Record-Breaking 600m Altitude: Dagong Technology’s Tethered UAV System Redefines Emergency Communication in Extreme Disasters

 BEIJING, April 27, 2026— In the critical "golden hour" of disaster relief, where every second dictates the margin of survival, traditional communication infrastructure often falls victim to catastrophic destruction. Today, Beijing Dagong Technology Co., Ltd. announces a monumental leap in emergency response capabilities: its next-generation tethered UAV emergency communication system has successfully achieved a record-breaking 600-meter operational altitude on a 2,000-meter high-altitude plateau. This engineering marvel, recently validated in extreme disaster zones and subsequently honoured by the National Museum of China, is fundamentally rewriting the rules of airborne communication networks.

Validated in the Extreme: From Plateaus to Blizzard Zones
The relentless evolution of Dagong Technology’s tethered drone systems was recently battle-tested during the 2025 Tibet earthquake rescue. Operating in an unforgiving high-altitude environment, the tethered UAV ascended to 200 meters, establishing a vital satellite-linked emergency communication lifeline for the Quiluo Township, ensuring uninterrupted 24-hour connectivity for stranded residents. Simultaneously, during the severe blizzard disasters in Shanxi Province, Dagong’s systems collaborated seamlessly with other emergency apparatus to maintain network stability across ice-covered communication cables.

These successful deployments underscore the system's unparalleled environmental adaptability and follow a legacy of life-saving missions—most notably the 2017 Jiuzhaigou earthquake where Dagong’s tethered UAV, carrying a 4G base station, restored communication within three hours for over 3,000 trapped individuals, and the 2023 Typhoon Doksuri relief efforts, where it endured an 80% power grid failure to guarantee 72 hours of continuous coverage.

The 600-Meter Breakthrough: Expanding the Coverage Horizon
The pinnacle of this operational success is Dagong Technology’s 2024 release of the 600-meter altitude limit tethered UAV system. By overcoming immense challenges in power management and propulsion efficiency at high altitudes, this breakthrough drastically expands the signal coverage area, transforming the drone into a towering "airborne communication mast."

At the heart of this system is Dagong’s pioneering Fiber-Optic Power Composite Cable technology. Unlike conventional battery-powered drones constrained by brief flight times, this tethered system draws continuous ground power while transmitting secure, high-fidelity data through built-in optical fibres. The result is an astonishing 72-hour uninterrupted hover capability, a rapid 5-minute deployment time, and the ability to support up to 1,500 simultaneous users within a 5-kilometer coverage radius (exemplified by the flagship DG-M20 model).

Industrial Craftsmanship and National Recognition
As China’s first enterprise dedicated exclusively to tethered UAV R&D since 2015, Dagong Technology holds over 70 technical patents in this specialized sector. Company Founder, Mr. Shen Shizhou, attributes this dominance to a philosophy of "Industrial Craftsmanship": “True craftsmanship is not mere repetitive manufacturing; it is dissecting a complex system with the precision of a master butcher to discover the optimal solution.”

This relentless pursuit of excellence has not gone unnoticed. Beyond disaster relief, Dagong’s tethered UAVs have served as the backbone for national security—providing uninterrupted, broadcast-grade 12G bandwidth real-time video transmission via CCTV during the 70th Anniversary of the PRC and the CPC Centenary. In 2025, acknowledging its transformative contribution to the nation's network communication landscape, the system was proudly inducted into the National Museum of China’s "New Horizons of Network Development Achievement Exhibition."

Powering the Low-Altitude Economy
As the low-altitude economy emerges as a core national strategy, tethered UAVs are transitioning from emergency tools to "new aerial infrastructure." With modular designs now compatible with 5G base stations, LiDAR, and environmental monitors, Dagong Technology is propelling the sector toward deep AI integration and Space-Air-Ground-Sea unified networks.

For global emergency responders, telecom operators, and government agencies seeking robust, persistent, and rapidly deployable aerial solutions, Dagong Technology’s tethered UAV systems represent the ultimate safeguard for the "golden hour"—ensuring that when disaster strikes, the connection between heaven and earth remains unbroken.

About Beijing Dagong Technology Co., Ltd.
Founded in 2015, Beijing Dagong Technology is a certified "Specialized and Sophisticated Little Giant" enterprise and the leading pioneer in China's tethered UAV industry. With a complete product matrix covering 50m to 400m altitude limits (and now the 600m record-breaker), Dagong provides cutting-edge aerial platforms for emergency communications, broadcasting, urban governance, and border inspection.

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