Business Tools

Related Information

On February 7, 2008, the U.S. Department of Homeland Security announced that the organization will begin implementing enhanced Loran (eLoran), an independent national positioning, navigation and timing system that complements the Global Positioning System (GPS) in the event of an outage or disruption in service. The system will be a land-based, independent system and will mitigate any safety, security, or economic effects of a GPS outage or disruption. GPS is a satellite-based system widely used for positioning, navigation, and timing.

The eLoran system will to be an enhanced and modernized version of Loran-C, which has been used by mariners and aviators. Loran-C was originally developed for civil marine use in coastal areas. In addition to providing backup coverage, the signal strength and penetration capability of eLoran will provide support to first responders and other operators in environments that GPS cannot support, such as under heavy foliage, in some underground areas, and in dense high-rise structures. The system will use modernized transmitting stations and an upgraded network.