chapter  14
6 Enhanced Loran (eLoran)
Pages 1

Loran-C unattractive, and eventually become

obsolete. There were plans to decommission the

system due to the emerging use and attractions of

GNSS. In reality however, this situation is being


Referring to Chapter 18, it is clear that any

GNSS is vulnerable to disruption; this can be

either a deliberate attempt to interfere with the

transmissions, satellite failure or because of

adverse atmospheric conditions. With increased

dependence on GNSS for aviation, marine,

vehicle and location-based services, the impact of

any disruption is significant. The solution to this

is to have an alternative navigation system

working alongside GNSS as a backup, e.g. VOR,

DME, inertial navigation (described elsewhere in

the book) or Loran.