Real time output show 20dBm GSM900 LTE 4G 2100MHz Dual Band Smart Mobile Signal Booster 2G 3G 4G Repeater

Name: Real time output show 20dBm GSM900 LTE 4G 2100MHz Dual Band Smart Mobile Signal Booster 2G 3G 4G Repeater
Brand: Shenzhen Atnj Communication Technology Co., Ltd.
SKU: A021-900/2100
Price: 98.00 USD
Availability: InStock

Basic Properties

Place of Origin: China

Brand Name: ATNJ

Certification: CE,ROHS，CCC，TUV,BV， ISO

Model Number: A021-900/2100

Trading Properties

Minimum Order Quantity: 5Pcs

Price: USD+86---110+kit

Payment Terms: T/T, Western Union,Paypal,Alibaba,Bank transfering.

Supply Ability: 1000+unit+per day.

850MHz Dual Band Repeater

CDMA Dual Band Repeater

2G 3G 4G Mobile Signal Booster

Specifications

900MHz Frequency Range:	Band8: UL 890-915MHz; DL: 935-960MHz	2100MHz Frequency Range:	Band1: UL 1920-1980MHz; DL: 2110-2170MHz
Connector:	Two N Female Output	Certification:	CE ROHS CCC TUV ISO
Trademark:	ATNJ	Products type:	Dual Band 900MHz And 2100MHz
High Light:	ROHS Dual Band Repeater , TUV Dual Band Repeater , TUV 2G 3G 4G Repeater

Product Description

Real time output show 20dBm GSM900 LTE 4G 2100MHz Dual Band Smart Mobile Signal Booster 2G 3G 4G Repeater

Customized Dual Output 900+2100MHz mobile signal booster 2G 3G cellular amplifier

Product Description

A mobile phone signal repeater provides the ultimate solution in any area where cellular communications can not work well due to leak of signals. The repeater device features easy installation & operation, build-in indoor antenna and no interference. It could also improve indoor electromagnetism environments, protract cellular battery life and reduce radiation of cellphones. A mobile phone repeater is ideal for house, home, office use.

Feature:

- Strong output power, wide coverage area

- LCD display signal in real time

- High gain can support multiple loads

Technical Specifications

Specifications		Parameters
Frequency Range (Customers to Choose)	Uplink	890-915MHz, 1920-1980MHz
	Downlink	935-960MHz, 2110-2170MHz
Frequency Bandwidth (3dB Bandwidth)		25MHz&60MHz
Automatic gain control (Step Attenuation)		31dB @ 1dB/ Step
Auto Gain Control		20dB Min.
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)		N(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)
Dimensions		16513040 (mm)
Weight		≤0.8 kg(Net)
Alarm Monitoring System		Alarm for uplink self-oscillation
Origin		Shenzhen

Further detail pls click here for downloading the products specification:

900+2100MHz A021 Mobile Signal Repeater.docx.pdf

Real time output show 20dBm GSM900 LTE 4G 2100MHz Dual Band Smart Mobile Signal Booster 2G 3G 4G Repeater 2

Real time output show 20dBm GSM900 LTE 4G 2100MHz Dual Band Smart Mobile Signal Booster 2G 3G 4G Repeater 3

We are manufacturer, and have our own factory.

FAQ:

Q1. Are mobile signal boosters safe?
CE and RoHS approvals guarantee that the product does not contain any hazardous substances.

Q2. What should I do if I don't know about frequency in my country?

Please feel free to contact us with your inquiry, we will find the frequency you need and address your problems.

Q3. Do you accept OEM/ODM order?
Yes, we can customize the brand logo, colors, and frequencies.

Q4.Shipment Date

Sample	3-5 business days
<20 pcs	7-15 days
20-200 pcs	15-24 days
>200 pcs	Negotiate

Q5: Delivery Date of the sample by DHL/FedEx

USA/Canada/Europe/Asia	3-5 days
Middle East/Latin American	5-7 days
African	3-7 days

Q6.Payment Method
T/T, Western Union, Paypal, and Credit Card are available, but we suggest paying by Alibaba Trade Assurance, the most favor, and security method.
*Other methods please contact us with more details.

Overall Rating

5.0

★★★★★

Based on 50 reviews recently

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All Reviews

A

ATNJ Digital 900 1800 2100 Band Selective RF Repeater with Wifi Control for Cellphone

Belgium Nov 9.2025

★★★★★
★★★★★

It works great, the frequency can be adjusted to Vodafone correctly,and LTE speed goes fast.
A

ATNJ Digital 900 1800 2100 Band Selective RF Repeater with Wifi Control for Cellphone

Belgium Nov 6.2025

★★★★★
★★★★★

Installation was much simpler than expected! Following the manual step by step, I managed it myself, and the signal was immediately full, it felt so rewarding
A

ATNJ Digital 900 1800 2100 Band Selective RF Repeater with Wifi Control for Cellphone

Italy Jul 13.2025

★★★★★
★★★★★

I have bought these products before, and I have had no problems, they are of very good quality.