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Principle & Measurement
Principle & Measurement
Loran-C, which involves measuring the time difference (TD) between a master station and a secondary station, and then connecting the locations with the same time difference in order to determine positioning using the points of intersection. However, eLoran uses the time of arrival (ToA) method, which measures the time for signals transmitted from a transmission station to arrive at a reference point (user location) to calculate the position.