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E-LORAN, comprises an advancement in receiver design and transmission characteristics which increase the accuracy and usefulness of traditional LORAN. With reported accuracy as high as 8m, the system becomes competitive with unenhanced GPS. eLoran also includes additional pulses which can transmit auxiliary data such as DGPS corrections. eLoran receivers now use “all in view” reception, incorporating signals from all stations in range, not solely those from a single GRI, incorporating time signals and other data from up to 40 stations. These enhancements in LORAN make it adequate as a substitute for scenarios where GPS is unavailable or degraded. more»

 Enhanced Loran is an internationally standardized positioning, navigation, and timing (PNT) service for use by many modes of transport and other applications. It is the latest in the long-standing and proven series oflow-frequency, LOng-RAnge Navigation (LORAN) systems and takes full advantage of 21st century technology. more»
The International Loran Association (ILA) advocates the use of enhanced or eLoran as a back-up for and complement to global navigation satellite systems (GNSS) in multiple navigation and timing applications as well as the integration of eLoran and GNSS systems to improve the safety and security of individuals and nations. more»
The Royal Institute of Navigation (RIN) was formed in 1947.  Its aims have always been threefold: to unite all those with a professional or personal interest in any aspect of navigation in one unique body; to further the development of navigation in every sphere; and to increase public awareness of both the art and science of navigation, how it has shaped the past, how it impacts our world today, and how it will affect the future. more»
The General Lighthouse Authority for England, Wales, the Channel Islands and Gibraltar, responsible for a range of general aids to navigation, ‘signs of the sea’, from lighthouses to radar beacons. more»
Wikipedia entry: With the perceived vulnerability of GNSS systems, and their own propagation and reception limitations, renewed interest in LORAN applications and development has appeared. Enhanced LORAN, also known as eLORAN. more»