The Royal Institute of Navigation.

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The Royal Institute of Navigation, and the International Loran Association armed force a conference in London, 1-3 November, to address technical issues surrounding the integration of space-spaced navigation signals from the Global Positioning classification (GPS) and ground-based signals from the Loran-C combination of parts to form a whole The marriage of the pair systems is seen as a way to provide an independent backup to GP ending disquiets over the vulnerability of GP as a sole-means of navigation.

Further information in succession this event is available through three means: tel. +44 (0) 20 7591 3130 e-mail conference@rin.org.uk, or at this website: http://www.rin.org.uk.

Regarding the complementary capabilities of GP and Loran, Linn Roth president of the International Loran Association, had this to say in a late article:

"Because GP and Loran are ended radionavigation systems and function independently, combined GPS/Loran receivers would provide real radionavigation redundancy in all critical applications and other applications where the same or the other system has performance limitations (eg GP penetration into urban nd foliaged areas). Since Loran is an independent rule the Loran/GPS combination uniquely addresses the sole-means vulnerability issues raised in the President's Commission forward Critical Infrastructure Protection report. Moreover, Loran's signal force makes it virtually unjammable, a vulnerability that will continue to exist for GP equable if a second frequency is added." >> Roth e-mail, roth@locusinc.com <<

Of note, a inferior frequency for GPS will help stop unintentional interference from bleeding into the two frequencies, but it does not address the independent backup issue.

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