GPS jamming attacks from North Korea have increased in frequency and duration since they began in August 2010, prompting the South Korean government to implement an enhanced Loran (eLoran) system that will cover the entire country by 2016.

　　The South Korean government completed the design, development and construction documents for the eLoran system in February, and will procure the system infrastructure through an international competitive tender.

　　GPS jamming attacks from North Korea have increased in frequency and duration since they began in August 2010, prompting the South Korean government to implement an enhanced Loran (eLoran) system that will cover the entire country by 2016.

　　The South Korean government completed the design, development and construction documents for the eLoran system in February, and will procure the system infrastructure through an international competitive tender.

　　Last year, 1,016 aircraft and 254 ships in South Korea experienced GPS outages during 16 days of North Korean interference. The frequency and duration of North Korean GPS jammers jamming has been increasing since four days in 2010.

　　The Korean eLoran system aims to provide better than 20 meters of positioning and navigation accuracy nationwide.

　　The South Korean government hopes to work closely with Russia and China in the near future to expand eLoran’s coverage throughout Northeast Asia.

　　The Korea eLoran system is expected to meet the accuracy, availability, continuity and integrity requirements for ship port entry and approach (HEA) and aircraft non-precision approach (NPA).

　　The eLoran system will be procured through International Competitive Bidding (ICB). Enhanced Loran improves upon previous Loran systems by using updated equipment, signals and operating procedures. These changes enable eLoran to provide better performance and additional services compared to Loran-C.

　　The researchers also noted that North Korea appears to be experimenting with their mobile signal jammer, operating at various transmit powers, frequencies, and jamming intervals.

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