Shenzhen Atnj Communication Technology Co., Ltd.
                                                                                                           
Verified Supplier
16 Years
Since 2010
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GDW 2G 3G 4G Tri-Band Mobile Signal Booster 20.4×16.4×4.4cm with 65dB Gain and 20dBm Output Power

Price Negotiable
Price: USD+240---260+kit
MOQ: 5Pcs
Delivery Time: 3-5 work days
Brand: ATNJ
Product Description
Product Overview
The GDW 2G/3G/4G Tri-Band Mobile Signal Booster provides an affordable solution for indoor signal coverage problems caused by building obstacles and signal attenuation. This intelligent repeater acts as a relay between base stations and mobile devices, amplifying signals to eliminate weak or blind coverage areas.
Technical Specifications
Frequency BandUplinkDownlink
GSM 900MHz890-915MHz935-960MHz
4G 1800MHz1710-1785MHz1805-1880MHz
3G 2100MHz1920-1980MHz2110-2170MHz
Performance Parameters
Maximum Gain68dB±2dB (UL) / 65dB±2dB (DL)
Output Power17dB±2dB (UL) / 20dB±2dB (DL)
BandwidthWide Band (0.2-20MHz adjustable)
Noise Figure≤ 6dB
VSWR≤ 2.0
Operating Temperature-10°C to +55°C
Power SupplyAC 90-240V, DC 5V/3A
Dimensions20.4 × 16.4 × 4.4 cm
Weight0.8 kg
How It Works
  1. Receives strong outdoor signal from cellular tower via donor antenna
  2. Transmits signal through coaxial cable to repeater unit
  3. Signal booster amplifies and enhances the received signal
  4. Distributes improved signal indoors via indoor antenna system
Mobile signal booster operation diagram showing signal flow from tower to indoor coverage Signal booster installation setup with outdoor and indoor antenna placement
Key Features & Advantages
  • Intelligent LCD display for installation guidance and real-time signal strength monitoring
  • Automatic dormancy mode when no calls are active to conserve energy
  • Self-diagnostic system with automatic alarm for installation errors
  • Automatic gain adjustment to prevent system self-excitation
  • Proactive damage detection and notification system
  • Customizable bandwidth from 0.2 to 20MHz
  • 5G bandwidth support up to 100MHz (customizable)
  • Optional WiFi monitoring and network management system
  • Multiple appearance customization options available
Tri-band signal booster unit front view with LCD display Signal booster internal components and circuit board Mobile signal booster side view showing connectors and ports
Package Contents
  • Tri-Band Booster Base Unit
  • AC Power Cord
  • Outdoor Panel Antenna
  • Indoor Panel Antenna
  • 15+5 Meters White Coaxial Cable
Complete signal booster kit with all components displayed Individual components of mobile signal booster system Signal booster accessories including cables and mounting hardware
Installation Support & Troubleshooting
Common Installation Issues
  • Weak signal: Ensure outdoor antenna is properly aligned with signal tower and signal strength reaches -70dBm
  • No signal: Verify power adapter connection and check all RF connectors
  • Unstable signal: Maintain minimum 10-meter separation between outdoor and indoor antennas with physical barrier
  • Signal degradation: Apply waterproof glue to outdoor connectors to prevent moisture damage
Manufacturer Support
We are the original manufacturer offering comprehensive OEM/ODM services, technical support 24/7, and a 3-year product warranty.

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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