Shenzhen Atnj Communication Technology Co., Ltd.
                                                                                                           
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16 Years
Since 2010
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2G 4G Dual Band GSM Signal Booster 70dB Gain 900/1800MHz Cellular Repeater Amplifier

Price Negotiable
Price: USD+75---85+kit
MOQ: 5Pcs
Delivery Time: 1-3 work days
Brand: ATNJ
Product Description
Product Overview
This 2G/4G dual band DCS GSM signal booster is a professional-grade cellular repeater amplifier designed to enhance mobile network coverage in areas with weak signals. Operating on 900/1800MHz frequencies with 70dB gain, it provides reliable signal amplification for both voice and data services.
Key Features
  • Intelligent installation guidance with LCD display
  • Real-time signal strength monitoring
  • Automatic dormancy when no active calls
  • Self-diagnostic alarm system with troubleshooting guidance
  • Automatic gain control to prevent system oscillation
  • Proactive damage detection and notification
Technical Specifications
ParameterSpecification
Frequency RangeUplink: 890-915MHz, 1710-1785MHz
Downlink: 935-960MHz, 1805-1880MHz
Frequency Bandwidth25MHz & 75MHz
Gain70dB
Automatic Gain Control20dB Min.
Output Power20dBm
Noise Figure≤ 5dB
Operating Temperature-10°C to +55°C
Power SupplyAC 110-220V±20%, 50/60Hz
Dimensions165×130×40 mm
Weight≤0.8 kg
Performance Benefits
The ALC (Automatic Level Control) function prevents excessive signal output and interference. With 70dB gain and 20dBm maximum power, this amplifier delivers faster 4G internet speeds, clear voice calls, and reduced mobile phone radiation by maintaining stable signal connections.
Application Areas
Ideal for locations with poor signal coverage including:
  • Underground areas: basements, parking lots, tunnels
  • Signal-shielded spaces: offices, supermarkets, cinemas, hotels
  • Remote locations distant from cellular base stations
Package Contents
  • One dual band signal booster
  • Two indoor antennas
  • One outdoor antenna
  • 20-meter and 5-meter cables
  • User manual
  • Power adapter
Product Documentation
Product Images
LCD Display showing 2G 3G 4G Dual Band Repeater signal strength indicators Mobile Signal Booster unit front view with LED indicators Mobile Signal Booster unit side view showing connectors Mobile Signal Booster internal components and circuit board Mobile Signal Booster installation diagram showing antenna placement Mobile Signal Booster package contents including antennas and cables Mobile Signal Booster technical specifications label Mobile Signal Booster in use with connected antennas Mobile Signal Booster performance comparison chart Mobile Signal Booster complete kit with all accessories Mobile Signal Booster application in commercial building Mobile Signal Booster signal coverage area diagram Mobile Signal Booster quality control testing process Mobile Signal Booster compact design and portability features

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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