Enhanced long-range navigation(e-Loran) System

This system is a long-distance wireless navigation system, and it is used in a wide range of fields such as sea, land, and aircraft
because it can measure its position with high accuracy.

Loran-C time synchronization system
synchronized to

This system uses GNSS (Global Navigation Satellite System) to synchronize the transmission signals of the Pohang and Gwangju Loran transmitting stations belonging to the Loran-C international cooperation chain with the Universal Time of Agreement (UTC).


  • UTC time synchronization performance under GNSS Locked condition: <50ns
  • UTC time synchronization performance under GNSS Unlocked condition: <50ns for 14 days
  • SZC detection resolution for TOT control : <2ns
  • TOT control performance: <10ns
  • GNSS CV performance: <10ns
  • Transmission signal quality measurement function: ECD, SNR, Droop, PKI, PKP


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