Not the first time this has been mentioned but another confirmation of
the GPS alternative and "eLoran stations to be rolled out across UK"
http://eandt.theiet.org/news/2013/jul/eloran-rollout.cfm?utm_source=Adestra&utm_campaign=E%26T%20News%20fortinightly%20-AUTOMATION%20VERSION-%20members&utm_medium=Newsletters-E%26T%20News&utm_content=E%26T%20News%20-%20Members&utm_term=http%3A%2F%2Feandt.theiet.org%2Fnews%2F2013%2Fjul%2Feloran-rollout.cfm&utm_contact=17085095
"/A navigation system resilient to GPS jamming will be installed along
the south and east coast of the UK, it was announced today./
/Following approval by the Department for Transport, seven differential
eLoran stations will be installed to provide alternative position,
navigation and timing (PNT) information to ensure that ships equipped
with eLoran receivers can navigate safely in the event of GPS failure in
one of the busiest shipping regions in the world./
/The GPS signals most ships rely on are vulnerable to both deliberate
and accidental jamming, which is causing increasing concern because of
the wide availability of GPS jammers online for as little as £30 that
are capable of causing complete outages across all receivers currently
on the market./
/The rollout, led by the General Lighthouse Authorities (GLAs) of the UK
and Ireland, is the first in the world to deploy this technology for
shipping companies operating both passenger and cargo services./"
..... etc
Regards
David
(I've designed & built off air standards for 60kHz MSF, 198kHz BBC
radio4 and GPS so it looks another project just added to the DO list)
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