U.S. Navy Markets U.S. Navy U.S. Navy Since 2011 the CNSI Chesapeake team has provided a wide range of engineering, documentation and technical support for the Relocatable over the Horizon Radar (ROTHR). Our team of subject matter experts possesses more than 30 years of combined experience and expertise in the operations and maintenance of the electrical communications facilities infrastructure that exist at each site. During our tenure supporting ROTHR, we have provided support in the form of updates to legacy facility drawing packages depicting system upgrades and enhancements that have occurred during the life of each location. Team CNSI has provided engineering services for system grounding, power enhancements and overall life cycle support. The ROTHR system’s main charter is to provide wide area Land Air and Sea surveillance for the counter drug interdiction and anti-terrorist force protection. This cost effective low band surveillance system provides critical data for multiple agencies such as the Department of Homeland Security (DHS), Drug Enforcement Agency (DEA), United States Navy and United States Air Force. The program is administered by the Fleet Surveillance Center located at Naval Support Activity (NSA) Northwest in Chesapeake, Virginia. NSA Northwest is the location of the Operational Control Center (OCC) whose mission is to monitor and interpret data received from the three remote systems. The Virginia system located in Chesapeake and New Kent, Virginia cover the Eastern seaboard of the United States. The Texas system located in Premont and Freer, Texas cover our southwest boarder and the Puerto Rico sites in Juana Diaz and on the island of Vieques cover the Caribbean areas of interest.