Long Distance Multi-band Digital Fiber Optical DAS System 700/900/1800MHz

Digital Fiber Optical DAS supports 4G, 5G, and emergency services across 700/900/1800MHz bands. This 2Watt Digital Optical Repeater System features 33dBm Digital Optical dual-band amplification for comprehensive signal distribution.

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 support both voice traffic and high-volume data from smartphones and connected devices, requiring sophisticated DAS designs 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 fiber transmission, 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 for minimal-loss signal distribution
• Expansion Unit (EU) - Provides additional fiber ports and cascading capability for scalable DAS architecture in large venues
• Network Management System (NMS) - Software platform for remote monitoring, fault diagnosis, and real-time component adjustment

• Low signal loss over long distances with minimal attenuation
• Multi-band and multi-operator support for 4G/LTE, 5G NR, and public safety bands
• High signal quality with low noise figure for excellent SNR and EVM
• Scalable and flexible architecture for easy capacity expansion
• Easy integration with existing networks and future-proof in-building solutions

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 product portfolio includes Digital LTE/NR series repeaters, SDR core boards, passive devices, Digital DAS systems, and technical solutions for public and private networks.

We provide OEM, ODM services and undertake projects for various RF equipment, wireless repeaters, multi-frequency DAS systems, and remote network management solutions for indoor and outdoor signal coverage projects.

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

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.