A hyperbolic grid navigation system.

The third of four versions developed since WWII, a radio navigation system utilizing master and slave stations transmitting timed pulses. The time difference in reception of pulses from several stations establishes a hyperbolic line of position which may be identified on a LORAN chart. By utilizing signals from two pairs of stations, a fix in position is obtained. Loran-C operates in the 100-110 kHz frequency band.

Loran-C is a system of transmitters that generate electromagnetic pulses riding on a 100 KHz carrier. Transmitters are grouped into chains, of which at least three stations share the same frequency of transmitted pulses. The predecessor technology to eLoran.

Long range navigation system.

An everyday description of the uses and limitations to Long Range Radio Navigation.

A position-fixing system, based on chains of shore-based, low-frequency radio transmissions.