Shenzhen Atnj Communication Technology Co., Ltd.
                                                                                                           
Verified Supplier
16 Years
Since 2010
Menu

65dB Tri-Band Cell Phone Signal Amplifier 850MHz 1800MHz 2100MHz for 2G 3G 4G Networks

Price Negotiable
Price: USD+315---330+kit
MOQ: 5Pcs
Delivery Time: 3-5 work days
Brand: ATNJ
Product Description
Product Overview
The 65dB Tri-Band Cell Phone Signal Amplifier is a professional-grade solution designed to enhance cellular connectivity in areas with weak signal coverage. Operating across 850MHz, 1800MHz, and 2100MHz frequency bands, this amplifier supports 2G, 3G, and 4G networks to eliminate dropped calls and improve data transmission.
Key Features
  • 65dB maximum gain with 17dB output power for strong signal amplification
  • Tri-band coverage: 850MHz, 1800MHz, and 2100MHz frequencies
  • Covers 500-3000m² area depending on building structure
  • Low power consumption with compact design for easy installation
  • Automatic Gain Control (AGC) prevents over-saturation and maintains voice quality
  • Supports all cellular devices for both voice and data transmission
  • IP40 rated for reliable operation in various environmental conditions
  • MTBF exceeding 50,000 hours for long-term reliability
Technical Specifications
Parameter Specification
Frequency Bands 850MHz, 1800MHz, 2100MHz
Maximum Gain 65dB ± 2dB
Maximum Output Power 17dB ± 2dB
Noise Figure ≤ 6dB
VSWR ≤ 2.0
Power Supply AC 90-240V, DC 5V/6A
Operating Temperature -10°C to +55°C
Humidity < 90%
RF Connector N-F
Operation Principle
The repeater functions as a relay between the base station (BTS) and mobile devices. It captures the strongest available signal via the donor antenna, amplifies it linearly, and retransmits through the indoor distribution system to areas with weak or no coverage. The system operates bidirectionally, amplifying both uplink and downlink signals to ensure seamless communication.
Documentation
For detailed technical specifications and installation guidelines, download our comprehensive product documentation:
Product Images
ATNJ 2G 3G 4G tri-band 900/1800/2100MHz phone signal booster repeater with LCD displays ATNJ signal booster internal components and construction ATNJ cellular signal amplifier connectivity diagram ATNJ tri-band repeater installation setup and antenna placement ATNJ signal booster compact design and front panel indicators

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

Request A Quote

Please check your email address.
Your message must be at least 20 characters.