Shenzhen Atnj Communication Technology Co., Ltd.
                                                                                                           
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16 Years
Since 2010
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2G 3G 4G 900MHz 2100MHz Mobile Dual Band Repeater with 70dB Gain and LCD Display for 300sqm Coverage

Price Negotiable
Price: USD+70---85+kit
MOQ: 5Pcs
Delivery Time: 3 work days
Brand: ATNJ
Product Description
Product Overview

This 2G/3G/4G dual band mobile signal repeater operates on 900MHz and 2100MHz frequencies, featuring an LCD display for real-time monitoring and intelligent installation guidance. With automatic gain control and advanced signal processing, it provides reliable cellular signal enhancement for residential and small office environments.

Technical Specifications
ParameterSpecification
Frequency BandsBand 8 (900MHz): Uplink 890-915MHz, Downlink 935-960MHz
Band 1 (2100MHz): Uplink 1920-1980MHz, Downlink 2110-2170MHz
Network SupportGSM 2G + WCDMA 3G/4G
Gain70±2dB
Output Power17±3dBm
Frequency Bandwidth25MHz & 60MHz
Noise Figure≤ 5dB
Power SupplyAC 110-220V ±20%, 50/60Hz (DC+5V/2A adapter)
Connector TypeSMA Female
Dimensions165 × 130 × 40 mm
Weight≤ 0.8 kg (Net)
Operating Temperature-10°C to +55°C (Operation)
-20°C to +60°C (Storage)
Key Features
  • LCD display for real-time signal strength monitoring
  • Automatic gain control (ALC/AGC) with 31dB step attenuation
  • Intelligent installation guidance system
  • Automatic dormancy when no calls are active
  • Self-excitation prevention and automatic alarm system
  • WiFi monitoring and control capability
  • Covers 100-300 sqm (standard kit), expandable to 800+ sqm
How It Works
1. Receives Signal

The outdoor antenna captures available cellular signal and delivers it to the booster unit.

2. Boosts Signal

The amplifier processes and strengthens the signal, acting as a relay between your devices and the cell tower.

3. Broadcasts Signal

Enhanced signal is distributed indoors, improving call quality and data connectivity.

Installation Requirements

Ensure your location has GSM 900MHz and WCDMA 2100MHz coverage with at least 2 bars of outdoor signal before installation. The repeater requires existing outdoor signal to improve indoor reception.

Documentation

Product Images
2G 3G 4G mobile signal repeater front view with LCD display Mobile signal amplifier internal components and circuitry Signal repeater side view showing connectors and ports Close-up of SMA female connectors on repeater unit Mobile signal booster installation diagram LCD display showing real-time signal strength indicators Power supply and adapter specifications for signal repeater Complete mobile signal repeater kit with accessories Packaged mobile signal amplifier ready for shipping Technical specifications and frequency band details Mobile signal repeater application scenarios and coverage areas

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen Atnj Communication Technology Co., Ltd.
Location Floor 12, Building A, Rd Jiangshi, Quanju High-Tech Industry Park, Guangming District, Shenzhen, Guangdong Province, China
Contact Person Wave Luo

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