Submarine Broadcast Support

The Submarine Broadcast Support program is a Navy procurement initiative detailed under Budget Line Item (LI) 3107, supporting the acquisition and sustainment of communications and electronics equipment specifically for submarine communications. The primary goal of this program is to ensure secure, reliable, and resilient broadcast capabilities for U.S. Navy submarines, enabling them to receive critical operational orders, intelligence updates, and strategic communications while submerged.

This capability is essential for maintaining the effectiveness and survivability of the submarine fleet, especially in contested or denied environments where traditional communication methods may be compromised. Within the scope of Submarine Broadcast Support, the program focuses on the procurement of advanced broadcast systems and associated equipment that facilitate low-frequency, very low-frequency, and extremely low-frequency communications. These systems are designed to penetrate deep ocean environments, allowing submarines to remain undetected while still maintaining connectivity with command authorities.

The objectives include upgrading legacy broadcast infrastructure, integrating new technologies to enhance bandwidth and reliability, and ensuring compatibility with evolving submarine platforms. The program is managed by the Navy's communications and electronics procurement offices, with oversight from relevant submarine warfare and communications directorates. Procurement activities under LI 3107 include the acquisition of hardware, software, and support services necessary for the installation, integration, and maintenance of broadcast systems across the submarine fleet.

The budget justification indicates annual funding allocations, reflecting ongoing modernization efforts and sustainment requirements. Another key objective of Submarine Broadcast Support is to maintain service readiness for all deployed and in-service submarine broadcast systems. This involves not only procurement of new equipment but also the provision of initial spares, technical support, and lifecycle sustainment activities.

The program ensures that broadcast capabilities remain operational and effective throughout the service life of each submarine, supporting both routine operations and contingency missions. Justification for the program centers on the strategic importance of uninterrupted communications for submarines, which play a critical role in nuclear deterrence, intelligence gathering, and maritime security operations. The classified nature of the program's technical details underscores its significance to national security, with specifics submitted to Congress in classified budget justification books.

The investment in broadcast support is intended to mitigate risks associated with communication loss, enhance command and control, and support the Navy's broader mission objectives. In addition to direct procurement, the program supports integration with other submarine communications initiatives, ensuring interoperability and alignment with Department of Defense (DoD) standards. This approach enables the Navy to leverage advancements in communications technology, adapt to emerging threats, and maintain a technological edge in undersea warfare.

The program also coordinates with related research and development efforts to address future requirements and capability gaps. By focusing on procurement, sustainment, and modernization, the program supports the operational readiness and strategic flexibility of the submarine fleet, ensuring that these assets remain a vital component of U.S. national defense.