GTMO-1

Overview

GTMO-1 is a submarine telecommunications cable that spans 1528 kilometers, connecting Guantanamo Bay in Cuba with Dania Beach in Florida, United States. It became operational in 2016 and is owned and operated by the U.S. Government. This cable provides a direct, high-capacity fiber-optic link between the two locations, serving both strategic and communications purposes. As a critical piece of infrastructure, GTMO-1 plays a role in ensuring reliable data transmission across the Caribbean region.

The cable’s design and deployment reflect the need for secure and efficient connectivity, particularly between the United States and its facilities in Guantanamo Bay. Its operation underscores the importance of submarine cables in maintaining global communications, as well as in supporting specific governmental and logistical needs in the region.

Route and Landings

GTMO-1 connects two key landing points: Guantanamo Bay in Cuba and Dania Beach in the United States. Guantanamo Bay is located on the southeastern coast of Cuba and serves as a major U.S. military installation. This location is strategically significant due to its proximity to the Caribbean Sea and its role as a logistical hub for U.S. operations in the region. The cable’s landing at Guantanamo Bay ensures secure and direct communications with the mainland United States.

On the U.S. side, the cable lands at Dania Beach, Florida, a coastal city in Broward County. Dania Beach is situated along the Atlantic Ocean and serves as a gateway for submarine cable systems connecting to the U.S. mainland. Its location near major data hubs and infrastructure in South Florida makes it an ideal landing point for international cables. The route of GTMO-1 crosses the Florida Straits, a critical maritime passage that separates the southeastern United States from Cuba, making it a relatively short but strategically important connection.

Ownership and History

GTMO-1 is owned and operated by the U.S. Government, reflecting its primary role in serving governmental and military communications needs. The cable was ready for service in 2016, marking its entry into the global network of submarine telecommunications infrastructure. Its deployment aligns with the U.S. Government's objectives to maintain secure and reliable connectivity with its overseas facilities, particularly in regions of strategic importance such as the Caribbean.

The history of GTMO-1’s development is tied to the broader context of submarine cable systems, which have become essential for global communications. Unlike many commercial cables that are operated by private consortia, GTMO-1 is a government-operated system, emphasizing its specialized role. Its construction and operation highlight the unique requirements of secure communications between the U.S. mainland and Guantanamo Bay.

What Our Measurements Show

Our live monitoring of GTMO-1 reveals detailed performance metrics across 233 measured corridors. The cable demonstrates a best round-trip time (RTT) of 1 millisecond, indicating exceptionally low latency for certain routes. On average, the RTT is 102 milliseconds, which is consistent with the cable’s length and the geographic distance it spans. These measurements reflect the cable’s efficiency in transmitting data between its landing points.

The performance of GTMO-1 underscores its reliability as a communications link. The low latency and consistent data transfer rates make it a valuable asset for secure and high-speed connectivity. Our probes confirm that the cable operates within expected parameters, ensuring stable and efficient data flow between Guantanamo Bay and Dania Beach. This reliability is crucial for both the operational needs of the U.S. Government and the broader communications infrastructure in the region.