ATC
South Korea To Install eLoran To Counter North Korean GPS Jamming
South Korea plans to provide radio navigation coverage with five stations–two legacy loran-C stations (in Pohang and Kwangju) and three yet-to-be built eLoran stations.
South Korea plans to provide radio navigation coverage with five stations–two legacy loran-C stations (in Pohang and Kwangju) and three yet-to-be built eLoran stations.

South Korea has been subject to annual GPS jamming attacks by its North Korean neighbor since 2010. Over that period, jamming has extended over longer periods, with the longest being a continuous 16-day attack, employing various frequencies, techniques and signal strengths. As the jamming periods increased each year, they affected more and more GPS users. Last year, South Korean officials estimated that 1,016 aircraft lost GPS signals, as did 254 ships and a large number of cellphone towers.