Low Noise Low Loss And Long distance Multi-band Fiber Optical DAS 800/900/1800/2100MHz

Digital Fiber Optical DAS supports 4G, 5G and Emergency Services across 800/900/1800/2100MHz frequency bands. This 2Watt Digital Optical Repeater System with 33dBm output power provides reliable signal distribution for indoor wireless coverage and capacity.

Distributed Antenna System (DAS) remains the most effective solution for in-building wireless coverage. As wireless networks carry increasing data volumes from smartphones and connected devices, DAS systems require high Signal-to-Noise plus Interference Ratio (SNIR) to achieve optimal throughput.

• Master Unit (MU) / Head-End Unit - Converts RF signals from base stations into optical signals for long-distance transmission over fiber, supporting multiple bands and operators
• Remote Unit (RU) - Converts optical signals back to RF for indoor or tunnel coverage, featuring low noise figure and high output power
• Optical Distribution Network (ODN) - Includes single-mode fiber cables, optical splitters, and patch panels that distribute signals with minimal loss
• Expansion Unit (EU) - Provides additional fiber ports and cascading capability for scalable DAS architecture
• Network Management System (NMS) - Software platform for remote monitoring, fault diagnosis, and real-time system adjustment

• Low signal loss over long distances - Transmits RF signals over several kilometers with minimal attenuation
• Multi-band and multi-operator support - Simultaneously handles 4G/LTE, 5G NR, and public safety bands
• High signal quality with low noise figure - Digital processing ensures excellent SNR and EVM
• Scalable and flexible architecture - Easy expansion of capacity and coverage
• Easy integration with existing networks - Supports CPRI/eCPRI interfaces and hybrid deployment

Shenzhen A T N J Communication, located in Guangming District Shenzhen, is a professional RF manufacturer with 16 years of experience in R&D, production, manufacturing, sales, and technical services.

Our main products include Digital LTE/NR series repeaters, SDR core boards, Passive devices, Digital DAS systems, and technical solutions for Public and Private network base stations. We undertake OEM, ODM services and provide equipment for indoor and outdoor signal coverage projects.

Company Overview

Company Facilities and Manufacturing

Our digital repeaters reach 12 subbands simultaneously with local and remote control+monitor capabilities, supplied to signal operators and communication integrators worldwide. We provide signal coverage solutions for residential areas, office buildings, supermarkets, basements and rural areas.