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  Exelis, UrsaNav, Inc., the Department of Homeland Security's Science and Technology Directorate (DHS S&T), and the U.S. Coast Guard (USCG) have entered into a cooperative research and development agreement (CRADA) to test and demonstrate enhanced Loran (e-LORAN) service from former LORAN-C sites.
  These sites are the legacy ground-based radio navigation infrastructure of the decommissioned LORAN-C service that could be retained and upgraded to provide eLORAN low frequency service.