The US Department of Defense, specifically the Department of the Navy, is seeking to repair and modify 10 units of Transmitter, Counter model 014980561. This equipment is essential for maintaining national security, and the Navy intends to solicit and negotiate with a single source for these specialized services. Potential contractors are invited to respond within 45 days with proposals, quotations, or capability statements. Autumn M. Rau, at the provided email and phone number, can be contacted for further clarification.