Loran-C in the 21st century Although Loran-C was largely redundant by 2000, it has not universally disappeared due to a number of concerns. One is that the GPS system can be jammed through a variety of means. Although the same is true of Loran-C, the transmitters are close-at-hand and can be adjusted if necessary. More importantly, there are effects that might cause the GPS system to become unusable over wide areas, notably space weather events and potential EMP events. Loran, located entirely under the atmosphere, offers more resilience to these issues. There has been considerable debate about the relative merits of keeping the Loran-C system operational as a result of such considerations.
Loran-C in the 21st century Although Loran-C was largely redundant by 2000, it has not universally disappeared due to a number of concerns One is that the GPS system can be jammed through a variety of means. Although the same is true of Loran-C, the transmitters are close-at-hand and can be adjusted if necessary. More importantly, there are effects that might cause the GPS system to become unusable over wide areas, notably space weather events and potential EMP events. Loran, located entirely under the atmosphere, offers more resilience to these issues There has been considerable debate about the relative merits of keeping the Loran-C system operational as a result of such considerations.