phone booster, in turn, is provided with external power through a power outlet and has a complex circuitry that allows it to amplify the weak signal that has been received by the outdoor antenna. The indoor unit then sends the electrical signal to the indoor antenna that is directly connected to the unit, and the antenna converts the electrical signal to waves of the same frequency as were received by the outdoor unit. This, the frequency range of the waves does not change, and the cell phones do not notice any difference, except for a dramatic increase in the signal power that they are receiving.


  Thus, as we can see, cell phone signal boosters are devices that literally boost the cell phone signal that you are receiving. This is done through some complex circuitry that works through the use of external power and boosts the signal to usable levels.




Specifications Parameters
Frequency Range (Customers to Choose) Uplink 1920-1980MHz
Downlink 2110-2170MHz
Frequency Bandwidth (3dB Bandwidth) 75MHz
Gain 70dB
Automatic gain control (Step Attenuation) 31dB @ 1dB/ Step
Auto Gain Control 20dB Min.
Output Power(Customers to Choose) 17±3dBm
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 ≤ 3dB
VSWR <=2
I/O Impedance 50 Ω
Noise Figure ≤ 5dB
System Delay ≤ 5μs
RF Connector(Customers to Choose) SMA(F)
Operating Temperature  - 10°C ~ + 55°C 
Dimensions 165*130*40 (mm)
HS Code 8543709200



Products Spect:


1,Intelligent to guide the installation with LCD
2,Real time display the signal strength.
3,Automatic dormancy when no user make the calling
4,Automatic alarm when installation mistake and provide the according solution
5,Automatic adjust the system gain to avoid the repeater self-excitation
6,initiative reminding when the device was damaged.


Model No :AS-1900
With ALC AGC Function

Can control gain automatically. Avoid base station interference

(Band 2) 1900MHz -- Uplink frequency: 1850-1910MHz /Downlink frequency : 1930-1990MHz
Network support :2G, 3G
Gain :70dB
Power Supply :AC110V~220V;DC+5V/2A
Connector Type: N-female connector.




Product Images




- Strong output power, wide coverage area .

- LCD display signal in real time .

- High gain can support multiple loads .

70dB 3G Signal Booster 0

ATNJ New sale high gain 1800MHz 2G/4G mobile signal booster , using for office, home, apartments,etc.ATNJ New sale high gain 1800MHz 2G/4G mobile signal booster , using for office, home, apartments,etc.70dB 3G Signal Booster 3





● We will send your parcel as soon as possible after payment confirmed, Within 48 hours for normal,Except weekend and Chinese holidays.
● Please provide your correct address,full name,and zip code.
● We generally would declare the parcel with lower value to avoid or lessen the Customs Tax.Import Tax is not including in the price. When it happens, it is buyers responsibility to pay for the tax and custom clearance.
● 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.

● If you are satisfied with our service and product,we would be very appreciated that you put us five stars and positive review. You could also recommend it to people who needs it.Thank you very much.





1. What is your advantage ?

---Your inquiry will be replied in 24hours .

---Well-trained and experienced staffs to answer all your inquires in fluent English .

---OEM&ODM, for any of your customized products we can help you to design and put into product .

---All our products with 12months guarantee .


2. What is our Payment methods ?


We agree T/T, Western Union, PayPal.L/C for old customers .

3. What is our Shipping & Trade terms ?


Shipping By sea, air, or UPS, FEDEX, EMS, DHL, etc .


Delivered time: 1-3 business days for sample, 10-25 days for mass order .

Trade terms: EXW, FOB , CIF etc .


4. What is our Warranty and Certificates ?

Our warranty is 12 months .

We have CE, ROHS, CCC certificates .


5. What is your MOQ ?

1pc sample test is welcomed .

Contact Details
Shenzhen Atnj Communication Technology Co., Ltd.

Contact Person: Emmy Song

Tel: +8618285424282

Send your inquiry directly to us (0 / 3000)