Digital Fiber Optical DAS supports 4G, 5G, and emergency services across 1800/2100/2600MHz bands. This 2Watt Digital Optical Repeater System with 33dBm Digital Optical dual band amplifier provides comprehensive signal distribution for LTE and 5G networks.

Distributed Antenna System (DAS) remains the most effective and reliable solution for in-building wireless coverage and capacity. As people spend most of their time in indoor environments, reliable wireless connectivity has become essential. Modern networks must handle both voice traffic and large data volumes from smartphones and connected devices, requiring advanced DAS systems with high Signal-to-Noise plus Interference Ratio (SNIR) for optimal throughput.

ATNJ integrates small cells and Wi-Fi solutions into our portfolio, providing complete end-to-end wireless network coverage solutions for various enterprise needs.

• 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 to multiple remote units.
• Expansion Unit (EU) - Provides additional fiber ports and cascading capability, enabling scalable DAS architecture for large venues or high-rise buildings.
• Network Management System (NMS) - Software platform for remote monitoring, fault diagnosis, and real-time adjustment of each component, ensuring high system reliability.

• Low signal loss over long distances - Digital fiber optic repeaters transmit 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 addition or reconfiguration of remote units
• Easy integration with existing networks - Supports CPRI/eCPRI interfaces and hybrid deployment

Shenzhen A T N J Communication Company Overview

Located in Guangming District Shenzhen, Shenzhen A T N J Communication 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 projects for various RF equipment, wireless repeaters, multi-frequency DAS systems, and remote network management solutions. Our digital repeaters support up to 12 subbands simultaneously with local and remote control and monitoring, serving signal operators and communication integrators worldwide.

Company Facilities and Manufacturing

Our product field extends to Public Safety and low-altitude economic construction applications, including public and private network digital multi-subband repeaters, integrated base stations, and advanced RF technologies. We continue to develop easier-to-use, more functional, and intelligent RF products.