News Item

GLAs install eLoran across seven ports

The General Lighthouse Authories have announced the installation of eLoran in seven ports across the UK.

The General Lighthouse Authorities of the UK and Ireland (GLA) have announced that they have installed differential enhancement to eLoran (dLoran) for seven ports across eastern Britain.

Initial Operational Capability (IOC) - already available for Dover - has been declared for the Thames Estuary, Humber Estuary and approaches to Middlesbrough, Grangemouth, Aberdeen, Harwich and Felixstowe.

eLoran uses very powerful pulse transmissions on 100 kHz and has no common failure mode with Global Navigation Satellite Systems (GNSS), making it ideal for back-up in the event of unavailability of very vulnerable satellite transmissions. It can provide position to ~20 m (95%) and <10 m in differential mode. Importantly, it can also furnish time to ~50 ns - sufficient for power distribution, mobile comms, digital broadcasting and financial trading.

The GLA say many critical instruments on ships use GNSS, and if they fail the consequences could be disastrous.

'All vessels that sail today are massively dependent on GPS,' said Martin Bransby FRIN, Research and Radio Navigation Manager for the General Lighthouse Authorities, as he demonstrated the cataclysmic effects of GPS jamming without a complementary system - like eLoran.

Check out the BBC's coverage of the announcement at the link below.

  • 31 October 2014
  • SCG

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